For the money involved an excellent preamplifier for voice and middle frequencies in general, the sound can be tweaked , but the best results for all around mix can be found in the neutral setting. Remember to replace the inside tube with a higher quality one if you want the unit to show what is capable of. Very nice preamplifier for middle and higher frequencies, round sweet , tube sound.
Excellent for voice , guitars , synths whatever.. For Bass try a solid state or a transformer preamplifier. For all the rest for the money involved is a trully excellent unit