Stellar Industries SLA250, SLA150, SLA470 User Manual

Two Channel
Contractor Series Power Amplifiers

MODEL

SLA150 75W RMS x Two Channels
SLA250 125W RMS x Two Channels
SLA470 235W RMS x Two Channels

Stellar Labs™

www.stellarlabs.com www.mcminone.com

Distributed Exclusively by:

MCM Electronics

Safety Information

The lightning bolt
within a triangle is
intended to alert the
user to the presence
of un insulated
dangerous voltage
levels within the
product’s enclosure.

This voltage may be of
sufficient magnitude to

To reduce the risk of electric
shock, do not remove cover of this
device. There are no user
serviceable parts inside. Refer
servicing only to qualified service
personnel.

The exclamation point
within a triangle is
intended to alert the
user to important
operating and
maintenance
(servicing)
instructions in the
literature
accompanying the
appliance.

constitute an electric
shock risk.

Safety Precautions

• Read and retain these instructions

• Follow all instructions and heed warnings

• Do not use this device near water

• If the surface becomes dirty, clean only with dry cloth, do not use solvents or

thinners

• Install in accordance with the manufacturer’s instructions

• Do not block ventilation openings

• Do not install near heat sources such as radiators, heat registers, stoves, or

other devices that produce heat

• Do not defeat the safety purpose of the grounded plug. This plug has two
blades and a third ground prong. The wide blade or third prong are provided
for your safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet

• Protect the power cord from being stressed at the plugs, convenience
receptacles, and where they exit the amplifier

• Only use accessories specified by the manufacturer

• Unplug the device during lightning storms or when unused for an extended

time

• Refer all servicing to qualified personnel

• This device must not be exposed to water in any way. No object filled with

liquids should be placed on apparatus

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Congratulations on your purchase of this
Stellar Labs SLA Series Stereo Amplifier

This amplifier was designed specifically for use in distributed audio installations, where high
reliability and premium sound quality are a must. Remote on/off triggering and signal sensing allow
these units to be set up in equipment racks, with no further contact required. Rear mounted master
level controls keep installation safe from future tampering. Two auto–switching inputs allow
automatic operation when used with more than one system.

This amplifier is warranted from defects for one year from the date of purchase. Should your
amplifier require service, either within or beyond that warranty period, please contact your MCM
Sales Representative.

This unit includes a host of features, along with an impressive list of specifications, which are
detailed over the next pages. Please take the time to read this document completely prior to
installation of this product. Should you have questions regarding installation or operation of this
unit, please contact the MCM Technical Support Department.

Features

Two sets of L/R inputs, each may be switched to accept line level speaker level signal Auto–
switching between inputs, with adjustable delay
Line level pass through output on input #2
Manual or auto–sensing power control
12V trigger input allows power–on command from external components
12V trigger output allows amplifier to trigger external components
Stereo and bridged mono operation
Heavy–duty binding post speaker outputs
Discrete output components

Specifications (all models)

THD: <0.2% (at 4ohm)
Crosstalk: <65dB @ 1KHz
Frequency Response: 20Hz ~ 20KHz +/- 0.5dB
S/N Ratio: >100dB

Model SLA150

50W RMS per channel, both channels driven into an 8ohm load
80W RMS per channel, both channels driven into a 4ohm load
150W RMS bridged mono, into an 8ohm load

Power requirements: Selectable 115/230VAC, 60/50Hz, 450W max
Dimensions: 3 1/2" (H) x 16 1/2" (W) x 14" (D)
Weight: 21 lbs

Model SLA250

80W RMS per channel, both channels driven into an 8ohm load
125W RMS per channel, both channels driven into a 4ohm load
250W RMS bridged mono, into an 8ohm load

Power requirements: Selectable 115/230VAC, 60/50Hz, 700W max
Dimensions: 3 1/2" (H) x 16 1/2" (W) x 14" (D)
Weight: 26 lbs

Model SLA470

150W RMS per channel, both channels driven into an 8ohm load
235W RMS per channel, both channels driven into a 4ohm load
470W RMS bridged mono, into an 8ohm load

Power requirements: Selectable 115/230VAC, 60/50Hz, 1200W max
Dimensions: 5 1/4" (H) x 16 1/2" (W) x 14" (D)
Weight: 33 lbs

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