QSC SPA2-200, SPA2-60, SPA4-100, SPA4-60 User Manual

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: [phone]

©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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