Preamp tube with two 12AX7 to integrate into the amps and preamps in the series mts.
Controls: Gain, Bass, Middle, Treble, Level
My preamp factory bore the inscription "deluxe".
Clean sounding. Very hot when it is pushed, creamy crunch goes across the spetre. Ultra hot in the bass. Good for solo singing fenderiens as well. Good blues and 60's rock and pop variety. Those who make experimental and who need to find their range cleans Bonnheure.
All notes that I could make are ridiculous because everything is a matter of taste. Some love it, others do not.