Duncan KTG-1 Tube Owner's Manual

KTG-1 Tube

Guitar Preamp

Owners Manual

Caution

To prevent electrical shock, do not operate this unit in wet or moist areas.
There are no user - serviceable parts inside. (see, "Maintenance" and "Tube Chart" sections for

user maintenance procedures.)

Specifications

1 rack space, 2 channel, all vacuum tube
preamplifier
Input impedance - 1 meg - All controls up Ch. I Hum and noise - -87.5 dB

Output impedance -5K (note: 5K output
impedance is achieved using a vacuum tube in
cathode follower configuration, there are no
solid state devices used in the signal path)

Max output before clip -25V RMS Made in America
Boost #1 - 6.0 dB @ I Khz
Boost #2 - 8.0 dB @ 1Khz
Crunch - 8.0 dB @ 6Khz

Noise (referred to full output, 20 - 20Khz)

Ch.2 (high gain), Hum and noise - -70dB

- Master volumes down. Output control up.
Output stage (#5 and #6 only)
Hum and noise- -11OdB
60Hz- - 134 dB
120Hz- - 131 dB

King Tone Generator

Congratulations on your purchase of the Seymour Duncan Research KTG-1™ Tube Guitar
Preamp. "KTG" stands for "King Tone Generator” ™ Each product in the KTG Series has been
designed and built to generate great guitar sound, now and for years to come. Read this manual
carefully to familiarize yourself with the features and operation of the KTG-1. Meanwhile here are
some set - ups to try out.