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-   -   DSP + passive XO hybrid? (http://www.diyaudio.com/forums/multi-way/192270-dsp-passive-xo-hybrid.html)

tommus 8th July 2011 07:35 PM

DSP + passive XO hybrid?
 
Is there any sense in using a hybrid of DSP and a passive crossover on a speaker?

I am thinking about a 2.1 channel system with open baffle panels and a sub (maybe dipole, maybe boxed) It will be used for small spaces/moderate levels connected to a computer or portable device.

I will use the miniDSP 2x4 for the lowpass on the sub (with it's own amp) and send the mid/high to the 2-way panels through a 2 ch. amp and simple XO (drivers and XO yet to be chosen/designed...)

My thinking is to use the passive XO only for bandpass duties (and tweeter protection) and use the active EQ on the miniDSP for baffle comp, level adjustment, etc. on the 2-way panels before the amplification stage. Then I can use a single amp and my tube buffer.

Any reason not to try this?

john k... 8th July 2011 09:35 PM

Quote:

Originally Posted by tommus (Post 2632885)
Is there any sense in using a hybrid of DSP and a passive crossover on a speaker?

I am thinking about a 2.1 channel system with open baffle panels and a sub (maybe dipole, maybe boxed) It will be used for small spaces/moderate levels connected to a computer or portable device.

I will use the miniDSP 2x4 for the lowpass on the sub (with it's own amp) and send the mid/high to the 2-way panels through a 2 ch. amp and simple XO (drivers and XO yet to be chosen/designed...)

My thinking is to use the passive XO only for bandpass duties (and tweeter protection) and use the active EQ on the miniDSP for baffle comp, level adjustment, etc. on the 2-way panels before the amplification stage. Then I can use a single amp and my tube buffer.

Any reason not to try this?


It makes perfect sense.

paulspencer 9th July 2011 09:48 AM

I agree also that it's a very promising idea, especially for those who like to spend a bit more on amps.

doug20 9th July 2011 02:03 PM

Im not sure if this is the same thing but for many years I have added bass bins (high performance subwoofer designs that run from 20Hz to 200Hz) to any main speaker I have owned making that speaker a full range design. I have used the DCX and the MiniDSP with great success.

If you do use the MiniDSP and you require > .9Vrms output to your amp for full power then you need the Balanced version that offers 2V.

Tenson 9th July 2011 03:23 PM

Makes sense indeed.


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