ETI Sound Systems, INC US-3000, US-4000, US-1800, US-1200 owner manual Amplifier Features

Models: US-3000 US-4000 US-1800 US-1200

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THE BEAUTY OF POWER

US SERIES AMPLIFIERS

AMPLIFIER FEATURES

The US-Series features four professional heavy-duty power amplifiers, covering a wide range of output power ratings. The models are US-1200, US-1800, US-3000 and US-4000. US-Series amplifiers are built on a rugged, heavy gauge steel chassis with a sturdy aluminum front panel. The amplifiers use advanced circuitry and a well-designed PCB layout to ensure quality sound and enhanced reliability. Large aluminum heatsinks and an oversized toroidal transformer, com- bined with comprehensive protection circuitry and variable speed fan(s) provide worry-free and reliable operation in the most demanding environments.

Compact size - up to 3200 watts in two rack spaces

Rugged heavy gauge steel enclosure with sturdy aluminum front panel for stability and increased longevity

High-current toroidal transformers for increased 2-ohm power output

21-position gain control knobs for consistent settings

Selectable STEREO, PARALLEL MONO and BRIDGED MONO modes for flexibility

Front panel LED display: POWER, BRIDGE and PARALLEL LEDs and SIGNAL, -20dB, -10dB, 0dB, CLIP and PROTECT LEDs for each channel

Protection: Short circuit, output current limiting, thermal, DC offset, turn on/off muting,

RF protection and circuit breaker

Clip limiters to reduce distortion without sacrificing peak performance (defeatable on US-3000/US-4000)

Sub-sonic filters to protect speakers and increase headroom (defeatable)

Balanced combo XLR and 1/4” TRS input connectors and link XLR output connectors

Both binding posts and Speakon™ output connectors

Low-noise cooling fans with continuous variable speed and highly efficient front-to-rear forced air cooling design

Replaceable open cell foam air filters

B-52 US Series Professional Power Amplifiers - Instruction Manual

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ETI Sound Systems, INC US-3000, US-4000, US-1800, US-1200 owner manual Amplifier Features