100W
VOL/MUTE
10V
STANDBY
80 Hz
L
(MONO)
R
LISTED 17TT
AUDIO/VIDEO
APPARATUS
CUS
CLASS 2 WIRING
HPA 1001-70V
OUTPUT
70V
LEVELHFPINPUTS
REMOTE
0
LIMITER/
PROTECT
SIGNAL
100-240V 1.3A, 50-60Hz
100W
VOL/MUTE
10V
STANDBY
80 Hz
L
(MONO)
R
LISTED 17TT
AUDIO/VIDEO
APPARATUS
CUS
CLASS 2 WIRING
HPA 1001-70V
OUTPUT
70V
LEVELHFPINPUTS
REMOTE
0
LIMITER/
PROTECT
SIGNAL
100-240V 1.3A, 50-60Hz
STEREO INPUTS
BAL
UNBAL
ON
SPARE
MONO OUTPUTS
3
1
4
2
ASA
304
3
1
4
2
L R LR
POWER
12V
.2A MAX
QUAD AUDIO
SUMMING
AMPLIFIERS
LRLR
POWER
12V
3A MAX
OUTPUTS
4/8 Ohms
INPUTS
70V
COM 70V
CLASS 2
WIRING
REMOTE
(MONO)
(MONO)
LR
10V
LISTED 17TT
AUDIO/VIDEO
APPARATUS
SPKER WIRE: DO NOT
SHORT + OR - TO GRD
VOL/MUTE
L
MPA 181T
R
CUS
Extron
MPA 181T
Mini Power
Amplier
Extron
SI 26X
Two-Way Ceiling
Speakers
Mono Audio
Matrix
DVD Player VCR
Video Camera
CD Player

Extron

ASA 304

Audio Summing

Amplier

Zone 2
Zone 3
Extron
HPA 1001-70V
Audio Power
Amplier
Zone 1
Extron
SI 26CT
Two-Way Ceiling
Speakers
Extron
HPA 1001-70V
Audio Power
Amplier
Extron
SI 3CT LP
Full-Range
Ceiling Speakers
www.extron.com
© 2008 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.
USA West
+1.714.491.1500 / +800.633.9876
+1.714.491.1517 FAX
USA East
+1.919.863.1794 / +800.633.9876
+1.919.863.1797 FAX
China
+86.21.3760.1568 / +400.883.1568
+86.21.3760.1566 FAX
Japan
+81.3.3511.7655
+81.3.3511.7656 FAX
Europe
+31.33.453.4040 / +800.3987.6673
+31.33.453.4050 FAX
Dubai
+971.4.2991800
+971.4.2991880 FAX
Asia
+65.6383.4400 / +800.7339.8766
+65.6383.4664 FAX
www.extron.com
© 2008 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.
USA West
+1.714.491.1500 / +800.633.9876
+1.714.491.1517 FAX
USA East
+1.919.863.1794 / +800.633.9876
+1.919.863.1797 FAX
China
+86.21.3760.1568 / +400.883.1568
+86.21.3760.1566 FAX
Japan
+81.3.3511.7655
+81.3.3511.7656 FAX
Europe
+31.33.453.4040 / +800.3987.6673
+31.33.453.4050 FAX
Dubai
+971.4.2991800
+971.4.2991880 FAX
Asia
+65.6383.4400 / +800.7339.8766
+65.6383.4664 FAX

ASA 204, ASA 304

signAl Processors
Audio outPut
Number / Signal type ........... 4 mono, balanced/unbalanced
Connectors ....................... (2) 3.5 mm captive screw connectors, 5 pole (double stacked)
Impedance ........................ <50 ohms unbalanced, 100 ohms balanced
Nominal level
ASA 204 ........................... -10 dBV (316 mV)
ASA 304 ........................... +4 dBu (1.23 V)
Maximum level (Hi-Z) ........... >+23 dBu, balanced; or >+17 dBu, unbalanced at 1% THD+N
Maximum level (600 ohm) ..... >+21 dBm, balanced; or >15 dBu, unbalanced at 1% THD+N
GenerAl
External power supply ......... 100 VAC to 240 VAC, 50/60 Hz, external, universal; to 12 VDC,
1 A (max.), regulated
Power input requirements ..... 12 VDC, 0.2 A
Temperature / Humidity ........ Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
Rack mount ...................... Yes, with optional 1U rack shelf, part #60-190-01 or 60-604-01; or
VersaTools® rack shelf, part #60-190-20 or 60-604-20.
Also furniture mountable with optional under desk mounting brackets,
#70-212-01, or projector mountable with bracket kit #70-217-01.
Enclosure type ................... Metal
Enclosure dimensions .......... 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide)
4.3 cm H x 10.9 cm W x 7.6 cm D
(Depth excludes connectors.)
Product weight .................. 0.5 lbs (0.3 kg)
Shipping weight ................. 3 lbs (2 kg)
Vibration .......................... ISTA 1A in carton (International Safe Transit Association)
Listings ............................ UL, CUL
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%. Specifications are subject to change without notice.

sPecificAtions

Audio
Gain ................................ Generally unity. Actual gain depends on whether or not both inputs have signals
and also on the output wiring and DIP switch settings. See the table below.
Input Channel Output
Wiring
Output DIP Switch Settings
Left Right Unbalanced Balanced
signal signal balanced +9 dB +3 dB
signal balanced +3 dB -3 dB
signal balanced +3 dB -3 dB
signal signal unbalanced +3 dB -3 dB
signal unbalanced -3 dB -9 dB
signal unbalanced -3 dB -9 dB
Frequency response ............ 20 Hz to 20 kHz, ±0.05 dB
THD + Noise ...................... 0.03% @ 1 kHz at nominal level
S/N ................................. >90 dB (balanced) at rated maximum output
CMRR .............................. >75 dB @ 20 Hz to 20 kHz
Audio inPut
Number / Signal type
ASA 204 ........................... 4 stereo, unbalanced
ASA 304 ........................... 4 stereo, balanced/unbalanced
Connectors
ASA 204 ........................... 4 pairs of female RCA (tip-ring)
ASA 304 ........................... (4) 3.5 mm captive screw connectors, 5 pole
Impedance
ASA 204 ........................... >10k ohms unbalanced, DC coupled
ASA 304 ........................... >17k ohms unbalanced, 23k ohms balanced, DC coupled
Nominal level
ASA 204 ........................... -10 dBV (316 mV)
ASA 304 ........................... +4 dBu (1.23 V)
Maximum level .................. +20 dBu (7.75 V), (balanced or unbalanced) at 1% THD+N
NOTE: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

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