User manual

Page 5
 Balanced OUTPUT at LINE LEVEL with a GROUND LIFT switch for Pin 1
 ¼” HEADPHONE OUTPUT with a VOLUME control for 32 to 600 Ohms.
 Pure Analog Circuit Design using thru-hole, low-noise components
 Rugged all-steel chassis
 Powered by a single industry standard 9-volt AC Adapter, but runs internally at 18 volts
for high headroom and lower noise
 Manufactured in California
HOOK-UP
Although the input impedance is sufficiently high to allow you to plug your guitar directly
into the GCS-3 without loss of fidelity, it is not recommended. The GCS-3 accepts
signal levels from pedal boards (guitar level) and preamp outputs (line level) or (with
the INPUT PAD switch “IN” to -30dB), power amp levels.
The GCS-3 functions like the GCS-2 in many ways, with added features of a switchable
-30dB PAD on the INPUT so that the GCS-3 can connect directly to power amplifiers,
and the GCS-3 includes a HEADPHONE output. Please note that the GCS-3 is NOT
A LOAD BOX, and the power amplifier must remain connected to the speakers or have
a proper impedance load connected to it in place of the speakers. The -30dB PAD
switch is located on the rear panel. Preamp, line level and pedal board level signals