Little confusion on sub amp/pro amp connection

[Hipnotic4]

http://www.parts express.com/imageslarge/300-750l.jpg

Need a little clarification on this..Ill be using this plate amp with a pro audio amp..now if I use the HI level inputs to connect it to the proamp, wouldnt the plate amp be supplying the power to the speakers?

Or is the sound just going to be split up by the xover; the low freq is going to play through the plate amp and the High freq. through the proamp??

I basicly want my pro amp to just power my speakers and the plate amp on the sub to power the sub...

 

[j_garcia]

Second one. The x-over pulls off the signal it needs for the sub, and the high pass sends the amplified signal on to the mains. This is how all powered subs/amps that use high level in/out work (at least I've never seen one that didn't). Make sure you check what the highpass is fixed at, as they are all fixed outputs, meaning adjusting the sub's x-over adjusts only the sub, not the high pass output. Often, the highpass is quite high, as high as 120-150Hz, which is usually too high for most speakers.

 

[Hipnotic4]

Damn. im not liking the idea of the Fixed output hpf....

If i did a setup with 2 pro amps..would i have to just get an active crossover, i never seen one for the house im sure they have it though, right?

This way i can just have one input signal for the xover and then 2 output signals from the xover to the amps, one hi...one low..

 

[Hipnotic4]

well the xovers are around 100 and up....grreatt...more things just adding to the list..i need to find a sub plate amp with adjustable high pass filters