Georgelofi;
Amp 10kohm, this could be the problem if your preamp is capacitor coupled on it’s output. As if the preamp’s output cap (if it has one), the size of it could have been calculated for a more normal (industry standard) >47kohm input impedance power amp.
Which the size of the cap may have been done so it’s say -3db at 10hz with a 47kohm poweramp. Which is fine.
But if that amp is 10kohm input then the -3db point will be 4.7 x higher at 47hz easily heard and so will sound like it has a bass roll off.
To test this, you can find out if the preamp is capacitor coupled by talking to the designer, or a quick test is to get another amp that you know is >47kohm input impedance and see if it still has a bass roll off.
So, I purchased a amp or preamp that is a mismatch? And won't sound good?? Wtf, I'm always fuc**ng something up.
Tried for a stellar system, and always something wrong when I make a purchase, Always!!!! Damn.
what is recommended? Sell preamp?
Amp 10kohm, this could be the problem if your preamp is capacitor coupled on it’s output. As if the preamp’s output cap (if it has one), the size of it could have been calculated for a more normal (industry standard) >47kohm input impedance power amp.
Which the size of the cap may have been done so it’s say -3db at 10hz with a 47kohm poweramp. Which is fine.
But if that amp is 10kohm input then the -3db point will be 4.7 x higher at 47hz easily heard and so will sound like it has a bass roll off.
To test this, you can find out if the preamp is capacitor coupled by talking to the designer, or a quick test is to get another amp that you know is >47kohm input impedance and see if it still has a bass roll off.
So, I purchased a amp or preamp that is a mismatch? And won't sound good?? Wtf, I'm always fuc**ng something up.
Tried for a stellar system, and always something wrong when I make a purchase, Always!!!! Damn.
what is recommended? Sell preamp?