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SPL when designing

I am in the process of designing some speaker cabinets with Vituix Cad.  Got a question.  The main speakers will be driven by a flea watt 6 watt amp.  The sub by a Hypex 250 watt amp.  Should I try to match the efficiency of the drivers even though the subwoofer and mains will be driven by separate amps.  If I want the preamp to be the main volume control (I hate setting the sub all the time), would it help at all?

128x128jgoldrick

Showing 3 responses by holmz

holmz's avatar
holmz
2,328 posts
 

@jgoldrick which model Hypex?
FA25?

 

On @erik_squires point…

There is a built in DSP on the FA model Hypex amps, but I do not recall if they do a pass through, and/or DSP on that pass through.
Are you running the tweeter with a simple capacitor as a passive crossover? 

holmz's avatar
holmz
2,328 posts
 

I doubt it.
Just have the preamp feed both, and set the Hypex gain to be complimentary.

It might need more “loudness” when the preamp is down low.

Is the sub sealed?
You probably want to pay attention to group delay more than SPL (IMO)

holmz's avatar
holmz
2,328 posts
 

You know that they make an FA252 and FA253 ?

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