Hello, i have a nad 372 with monitor in an out 1 & 2. I can cannect both equalizers to it. When i press buttons for both monitors on the front, both lite up, but when i click the cd source button, monitor 2 button goes off. Is it possible to use two equalizers? is it worth using two equalizers? and does the one equalizer work for both A & B channels? If not, how can i get it to work?
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As I have figured from your question you are trying to independently control levels for two sets of Bose speakers attached to your NAD amplifier. The problem lies in that the amplifier can only read one signal at a time, so in theory it will only accept a signal from one equalizer and output it to speakers attached to A and/or B terminals. In order to process different eq settings to two seperate pairs of speakers you will need to use two amplifiers, or an amplifier with built in channel controls for speaker set A and speaker set B.
Only if you replace the pot with two resistors of equal value. Both need to be also equal to 1/2 the value of the pot. Then at the point the 2 res tie together -- Tie that point to the middle lead location and the other leads to the other points where the pot was connected.
Use 1/2 watt or 1 watt res.
Bear in mind that 901's require exclusive use of any amplifier they use. You shouldn't expect to use conventional speakers alongside them on the same amp. The reason is that the 901's require the use of their dedicated Active Equalizer to shape the frequency spectrun to match their drivers' response curves, resulting in a flat sound output. Applying that kind of equalization to any conventional speakers will sound to sharp at the extremes and may even potentially damage them.
For connection I would run a pair of RCA cables from the L&R Audio Line OUT of whatever preamp or source you're using to the Active EQ's Line IN; then the EQ's Line OUT to a NAD amp's Line IN. DEselect any Tape options on the Active EQ, attach the 901's to the new amp, set the NAD volume controls pretty high (and leave them alone), run through any level setup procedures in your control electronics for volume, etc and you're done.
I assume this amp does not have separate amp and preamp. (I cannot get the service manual for free...) Connect the equalizer input to Tape OUT on the amp. Connect the Equalizer output to Tape IN on the amp. (Match up lefts and rights, eh?)
Now, when you press in the tape monitor button, whatever you have playing runs through the equalizer. Tape monitor button out, you hear the sound without the equalizer.
please make sure your receiver has a tape monitor switch on the front panel or pre-in/out sockets at the rear. only then all sources will play thru the bose equalizer. also remember if you need a 5.1 or greater setup, you will need 2 amps/receivers.