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Tape dubbing question

J

jetstream

Well-Known Member
Considering a (pre)amp with two tape loops and have the following question: if a recorder is connected to loop 1 and equalizer to loop 2, would it be possible to record the source signal from a cd AFFECTED by the equalizer, by engaging the dubbing function 2=>1? Example units with different implementation of the tape loops, so the question is about both:
Accuphase C 2000 (has monitor and copy selectors)
133408k3z14i7com8ha14c.jpg

and
Luxman 505-U (has rec out selector)
s_s_DSC00010.jpg
 
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cademan said:
Short answer, yes!
Click to expand...
While I can see that being possible on the Accuphase, can't understand how it is possible on the Luxman. The Lux has a rec out selector > if I select recorder 2 on it it will send the signal from recorder 2 (equalizer) to recorder 1 (recording device). How do I select what goes into recorder 2 i.e. how to send the signal from the cd to rec 2?
 
I don't think it would work on the Luxman. It would need tape dub capabilities (I think?).
That way you could choose your source to go to REC2, and choose a tape dub from 2-1.
Source (normal signal)--->REC2 (EQed signal)--->REC1(Success!?).

ON the Accuphase, I'm thinking you'd set the 'recorder' to SOURCE, 'copy' to 2>1, and then select the input source you want to record.

This stuff gets confusing after awhile!
 
js: If you'd like to know for sure, you'd best check the user or service manual (usually the block diagram should already tell, but sometimes one needs to check the schematic...), because the exact implementations differ. For example, on the Harman/Kardon hk825 it would work - whereas on the Marantz PM8000 it wouldn't, because on that the selected source even is disconnected from the output to the delivering tape-loop for either tape-copy direction.

Greetings from Munich!

Manfred / lini
 
Why not just come out of the EQ direct to the tape deck? /Source output to the amp/receiver input, record/line output to the EQ, line out to tape deck line in. Most receivers with A and B tape loops do have the circuitry to do dubbing, but you have to know what goes where.
 
tom3 said:
Why not just come out of the EQ direct to the tape deck?
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Because I'm trying to have a permanent setup that would allow me the fewest possible signal chaining. What you suggest is fine for recording scenario but when not recording I have to unhook the EQ from the tape deck and hook it back to the amp rec in.
 
lini said:
If you'd like to know for sure, you'd best check the user or service manual (usually the block diagram should already tell, but sometimes one needs to check the schematic...), because the exact implementations differ.
Click to expand...
For the Luxman I already did, but can't get the answer from post #3 above. It mentions tape dubbing (see https://www.manualslib.com/manual/1222508/Luxman-L-505u.html?page=13#manual) but not in the detail I need.
Here's the block diagram so if you or someone could read out the answer from it would be great: https://www.manualslib.com/manual/1222508/Luxman-L-505u.html?page=15#manual

For the Accuphase I can't find any manual, just brochures.
 
Maybe use the Accuphase as your main control unit having the dubbing control you want, connected to a set of speakers.

With a couple of Y adapters, you can tap into one of the tape loops REC OUT on the Accuphase and go to the Luxman's AUX input using its own set of speakers. This is what I have done but you at least need some extra speakers to do this.
 
With the Accuphase, you have REC source and a copy switch. My pioneer has the same set up for dubbing and I can do (I believe) what it is you are wanting to do or trying to do.

I see you don't own these pieces yet?
 
cademan said:
Maybe use the Accuphase as your main control unit having the dubbing control you want, connected to a set of speakers.

With a couple of Y adapters, you can tap into one of the tape loops REC OUT on the Accuphase and go to the Luxman's AUX input using its own set of speakers. This is what I have done but you at least need some extra speakers to do this.
Click to expand...
Thanks for the suggestion, but...First I don't own any of the amps, second y adapters is something out of question. All I'm trying is to find out if there is an amp of recent production (preferably of the mentioned brands) that is capable of letting me use a recorder and equalizer at a press of a button.
 
By looking at the Accuphase, I would say that it would do what you want. The Luxman might also do the same thing but it might be labeled differently, and/or connected differently.
 
Yes, the Accu might have it possible because rec out is selected by the input selector. But the Lux has separate rec out selector so it is not clear what happens with the rec 2 out when rec 2 is selected on the rec out selector.
 
js: On the Luxman it was to be expected anyway that it wouldn't work, considering the existing controls - and the block diagram confirms it. And what will happen with rec-2-out, when rec-2 is selected on the record-out selector, is that the controlling microprocessor will disconnect rec-2-out, 'cause otherwise rec-2-out and rec-2-in would be hooked together.

The question really is the exact implementation on the Accuphase: From the chosen approach and the existing controls it would seem very well possible, that it would work - but without further info material (or the chance to try it) one can't really be sure, that it actually does. Hence my two examples above (both service manuals should be available for download over on HFE): On both models the chosen signal routing approach and existing controls would be similar to those on the C-2000, but if you check the block diagram of the hk825, you can see why it would work on that one. Whereas in you check the block diagram of the PM8000, you can see why it wouldn't work on that one - and rather unnecessarily so at that, 'cause with a slightly different wiring of the record-out/tape-copy selector it would work...

So the question would be, whether the C-2000 does it like the hk825 - or rather like the PM8000, which unnecessarily disconnects the output to the delivering tape-loop from the selected source, as already mentioned above.


tom3: Well, the bonus of an approach like on the hk825 is that the equaliser will require no other extras than just an input and an output, because you can already control everything from the pre-amp(-section), having the full choice between listening & recording via EQ, listening via EQ & recording flat, listening flat & recording via EQ and listening & recording flat (at the same time each). Whereas if one would connect the recorder simply in series to the EQ in the same tape loop, listening via EQ and recording flat wouldn't be possible.


Greetings from Munich!

Manfred / lini
 
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