SPA Series
Features
• Up to 200 watts per channel
into 4 and 8 ohms - the outputs
of the SPA2 and SPA4 -60 models
are designed to provide up to 60
watts per channel while the SPA4-
100 will provide up to 100 watts
and the SPA2-200 will provide
up to 200 watts per channel into
Low-Z loads
• ENERGY STAR qualified
amplifier - The ENERGY STAR
qualified SPA Series employ an
efficient class-D design to conserve
energy and reduce operational cost
• Bridgeable outputs for higher
power - Bridging the outputs of
the SPA -60 amplifiers provide up
to 250 watts, while the SPA2-200
and the SPA4-100 will deliver up to
175 watts into 70V or 100V when
bridged
•Auto-Ramp provides quiet
startup and power-down - The
ENERGY STAR auto-ramp circuitry
ensures quiet and fast power
up from standby and seamless
power-down following 25 minutes
of inactivity, dramatically reducing
power consumption
•Rack-mountable 1U, half rack
width enclosure - The SPA Series
can be mounted in 1 RU, 1/2 rack
space, and their clever joining
brackets enable easy under-table
and wall-mounting
The SPA Series amplifiers from QSC are
four, half-rack RU, convection cooled power
amplifiers delivering two or four channels of up
to 200 watts per channel into 4 Ω and
8 Ω. These amps can also be bridged to
supply up to 400 watts into 4 Ω and 8 Ω,
and up to 350 watts into 70 V or 100 V loads
making them extremely flexible for Low-Z or
High-Z applications. Utilizing an advanced
Class-D amplifier design and Universal
Power Supply, the SPA Series are efficient,
allowing them to be convection cooled and are
ENERGY STAR qualified with quiet auto-ramp
standby functionality. The SPA Series
are housed in an unobtrusive black painted
1/2 RU chassis with unique mounting
hardware enabling rack, table and wall
mounting capabilities.
Efficient Amplifier with Auto-Ramp
The SPA Series amplifiers utilize a highly
efficient class-D design that conserves
energy to reduce operational costs and
requires no active cooling. They are ENERGY
STAR qualified with auto-ramp circuitry that
seamlessly transitions to/from Standby with
no audible pops.
Amplifier Protection
All amplifiers in the SPA Series feature rms and
thermal limiting, as well as protection against
over current, short circuit, and under/over
voltage.
Protection, Control and Mounting
The SPA Series provide rms and thermal
limiting as well as over-current and shortcircuit protection so you can employ them
with confidence. They also come with multiple
mounting options. Every SPA Series comes
with a complete mounting kit allowing it to
be rack mounted by itself or with a second
unit in a 1RU space. Included connecting
brackets provide additional strength when
rack mounting two amps together, but also
make for simple under-table or wall mounting
(like behind a TV). The SPA Series can also be
mounted in plenum spaces when used with
the Plenum Kit accessory.
SPA2-60 | SPA4-60
SPA2-200 | SPA4-100
Low-Z / High-Z Professional Amplifiers
SPA2-60 | SPA4-60
SPA2-200 | SPA4-100
Page 1
SPA Series
Specifications subject to change without notice.
*Peak Power – 250 W
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: +1.800.854.4079 or +1.714.957.7100 • Fax: +1.714.754.6174
©2016 QSC, LLC all rights reserved. QSC and the QSC logo are registered trademarks of QSC, LLC in the U.S. Patent and Trademark office and other countries. All other trademarks are the
property of their respective owners. Patents may apply or be pending.
SPA Series Spec Sheet 05/26/2017 Page 2 please recycle
Frequency response (4 Ω and 8 Ω) 20 Hz - 20 KHz +/- 0.1 dB
Signal to noise (20 Hz - 20 KHz) >100 dB
Input sensitivity 1.23 V (+4 dBu)
Gain at 8 Ω 25.0 dB
Output circuitry Class D
Input impedance >10k, balanced or unbalanced
Maximum input level 12.3 V (+24 dBu)
Cooling Convection
Input connectors 3.5 mm Euro, 5 position (green) 3.5 mm Euro, 10 position (green)
Remote connectors 3.5 mm Euro, 5 position (black) 3.5 mm Euro, 10 position (black)
Output connectors 5 mm Euro, 4 position (green)
Front panel indicators Power, per channel Signal, per channel Protect/Limit
Rear panel indicators Bi-Color LED Signal/Protect/Limit per
channel
Controls 4 Ω/8 Ω/70 V Bridged Highpass On/100 V Bridged Highpass (per channel pair)
General purpose inputs Remote volume, remote standby, on 3.5 mm connectors (10k potentiometer is not
included)
Highpass filter 80 Hz in Bridged 70 V & 100 V
Dimensions 1.7” x 8.7” x 9.5” (43 mm x 220 mm x
241 mm)
Net weight 3.5 lb (1.1 kg) 4.0 lb (1.4 kg)
Shipping weight 6 lb (2.3 kg) 6.5 lb (2.5 kg)
Power requirements Universal Power Supply 100 - 240 VAC, 50 - 60 Hz with active power factor correction
Agency approvals UL, CE, Energy Star, RoHS/WEEE compliant, FCC Class B (Conducted and Radiated
emissions), UL 2043 with plenum kit accessory
Carton contents IEC Cable, quick start guide, connector pack, rack mount ears, mounting brackets
SPA2-60 SPA4-60 SPA2-200 SPA4-100
Channels 2 4 2 4
Stereo Mode (all channels driven)
8 Ω
4 Ω
60 W
60 W
60 W
60 W
200 W
200 W
100 W
100 W
Bridged Outputs (all channels driven)
8 Ω & 4 Ω
70 V
100 V
200 W
250 W
250 W
100 W continuous
125 W
125 W
400 W
350 W
350 W
200 W
175 W*
175 W*