Copland DRC205 digital room correction

Hi,

I bought mine from Dave Tyree at Heirloom Audio in Denver. You can reach him at:

303-333-1504
tyreeworld@comcast.net

Because of noise/distortion concerns, Copland does not recommend placement between the amplifier and preamplifier. You can use the tape loop or insert it between a source and input (clumsy, I know). I am using the latter configuration until I find a suitable integrated amplifier having a tape loop.

I read this in the TAS review under technical : Stereo RCA input, 1 V nom. Stereo RCA output, 1 V nom. "

If its to go between pre/power amp it needs to be better than that. Anyone have more detailed specs including input and output impedance. I would need to put it between CDP and passive linestage as I passivly bi-amp from the output of the passive linestage.

ET

This is one of the reasons Copland does not want the unit connected between the amplifier and preamplifier. It is equivalent to a line level device (such as a CD player) and does not have the voltage swing of an active preamplifier.

The input/output voltage of 1 volt nominal indicates unity gain. Input/output impedance is not given, although it would not be difficult to determine. Typical values are 47 K ohm or more at the input and 1 K ohm or less at the output. My manual states maximum output as being 2.4 volts.

Unless your passive preamplifier uses an autoformer, it does not have voltage gain, meaning that whatever voltage is produced by your line source must be sufficient to drive the power amplifier. Typical line level sources, such as CD players, have outputs that fall between 1 and 2 volts.

Is it possible that your power amplifier is unusually sensitive? If so, you might be able to insert the DRC between your passive preamplifier and amplifier (assuming suitable impedances). Hope this helps!

Thanks for the reply. I can't put it between the passive and amp because I also passivly bi-amp(using the bi-wireable speakers x-ver) and have two amps. I could put it between CDP(my only source these days) and passive. My CDP has a 2.4V output at 50 ohms and my amps are both 100K input impedance and need 1.5 volts for full output. I'd have top find a dealer with in home demo or a good return policy.

ET

I just ordered one today from my local dealer. The owner of the store claimed it worked great and he purchased one for himself. His shop specializes in tubed gear and he stated the DRC205 was very transparent and once accustomed to having it in the system you would not want to go without. I also noted on the divertech website the price has already increased to 2995.00. I'll report my impressions when I receive the unit.