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Kawai MP11SE Headphone Static?

Posted By: TylerMorgan1

Kawai MP11SE Headphone Static? - 05/05/19 06:46 PM

I just purchased a Kawai MP11SE (upgraded from a Yamaha DGX650 that I have had for around 4 years). I really like the sound and feel of it, but from the day I bought it I noticed some pretty intense static noise when played through headphones, especially with the master volume above the bare minimum audible level (1/4 master level and above). It is VERY noticeable if the master volume slider is halfway or above. The noise is similar to the noise a guitar tube amp makes when it is cranked loud (without playing), but the Kawai static has a bit more variation / oscillation with its noise, so it is not completely static. It makes this noise with all headphones (my primary headphones are Sennheiser 202), and the noise does not change in response to moving the headphone cord, so it doesn't seem to be anything with the headphones or cord. I also think there are times when the noise isn't present at all, and times when it seems to appear out nowhere. It also does not make this static noise when playing through XLR out or when I record straight to USB and play back on my computer through the same headphones).

I've been playing at low volume to avoid noticing the static, but I just wanted to get your opinions on the matter. Has anyone else noticed this with their Kawai? Does anyone have an idea of what might be causing this and how easy it is to fix? I really like the Kawai and don't really want to return it for such a minor thing, but since I will be primarily playing through headphones, I would love for there to be an easy fix for this. My Yamaha DGX650 never has any static at ANY volume, so this is new to me and I suspect that there is either a defect with the Kawai or there is potentially some sort of electrical interference with the outlet I have the Kawai plugged into. The Kawai is plugged into a different outlet than the Yamaha, and I have not tried to use the outlet that I used for the Yamaha, since the Kawai is a bit hefty to move around. But I could probably try this if it electrical interference with the current outlet is likely to blame.

Your help is much appreciated on this!

Tyler
Posted By: Morodiene

Re: Kawai MP11SE Headphone Static? - 05/05/19 07:20 PM

I know the thing weighs a ton, but might be worth trying to see if it's an issue with that outlet. If that doesn't work, it's definitely worth contacting Kawai tech support.
Posted By: AnthonyPaulO

Re: Kawai MP11SE Headphone Static? - 05/05/19 10:08 PM

I purchased my MP11SE about a month ago and use the headphones all the time, don't have any static or noise issues at all. My dealer told me that most of his customers buy the MP11SE as a quiet alternative to their accoustic grand pianos so they can play without bothering the neighbors, so that in itself leads me to believe that if you're experiencing issues it's definitely something you need to bring up to kawai support about since it's not normal.
Posted By: Abdol

Re: Kawai MP11SE Headphone Static? - 05/05/19 10:40 PM

Originally Posted by TylerMorgan1
I just purchased a Kawai MP11SE (upgraded from a Yamaha DGX650 that I have had for around 4 years). I really like the sound and feel of it, but from the day I bought it I noticed some pretty intense static noise when played through headphones, especially with the master volume above the bare minimum audible level (1/4 master level and above). It is VERY noticeable if the master volume slider is halfway or above. The noise is similar to the noise a guitar tube amp makes when it is cranked loud (without playing), but the Kawai static has a bit more variation / oscillation with its noise, so it is not completely static. It makes this noise with all headphones (my primary headphones are Sennheiser 202), and the noise does not change in response to moving the headphone cord, so it doesn't seem to be anything with the headphones or cord. I also think there are times when the noise isn't present at all, and times when it seems to appear out nowhere. It also does not make this static noise when playing through XLR out or when I record straight to USB and play back on my computer through the same headphones).

I've been playing at low volume to avoid noticing the static, but I just wanted to get your opinions on the matter. Has anyone else noticed this with their Kawai? Does anyone have an idea of what might be causing this and how easy it is to fix? I really like the Kawai and don't really want to return it for such a minor thing, but since I will be primarily playing through headphones, I would love for there to be an easy fix for this. My Yamaha DGX650 never has any static at ANY volume, so this is new to me and I suspect that there is either a defect with the Kawai or there is potentially some sort of electrical interference with the outlet I have the Kawai plugged into. The Kawai is plugged into a different outlet than the Yamaha, and I have not tried to use the outlet that I used for the Yamaha, since the Kawai is a bit hefty to move around. But I could probably try this if it electrical interference with the current outlet is likely to blame.

Your help is much appreciated on this!

Tyler



Are you using more than one USB device? and do you still have the static noise if you disconnect your USB cable?
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/05/19 10:47 PM

You need to plug the MP11SE into the outlet the Yamaha is plugged into.

Maybe an extension cord would suffice instead of moving the MP11SE.

I would definitely contact the dealer or Kawai.
Posted By: Marcos Daniel

Re: Kawai MP11SE Headphone Static? - 05/06/19 02:46 AM

My MP11 (without SE) has a noise when is sending MIDI to my laptop (I don't care because I use Pianoteq but once I noticed that). I don't know if it is because of this particular PC, or something general.
Posted By: BigIslandGuy

Re: Kawai MP11SE Headphone Static? - 05/06/19 02:52 AM

It sounds like you've eliminated anything external to the piano, like a bad cord etc. Sad to say then, but this sounds like what a 'cold joint' on the circuit board might do. Specifically, in the amplification chain to output to the headphones. Not sure how familiar you are with electronics, but a cold joint happens when not enough heat to was applied during the soldering process for the pins being soldered to come up to the melting point of the solder. This can leave a working, but extremely fragile solder joint, that any movement or even just thermal expansion/contraction can break. The piano probably passed inspection and then the cold joint manifested itself later.
Assuming there is nothing wrong with the headphones, then I think you'll have ship it for repairs, unless you are comfortable doing surface mount circuit board work. Of course, if it's under warranty still, you don't want to touch it. Just send it back. I just got one of these myself and the headphone output has no problems, so far anyway.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/06/19 03:18 AM

Most of the time I don't have any USB devices connected, so I don't think there are any USB issues.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/06/19 03:25 AM

Originally Posted by BigIslandGuy
It sounds like you've eliminated anything external to the piano, like a bad cord etc. Sad to say then, but this sounds like what a 'cold joint' on the circuit board might do. Specifically, in the amplification chain to output to the headphones. Not sure how familiar you are with electronics, but a cold joint happens when not enough heat to was applied during the soldering process for the pins being soldered to come up to the melting point of the solder. This can leave a working, but extremely fragile solder joint, that any movement or even just thermal expansion/contraction can break. The piano probably passed inspection and then the cold joint manifested itself later.
Assuming there is nothing wrong with the headphones, then I think you'll have ship it for repairs, unless you are comfortable doing surface mount circuit board work. Of course, if it's under warranty still, you don't want to touch it. Just send it back. I just got one of these myself and the headphone output has no problems, so far anyway.


I think this may be the problem. I decided to record the MP11SE into my audio interface from the headphone jack as a demonstration. See the video here: https://www.youtube.com/watch?v=fB64SzaKTo0&feature=youtu.be

One thing that was very surprising was that I could actually jiggle the cord a bit and get the static to toggle on and off. This was impossible with my headphones...there was no way to disable the static. There is nothing wrong with either the cable or my headphones, so it looks like it is the piano here.

BigIslandGuy: You obviously know way more about electronics than I do. Can you please watch the video and tell me if what you are describing corresponds to the video? Note that the initial static is just the gain from the USB interface. I jiggle the cord at 0:08 and initiate the Kawai buzzing sound (it's obvious when you hear it).

Again, your help is very much appreciated!
Posted By: BigIslandGuy

Re: Kawai MP11SE Headphone Static? - 05/06/19 03:46 AM

Originally Posted by TylerMorgan1
Originally Posted by BigIslandGuy
It sounds like you've eliminated anything external to the piano, like a bad cord etc. Sad to say then, but this sounds like what a 'cold joint' on the circuit board might do. Specifically, in the amplification chain to output to the headphones. Not sure how familiar you are with electronics, but a cold joint happens when not enough heat to was applied during the soldering process for the pins being soldered to come up to the melting point of the solder. This can leave a working, but extremely fragile solder joint, that any movement or even just thermal expansion/contraction can break. The piano probably passed inspection and then the cold joint manifested itself later.
Assuming there is nothing wrong with the headphones, then I think you'll have ship it for repairs, unless you are comfortable doing surface mount circuit board work. Of course, if it's under warranty still, you don't want to touch it. Just send it back. I just got one of these myself and the headphone output has no problems, so far anyway.


I think this may be the problem. I decided to record the MP11SE into my audio interface from the headphone jack as a demonstration. See the video here: https://www.youtube.com/watch?v=fB64SzaKTo0&feature=youtu.be

One thing that was very surprising was that I could actually jiggle the cord a bit and get the static to toggle on and off. This was impossible with my headphones...there was no way to disable the static. There is nothing wrong with either the cable or my headphones, so it looks like it is the piano here.

BigIslandGuy: You obviously know way more about electronics than I do. Can you please watch the video and tell me if what you are describing corresponds to the video? Note that the initial static is just the gain from the USB interface. I jiggle the cord at 0:08 and initiate the Kawai buzzing sound (it's obvious when you hear it).

Again, your help is very much appreciated!

Hmm.. that's odd that you can get it to change with the interface cord but not the headphones. If it's internal to the piano, you'd think it'd be the same because the piano has no notion what's on the other end of the cord.The noise does sound like something is losing its ground connection. Just curious, what happens if you use a different patch cord with the USB interface? If it still gets noises, I'd say there's a 99% chance it is something in the piano. I'm assuming that none of these devices are using an adapter at the piano end to fit its 1/4" phone jack?
Posted By: arc7urus

Re: Kawai MP11SE Headphone Static? - 05/06/19 11:26 AM

Originally Posted by TylerMorgan1
I think this may be the problem. I decided to record the MP11SE into my audio interface from the headphone jack as a demonstration. See the video here: https://www.youtube.com/watch?v=fB64SzaKTo0&feature=youtu.be

One thing that was very surprising was that I could actually jiggle the cord a bit and get the static to toggle on and off. This was impossible with my headphones...there was no way to disable the static. There is nothing wrong with either the cable or my headphones, so it looks like it is the piano here.

BigIslandGuy: You obviously know way more about electronics than I do. Can you please watch the video and tell me if what you are describing corresponds to the video? Note that the initial static is just the gain from the USB interface. I jiggle the cord at 0:08 and initiate the Kawai buzzing sound (it's obvious when you hear it).

Again, your help is very much appreciated!

This seems a grounding issue on the mp11 electric circuits. I would definitely ask for technical support since keeping this electrical issue unresolved could lead to other problems later.
Posted By: Nip

Re: Kawai MP11SE Headphone Static? - 05/06/19 12:10 PM

What I have found over the years is that tolerances of 1/4" plugs - mail and femail - can be a bit different from one brand to the other. Especially stereo ones. The ring part may start later and tounge part in femail does not make proper contact as intended.

So the plug you use to connect to interface might be different. And you also discovered that bending that one could make contact. See if on one channel - left or right and which one is failing.

Try something as simple as phone extension chord and see if different.

Otherwise bending tounge inside piano with a screw driver just a tiny bit towards center can make it work. But turn off power while doing this, and really careful.

Unless phones work well on another device, like audio interface, it can even be cords about to break. The very last before breaking can be like that. But usually bending phone plug cord a bit usually expose the problem. It's really, really thin cords in phones.

Really old connectors can be malicious in that corrosion also creep into inner parts - and I've had those that just go away causing hum - and not - come and go - then suddenly ok again. Only fix for this was to replace connector.

Just a few ideas anyway....
Posted By: BigIslandGuy

Re: Kawai MP11SE Headphone Static? - 05/06/19 06:52 PM

Originally Posted by Nip
What I have found over the years is that tolerances of 1/4" plugs - mail and femail - can be a bit different from one brand to the other. Especially stereo ones. The ring part may start later and tounge part in femail does not make proper contact as intended.

So the plug you use to connect to interface might be different. And you also discovered that bending that one could make contact. See if on one channel - left or right and which one is failing.

Try something as simple as phone extension chord and see if different.

Otherwise bending tounge inside piano with a screw driver just a tiny bit towards center can make it work. But turn off power while doing this, and really careful.

Unless phones work well on another device, like audio interface, it can even be cords about to break. The very last before breaking can be like that. But usually bending phone plug cord a bit usually expose the problem. It's really, really thin cords in phones.

Really old connectors can be malicious in that corrosion also creep into inner parts - and I've had those that just go away causing hum - and not - come and go - then suddenly ok again. Only fix for this was to replace connector.

Just a few ideas anyway....

+1
Posted By: NormB

Re: Kawai MP11SE Headphone Static? - 05/06/19 07:22 PM

And if jiggling the headphone jack affects your 'static' at all, there's always contact cleaner. MG Chemicals 409B is an effective one. You could play it safe and just spray the jack, then insert/reinsert a half dozen times...
Posted By: Charles Cohen

Re: Kawai MP11SE Headphone Static? - 05/06/19 09:03 PM

Originally Posted by NormB
And if jiggling the headphone jack affects your 'static' at all, there's always contact cleaner. MG Chemicals 409B is an effective one. You could play it safe and just spray the jack, then insert/reinsert a half dozen times...


+1. Sometimes it's your turn to be lucky. Contact cleaner is, by far, the cheapest and simplest thing that might work.
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/06/19 10:46 PM

Originally Posted by Charles Cohen
Originally Posted by NormB
And if jiggling the headphone jack affects your 'static' at all, there's always contact cleaner. MG Chemicals 409B is an effective one. You could play it safe and just spray the jack, then insert/reinsert a half dozen times...


+1. Sometimes it's your turn to be lucky. Contact cleaner is, by far, the cheapest and simplest thing that might work.




Absolutely.

Also, I would swap (exchange) out as many things as necessary to rule out each of the other devices before looking for the issue to be with the MP11SE.

To me, the MP11SE is the least likely to be the problem.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/07/19 04:08 AM

OK, thanks for all of your suggestions! This forum is such a great place for things like this. I may try the contact cleaner. Ultimately I think it’s gonna be tough to ship the Kawai back for a replacement. I’ve already grown attached to it and don’t want to have to box it up and wait for another. Too much of a hassle for a minor nuisance. If after a year it is still bothering me, I think I’ll ship it to Kawai under the one-year warranty. I’ll have to eat the initial shipping cost, but I think I’m prepared to risk it at this point.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/07/19 04:12 AM

Also, perhaps it is worth mentioning that all of my headphones use a 1/4 adapter. The HOSA 1/4 cable (i.e., no adapter required) in the video was the only cable that could play without static, so I wonder if there is some interplay with the adapters. I still think the Kawai is partly to blame, since the headphones work fine with the Yamaha, but perhaps the quality control at Kawai uses headphones with a 1/4 plug and would not pick up on adapter issues. Just another thought.
Posted By: newer player

Re: Kawai MP11SE Headphone Static? - 05/07/19 04:43 AM

As noted above by several people, some of the 1/4" plugs are not consistent due to manufacturing variances, sloppy workmanship, metric-imperial measurements.

Your video implies you get the same sound by pulling cable slightly out of interface.

I think you should try a few different brand 1/4 headphones or 1/4 adapters-cable extenders. You also might try just gently pulling your current cable out of the kawai jack say 1mm and playing. Try 2mm. Try 3mm.

Could also be the Kawai jack has some bent or poorly placed contacts that you can DIY fix pretty easily or just have a local tech fix. Don't get electrocuted!

In all cases use caution with ears as something is wonky; I just put the headphones on the desk in front of me for testing purposes.
Posted By: Kawai James

Re: Kawai MP11SE Headphone Static? - 05/07/19 10:01 AM

Hello Tyler,

Please try removing all additional devices connected to the MP11SE, so that you're left with just the GFP-3 pedals and the headphones. Do you still hear the noise?
Also, I notice that you have the Line In volume fader set to approximately 50% - please try setting this fader to the minimum level. Do you still hear the noise?

If so, please contact Kawai America for technical assistance.

Kind regards,
James
x
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/07/19 01:11 PM

Instead of planning to ship it back ….

If you can determine that the MP11SE is the problem ….

You might try asking the dealer if they will replace the one you have.

I have had dealers do that.

That way, you keep the one you have until you get the replacement and are not without your "baby" for an extended period.
Posted By: Marcos Daniel

Re: Kawai MP11SE Headphone Static? - 05/08/19 03:11 AM

Originally Posted by Kawai James

Also, I notice that you have the Line In volume fader set to approximately 50% - please try setting this fader to the minimum level. Do you still hear the noise?

x

+1

with the the line in fader at 50% I would expect (at least) to hear the typical 50Hz (or 60Hz) noise from not connected and amplified line in...
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/08/19 03:29 AM

Originally Posted by Marcos Daniel
Originally Posted by Kawai James

Also, I notice that you have the Line In volume fader set to approximately 50% - please try setting this fader to the minimum level. Do you still hear the noise?

x

+1

with the the line in fader at 50% I would expect (at least) to hear the typical 50Hz (or 60Hz) noise from not connected and amplified line in...


I do not understand why you would expect that.

I have my phone and volume faders at midmark and I have nothing attached to my INPUT connections and I can push my line-in fader up and down and I do not hear anything through my headphone connection.
Posted By: Kawai James

Re: Kawai MP11SE Headphone Static? - 05/08/19 04:05 AM

dmd, yes this is the correct behaviour. The Line In input should be silent when no devices are connected, however I wished to rule out all possibilities, just in case. This is also why I recommended disconnecting any other devices (including USB etc.), in order to start with a defined base configuration.

Kind regards,
James
x
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/08/19 11:36 AM

Originally Posted by Kawai James
dmd, yes this is the correct behaviour. The Line In input should be silent when no devices are connected, however I wished to rule out all possibilities, just in case. This is also why I recommended disconnecting any other devices (including USB etc.), in order to start with a defined based configuration.


Absolutely. I agree.

In fact, you could even disconnect the pedal unit. I do not believe it is necessary during this debugging process.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/08/19 01:35 PM

Hey guys,

The line in volume level is usually at zero, but it just happened to be up a bit at the time of my video since I was practicing with a song. It doesn't appear to have an impact on the static. I also typically play with nothing connected except the footpedal and the headphones, so I don't believe it is an issue with any of the USB connections.

I have decided to experiment a little. I ordered the following two items from Amazon:

https://www.amazon.com/gp/product/B07R3R413D/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B0010D0HO0/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

The first is a 1/4 to 1/8 adapter that is not the typical one piece design, but instead is a longer cord attached to what appears to be a standard 1/4 jack. I'm thinking if there is an issue with my 1/4 to 1/8 adapters, perhaps an adapter that takes a different approach may have better results.

The second item is a stereo breakout cable that will allow me to plug my headphones into the line out jacks. My headphones are pretty low impedance, so it is possible that the line out jacks will provide enough volume to my headphones. As for whether or not the sound quality will be the same as that produced from the headphone jack (less the static, of course), is TBD.

I plan on updating this thread whenever my items arrive, which should be sometime around Thursday or Friday, if I have time.
Posted By: AnthonyPaulO

Re: Kawai MP11SE Headphone Static? - 05/08/19 02:11 PM


That's a TRS adapter for headphone jack... is that right?
Posted By: Frédéric L

Re: Kawai MP11SE Headphone Static? - 05/08/19 02:33 PM

Originally Posted by TylerMorgan1
The second item is a stereo breakout cable that will allow me to plug my headphones into the line out jacks. My headphones are pretty low impedance, so it is possible that the line out jacks will provide enough volume to my headphones. As for whether or not the sound quality will be the same as that produced from the headphone jack (less the static, of course), is TBD.


The impedance of the output must be lower or the same magnitude than the headphone or else the main part of the power will be dissipated in the output resistor.

A line out has typically a 1kohm impedance or more and can’t send much current. If you plug headphones on it the sound will be very low.

If you want to use the line out with headphones, you need an headphone amplifier.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/08/19 02:33 PM

Originally Posted by AnthonyPaulO

That's a TRS adapter for headphone jack... is that right?



Yeah, I think I would need TRS, right? Wouldn't a headphone jack output in stereo? Feel free to correct me if I'm wrong, because I'm a bit of an idiot when it comes to different types of cables / connectors.
Posted By: Marcos Daniel

Re: Kawai MP11SE Headphone Static? - 05/09/19 07:59 PM

Originally Posted by Kawai James
dmd, yes this is the correct behaviour. The Line In input should be silent when no devices are connected, however I wished to rule out all possibilities, just in case. This is also why I recommended disconnecting any other devices (including USB etc.), in order to start with a defined base configuration.

Kind regards,
James
x


I suspect that in my case, as I have an extension cable from line in connected, this causes the 50Hz induction noise.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/10/19 06:08 PM

UPDATE: I tried the new 1/4 to 1/8 adapter. It works fine, but the static is still there. So I think I can rule out an issue with the adapters and headphones. The static, assuming it is not normal, seems to be caused by a malfunction with the Kawai or potentially an issue with the electrical outlet, although I highly doubt the latter is responsible because I have tried two outlets with the same results.

I also tried the mono to stereo adapter to use headphones via the line out jacks. It works with no static, but the volume is very attenuated, so it's not really a viable solution.

Interestingly, though, I used the stereo / mono adapter to plug my iPhone into the 1/4 inch line in jacks to play along with songs. The only output I can get is in my right headphone, though; nothing ever comes out of the left side. I can plug in either of the two 1/4 ends from the adapter into EITHER of the line in jacks on the piano, and I always get sound from the right side, but never the left. Is this behavior normal? Shouldn't the line in jack for LEFT always produce sound on my left side, and vice versa? I'm thinking the line in jacks may not be working correctly, either, but perhaps this is an issue with the HOSA adapter. (Just to be clear, I am plugging into my iphone with a stereo 1/8 cable, and putting the opposite end of the stereo 1/8 cable into the HOSA adapter, and putting both the red and black 1/4 mono poles into the Kawai line in jacks; I only get sound out of my right earphone with this connection, as well).

Also, if I were to plug my iPhone into just the LEFT/MONO line in jack with a stereo (TRS) cable, should I get output in both earphones, assuming nothing is plugged into the RIGHT line in jack?

I think I'm likely going to be making a call to Kawai tech support soon. There just seems to be too much fishiness with the line in and headphone jacks on the Kawai. It's pretty frustrating given how much I really like the instrument. Crossing my fingers that I can figure all this out!

Tyler
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/10/19 07:56 PM

Well, if I am the Kawai technician ….

The first thing I will ask you is …

How do you know the problem is not the TASCAM device you are plugging into ?

Are you ready with the answer to that ?
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/10/19 08:12 PM

Originally Posted by dmd
Well, if I am the Kawai technician ….

The first thing I will ask you is …

How do you know the problem is not the TASCAM device you are plugging into ?

Are you ready with the answer to that ?



I was just using the Tascam to make the video for this forum. Normally I just plug straight into headphones from the keyboard, and that's where the static comes from. Although the line in jacks seem to be giving me issues, too.

I don't really know why the Tascam didn't give out static until the cable was manipulated. The whole thing is really perplexing to me. Every other headphone and cable combination I have tried has given static.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/10/19 08:13 PM

Originally Posted by dmd
Well, if I am the Kawai technician ….

The first thing I will ask you is …

How do you know the problem is not the TASCAM device you are plugging into ?

Are you ready with the answer to that ?



Does your MP11SE not produce ANY static noise of any kind when the master volume slider is above halfway? At max?
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/10/19 11:18 PM

Originally Posted by TylerMorgan1
Originally Posted by dmd
Well, if I am the Kawai technician ….

The first thing I will ask you is …

How do you know the problem is not the TASCAM device you are plugging into ?

Are you ready with the answer to that ?



Does your MP11SE not produce ANY static noise of any kind when the master volume slider is above halfway? At max?


Never.

I have not gone through this entire thread.

With that said …

If this was something I experienced, my first move would be to swap out my headphones with a difference set of headphones and see if it still is a problem.

If it is …. then it would seem that the MP11SE is the problem.

All that other stuff you included with your testing would seem unnecessary.

Did you try a different set of headphones ?


Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 05/11/19 12:17 AM

Originally Posted by dmd
Originally Posted by TylerMorgan1
Originally Posted by dmd
Well, if I am the Kawai technician ….

The first thing I will ask you is …

How do you know the problem is not the TASCAM device you are plugging into ?

Are you ready with the answer to that ?



Does your MP11SE not produce ANY static noise of any kind when the master volume slider is above halfway? At max?


Never.

I have not gone through this entire thread.

With that said …

If this was something I experienced, my first move would be to swap out my headphones with a difference set of headphones and see if it still is a problem.

If it is …. then it would seem that the MP11SE is the problem.

All that other stuff you included with your testing would seem unnecessary.

Did you try a different set of headphones ?





Yeah, I tried four sets of headphones, with four different 1/8 to 1/4 adapters. All had static. I talked with Kawai tech support on the phone, and in the process I realized that the headphone static/buzz is only present in the left earphone (on all headphones). The right earphone has zero static. We are convinced that there is an issue with the unit frown Which means I will likely be contacting Musician's Friend to set up an exchange. I like the MP11SE a ton, so I definitely want to just exchange it for another, hopefully not faulty, MP11SE.

Realizing that the static is isolated in the left earphone pretty much solidified my hunch that there is an issue with the Kawai and not my headphones / outlets. If the exchange piano does the same thing, I'm going to lose it because if it turns out the unit is not defective, then I have literally zero idea what else it could be.
Posted By: dmd

Re: Kawai MP11SE Headphone Static? - 05/11/19 02:43 AM

Originally Posted by TylerMorgan1
If the exchange piano does the same thing, I'm going to lose it because if it turns out the unit is not defective, then I have literally zero idea what else it could be.


From the sound of things, I think the exchange MP11SE will be fine.
Posted By: AnthonyPaulO

Re: Kawai MP11SE Headphone Static? - 06/12/19 01:06 AM

Was this ever resolved? I'm curious as to what it turned out to be.
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 06/12/19 11:44 AM

Originally Posted by AnthonyPaulO
Was this ever resolved? I'm curious as to what it turned out to be.


Hey Anthony,

I wound up shipping the unit back to Musician’s Friend, and they are sending a replacement. I just received the shipment notification, and the replacement should arrive this Friday. I’m planning on updating this thread this weekend. Hopefully the replacement will be perfect!
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 06/15/19 11:13 PM

Originally Posted by AnthonyPaulO
Was this ever resolved? I'm curious as to what it turned out to be.



OK, after a very thorough process of testing the replacement, I am very happy to report that everything is in working order on the replacement. No headphone static at all with the master volume slider at any level, and the line-in inputs put out sound from both left and right sides of my headphones (these were issues with the first Kawai I received, in case you don't want to read back through the thread). I also tested out the XLR outs, line outs, USB in (for saving to USB drive), and USB out (midi out), and all performed flawlessly.

So the first Kawai I received shipped via R & L freight with the special requirement that I had to be home and help the delivery driver unload the package. After all, it is a very expensive, delicate instrument. Alas, the first shipment box did have a slight gouge in the package on the side where the headphone and line in ports are located. My guess is that whatever caused this gouge likely also caused my issues. So perhaps it is not wise to place blame on Kawai in any way.

However, it seems that there is a fair amount of luck involved with whether your shipment arrives damaged or not. The flawless replacement I received was shipped via FedEx Ground. Given that it is a $2.5k package with flamboyant markers all over the box warning of its delicacy, I assumed I would need to both sign for the package and help the delivery driver unload the piano (it is a 100 lb. box). So naturally I stayed home from work and stayed tuned for the doorbell to ring. As is my OCD habit when I am waiting on a cool package, I anxiously checked the tracking status of the package throughout the morning, even though it was pretty obvious that I would be the first to know when the piano arrived, as the FedEx guy would have to have my help to unload the beast. So imagine my surprise when at 1:03 P.M., I looked up the status and it said DELIVERED 12:59 P.M. I'm standing right by the front door the whole time, and there has been no ring, no knock, nada. Nothing. Delivered? Did they get the wrong address...did the guy press the delivered button too soon? Naturally I immediately open the front door, walk outside, and see nothing. Until I walk around the house and see my piano, dropped off as if it were a $20 bookstand from IKEA, propped up against the house, with the midday glaring Mississippi sun shining upon it.


[img]https://ibb.co/82p3dCH[/img]


Perhaps the delivery driver wanted it to be in the sun so that I could clearly read the "DO NOT STAND" instructions printed on the box that he/she so nonchalantly ignored. Thankfully I was pretty quick to the scene, so the piano was swiftly taken inside and saved from baking in the afternoon sun. And thankfully the piano is in great condition, so I don't have to worry about the delivery company damaging my brand new piano purchase. That is, until the next time I order one online...
Posted By: Kawai James

Re: Kawai MP11SE Headphone Static? - 06/17/19 12:24 AM

Thanks for the update TylerMorgan1, I'm glad to read that the replacement instrument is working correctly.

Kind regards,
James
x
Posted By: TylerMorgan1

Re: Kawai MP11SE Headphone Static? - 06/17/19 03:36 AM

Originally Posted by Kawai James
Thanks for the update TylerMorgan1, I'm glad to read that the replacement instrument is working correctly.

Kind regards,
James
x


Hey James, thanks for your input to this thread and all the others. Your comments really helped convince me that a Kawai was a good choice, and I’m having a ton of fun with my MP11SE. It’s such a solid instrument, and it’s awesome to know that the people that work at Kawai are passionate enough to have a presence on a site such as this. Thanks again!
Posted By: Kawai James

Re: Kawai MP11SE Headphone Static? - 06/17/19 03:54 AM

blush
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