2. amps-preamps
  3. 126700-4635

Is my amp the problem?

I recently decided to bi-amp my speakers so I purchased a crown xls 1002. (225w 8 ohm). I am driving a 10 woofer. It sounds horrible. I can't seem to get it to put out much power despite its rating even when I make all the right adjustments. Its a class D amp. Is that my problem? It just doesn't seem to have any Ba**s. Lol. Advice is appreciated.
jimbones
auxinput
2,920 posts
 
@jimbones - which Parasound did you buy?  Which active crossover does your buddy have?  Just call me curious.
atmasphere's avatar
atmasphere
11,806 posts
 
@jimbones , FWIW, polarity is also known as absolute phase. I'm **not** talking about that, instead the phase of just one speaker as opposed to both. We might be talking the same thing, but since there is a bit of interpretation here I thought it a good idea to be certain.
jimbones OP
256 posts
 
atmosphere: we agree. I did find that the phase relationship between drivers was messed up. I had to invert my mid and put the tweeter in positive phase. I use the omnimic and the impulse was negative. Now it is positive. I believe we are saying the same thing :)

jimbones OP
256 posts
 
Aux i got a HCA 1000. They are supposed to have high current capability. If I need to move up the ladder eventually Ill do so.
The XO is a Pioneer SF 700. I will use it only as a low pass at approx 200hz. This is to compare with the mindsp re input impedance and output voltage. I am using a cap on the input of the Modwright as a hi pass.
auxinput
2,920 posts
 

Yes, I would agree that the HCA 1000 would have better current capability than the Crown.  Looks like it has 48,000 uf total capacitance (24,000uf per channel).  Not a huge amount, but the amp is only 100w/8ohm.

http://cd8ba0b44a15c10065fd-24461f391e20b7336331d5789078af53.r23.cf1.rackcdn.com/polkaudio.vanillaforums.com/editor/vg/enhutqtd31pz.jpg

Crown XLS:

http://s290.photobucket.com/user/iso_da_baric/media/IMG_3047.jpg.html

Keep us posted how things work out!

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