Your amps input impedance needs to be a minimum of ten times what the output impedance of your preamp is if you don't want to lose signal quality. More is better but it also depends on the preamp. On my Audio Research the output impedance is 600 ohms balanced yet ARC recommends a minimum of 20k.
PreAmp Math
I'm looking for an inexpensive preamp to run with my Aragon 4004 mark II amp. I've run my cp players direct to this amp for the past 4 years and just want to try a different arrangement.
The Aragon's output is a relatively low 22K ohms. One active preamp I was looking at suggested a minimum of 50k ohms input. To my ears I've got good sound from using my cd players as preamps and I can't believe this active unit would suggest such a high value.
How important is it that mathematically your preamp matches your amp?
Thanks - Jack
The Aragon's output is a relatively low 22K ohms. One active preamp I was looking at suggested a minimum of 50k ohms input. To my ears I've got good sound from using my cd players as preamps and I can't believe this active unit would suggest such a high value.
How important is it that mathematically your preamp matches your amp?
Thanks - Jack