
audio
HPA 502
HPA 1001-70V
Half Rack PoweR amPlifieRs
n 100 watts rms power output
n Professional grade amplifier design
n ENERGY STAR
less than 1 watt power consumption
in standby
n Highly efficient Class D amplifier
design
n Patented CDRS
Suppression
n Convection cooled
n Plenum rated
n Compact 1U, half rack width
enclosure
n Auto-standby with fast power-up
n Remote volume and mute
control port
®
qualified amplifier –
™
- Class D Ripple
HPA 502
100 Watt 2 Channel Half Rack Power Amplifier
HPA 1001-70V
70 Volt 100 Watt Mono Half Rack Power Amplifier
The Extron HPA 502 and HPA 1001-70V are compact, highly efficient, ENERGY
STAR qualified audio power amplifiers that are professional grade and feature Class
D amplification with patented CDRS - Class D Ripple Suppression technology for
near-zero EMI emissions. These compact 1U, half rack width amplifiers are ideal for
installation in lecterns and equipment racks with limited space and ventilation.
n Hidden, detented rear panel
level controls
n Multiple protection circuits
n Remote standby port
www.extron.com

DESCRIPTION
FEATURES (Cont.)
The Extron HPA 502 and HPA 1001-70V are compact power
amplifiers designed for installation in racks and lecterns. These
ENERGY STAR qualified amplifiers feature a highly efficient Class D
amplifier design with patented CDRS - Class D Ripple Suppression
technology from Extron that nearly eliminates EMI emissions and
interference with wireless A/V equipment. This high efficiency allows
the amplifiers to be convection cooled without the need for fans
and operate in environments with little or no ventilation. These
professional grade amplifiers deliver more than 100 dB signalto-noise ratio, unweighted and THD + Noise of less than 0.05%.
With a compact, plenum-rated 1U, half rack width enclosure, the
HPA 502 and HPA 1001-70V deliver ample power output for speaker
systems in classrooms, meeting rooms, boardrooms, and commercial
environments.
The HPA 502 and HPA 1001-70V are ENERGY STAR
qualified amplifiers and energy efficient products
to help meet green building requirements. They
consume just 8 watts when idle and less than
one watt in standby mode. The HPA 502 and
HPA 1001-70V enter into standby after one hour of
inactivity, or when the standby port is triggered. Additionally, both
amplifiers are plenum-rated, allowing for a concealed installation
above a drop ceiling to prevent theft while providing convenient
placement of A/V equipment.
HPA 502
The HPA 502 two channel amplifier delivers 50 watts rms per channel
into 4 or 8 ohms for amplification of voice or program audio content
to stereo program speakers, or two sets of distributed ceiling speakers
in a dual zone application.
HPA 1001-70V
The HPA 1001-70V delivers 100 watts rms for 70 volt constant voltage
speaker distribution systems for voice reinforcement and PA - public
address applications.
The HPA 502 and HPA 1001-70V accept balanced and unbalanced
input signals and include detented level controls located on the rear
panel to prevent tampering. These controls allow for proper audio
system gain structure, or setting individual levels for each zone.
Remote control capability is available for volume adjustment and
muting. Additionally, both amplifiers include multiple protection
circuits that activate when an abnormal condition, such as excessive
clipping or overheating, is detected.
FEATURES
n 50 watts rms per channel into 4 or 8 ohms - HPA 502 – The
HPA 502 provides greater power output for larger rooms than
smaller amplifiers with lower power ratings.
n
100 watts rms output for 70 volt speaker systems - HPA 1001-70V –
The H
PA 1001-70V provides greater power output for larger rooms
than smaller amplifiers with lower power ratings.
n Professional grade amplifier design – The HPA 502 and
HPA 1001-70V deliver more than 100 dB signal-to-noise ratio,
unweighted and THD + Noise of less than 0.05% for ultra-low noise
performance.
n ENERGY STAR qualified amplifiers – The HPA 502 and
n Highly efficient Class D amplifier design – The HPA 502 and
n Patented CDRS - Class D Ripple Suppression – A patented,
n Convection cooled – The HPA 502 and HPA 1001-70V are
n Plenum rated when used with optional Flexible Conduit Adapter
n Compact 1U, half rack width metal enclosure – With the capability
n Auto-standby with fast power-up – The HPA 502 and
n Rear panel detented level controls – Provide attenuation of input
n Multiple protection circuits – Activate during excessive clipping,
n Remote standby port – Enables the HPA 502 and HPA 1001-70V
n Remote volume and mute control port – In basic installations
n Input summing - HPA 1001-70V – Actively sums incoming left and
n High pass filter - HPA 1001-70V – This switch selectable filter
n Screw-lock, 5 mm captive screw speaker connectors – Enables
n
n Internal international power supply
HPA 1001-70V are energy efficient products to help meet green
building requirements for low power consumption and reduced
operating costs.
HPA 1001-70V generate substantially less heat than conventional
amplifier designs, making them ideal for installation in equipment
racks and lecterns with very limited ventilation. They consume
8 watts when idle and less than 1 watt in standby mode.
exclusive technology from Extron that nearly eliminates the high
frequency switching ripple and EMI emissions found in typical
Class D amplifiers. CDRS enables Extron power amplifiers to be
situated near wireless A/V devices without RF interference.
convection cooled without the need for fans, ensuring quiet, reliable
operation.
Kit, part # 70-228-02 – The HPA 502 and HPA 1001-70V meet UL
2043 for smoke and heat release for installation within a plenum
airspace above a drop ceiling. Above-the-ceiling placement conceals
the amplifier to prevent theft, and is convenient for installing
equipment when space inside the room is limited.
to deliver full-sized amplifier power in half the size of many
conventional amplifiers, the HPA 502 and HPA 1001-70V reduce rack
space requirements for many installations.
HPA 1001-70V automatically enter into a standby mode after one
hour of inactivity, dramatically reducing power consumption. They
quickly return to full power status upon signal detection.
signals for setting proper audio system gain staging as well as twozone applications. Their location on the rear panel prevents users
from tampering with level adjustments.
thermal overload, or DC faults to prevent damage to the amplifier
and speakers.
to be remotely powered down when not in use, reducing operating
cost.
without third-party control systems, this port allows the HPA 502
and HPA 1001-70V to be remotely controlled using the optional
Extron VCM 100 Series volume and mute or VC 50 volume
controllers.
right channel signals for mono amplification.
rolls off frequencies below 80 Hz to prevent saturation of speaker
transformers.
simple, secure connections with 22 to 14 AWG speaker cables.
Front and rear-mounted signal and protection indication LEDs –
Provide convenient indication of amplifier operation from both sides
of an equipment rack.

100-240V 1.3A, 50-60Hz
VOL/MUTE
10V
STANDBY
4/8 OHM 50W x 2
1
2
LISTED 17TT
AUDIO/VIDEO
APPARATUS
CLASS 2 WIRING
HPA 502
C US
LEVEL
1
1 2
1 2
LIMITER/
PROTECT
SIGNAL
2
INPUTS
OUTPUT
REMOTE
0 0
100-240V 1.3A, 50-60Hz
VOL/MUTE
10V
STANDBY
4/8 OHM 50W x 2
1
2
LISTED 17TT
AUDIO/VIDEO
APPARATUS
CLASS 2 WIRING
HPA 502
C US
LEVEL
1
1 2
1 2
LIMITER/
PROTECT
SIGNAL
2
INPUTS
OUTPUT
REMOTE
0 0
Extron
HPA 502
Audio Power
Amplier
Extron
Flexible Conduit
Adapter Kit
The con duit ad apter
plate re places
the IEC pl ate
DESCRIPTION
SPECIFICATIONS
Plenum Rated
In many rooms, the space above the ceiling is often used as a return
air plenum. To ensure safety from potentially harmful heat and smoke
release in the event of a fire, A/V products installed in ceilings with a
plenum airspace must comply with safety codes and be specifically
rated for use in plenum environments. The HPA 502 and
HPA 1001-70V power amplifiers are both UL 2043 rated to conform
to heat and smoke release codes for plenum environments. Installing
an amplifier above a drop ceiling offers flexibility for integrators
wanting to conserve rack space and achieve a clean, streamlined
installation free of visible cable runs. An amplifier situated above the
ceiling is also concealed from view, which prevents the possibility of
theft.
Flexible Conduit Adapter Kit
The HPA 502 and HPA 1001-70V feature a built-in power supply with
a modular power connection. In a rack installation, these amplifiers
would be powered from an AC receptacle. However, when the
amplifier is to be permanently situated above a drop ceiling, the
HPA 502 and HPA 1001-70V can be directly hard-wired for AC power
when the optional Flexible Conduit Adapter Kit, part # 70-228-02, is
used in place of a conventional power cord. With this kit, the wiring
is encased in flexible conduit, which connects directly to the amplifier
and a local junction box. This can simplify installation without the
necessity to provide an AC receptacle above the drop ceiling. As with
the HPA 502 and HPA 1001-70V, the Flexible Conduit Adapter Kit is
plenum-rated and meets UL 2043 for smoke and heat release.
Audio
Voltage gain
HPA 502 / HPA 1001-70V ........................ 16x (24 dB) / 57x (35 dB)
Audio input
Number/signal type ............................... 2 stereo/mono, balanced/unbalanced
Connectors ............................................ (1) 3.5 mm captive screw connector, 5 pole
Impedance ............................................ >10k ohms unbalanced/balanced, DC coupled
Nominal level ......................................... +4 dBu (1.23 Vrms), balanced
Maximum level ...................................... +20 dBu (7.75 Vrms), balanced
Input sensitivity
HPA 502 ................................................. +4 dBu (1.23 Vrms)
HPA 1001-70V ........................................ +4 dBu (1.23 Vrms) if driven by one input
-2 dBu (0.615 Vrms) if both inputs are summed
Stereo channel separation (HPA 502) ...... >75 dB @ 1 kHz
CMRR .................................................... >75 dB @ 1 kHz
NOTE: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
Audio output
Number/signal type
HPA 502 ..............................................
HPA 1001-70V .....................................
Connectors
HPA 502 .............................................. (1) 5 mm screw lock captive screw connector,
HPA 1001-70V ..................................... (1) 5 mm screw lock captive screw connector,
Minimum load impedance
HPA 502 ..............................................
HPA 1001-70V .....................................
Amplifier type ......................................... Class D
Continuous power output with a full load and 1% THD at 1 kHz
HPA 502 .............................................. 50 watts (rms) per channel at 4 or 8 ohms
HPA 1001-70V .....................................
Frequency response ................................ 20 Hz to 20 kHz, ±1 dB
THD + Noise .......................................... <0.05% @ 1 kHz at full rated power, 8 ohms
S/N ......................................................
Damping factor (HPA 502 only) .............. >100 @ 8 ohms
High pass filter (HPA 1001-70V only) ...... 80 Hz, 12 dB per octave (switch selectable)
1 stereo, 4- or 8-ohm
1 mono 70 V
4 pole
2 pole
4 ohms
100 watts into a 70 V line
100 watts (rms)
(HPA 502) or 70 V (HPA 1001-70V)
>100 dB (unweighted)
Control/remote – Amplifier
Control port............................................ (1) 3.5 mm captive screw connector, 5 pole
Pin configurations
DC volume control (analog) ................ Pin 1 = 10 VDC, pin 2 = volume/mute (10k ohm
Standby power control (contact closure)
pot.), pin 3 = GND
.. Pin 4 = GND, pin 5 = standby
GenerAl
Power .................................................... 100 VAC to 240 VAC, 50/60 Hz, internal
Typical .................................................... 20 watts
Quiescent ............................................... 8 watts
Standby .................................................. <1 watt (triggered by contact closure or after
Cooling................................................... Convection, unvented, with internal heat sinks
Protection ............................................... Clip limiting, thermal, short circuit, DC output
Indication ............................................... Limiter/Protect LED indicates the onset of clip
Rack mount ............................................ Yes, with optional 1U rack shelf, part #60-190-01
Enclosure type ....................................... Metal
Enclosure dimensions ............................. 1.7" H x 8.7" W x 9.5" D (1U high, half rack wide)
Product weight ....................................... 2.5 lbs (1.1 kg)
Shipping weight .................................... 7 lbs (4 kg)
Listings ................................................... UL, CUL
UL rated for use in plenum airspaces: meets UL 2043 for heat and smoke release; meets UL
60950 and UL 6500 for safety.
Compliances ........................................... CE, FCC Class A, VCCI, AS/NZS, ICES,
MTBF ...................................................... 30,000 hours
Warranty ................................................ 3 years parts and labor
NOTE: All nominal levels are at ±10%.
Model Version Description Part Number
HPA 502 100 Watt Two Channel Power Amplifier ..................
HPA 1001-70V 70 Volt 100 Watt Mono Power Amplifier ................. 60-850-01
Optional Accessories
Flexible Conduit Adapter Kit For PS 123 .................................................... 70-228-02
RSB 129 1U 9.5" Deep Basic Rack Shelf ..................................................... 60-604-01
Specifications are subject to change without notice.
1 hour with no signal)
limiting, thermal cycling, short circuit, or DC
output protection
(RSU 129) or #60-604-01 (RSB 129)
4.3 cm H x 22.1 cm W x 24.1 cm D
®
ENERGY STAR
qualified amplifier
60-849-01