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SPA Series
SPA2-60 | SPA4-60
SPA2-200 | SPA4-100
Low-Z / High-Z Professional Amplifiers
SPA2-60 | SPA4-60
SPA2-200 | SPA4-100
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 SPA42-200
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 350 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 wallmounting
The SPA Series amplifiers from QSC are
four half rack 1U, convection cooled power
amplifiers delivering two or four channels of
up to 200 watts per channel into 4Ω and 8Ω.
These amps can also be bridged to supply
up to 400 watts into 4Ω and 8Ω, and up to
350 watts into 70V or 100V loads making
them extremely flexible for Low-Z or High-Z
applications. Utilizing an advanced
Class-Damplifier 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.
SPA 2- 6 0 & SPA4-6 0
The SPA2-60 two channel amplifier and
SPA4-60 four channel amplifier both deliver 60
watts rms per channel into 4 or 8 ohms; the
channels can also be bridged providing up to
200 watts rms into 4 or 8 ohms per channel
pair. The bridged channels can be switched
into 70V or 100V direct drive mode providing
up to 250 watts rms into a 70V or 100V output.
An 80Hz highpass filter is engaged when in
70V or 100V mode ensuring that distributed
loudspeaker transformers are not overdriven
and saturated by too much low frequency
content.
SPA 2-20 0
For higher power the SPA2-200 two channel
amplifier delivers up to 200 watts rms per
channel into 4 or 8 ohms; the two channels
can also be bridged providing up to 400 watts
rms into 4 or 8 ohms. When the channels are
bridged they can be switched into 70V or 100V
direct drive mode providing up to 350 watts
rms into a mono 70V or 100V output. Like the
other SPA models, an 80Hz highpass filter is
engaged when in 70V or 100V mode.
SPA4 -100
The SPA4-100 four channel amplifier delivers
100 watts rms per channel into 4 or 8 ohms;
the four channels can also be bridged in
pairs, each pair providing up to 200 watts
rms into 4 or 8 ohms. The SPA4-100 bridged
pair channels can be switched into 70V or
100V direct drive mode providing up to 350
watts rms into a 70V or 100V output; when in
70V or 100V mode the 80Hz highpass filter is
automatically engaged.
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
Both 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 whenrack 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.
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SPA Series
SPA2-60 SPA4-60 SPA2-200 SPA4-100
Channels
Stereo Mode (all channels driven)
8Ω
4Ω
Bridged Outputs (per bridged output pair)
8Ω & 4Ω
70V
100V
Frequency Response (4Ω and 8Ω) 20 Hz - 20 KHz +/- 0.1 dB
Signal to Noise (20 Hz - 20 KHz) >100 dB
2 4 2 4
60 W
60 W
200 W
250 W
250 W
60 W
60 W
200 W
250 W
250 W
200 W
200 W
400 W
350 W
350 W
100 W
100 W
200W
350 W*
350 W*
Input Sensitivity
1.23V (+4 dBu)
Gain at 8Ω 25.0 dB
Output Circuitry Class D
Input Impedance
Maximum Input Level
>10k, balanced or unbalanced
12.3V (+24 dBu)
Cooling Convection
Input Connectors
Remote Connectors
3.5 mm Euro, 5 position (green) 3.5 mm Euro, 10 position (green)
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
Rear Panel Indicators
Power, per channel Signal, per channel Protect/Limit
Bi-Color LED Signal/Protect/Limit per channel
Controls 4Ω/8Ω/70V Bridged Highpass On/100V Bridged Highpass (per channel pair)
General Purpose Inputs Remote Volume, Remote Standby, on 3.5 mm connectors (10k potentiometer is not included)
Highpass Filter 80Hz in Bridged 70V & 100V
Dimensions 1.7” x 8.7” x 9.5” (43 mm x 220 mm x 241 mm)
Net Weight
Shipping Weight
3.5 lb (1.1 kg) 4.0 lb (1.4 kg)
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
Specifications subject to change without notice.
*Peak Power – dependent on other channel loads.
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 05/31/2016
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