How to install my bose 1201 equalized amplifier

The Bose 901 speakers require the use of a specific equalizer that is designed to optimize their performance. If you have a Bose 901 equalizer, you will need to connect it to your Lafayette 3500 receiver in order to properly use the speakers.
Here are the general steps for connecting the Bose 901 equalizer to your Lafayette 3500 receiver:

1. First, ensure that the power is turned off on both the receiver and the equalizer.
2. Locate the preamp output jacks on your Lafayette 3500 receiver. These will typically be labeled as "pre out" or "line out".
3. Connect a pair of RCA cables from the preamp output jacks on your receiver to the input jacks on your Bose 901 equalizer. These jacks are typically labeled as "preamp in" or "line in".
4. Next, connect another pair of RCA cables from the output jacks on your Bose 901 equalizer to the main amplifier input jacks on your receiver. These jacks are typically labeled as "main in".
5. Turn on your receiver and equalizer, and ensure that the volume levels are set to a low level before playing any music.
6. Set the Bose 901 equalizer to the "On" position, and adjust the various equalizer controls to your preferred settings.
7. Finally, play some music and adjust the volume levels as needed. You should notice a significant improvement in the sound quality of your Bose 901 speakers with the equalizer properly connected.

Note: It's important to use the Bose 901 equalizer specifically designed for the speakers. Using a different equalizer or not using any equalizer at all may result in poor sound quality or damage to the speakers.

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.

Yes, you can hook up your Bose 901 equalizer to a Yamaha A S701 amplifier. Make sure to use the appropriate cables and connectors to ensure that the signal is transmitted properly. Additionally, make sure to check the amplifier and equalizer settings to ensure that the sound is balanced.

The BOSE 901 equalizer will be inserted between your preamplifier and power amplifier, for more info please see here: https://deercreekaudio.com/resources#f467075b-ce37-49ea-b5f7-10e8eb2aa4f6

any equalizer that has the capacity to drive the speakers will do the job

You can do this however you will need a separate power amplifier.

See notes here: https://deercreekaudio.com/blogs-%26-updates/f/connecting-your-eq901-to-an-audio-video-receiver-avr

1. Connect the pre-out main left and right to the EQ901 inputs 1 and 2, and the EQ901 outputs 1 and 2 to the power amplifier inputs left and right
2. Connect your 901 speaker to the power amplifier outputs

The equalized signal will now play through the front left and right speaker outputs in the stereo and home theater modes.

1

Examine your receiver to be sure it has a tape monitor loop. Receivers with a tape monitor loop will have a button or switch on the front for "Tape Monitor," and have two sets of RCA connections on the back, one labelled "Tape In," and the other "Tape Out."

2

Take the two cables that are provided with the 901 speakers and insert one end of the first cable into the "Amplifier Input" jacks of the equalizer. Connect the red connector to the R input and the other connector to the L input. Connect the other end of this cable into the "Tape Out" connections on the receiver. Again, hook red to R and the other to L.

3

Connect the second cable between the "Amplifier Output" jacks of the 901 receiver and the "Tape In" connections on the receiver. Follow the guidelines in Step 2 for R and L connections.

4

Plug the 901 equalizer into a 120-volt electrical outlet. Your 901 equalizer is now installed.

Read more: How to Install a Bose 901 Equalizer ' eHow.com http://www.ehow.com/how_4813156_install-bose-equalizer.html#ixzz19vfsJTQu

Hook the signal source to the equalizer input and the equalizer output signal to one of the signal inputs on your amp. This is one way, but this way only one signal source will go through the equalizer (unless it has several signal inputs and a source selector switch).

The other way (inserting the equalizer between the preamp and the main amp) is:

If your amp has RCA connectors on the back named "preamp out" (or similar) and "power amp in" (or similar) that have slugs connecting them, remove the slugs, hook the "preamp out" signals from the amplifier unit to the signal inputs on the equalizer and outputs from the equalizer to the "power amp in" inputs on the amplifier.

Basically, what you do is that you insert the equalizer between the preamplifier section and the power amp section of the integrated amplifier so that you can still select the signal source without having to switch any signal cables (however, i can't say if your amp has got this type of "slug" connection feature between the preamp and the power amp on the rear panel, so i'm not sure which way you'll have to hook it up).

Hope you can make it work the way you want.

regards

Triarcuate

Yes! When the Bose ~Steve901 first came out that was the amplifier of choice -like the McIntosh classic amps. The 901s have their own equalizer as that speaker system is a phased-array, 

Option 1: Adding a Separate Power Amplifier - Best Option

https://deercreekaudio.com/blogs-%26-updates/f/connecting-your-eq901-to-an-audio-video-receiver-avr

This option requires that you add a separate power amplifier.
1) Connect the pre-out main left and right to the EQ901 inputs 1 and 2, and the EQ901 outputs 1 and 2 to the power amplifier inputs left and right
2) Connect your 901 speaker to the power amplifier outputs
3) The equalized signal will now play through the front left and right speaker outputs in the stereo and home theater modes.