Driver suggestions for my new (sub)woofer project

[Mark.Clappers]

Hello everybody,

I would like for guys (and girls) to give me some ideas on which driver to use for my next project. Low frequency extension for my previous project http://www.diyaudio.com/forums/multi-way/207159-trinium-my-latest-build.html

This project will be powered by Hypex PSC2.400d amps (DSP controlled), I want it to be a sealed design with 2 10'' drivers per side. Max 30L per driver, and go down to ~30Hz. Xover will be an LR8 ~300Hz. For looks I would like the drivers to have a black cone.

2 options I already simulated that seem to do the job with a LT:

Dayton Audio RSS265HF-4
Seas D1001-04 L26ROY

Max cost per driver ~ E200,- Thanks!

 

[m R g S r]

Hmmm 30 to 300Hz from a subwoofer? What tops, or mains, are you using that you need the sub playing all the way up to 300Hz?

 

[Mark.Clappers]

This one: http://www.diyaudio.com/forums/multi-way/207159-trinium-my-latest-build.html

My goal is to turn it into a 3 way system

 

[revboden]

Four of the Dayton's should do quite well in 120L. I like them a lot, tight and punchy little drivers. You'll be limited to ~220w but that should get you ~110db at 30hz with a PEQ center at 30hz/Q=2 and +6db boost.

 

[Mark.Clappers]

Yup, that's what my sims showed to. Looks like a nice match for the amp (400W RMS / channel, 600W max 2 channels)

Because it is DSP controlled I have a lot of freedom to EQ (13 biquads / channel)

http://hypex.nl/docs/PSC2400_manual.pdf

 

[Mark.Clappers]

I did a couple of sims with the Dayton driver and the results look promising. Only thing I am worried about is the group delay.. Is this stil "acceptable" @ 20Hz?

 

[revboden]

IMO below 30ms at 20hz Is all good. You could proably get rid of the High-pass filter by using a little less boost. That'll help the group delay.