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#2083109 - 05/15/13 01:52 PM help with adding sub woofer  
Joined: Jul 2012
Posts: 10
sonycrr Offline
Junior Member
sonycrr  Offline
Junior Member

Joined: Jul 2012
Posts: 10
nyc
does anyone know if this would be a good sub woofer to add to a kawai es7?

if not, what are specs that i should be looking for when purchasing a sub woofer?

thanks!

http://www.newegg.com/Product/Produ..._-na&Item=N82E16882269041&cm_sp=


Spec
Type Subwoofer
Channels Subwoofer Only

Woofer: 10" (25.4cm) front-firing woofer
Power Rating
Rated Power100 watts dynamic, 50 watts continuous (FTC)

Frequency Response
45Hz-150Hz+/-3dB

Connectors
Two line level/LFE RCA inputs and two high level speaker inputs
Power Supply
100 - 240 V, 50/60 Hz


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#2083216 - 05/15/13 05:06 PM Re: help with adding sub woofer [Re: sonycrr]  
Joined: Nov 2012
Posts: 1,352
Marko in Boston Offline
1000 Post Club Member
Marko in Boston  Offline
1000 Post Club Member

Joined: Nov 2012
Posts: 1,352
Boston, Massachusetts
I use this Polk subwoofer I use with my ES7 sometimes. http://www.polkaudio.com/products/psw111

It's small but WAY powerful - almost too much. Sound is very clean and tight. Not as muddy or boomy as you might expect. Great for 8" woofer and box is slim size in comparison to others. Just add a touch of base when needed.

I got it on NewEgg as well for $199. I think because it might be discontinued , but I still see it for sale everywhere

[Linked Image]





KAWAI ES7 | ROLAND RD-800 | YAMAHA CP4 | YAMAHA STAGEPAS 400i | PRESONUS R65 & T10 | SHURE SRH1540 | SENNHEISER HD650 | K&M OMEGA
#2083234 - 05/15/13 05:30 PM Re: help with adding sub woofer [Re: sonycrr]  
Joined: Feb 2013
Posts: 752
Mwm Offline
500 Post Club Member
Mwm  Offline
500 Post Club Member

Joined: Feb 2013
Posts: 752
The most important spec on any speaker, including subwoofers, is the %THD. The lower, the better. If the harmonic distortion is more than a few percent, it will sound boomy. A Velodyne DD15 or 18 will max out below 1/2 percent. You'll never hear the subwoofer unless there is real energy at the lower frequencies, but, it will cost you a bundle.

#2083280 - 05/15/13 07:19 PM Re: help with adding sub woofer [Re: sonycrr]  
Joined: Jul 2012
Posts: 10
sonycrr Offline
Junior Member
sonycrr  Offline
Junior Member

Joined: Jul 2012
Posts: 10
nyc
thank you marco and mwm.

@marco it is a little more than what i want to spend right now, thanks for the suggestion though. smile

@mwm i don't see %thd listed on the specs of the model i was inquiring about. Safe to assume that particular model is not good for digital pianos?

I'm just really liking the price of it.


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#2083329 - 05/15/13 09:48 PM Re: help with adding sub woofer [Re: sonycrr]  
Joined: Feb 2013
Posts: 752
Mwm Offline
500 Post Club Member
Mwm  Offline
500 Post Club Member

Joined: Feb 2013
Posts: 752
Originally Posted by sonycrr
thank you marco and mwm.

@marco it is a little more than what i want to spend right now, thanks for the suggestion though. smile

@mwm i don't see %thd listed on the specs of the model i was inquiring about. Safe to assume that particular model is not good for digital pianos?

I'm just really liking the price of it.


Any sub will work. It is just what type of sound you are looking for. I used to run my Clavinova through my Kef Reference speakers and the Velodyne sub, which mace it sound like a 9 foot in the room. I am running the Kefs at 500 watts and the Velodyne has a dynamic power output of 3000 watts at 1/2 percent distortion. Very loud.


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