For Sale: Demeter HPB-1 Tube Preamp
Selling my HPB-1 preamp that I picked up here on TB in March 2016. Great preamp with a brand new 12AX7 tube installed. The previous owner had the preamp completely updated with new chips and power caps by Jim Demeter.
Works perfectly with great tube warmth; comes with the Jensen transformer for the DI. Some slight scratching on the top and bottom, but otherwise in pretty condition. Selling because I only use my Mike Pope MPP-2 when I need a preamp and this fabulous unit is just sitting in my studio unused.
Specs:
Input impedance: > 1megohm
Minimum load impedance: 600ohms
Maximum output: + 24dBV @ 600ohms + 28dB
Gain: Adjustable to + 10dB Mid 440Hz to 4KHz
EQ gain : + or - 15dB
Signal to noise ratio: - 80dB
THD : .5%
Frequency response : 10Hz to 40kHz
Tube: 1-12AX7a selected
Parametric EQ: Q or width continuously variable Low 40Hz to 440Hz Mid 440Hz to 4.4KHz
Inputs: 1/4" (passive and active) Outputs: 3-pin balanced mic/line, TT, XLR & 1/4"
Chassis: Single space rack / 10.5 inches deep / standard 18 inches wide
Operating voltage: 115V/230V AC switchable
Power supply: 250V fully regulated
Filament: 12.6V fully regulated
$475 shipped CONUS or $525 with the Gator 3-space rack included. Paypal OK / No trades. Please PM me any questions-thanks for looking!

Selling my HPB-1 preamp that I picked up here on TB in March 2016. Great preamp with a brand new 12AX7 tube installed. The previous owner had the preamp completely updated with new chips and power caps by Jim Demeter.
Works perfectly with great tube warmth; comes with the Jensen transformer for the DI. Some slight scratching on the top and bottom, but otherwise in pretty condition. Selling because I only use my Mike Pope MPP-2 when I need a preamp and this fabulous unit is just sitting in my studio unused.
Specs:
Input impedance: > 1megohm
Minimum load impedance: 600ohms
Maximum output: + 24dBV @ 600ohms + 28dB
Gain: Adjustable to + 10dB Mid 440Hz to 4KHz
EQ gain : + or - 15dB
Signal to noise ratio: - 80dB
THD : .5%
Frequency response : 10Hz to 40kHz
Tube: 1-12AX7a selected
Parametric EQ: Q or width continuously variable Low 40Hz to 440Hz Mid 440Hz to 4.4KHz
Inputs: 1/4" (passive and active) Outputs: 3-pin balanced mic/line, TT, XLR & 1/4"
Chassis: Single space rack / 10.5 inches deep / standard 18 inches wide
Operating voltage: 115V/230V AC switchable
Power supply: 250V fully regulated
Filament: 12.6V fully regulated
$475 shipped CONUS or $525 with the Gator 3-space rack included. Paypal OK / No trades. Please PM me any questions-thanks for looking!
