I just asked EAD about a 3V input to their unit and got the following reply. Any thoughts?
1) The maximum recommended input on the 8-channel Analog Direct input of the TheaterMaster 8800 is 2.0 Vrms, although hard clipping does not occur until 2.6 Vrms. This is normal behavior for standard line-level signals. I would recommend that you build or have someone build you some L-pad attenuators for all analog channels that exceed 2.0 Vrms. For best performance it is good to keep well below the clipping point.
If you wish to construct L-pads, please remember that the input impedance of the various Analog Direct channels is as follows: LF, RF 10K; all other channels 5 K. You can take advantage of this to simplify your L-pads to a single resistor:
For the LF and RF, place 5K in series with the signal.
For the CT, LS, RS, SUB, LB, RB, place 2.5K in series.
Best type of resistor is nichrome, but metal film should be OK too.
These values will attenuate 3 Vrms to 2 Vrms. If your CD player output is higher, you'll need to calculate some higher values.
1) The maximum recommended input on the 8-channel Analog Direct input of the TheaterMaster 8800 is 2.0 Vrms, although hard clipping does not occur until 2.6 Vrms. This is normal behavior for standard line-level signals. I would recommend that you build or have someone build you some L-pad attenuators for all analog channels that exceed 2.0 Vrms. For best performance it is good to keep well below the clipping point.
If you wish to construct L-pads, please remember that the input impedance of the various Analog Direct channels is as follows: LF, RF 10K; all other channels 5 K. You can take advantage of this to simplify your L-pads to a single resistor:
For the LF and RF, place 5K in series with the signal.
For the CT, LS, RS, SUB, LB, RB, place 2.5K in series.
Best type of resistor is nichrome, but metal film should be OK too.
These values will attenuate 3 Vrms to 2 Vrms. If your CD player output is higher, you'll need to calculate some higher values.