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Thanks for choose our series amplifier. The amplifier features a two-way crossover and
sub-sonic (low-cut) filter for each channel. Crossover frequencies are fixed at 150 Hz, allowing
subwoofers to be driven at extremely high sound pressure levels, and the filters cut at 40 Hz to
prevent low-end rumble. Using proven technology gained through years of amplifier design, this
unit takes advantage of rugged TO-3P output devices mounted on massive aluminum extrusions
and dissipates heat via an extremely quiet and effective two-speed fan. The amplifiers employ
mammoth toroidal power transformers and offer impressive specifications and features not found
on similarly priced competitive units. This amp is designed to drive a 2-Ohm load per channel,
thus achieving awesome performance levels into 4 Ohms in BRIDGE mode. The amplifiers are
ruggedly constructed, rack-mountable pieces of gear with superb patching capability, allowing
superior flexibility in application. Front panel features include calibrated, detented gain (dB)
controls and LED indicators for power, signal presence (SIG), clip and fault, as well as a rocker
mains POWER switch. The back panel contains an IEC connector for the mains power cord,
a mains circuit breaker with reset, and 2 critical cooling fan opening. This opening should have an
adequate supply of cool air and should never be blocked or restricted. Also on the back panel are
the input and output sections, including an input barrier strip for permanent installation. Each
channel inputs section includes a combo XLR/ 1/4"phone jack connector. THRU/LOW out and
HIGH out 1/4" jacks, and activation switches for the LOW CUT filter and crossover
(150Hz X OVER). Channel output sections feature dual shock-proof binding posts and four
conductor Speakon connectors. An additional four-conductor Speakon connector allows BRIDGE
mode output.
UNPACKING
Inspect the amplifier during unpacking. If any damage is found, notify your dealer immediately.
Be sure to save the carton and all packing materials. Should you ever need to ship the unit back
to Sixstar DJ, one of its service centers, or the dealer: use only the original factory packing.
INSTALLATION
The professional power amplifiers are design for durability in commercial installations and
provide the quality performance required in studio and home applications. They are two-rack-
space units of 16" (406mm) depth designed to mount in a standard 19" rack. Rear mounting
ears are provided for additional support. The minimum rack depth required from the mounting
surface is 17" (432mm) to allow adequate connector clearance.
BASIC SETUP
Rack mount the amplifier in the location where it is to be used, remembering to allow for
adequate access and cooling space. Make all the connections to the proper INPUT connectors
on the desired channel. Select the proper mode configuration (STEREO or BRIDGE). Connect
speakers to the proper OUTPUT connectors, reviewing carefully the impedance and phase
considerations. With the POWER switch OFF, connect the IEC cord (7) to the amplifier and then
to a suitable electrical outlet to allow proper current draw. With both channel gain (dB) controls
at their fully counterclockwise settings, turn the POWER switch to ON, and slowly raise the gain
controls to desired settings. Please carefully review this manual. It covers all this information in
greater detail.
SERIES PROFESSIONAL POWER AMPLIFIER