TOPIC:

At the moment I passively bi-amp my speakers where only subwoofer and amplifier running main speakers bass drivers is connected to MiniDSP 2x4HD and mids/highs run directly from another amplifier . This way top is left unprocessed and I can equalize bass drivers and subwoofer with REW PEQs . I've looked into DDRC upgrade but I'm not certain if this is going to work with the way I route the signal , from what I can see in the manual test signal is being sent from computer to MiniDSP , is there a way so I can route it to my preamplifier so I can do full range frequency response ?
Many thanks 

Any other way than putting minidsp in front of the preamp , any advice would be nice 
thank you

Ok , I'll try one more time , 
would be possible to run Dirac test signal in a limited range say 20-500Hz as my miniDSP is connected in a passive bi-amping to woofers only ?

You can limit the range of correction, see the miniDSP Dirac Live manual.

speakee wrote:

You can limit the range of correction, see the miniDSP Dirac Live manual.

You can limit the range of correction as you say but this issue here is the frequency range of the test signals.

I'm not certain which is why I haven't replied before but I suspect Dirac Live is unlikely to be a good option for the OP.