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In Reply to: Can I do this: DVD --> Receiver -->Pre Amp --> Power Amp and still get surround sound? posted by Tutul on June 15, 2001 at 11:35:04:
Does the Musical Fidelity preamp have a "processor loop", sometimes called a bypass input?If it does, plug the receievers preamp output into this input.
If the preamp doesn't this can still be done, you just have to know the simple rule. ALWAYS use the same volume level on whatever input the receiver is plugged into.
This should work nicely for you.
Regards,
Follow Ups:
Kotches,Thanks for your reply. The A3CR does not have a processor loop that I could detect. I have attached a link to the Webpage with two pictures of the preamp. You can click on the lower picture to see an enlarged picture of the connections it has. It does have a tape loop. You are not talking about that, are you?
Assuming that it does not have the processor loop what do you suggest? I did not understand your statement: "ALWAYS use the same volume level on whatever input the receiver is plugged into. " Are you suggesting that I put the receiver at a certain setting and then control the volume with the pre-amp? Please explain.
I appreciate your help.
Regards
What kotches was indicating was to do this:DTR-6 Receiver L&R preamp outputs -> A3CR preamp -> power amp
Your DVD player would get connected to the receiver. The L&R preamp outputs from the DTR-6 gets connected to an available input (such as the AUX) on the A3CR preamp. The A3CR gets connected to the external power amp. When you want to listen to a 2 channel source, use the A3CR and leave the DTR-6 off. When you want to do HT turn on the DTR-6 and select the AUX input on the A3CR. If the A3CR does not have a process loop then you will have to pick a fixed volume position on the A3CR for calibrartion and usage during HT. The volume would still be controlled by the DTR-6 for HT.
Michael,Thanks for your reply. Actually, I was planning to E-mail you directly last night until I saw that you do not accept unsolicited E-mail.
I understand exactly what you are saying and what Kotches meant in his post. However, my question is, would not connecting the pre-out of the receiver to the Aux in of the A3CR preamp mean boosting the signal twice(once by the receiver's preamp stage and again by the A3CR pre)? The pre-out on the receiver has an output level of 1 V (Impedance 470 ohms), whereas the Input sensitivity of the A3CR pre-amp is around 200 mV (Impedance 50 kohms). If the only implication of this approach is that you have to reduce the volume level to compensate for the double boosting then it is not a problem at all.
The preamp dealer suggested connecting the receiver's tape out connections to the preamp's Aux in connection. This seems fine because the tape-out has an output voltage of 200 mV, equivalent to the preamp's output level of 200 mV. However, one concern I have with this tape-out approach is that all the signal from the receiver may be channeled through the tape-out connection and that I may not get the surround effects.
I appreciate the posts you made. At least I know that I can use the DTR-6 with my stereo system. For a few days I was afraid that I would have to sell the unit and buy a better one that has an amp-in input (such as Onkyo Integra DTR-7 or better). I would really appreciate a clarification of this pre-out versus tape-out issue.
Thanks.
No. There's no way to trim the volume controls to calibrate via the tape loop output.Regards,
NT
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