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"Trumpet" Vacuum Tube MM Phonostage

$2699

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The Trumpet is a state-of-the-art MM phonostage that uses balanced feedback-free differential triode gain stages and passive equalization. This topology offers incredible linearity and low distortion combined with unrestricted dynamics and clarity, delivering a hugely open and clear sound. The massive power supply is fully choke regulated for clean, impulse-free current draw from the ac line. The Trumpet has earned a Stereophile class "A" recommendation and industry acclaim. For MC capability, just add either a Piccolo headamp or a StepUp transformer.

Features

Two chassis design, separates power supply from sensitive circuits
Fully balanced differential circuits
Class-A operation, all tube signal path, no feedback
Choke input dc power supplies
DC heaters
Passive, split equalization
Polarity and mute switches

Specifications

Gain:44dB
Input Impedance:47k ohms
Output Impedance:750 ohms
RIAA Response:+/-0.5dB from 20Hz to 20kHz
Bandwidth:5Hz to 250kHz
Distortion:0.03% @ 1kHz
Noise:75dB ref 5mV A-weighted
Overload:250mV @ 1kHz
Size:7" x 10" x 4" (each box)
Power:120Vac, 90W
Tube Compliment:12AX7 x 4, 12AU7 x 4

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Downloads

User Manual (488k pdf)
Photo of Amplifier Guts (92k jpg)
Photo of Power Supply Guts (103k jpg)
Schematic (50k pdf)



Copyright 2008, Hagerman Audio Labs is a subsidiary of Hagerman Technology LLC.