SE vs Balanced volume

Read PS: above.

Cheers George

Read PS: above.

The amp in question is the solid state amp, not the tube amp.

Regards,
-- Al
 

Ok then it's now solid state, can the OP still post the make and model of it.? So we can put this to bed.

Cheers George

And also Al while were waiting for the OP's answer, I use two s/s amps with fully balance discrete input stage. This amp has rca inputs and xlr inputs with a switch between the two, no opamps involved. When switched to rca it just put’s pin 3 of the xlr to ground.

Cheers George

I use two s/s amps with fully balance discrete input stage. This amp has rca inputs and xlr inputs with a switch between the two, no opamps involved. When switched to rca it just put’s pin 3 of the xlr to ground.

Yes, that approach is used fairly widely, of course. And since the difference in voltage between the two input lines would be twice as much when XLR pins 2 and 3 are provided with a balanced pair of signals, compared to when pin 3 is grounded, there will be a 6 db difference in the gain of the amp between the two conditions. But in the case of the OP’s solid state amp there is no difference in gain when the XLR input is used (and provided with a balanced pair of signals) compared to when the RCA input is used, which was the reason for his question that started the thread.

Regards,
-- Al