Demeter HBP1 Vacuum Tube-FET Hybrid Bass Preamplifier
The new H-Series Bass Preamp by James Demeter uses the same all tube front end found in his classic VTBP-201 Bass pre-amplifier and combines it with the revolutionary H-Series circuitry found in his professional audio H-Series line. This pre-amp provides the best of both the tube and solid state world. It features high voltage (250V) tube front end (providing all of the pre-amp gain and passive tone controls), a two band solid state fully Parametric Equalizer that is tuned for, bass, a fully adjustable active effects loop with controls up front, a tuner output, a full balanced output with switchable mic or line level, both a balanced TRS line level output and an unbalanced line level output for amplifier connections and a mute switch. As with all Demeter equipment it is meticulously hand wired, using the finest components and assembled in the USA.
Specifications:
Input Impedance >1 megohm
Min. Load Impedance 600 ohms
Maximum Output +28DBV
Power Supply 250V Fully Regulated Tube +18 -18 Fully Regulated Transistor
12.6V Fully Regulated Filament
Signal to Noise Ratio -80dB
THD .5%
Frequency Response 10Hz to 40kHz
Tube 12ax7a
EQ Gain + or - 15 dB
Q or Width Continuously Variable Low 40Hz to 440Hz
Gain Adjustable to + 10dB Mid 440Hz to 4KHz
Max Output @600ohms +24dB Outputs 3 Pin Bal Mic/Line
Tube 1-12AX7a Selected
1 1/4 TRS Bal Line
1 1/4 Unbal Line Chassis
1 1/4 Tuner
Power 115V/230V Switchable
Chassis Single Space Rack
