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I don't know where to connect the main in & pre amp jacks??? to the EQ???

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Not sure I understand your question, but I will try.
Your CD players, tape decks, etc., connect to the INPUTS on the preamp.

The LINE OUT on the PRE AMP connects to the LINE IN on the POWER AMP.
The pre-amp does some amplification and then it passes the signal along to the power amp, which will do the heavy lifting - driving the speakers.
The connection is usually through a shielded RCA plug cable. THere will be 2 cables from the Pre amp to the power amp - one for the left channel and one for the right channel.
The OUTPUT Of the power amp will connect to the speakers using large, stranded wire cables, sometimes with "banana" plugs that simply plug into the terminals on the power amp and the speaker.
Let me know if this gets your started.

Posted on Oct 28, 2009

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I recently bought the yamaha rx-v567 and I own a yamaha EQ-70. How do I configure and hook up the EQ to the receiver?


The EQ is connected via one of the Tape loops on the amp (rec out from EQ to play in on amp,rec out on amp to play in on EQ). You then switch "Tape Monitor" on to hear the sound with the EQ settings applied. You can also connect it across Pre out and Main in should you have such sockets. I'm pretty sure it will only affect the main two front channels and not the surround channels.

Dec 19, 2010 | Yamaha EQ-70 Home Equalizer

1 Answer

I need advice on how to connect my very old BOSE 901 (with active eq) to this device: Martin Roland MA 3000K I see pre-out and pre-in but cannot locate main-in. Please help here is the back of its image:...


As you probably know, the Bose 901 Active EQ is there to modify the frequency spectrum fed to the 901's so they will produce a flat response. Without it, they sound acceptable in the midrange but lacking in bass. Since they have no woofers or tweeters, the modification is drastic and should never be applied to non-Bose-901 speakers or they could be damaged.

This setup should work for mixing and playing but I'm not sure if recordings directly from the unit's REC Out or Line Out would have the Active EQ effect on them. You'll need to perform a few tests to see how it all works for playback AND recording.

Remove the jumpers for Pre In >> Out

Insert the Active EQ in their place by running:

1. RCA cables from Pre Out to the Active EQ In (From Aux, Tape Out)
2. RCA cables from the Active EQ Out (To Amp, Tape In)

Use ONLY 901's on this amp with the EQ.

The Bose Active EQ has its own Tape Rec/Monitor loop to replace the one it normally occupies in a typical receiver application, so if you wish to record your mix you should use those connectors for your tape deck and there will be no problems with the Active EQ effect being recorded. The Monitor Tape/Source switch on the EQ functions just like a typical Tape Monitor. For playback of the recording, switch it to Tape.

The manual, available at http://lib.store.yahoo.net/lib/acekaraoke/MA3000K.pdf
doesn't get into any detail on the innards of the mixer.

In a typical integrated amp or receiver, the jumpers removed are between the Preamp Output and the Main Amp input, but BEFORE the amp's volume and tone controls, so manipulating them would not affect a recording. You should experiment with it by making recordings through both and adjusting speaker volume to see if it changes.

I would be curious to know what the functional difference is between the designated LINE Out, REC Out and PRE Out jacks in that regard. Normally, Line Out and REC Out will not vary with amp volume, but I expect in this mixer it does, or you wouldn't be able to control the volume from it. Experiment.

Of course, you probably want the mixed effects to be recordable, so I assume they'll appear at all outputs. Play back the test recording (at an initial low level, just in case) and see if you can detect an exaggerated low end (due to the 901 bass boost being applied in recording AND playback through the 901's. If the recording volume doesn't vary with speaker volume and the playback sounds as flat as the recording you're good to go.

If there is are volume variations or an additive effect, you may have to draw the REC Out to the deck's input and run the deck's output to the Tape In on the 901 Active EQ, monitoring only on deck playback.

Dec 02, 2009 | Bose 901 VI Main / Stereo Speaker

1 Answer

I would like to hook-up amp to graphic equalizer i would like picture if possible.


An EQ (equalizer) is generally connected between the low level output of a device (phono, CD, DVD, etc.,) and the amplifier's input. If you choose to place the EQ at this point, only the device connected will be equalized. All the other sources will be unaltered.

A more complete way is as follows:

Some amplifiers have a jacks labeled Left & Right "PRE OUT" and Left & Right "AMP IN" with a heavy gauge wire or strap that connects the left AMP IN & left PRE OUT together; and the right AMP IN and right PRE OUT together. Removal of the wire or strap will cause the amp to fall silent, as the low level signal no longer has a path from the PRE OUT to the AMP IN jacks. If you were to insert the EQ here, the path would be restored - but allowing you to boost or cut the level of certain frequencies BEFORE they are amplified. This is accomplished by connecting PRE OUT to EQ IN and EQ OUT to AMP IN for both the left and right channels.

As I mentioned, only some amps have these PRE OUT and AMP IN jacks - many however do not. In this case, you may be able to use the TAPE MON jacks. The TAPE MON is the Tape Monitor and appears on most "half-way decent" receivers. These jacks were provided to enable listening to a tape in nearly "real time" as it was being recorded on higher end "3 head" tape recorders. If you don't have a "3 head" tape deck (most do not), you can use these jacks the same as the PRE OUT and AMP IN jacks above. This is accomplished by connecting the TAPE OUT to EQ IN and the EQ OUT to the TAPE IN for both the left and right jacks. You would then select the source of the music - be it CD, Phono, etc. and with the EQ powered, pressing the TAPE MON button on the receiver, you could hear the difference between the EQ in the circuit and the EQ out of the circuit.

The key in the examples above is that there is always an input connected to an output. Don't connect inputs to inputs and outputs to outputs. Take your time and work one cable at a time - one end to an input and the other to the corresponding output.

Some situations may arise if using Dolby Digital, THX, etc. type input signals. Sometimes it is not possible to equalize them. If you have sources (DVD, Satellite Receivers, etc.) that have an optical or coaxial connection, those will be the ones that may have undesired affects. The familiar RCA type jacks for left and right signals should work perfectly.

I'll see if I can find a link with a picture...

Sep 29, 2009 | Audio Players & Recorders

1 Answer

Can I hookup a Bose 901 EQ to my receiver and amp?


Your instincts are correct. In fact, the only way the 901's can live in an A/V system is with dedicated amplification.

Put that old amp back to work.

This is exactly how mine are connected.

For connection I would run a pair of RCA cables from the Front L&R Audio Line OUT to the Active EQ's Line IN; then the EQ's Line OUT to a separate amp's Line IN. Attach the 901's to the new amp, run through the receiver's setup procedures for volume, etc and you're done.

Aug 19, 2009 | Bose 901 VI Main / Stereo Speaker

4 Answers

Bose 901's with Onkyo A9755B


Did you buy the 901's new along with the eq? If you did then I wouldn't suspect it to be the eq. If you bought it used, it sounds like the eq. I have had two of them go bad. Are you cutting the bass up on the Onkyo? Do you have the speakers placed correctly, like 18" from the wall? These speakers don't have a lot of bass unless they are placed correctly against a wall. They really sound best in a corner. You should get a difference when you move the opts on the eq though. Hope this helps some

Jul 13, 2009 | Bose 901 VI Main / Stereo Speaker

1 Answer

Need help connecting my eq to my system.


You will want to connect all of your devices to the pre-amp or receiver, then connect the outputs of your pre-amp/receiver to the inputs of the EQ. Then connect the outputs of the EQ to the inputs on the amplifier or receiver. If you give me some model numbers, I would be able to tell you exactly which cables go where.

Mar 31, 2009 | Audio Players & Recorders

1 Answer

Como conectar un ecualizador Technics SH-E51 a un amplificador Kenwood KA300


How do I connect my equalizer to my receiver?
There are two methods of connecting an equalizer, by either using the tape monitor or the main pre-in & output jacks. To connect through the Tape loop, connect the EQ L&R outputs to the Tape-in (play) jacks of the receiver, then take the EQ L&R inputs to the Tape-Out (REC) of the receiver. On the front of the receiver you will need to select the Tape Monitor to access the equalizer.To connect through main pre-out/ pre-in jacks, connect the EQ L&R outputs to the receiver main-in inputs (pre-in), then connect the EQ L&R inputs to the main out (pre-out)

Oct 05, 2008 | Audio Players & Recorders

2 Answers

Re: Peavey KB100 75 watt keyboard amplifier. Dear Sir, After having plugged into the 'PRE EQ PATCH' the main 3 inputs/channels are no longer working. I looked in the operating guide and...


The pre-eq patch connector is a 3 -wire connector designed as both an input and output in one connector. With a plug in there that only utilizes the output (send), you are not sending any signal to the amp section. That appears as no output. Take out the cable and the amp should be restored to original function. What you need to use that function is called an "insert" cable. This has a stereo 1/4" plug at the end for the "pre eq patch" side and 2 standard 1/4" plugs at the other end. One is for input into an effects box and the other is for the output from that efects box.

Hope this helps,
Dan

Jul 29, 2008 | Audio Players & Recorders

1 Answer

Equalizer connections


Usually you hook your equalizer between the pre out and main in RCA jacks and then open the connection between the pre and main with a switch. If your unit doesn't have pre out/ main in jacks then I have seen it done by putting your equalizer between the tape in and tape out jacks and then select that tape function on your front panel. The tape out goes to eq. in and the eq. out goes to tape in. Good luck.

Jul 25, 2008 | Sony STR-DE485 Receiver

1 Answer

How to connect eq to audio amp


To EQ all audio sources you'll need to have a receiver/amp with either a tape monitor loop or a pre amp-in/main-out loop. Look for a button on the front labelled 'Tape Mon' or ins and outs on the back labelled pre amp-out/main-in. If you have these you can connect the outs from the amp to the ins on your EQ and then EQ outs go back into the amps ins. If you have a tape deck as well, the EQ's 'tape mon' jacks replace the ones it takes up on the amp, so just plug your tape deck in here.

Just remember that whether you have a tape deck or not, if you hang an EQ off the 'tape mon' loop you'll have to engage the 'tape mon' button/switch for playback with EQ.

If your amp doesn't have these loops you can still use EQ but you may be restriced to one audio component source. So say you wanted to EQ the playback from your CD player, you'd just connect the CD players output into the EQs input, then connect the EQ's output into the amplifiers input (for CD player). Then everything you play through the CD player will be EQ'd.

Jan 01, 2008 | Audio Players & Recorders

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