You will have to do it by ear; you are using two different amps with different power ratings and input sensitivities into two different loads so you will have to use a variable input on the Mac to balance them. There is always the possibility that this will not work, that is that the Mac is less sensitive than the amp in the CJ even at its highest setting. The you are in trouble unless you can adjust the internal amp level as well. This sounds complicated but what I am saying is this; you will end up with 2 amps with different sound levels; AS LONG AS the louder one has the volume control so you can lower its volume you are all right. If the louder one has no volume control you have problems.
Bi-amping - Conrad Johnson CAV-50 & McIntosh MC275
Need some advise on the setting of the McIntosh MC275 volume pot.
Earlier today I hook-up my Conrad Johnson CAV-50 (integrated amp with pre-out, max. 45 Watts/ch) to the bi-wire input to drive the tweeter of my speakers, and then I connect the preamp output of the CAV-50 to the McIntosh MC275 (power amp, Max. 75 Watts/ch) to drive the woofers. Since there are 2 Volume potentiometers on the MC275, just wonder where should I set them to. Here are more info:
From the CAV-50's manual:
"PRE-OUT:
Connect this output to the input of a secondary amp......We recommend the use of an amp with an input impedance of 50k ohm or higher.....
Specifications:
Hum and Noise (PRE OUT): 94 dB below 2.5V"
From the MC275 manual:
"Sensitivity
1.2 Volt unbalance (since I am using RCA's, so I assume it's unbalance)
2.5 Volt balance
While the name plate of the amp MC275 specify:
Input Sensitivity
Unbalance - 1.2 V variable, 60 kohm
Balance - 2.5 V fixed, 180 kohm"
Again, where should I set the volume knobs to? 1.2 V or 2.5 V; or even somewhere in between to get the right balance of sound.
Earlier today I hook-up my Conrad Johnson CAV-50 (integrated amp with pre-out, max. 45 Watts/ch) to the bi-wire input to drive the tweeter of my speakers, and then I connect the preamp output of the CAV-50 to the McIntosh MC275 (power amp, Max. 75 Watts/ch) to drive the woofers. Since there are 2 Volume potentiometers on the MC275, just wonder where should I set them to. Here are more info:
From the CAV-50's manual:
"PRE-OUT:
Connect this output to the input of a secondary amp......We recommend the use of an amp with an input impedance of 50k ohm or higher.....
Specifications:
Hum and Noise (PRE OUT): 94 dB below 2.5V"
From the MC275 manual:
"Sensitivity
1.2 Volt unbalance (since I am using RCA's, so I assume it's unbalance)
2.5 Volt balance
While the name plate of the amp MC275 specify:
Input Sensitivity
Unbalance - 1.2 V variable, 60 kohm
Balance - 2.5 V fixed, 180 kohm"
Again, where should I set the volume knobs to? 1.2 V or 2.5 V; or even somewhere in between to get the right balance of sound.
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