elmostro
Active Member
i have a emotiva XPA gen 3 and that i'm want to use the with pioneer sx1980 preamp to drive a pair of 4ohms speakers, since the 1980 can only drive 8ohm loads i got the new emotiva amp mentioned above to take care of that. but while searching online i found this. i need advice thanks.
this is what i found.
(this is absolutely wrong most vintage amplifiers have inputs with a sensitivity of 150-200 mv try to connect a modern source on them like a CD player or a DAC and you will partially kill a very useful area of dynamics
Add to the above that some of them have gain ...or plenty of gain on the preamp ( expected you need to ""boost ""200 mv to something like 1 volt )
The result with a modern source is that everything on the preamp is going to be too much ...Volume knob is going to kick in someway too fast loudness function is going to be almost useless since added tone will be too much ...
Another complication will be that some of these amplifiers base the tone controls sitting on the feedback node of the main amplifier while the actual tone control has no active parts ...that will be also risky to ""brake"" from pre and main amp.
Finally and eventhough some of these circuits are very musical and provide very sweet but unreal sonics most of the designs especially with today's standards have horrible crosstalk and Chanel separation issues ...That it shelf is serious draw back even more serious than the gain issues
So its a NO big time !!!
what you guys think. what should i do?
this is what i found.
(this is absolutely wrong most vintage amplifiers have inputs with a sensitivity of 150-200 mv try to connect a modern source on them like a CD player or a DAC and you will partially kill a very useful area of dynamics
Add to the above that some of them have gain ...or plenty of gain on the preamp ( expected you need to ""boost ""200 mv to something like 1 volt )
The result with a modern source is that everything on the preamp is going to be too much ...Volume knob is going to kick in someway too fast loudness function is going to be almost useless since added tone will be too much ...
Another complication will be that some of these amplifiers base the tone controls sitting on the feedback node of the main amplifier while the actual tone control has no active parts ...that will be also risky to ""brake"" from pre and main amp.
Finally and eventhough some of these circuits are very musical and provide very sweet but unreal sonics most of the designs especially with today's standards have horrible crosstalk and Chanel separation issues ...That it shelf is serious draw back even more serious than the gain issues
So its a NO big time !!!
what you guys think. what should i do?