If your system calls for multiple outputs from the Nº38 (as might be the case for “passive” biamplification, for example), you may use balanced Y-adaptors to split each balanced output into two balanced outputs. The low output impedance (6Ω ) of the Nº38 can easily drive multiple power amplifiers.
2SINGLE-ENDED MAIN OUTPUTS
Single-ended (“unbalanced”) outputs are provided for compatibility with a wide range of associated components, including power amplifiers and electronic crossovers.
If you use the single-ended outputs, connect them to the corresponding inputs of your power amplifier (or other device). Note that special features of the Nº38 enable it to be used optimally with a surround sound processor as one of its inputs. We do not recommend having a surround sound processor follow the Nº38 in the signal path. (For more information, see “Using Surround Sound Processors.”)
3BALANCED INPUTS 1 AND 2
Accepts right-channel and left-channel balanced signals from source equipment with balanced outputs.
The pin assignments of these XLR-type female input connectors are:
| PUSH | Pin 1: Signal ground |
| 2 | 1 | Pin 2: Signal + (non-inverting) |
| Pin 3: Signal – (inverting) |
| 3 | |
Connector ground lug: chassis ground
Refer to the operating manuals of your balanced-output line-level sources to verify that the pin assignments of their output connectors correspond to the Nº38. If not, wire the cables so that the appropriate output pin connects to the equivalent input pin.
Note: If you won’t be using the Nº38’s balanced inputs and need more single-ended inputs, it’s possible to fabricate a cable to connect line-level sources with single-ended output to these balanced inputs:
1 2
22-gauge
3 buss wire
Male RCA | Male XLR |
(connect to source) | (connect to Nº38) |
4RECORD OUTPUTS
Connect these outputs to the right-channel and left-channel tape inputs of your recorder.
These outputs are unaffected by the OUTPUT LEVEL control on the front panel of the Nº38, or by the source chosen to be Monitored.
