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Old 18th November 2013, 09:17 PM   #1
JoeDJ is online now JoeDJ  United States
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Default Does it matter how/where an EQ is connected?

Using an integrated amp with external pre/main jumpers, does it make any difference (sonically) where you "place" a graphic EQ , either between pre and main or, in a tape monitor circuit?

Yes, I realize that in a tape monitor circuit, it can be easily be switched in and out with the amp but, the EQ can also be bypassed by a switch on the EQ.

Is there anything other that that I should be aware of ?

Last edited by JoeDJ; 19th November 2013 at 12:44 AM.
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Old 19th November 2013, 01:39 AM   #2
Enzo is offline Enzo  United States
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I used to have a little consumer graphic EQ, and it instructed me to use the tape loop. The unit had its own tape loop on the EQ, so I didn;t lose that function.

But the whole point of an EQ is to fine tune the freq response of the audio to compensate for the variations in the speakers and listening environment. Between preamp and power amp is the natural place for it. SO if you have the pre/main jumpers on your system, then why not use them, and leave the tape monitor for its intended purpose?
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Old 19th November 2013, 01:54 AM   #3
JoeDJ is online now JoeDJ  United States
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Yeah, actually I was leaning toward between pre & main..

It will be for a NAD c350 that I'm getting....... using my vintage Teac EQ.

Last edited by JoeDJ; 19th November 2013 at 02:04 AM.
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Old 19th November 2013, 01:58 AM   #4
sreten is offline sreten  United Kingdom
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Hi,

Yes it does depending on details. Should be best pre to power amplifiier.
However in a tape loop easy to ascertain sonic degradation set to flat.

rgds, sreten.
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Last edited by sreten; 19th November 2013 at 02:04 AM.
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Old 19th November 2013, 02:09 AM   #5
JoeDJ is online now JoeDJ  United States
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OK, sreten.
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Old 19th November 2013, 03:03 AM   #6
JoeDJ is online now JoeDJ  United States
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After re-reading your post.......

The EQ has a switch to bypass the EQ for "flat" comparisons, etc.
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Old 22nd November 2013, 04:42 PM   #7
JoeDJ is online now JoeDJ  United States
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Actually, I may just keep is as I presently have it which is.....

All inputs are connected to a mechanical source switch with no crosstalk .
The source switch output is connected to the EQ's input.
The EQ output is fed into the amp's pre input. .

This way I can listen to my headphone amp connected to the EQ's tape out by just hitting the EQ out" (flat/bypass ) switch (with the EQ turned off) to feed a flat signal to the headphone amp with the rest of the system (Amp, sub, and EQ) turned off..

Last edited by JoeDJ; 22nd November 2013 at 04:58 PM.
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Old 22nd November 2013, 05:45 PM   #8
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Quote:
Originally Posted by JoeDJ View Post
Using an integrated amp with external pre/main jumpers, does it make any difference (sonically) where you "place" a graphic EQ , either between pre and main or, in a tape monitor circuit?

Yes, I realize that in a tape monitor circuit, it can be easily be switched in and out with the amp but, the EQ can also be bypassed by a switch on the EQ.

Is there anything other that that I should be aware of ?
If your system has very low distortion, witch I presume it has, than it makes little difference. An EQ is a linear distortion device and linear distortions can be added just like numbers. So a+b=c and b+a=c to.
But if your system has higher distortions, then the outcome is very different as you can't add non linear distortions and linear distortions. So a+b=c and b+a=d
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Old 22nd November 2013, 07:05 PM   #9
a.wayne is offline a.wayne  United States
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Eq's are best left in the studio , no need to eq the eq ...
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Old 22nd November 2013, 07:24 PM   #10
cbdb is offline cbdb  Canada
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Between pre and amp may have more noise. If the eq is before the volume the volume control turns the eq noise down with the signal if it's after, (after the pre) the eq noise will be maximum no matter where your volume is set. The tape loop is the same as pre volume.
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