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Problem with microphone
-------------------------------------------------------------------

I have a BEHRINGER XM2000S microphone and, for some reason, it doesn´t work with the ROLAND FP90 Piano.
The microphone is OK, for it works nicely when connected, for instance, directly to the computer.

I am following the steps indicated in the manual.
1) Connect the mic in the "Mic - Input" socket.
2) Play with the mic gain wheel (in the rear).
3) Play with the mic volume slider (in the front).

But I don´t get any signal at all.
Am I doing something wrong?
Is there any specification as to what kind of microphones can be used with the ROLAND FP90.

Many thanks for your help.

------------------------
Here you can download a pdf with the specifications of my microphone:
https://www.google.es/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjGvrqujZjzAhURA2MBHUZnBtIQFnoECAMQAQ&url=https%3A%2F%2Fdarkbox.ch%2Fimages%2Fpdf%2Fbehringerxm2000st.pdf&usg=AOvVaw1oDDkHRfXH0iYWgZx5Cpi-

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Originally Posted by colicofrenetico
Problem with microphone
-------------------------------------------------------------------

I have a BEHRINGER XM2000S microphone and, for some reason, it doesn´t work with the ROLAND FP90 Piano.
The microphone is OK, for it works nicely when connected, for instance, directly to the computer.

I am following the steps indicated in the manual.
1) Connect the mic in the "Mic - Input" socket.
2) Play with the mic gain wheel (in the rear).
3) Play with the mic volume slider (in the front).

But I don´t get any signal at all.
Am I doing something wrong?
Is there any specification as to what kind of microphones can be used with the ROLAND FP90.

Many thanks for your help.

------------------------
Here you can download a pdf with the specifications of my microphone:
https://www.google.es/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjGvrqujZjzAhURA2MBHUZnBtIQFnoECAMQAQ&url=https%3A%2F%2Fdarkbox.ch%2Fimages%2Fpdf%2Fbehringerxm2000st.pdf&usg=AOvVaw1oDDkHRfXH0iYWgZx5Cpi-

The mic's output is balanced but the Roland input appears to be unbalanced

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Originally Posted by emenelton
The mic's output is balanced but the Roland input appears to be unbalanced

Many thanks for your help.
So, how could I fix it? (I am quite at a loss when it comes to balanced and unbalanced cables).
Maybe there is an adaptor or something so for this cases?

Last edited by colicofrenetico; 09/24/21 11:39 PM.
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When there are problems with an audio connection between a device that supports balanced signaling ( 3-wire) and a device that supports unbalanced signaling ( 2-wire), questions arise, namely, does the balanced side also support unbalanced operation; what kind of cable, specifically, is connecting your mic and dp ?

A balanced device usually presents an XLR receptacle * and an unbalanced device often presents a 1/4 inch receptacle. In the case of your mic, is the cable detachable or fixed?

* some balanced devices are compatible with unbalanced devices (with the use of a suitable cable) because they have a receptacle that can accept either a 3-wire XLR plug OR they can accept a 1/4 inch plug that inserts into the center of the receptacle. A typical example: a DP with unbalanced 1/4 inch line outputs connected to monitors that support balanced and unbalanced connections.

Your mic - an input device - is probably an older model .... I do not find it listed at Behringer’s support page.

Last edited by drewr; 09/25/21 01:04 AM.

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FWIW --

The XM2000s is a dynamic mic with a 3-pin balanced male XLR (ground, "-", and "+") output.

You'll need an adapter cable, with a female XLR plug (socket?) for the XM2000s, and a 1/4" "TS" (monophonic -- tip / sleeve) phone plug for the Roland --

. . . that's a standard music-store item, and widely available.

The wiring is:

. . . XLR 1/4"

. . . "+" tip
. . . "-" sleeve
. . . ground not connected

(I'm not sure about that, people might connect both "-" and "ground" to "sleeve".)

A question:

. . . What kind of cable is connecting the mic and DP,
. . . . that doesn't work ?


. Charles
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Originally Posted by drewr
When there are problems with an audio connection between a device that supports balanced signaling ( 3-wire) and a device that supports unbalanced signaling ( 2-wire), questions arise, namely, does the balanced side also support unbalanced operation; what kind of cable, specifically, is connecting your mic and dp ?

A balanced device usually presents an XLR receptacle * and an unbalanced device often presents a 1/4 inch receptacle. In the case of your mic, is the cable detachable or fixed?

* some balanced devices are compatible with unbalanced devices (with the use of a suitable cable) because they have a receptacle that can accept either a 3-wire XLR plug OR they can accept a 1/4 inch plug that inserts into the center of the receptacle. A typical example: a DP with unbalanced 1/4 inch line outputs connected to monitors that support balanced and unbalanced connections.

Your mic - an input device - is probably an older model .... I do not find it listed at Behringer’s support page.

Hi there, drewr.
Many thanks for your help.

Yes, the mic is very old. It has more than 20 years.
The mic itself has a XLR male output. Then there is a cable that goes from XLR female to TRS 3.5 mm male.
That TRS 3.5 mm male is what I connect to the piano (via an stereo adapter to 6.3 mm).

The piano doesn´t have any XLR socket, only 6.3 mm, so I guess all its sockets are unbalanced.

So, I´ll try to get an adaptor from TRS 3.5 mm female to TS (mono) 6.3 mm male to see if that works...

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Originally Posted by Charles Cohen
FWIW --

The XM2000s is a dynamic mic with a 3-pin balanced male XLR (ground, "-", and "+") output.

You'll need an adapter cable, with a female XLR plug (socket?) for the XM2000s, and a 1/4" "TS" (monophonic -- tip / sleeve) phone plug for the Roland --

. . . that's a standard music-store item, and widely available.

The wiring is:

. . . XLR 1/4"

. . . "+" tip
. . . "-" sleeve
. . . ground not connected

(I'm not sure about that, people might connect both "-" and "ground" to "sleeve".)

A question:

. . . What kind of cable is connecting the mic and DP,
. . . . that doesn't work ?

Hi there, Charles Cohen.
Many thanks for your answer.

If I understand you right, you mean this kind of cable.

The mic itself has a XLR male output. Then there is a cable that goes from XLR female to TRS 3.5 mm male. That TRS 3.5 mm male is what I connect to the piano (via an stereo adapter to 6.3 mm).

I would prefer to keep using the cable I have instead of buying a new (long and not balanced) one.
So, I was thinking about making the change from 3 pins to 2 pins at the other end of my cable, this is in the TRS 3.5 mm male. Perhaps with an adapter (TRS 3.5 mm female to TS -mono- 6.3 male). I´ll try to find something so.
Many thanks once again for your help.

Last edited by colicofrenetico; 09/25/21 03:35 AM.
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Originally Posted by colicofrenetico
The mic itself has a XLR male output. Then there is a cable that goes from XLR female to TRS 3.5 mm male.

The ring of the TRS 3.5 mm socket has bias voltage for electret capsules used in computer microphones. You shouldn't put that voltage on a dynamic microphone. Always use TS connectors for unbalanced operation.


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Originally Posted by colicofrenetico
Hi there, drewr.
Many thanks for your help.

Yes, the mic is very old. It has more than 20 years.
The mic itself has a XLR male output. Then there is a cable that goes from XLR female to TRS 3.5 mm male.
That TRS 3.5 mm male is what I connect to the piano (via an stereo adapter to 6.3 mm).

The piano doesn´t have any XLR socket, only 6.3 mm, so I guess all its sockets are unbalanced.

So, I´ll try to get an adaptor from TRS 3.5 mm female to TS (mono) 6.3 mm male to see if that works...


What you call 6.3mm we call 1/4 inch.

Ideally, you want a cable that is XLR female on one end and 1/4 inch male TS on the other end ..... if you want to use adapters from TRS 1/8 inch to TS 1/4 inch, this should work but it does add a bit more signal loss between the Mic and dp.


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I just checked the manual (p. 14). Three things:

(a) The picture of the mic and cable shows a "TS" connector (no bias), not a "TRS". So it's what I think of, as a "karaoke mic".

(b) There are _two_ mic gain controls -- one "Mic (Gain)" on the back panel (rotary), and one slider ("Mic Vol") on the front panel.

(c) There's a front-panel "Mic" button or light -- no explanation.

It wouldn't be the first time that there were two gain controls, and one of them was set to zero. Or an on/off switch, and it was set to "off".


. Charles
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Originally Posted by Charles Cohen
I just checked the manual (p. 14). Three things:

(a) The picture of the mic and cable shows a "TS" connector (no bias), not a "TRS". So it's what I think of, as a "karaoke mic".

(b) There are _two_ mic gain controls -- one "Mic (Gain)" on the back panel (rotary), and one slider ("Mic Vol") on the front panel.

(c) There's a front-panel "Mic" button or light -- no explanation.

It wouldn't be the first time that there were two gain controls, and one of them was set to zero. Or an on/off switch, and it was set to "off".

Many thanks, Charles.

Yes. I´ll get a mono adapter to see if that fixes the problem.

Yes, I made sure both the rotary gain in the rear and the slider in the front were at maximum (and then played with them in every possible combination, just in case and to try to hear if there was any signal at all).

That "Mic" button is for adding effects to the microphone.

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Quote
. . .
If I understand you right, you mean this kind of cable.

I don't think so. My Spanish is weak, but I think that cable converts _balanced_ XLR input, to _balanced_ TRS (or vice versa).

I think you need something that converts _balanced_ XLR input to _unbalanced_ TS -- like this:

https://www.amazon.es/dp/B08BCKV5MB/

It is absurd that Roland doesn't specify _what kind of input_ that microphone jack requires.


. Charles
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Quote
. . .
If I understand you right, you mean this kind of cable.

I don't think so. My Spanish is weak, but I think that cable converts _balanced_ XLR input, to _balanced_ TRS (or vice versa).

I think you need something that converts _balanced_ XLR input to _unbalanced_ TS -- like this:

https://www.amazon.es/dp/B08BCKV5MB/

It is absurd that Roland doesn't specify _what kind of input_ that microphone jack requires.


. Charles
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They fixed the omission in the FP_90X Manual

“Mic Input jack
Connect the dynamic microphone (sold separately) here. This is a 1/4” phone (unbalanced) jack.”

I assume the microphone input is identical in FP-90 and FP-90X.


Phil
Roland FP-90 ,Kawai KX-10, Pianoteq 5.0
Roland FP-90x

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