2. amps-preamps
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Using Y-adapter to duplicate preamplifier outputs

Is there any loss from using y-adapters to duplicate an output on an amplifier? Case in point; I want to duplicate my preamp output to feed a ss amplifier and a tube amplifier. Both will not be used simultaneously. I just don't want the hassle of having to remove interconnects each time I am going to use one amp or the other.
drmoles
kr4's avatar
kr4
3,707 posts
 
I would suggest you get the Y-connectors at Radio Shack and see if they work for you. If the input impedance of the SS amp (even when off) is much lower than that of the tube amp, it will shunt most of the signal and you will get little out of the latter.

If it works, then you can consider investing in higher quality connectors.

Kal
swampwalker's avatar
swampwalker
5,138 posts
 
Kal's advice is excellent.
eldartford
4,262 posts
 
Kr4...No Kal. The low impedance SS amp will draw more current from the preamp, but the voltage will be the same at both amp inputs. If you doubt this, make some measurements. The loading of the preamp will be the same regardleass of whether the power amps are on or off.

But Radio Shack Y-connectors do work fine.
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