Dear J.,
You are probably already aware that the input impedance of the Spectral amps is VERY low. This means that if you were to go to a tube preamp, you would have to be careful to choose one that has a low output impedance; absolutely below 100 ohms -- not an easy thing to find in tube preamps -- you might check into ARC. Also, you'd need to keep the interconnect from pre to amps below 2 meters in length.
BTW -- you may want to check with Spectral to see if your warranty on the amps would still be valid if you went in that direction.
Best of luck,
Joe
You are probably already aware that the input impedance of the Spectral amps is VERY low. This means that if you were to go to a tube preamp, you would have to be careful to choose one that has a low output impedance; absolutely below 100 ohms -- not an easy thing to find in tube preamps -- you might check into ARC. Also, you'd need to keep the interconnect from pre to amps below 2 meters in length.
BTW -- you may want to check with Spectral to see if your warranty on the amps would still be valid if you went in that direction.
Best of luck,
Joe