signAl Processors
ASA 100 Series
Passive ASA - Audio Summing Adapters
common feAtures
descriPtion
•
•
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Output: Captive screw terminal
The Extron ASA 100 Series of Audio Summing Adapters are convenient, single-cable solutions
for combining two-channel stereo audio into a mono audio signal. They are ideal for summing
stereo signals for use in mono PA systems in churches, halls, arenas, stadiums, and other
environments where stereo signals would result in cancellation. Because they are small and
passive devices, these Audio Summing Adapters are especially useful in systems where power
and space are limited.
Resistor network provides passive audio summing
Compact design for easy installation into small spaces or behind equipment
in a rack
•
2 foot (60 cm) length
The ASA 111, ASA 121, and ASA 131 feature connectivity options for popular stereo sources
such as RCA, stereo mini plug, or captive screw connectors. The ASA 141 features RCA input
connectors while an internal transformer provides a balanced output isolating the signal from
load and preventing ground loops. All ASA 100 series products are designed as 2 foot long
adapters with a resistor network to properly sum stereo signals without signal loss or damage
to source equipment.
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665
Europe
Dubai
Asia
China
Japan
+31.33.453.4040 / +800.3987.6673
+31.33.453.4050 FAX
+971.4.2991800
+65.6383.4400 / +800.7339.8766
+65.6383.4664 FAX
+86.21.3760.1568 / +400.883.1568
+86.21.3760.1566 FAX
+81.3.3511.7655
+81.3.3511.7656 FAX
+971.4D.29o9w18n80loFaAXd from Www.Somanuals.com. All Manuals Search And Download.
signAl Processors
ASA 100 Series
Audio outPut
sPecificAtions
Audio
Number/signal type
ASA 111, ASA 121 ............... 1 mono, unbalanced
ASA 131 ........................... 1 mono, balanced
Gain
ASA 111, ASA 121 .............. See the table below. Tested with an unbalanced output and a 20k ohm load.
ASA 141 ........................... 1 transformer, mono, balanced/unbalanced
Connectors ....................... (1) 3.5 mm direct insertion captive screw connector, 3 pole
Impedance (with 50 ohm input impedance)
ASA 111, ASA 121 ............... 1k ohms unbalanced
ASA 131 ........................... 2k ohms balanced
ASA 141 ........................... 3.3k ohms balanced (typical)
Nominal level
ASA 111, ASA 121 ............... -10 dBV (316 mV)
ASA 131 ........................... +4 dBu (1.23 V)
ASA 141 ........................... -10 dBV (316 mV) or +4 dBu (1.23 V)
Maximum level
ASA 131 .......................... See the table below. Tested with a balanced output and a 20k ohm load.
Input Channel
Output
Left
signal
signal
—*
Right
signal
—*
-1 dB
-7 dB
-7 dB
signal
* Tested with this input remaining connected.
ASA 141 .......................... See the table below. Tested with a 20k ohm output load. Gain numbers are
2
dB.
Input Channel
Output Wiring
ASA 111, ASA 121, ASA 131.... +24 dBu (12.3 V)
ASA 141 ........................... +15 dBV (5.6 V)
Left
Right
0 dB
open
Unbalanced
Balanced
-3 dB
-3 dB
0 dB
0 dB
0 dB
+3 dB
+3 dB
-3 dB
GENERAL
50 ohms
-9 dB
Power.............................. Not powered
* Tested with this input remaining connected.
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 ...................... Can be attached to any flat surface with supplied Velcro®
Enclosure type................... Molded plastic
Enclosure dimensions
ASA 111, ASA 121, ASA 131 .. 0.7” H x 0.7” W x 1.3” D
Frequency response
ASA 111, ASA 121, ASA 131 .. 20 Hz to 20 kHz, 0.05 dB
ASA 141 with -10 dBV,
+4 dBu, or +15 dBV input ..... 20 Hz to 20 kHz, -3 dB to +1 dB
THD + Noise
ASA 111, ASA 121, ASA 131.... 0.03% @ 20 Hz to 20 kHz at nominal level
ASA 141
-10 dBV input .................... 0.05%, 1 kHz, 1% from 40 Hz to 20 kHz
+4 dBu input .................... 0.05%, 1 kHz, 1% from 50 Hz to 20 kHz
+15 dBV input ................... 0.05%, 1 kHz, 1% from 80 Hz to 20 kHz
S/N................................. 130 dB at maximum output
1.8 cm H x 1.7 cm W x 3.4 cm D
(Depth excludes the 24 inch long pigtail for ASA 121 and the 24 inch long single
cable for the ASA 111 and ASA 131.)
ASA 141 ........................... 1.1” H x 1.1” W x 1.6” D
2.8 cm H x 2.8 cm W x 4.0 cm D
(Depth excludes the 24 inch long pigtail.)
Product weight .................. 0.2 lbs (0.1 kg)
Shipping weight ................. 1 lb (1 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
Audio inPut
Number/signal type
ASA 111, ASA 121, ASA 141.... 1 stereo, unbalanced
ASA 131 ........................... 1 stereo, balanced
Connectors
ASA 111 ........................... (1) 3.5 mm male stereo mini plug (tip-ring-sleeve)
ASA 121, ASA 141 ............... 1 pair of male RCA (tip-ring)
ASA 131 ........................... (1) 3.5 mm captive screw connector, 5-pole
Impedance
Warranty .......................... 3 years parts and labor
NOTE: All nominal levels are at 10%. Specifications are subject to change without notice.
ASA 111, ASA 121 ............... 22k ohms (with a 20k ohm unbalanced load, one input terminated);
4k ohms (with a 20k ohm unbalanced load, both inputs terminated)
ASA 131 ........................... 24k ohms (with a 20k ohm balanced load, one input terminated);
7k ohms (with a 20k ohm balanced load, both inputs terminated)
ASA 141 ........................... 5.4k ohms (with a 20k ohm balanced load, both inputs terminated)
Nominal level
ASA 111, ASA 121 ............... -10 dBV (316 mVrms)
ASA 131 ........................... +4 dBu (1.23 Vrms)
ASA 141 ........................... -10 dBV (316 mVrms) or +4 dBu (1.23 Vrms)
Maximum level
ASA 111, ASA 121, ASA 131 .. +24 dBu (12.3 V)
ASA 141 ........................... +15 dBV (5.6 V)
NOTE 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
667
Europe
Dubai
Asia
China
Japan
+31.33.453.4040 / +800.3987.6673
+31.33.453.4050 FAX
+971.4.2991800
+65.6383.4400 / +800.7339.8766
+65.6383.4664 FAX
+86.21.3760.1568 / +400.883.1568
+86.21.3760.1566 FAX
+81.3.3511.7655
+81.3.3511.7656 FAX
+971.4D.29o9w18n80loFaAXd from Www.Somanuals.com. All Manuals Search And Download.
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