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Discussion Starter · #1 ·
I am currently running a 6.1 HT system with a Pioneer Elite VSX-72TXV and am curious about using my Arcam AVR300 as a second amp for the fronts. I’m assuming I would run the preouts to the Arcam, with it in Direct Mode. I’m concerned about possible phase issues, though I’m sure that’s just the beginning...

So, my question is: Is this routine enough that a solid guide is already available? How much correction should I expect, requiring REW, etc? Could MCACC address such issues? Would I be better off powering the HF or LF with the Arcam? Or, have I simply lost my mind?

I look forward to all that I can learn,
Michael T
 

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Discussion Starter · #3 ·
What speakers? Presumably biamp terminals?
Your biggest concern shouldn't be "phase', it should be gain and ground loops. To maintain the original frequency response, it's critical that the LF and HF legs of the speaker XO (effectively a voltage divider) be fed the exact power they would have been fed by a single amp...
I had read about gain matching. Is there a way to measure and adjust that on dissimilar equipment?

I think I had confused phase with time alignment. Surely the signals received by the LF and HF will have to be coordinated. What steps would one take to do so?

What steps does one take to address ground loops resulting from this arrangement?

My speakers are Polk RTi150 and CS400.

Thanks for your response. While there will be issues, I am interested in what it will take overcome those challenges.

Surely I am not pioneering this approach?
 
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