Can you tell me why I cannot measure output power of a Balanced output power amp(Audio research 610T) with a crown Oc150 out control???
The ARC output is balanced, but the Crown only has a single ended input.
You could make a balanced to single ended converter with an op amp, which goes in between them.
The converter gain would have to be less than unity to accommodate the full output swing of the ARC.
Into 4 ohms, the peak ARC output voltage at 600W would be about 70V peak, so the voltage gain of the converter
should be around 1/7 or -17dB. Connect that to the ARC output, and then connect the converter output to the Crown input.
You could make a balanced to single ended converter with an op amp, which goes in between them.
The converter gain would have to be less than unity to accommodate the full output swing of the ARC.
Into 4 ohms, the peak ARC output voltage at 600W would be about 70V peak, so the voltage gain of the converter
should be around 1/7 or -17dB. Connect that to the ARC output, and then connect the converter output to the Crown input.
Not unless you buy lab equipment (high voltage differential voltage probe), which would be expensive
and not optimized to your application. Maybe a friend could build one (actually two) for you.
However, without using any converter at all, you could just connect the Crown hot input to the "0 ohm" tap of the ARC.
The Crown input ground would go the the ARC "4 ohm" tap, which is grounded inside the ARC.
Then the signal voltage would be less than the actual unless your speakers are 4 ohms as well,
but this could be taken into account in the Crown settings. Maybe this approach is best for you.
and not optimized to your application. Maybe a friend could build one (actually two) for you.
However, without using any converter at all, you could just connect the Crown hot input to the "0 ohm" tap of the ARC.
The Crown input ground would go the the ARC "4 ohm" tap, which is grounded inside the ARC.
Then the signal voltage would be less than the actual unless your speakers are 4 ohms as well,
but this could be taken into account in the Crown settings. Maybe this approach is best for you.
Sorry, that amp model is about their only model without a secondary ground available.
You will need the converter circuit.
You will need the converter circuit.
