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Congratulations on purchasing the Samson Servo Quad Amplifier! Although designed for easy
operation, we suggest you first take some time to go through these pages so you can fully understand
how we’ve implemented a number of unique features.
The Servo Quad Amplifier is actually four discrete power amplifiers in a single chassis, optimized for use
in live performance, recording studios, and permanent installations. This manual covers two Servo Quad
Amplifier models, which differ primarily in terms of their power rating: the Servo 4060, which delivers
60 watts per channel into 4 ohms (or, in bridged mode, 120 watts into 8 ohms) and the Servo 4120,
which delivers 120 watts of power per channel into 4 ohms (or, in bridged mode, 240 watts into 8 ohms).
Both models operate over the full frequency spectrum (from 20 Hz to 50 kHz) and include dual bridging
switches, four sets of binding post (banana jack) outputs, and both electronically balanced 1/4" TRS and
unbalanced RCA-type input connectors
Suggested applications for the Servo Quad Amplifier include:
• Bi-amping applications - Because it is actually four amplifiers in one, the Samson Servo Quad
Amplifier is particularly well-suited (in conjunction with appropriate crossover circuitry) to power small
and medium size bi-amped speaker systems.
• Amplification for main or nearfield monitors in both professional and project studios - Its superb audio
specs and whisper-quiet performance (its convection cooling design means there is no fan) make the
Servo Quad Amplifier the perfect complement to any recording studio.
• Home Theatre applications - The sheer flexibility offered by the Servo Quad Amplifier (four discrete
amplifier sections plus two independent bridging switches) makes it the perfect addition to any home
theatre, in conjunction with any DVD player or other surround sound system. For example, use two
channels to drive your front left/right speakers and the other two to drive your satellite rear speakers.
Or use two channels for your front left/right speakers and bridge the remaining two channels to drive
your center channel or subwoofer with power galore—you’re limited only by your imagination!
• As an extension to a home hi-fi system - The Servo Quad Amplifier boasts professional specs which
far exceed that of most consumer products. For a real “studio” experience in your own home, try
connecting your home hi-fi amplifier’s auxiliary outputs to the Servo Quad Amplifier’s inputs (thus
using your hi-fi amp as a preamplifier) and then connect your existing speakers to the Servo Quad
Amplifier’s outputs. If you fall in love with the sound (as we’re sure you will), you might want to sub-
stitute a professional pre-amplifier for your existing hi-fi amp—and, from there, you may well end up
graduating to higher-level speakers. High quality sound is addicting—don’t say we didn’t warn you!
• Powering public address systems in permanent installations - The Servo Quad Amplifier can be used
to effectively drive PA speakers in installations such as classrooms and corporate conference rooms.
• Onstage monitoring - In small and medium-sized onstage areas (such as in clubs, lounges, etc.), the
Servo Quad Amplifier can be used to drive stage monitors, allowing the performers to hear
themselves without having to rely on onstage equipment amplification.
• MIDI rack monitoring - MIDI musicians can easily incorporate the Servo Quad Amplifier into their
existing rack of gear. Combined with a pair of high quality stage or studio monitors, this makes for an
excellent monitoring system that can accurately reproduce the broad range of frequencies typically
output by devices such as synthesizers, samplers, and digital audio workstations.
In these pages, you’ll find a detailed description of the many features of the Servo Quad Amplifier, as
well as a guided tour through its front and rear panels, step-by-step instructions for setting up and using
your Servo Quad Power Amplifier, a description of suggested applications, reference appendices, and
full specifications. You’ll also find a warranty card enclosed—please don’t forget to fill it out and mail it in
so that you can receive online technical support and so we can send you updated information about
these and other Samson products in the future.
SPECIAL NOTE: Should your unit ever require servicing, a Return Authorization number (RA) is
necessary. Without this number, the unit will not be accepted. Please call Samson at 1-800-372-6766
for a Return Authorization number prior to shipping your unit. Please retain the original packing materials
and, if possible, return the unit in its original carton and packing materials.