Bi-amping McIntosh MC2120 and MC2125 with Klipsch RP-5


Hi all,

I have a MC2125 and just inherited an MC2120. These should be pretty much the same amp, except the MC2125 has meters.

I have AudioQuest quad wire (Robin Hood and SubZero) and was trying to figure out the best way wire trying to bi-amp.

Question (equipment below):

-Should I run the low post from each speaker to 1 amp (amp running as mono) and the highs from each speaker to the other amp?

Equipment:

Mofi Ultradeck —> Transparent Audio Super Phono Interconnects —> Sutherland 20/20 phono preamp —>Transparent ->Audible Illusions Modulus 3A tube phone stage —> AudioQuest Colombia —> McIntosh MC2125 —> Audioquest SubZero biwire and RobinHood Biwire —> old Klipsch RP-5 with powered 12”.

Thanks in advance for any suggestions on wiring!

 

 

hockey4496

If the amps are sonically identical, I’d be inclined to wire them in a vertical bi-amp configuration.  One amp on the left, one amp on the right.  You get the benefit of improved separation and soundstage, and each channel has it’s own power supply.  There could be some improvement in clarity as well.  Many of the same benefits of monoblocks.

You can try a horizontal setup as well, and see which you prefer.  There are pros and cons with each. 

If your subwoofer has a high pass filter, you could experiment with limiting the low bass frequencies to your RP-5s too.

 

 

Thanks! So I guess that’s exactly what I was describing - vertical versus horizontal bi-amping. I will try with the vertical as suggested and go from there, thank you!

  Considering the speakers are 96db and have powered bass drivers, I’d doubt you’re going to need it or see much improvement at all. you’re only using a fraction of the power of one amp let alone two. Honestly I doubt you’re using more than 2wpc of one amp. No idea why you would want a 240 wpc amp to drive tweeters and another to drive the midrange. Seems to me you’re going the wrong direction. That said if you have them try it.

Thanks, in what way do you mean I am going in the wrong direction? I agree, with these particular speakers I have plenty of power driving them with my current solo Mc2125 but I no have my dads Mc2120 and I don’t intend to sell it so I may as well use it. Are you saying this would deteriorate my current sound?