The Roll Music Vacbax RMSB5T 500-Series Tube
Equalizer is a buttery smooth Baxandall style tone control in a fully
compliant all-tube 500-series module. The
Roll Music Vacbax amplifier provides makeup gain after a buttery smooth
passive 2-band tone control with a selectable high band (16kHz and
8kHz), fixed low band (150Hz), and switchable high pass filter (100Hz).
The Vacbax is powered by a proprietary high-voltage internal voltage
booster, which produces more than 200V internally from the +/-16V and
+48V rails. The Roll Music Vacbax is available in a standard 500-series
powered enclosure.