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ASA Series• Specifications, Part Numbers, and Accessories
ASA Series • Specifications, Part Numbers, and Accessories
Specifications, Part Numbers, and Accessories
A-3A-2
Audio
Gain
ASA 101 ............................. +6dB (with balanced output), 0dB (with
unbalanced output)
Input Channel Output Wiring
Left Right Unbalanced Balanced
signal signal 0dB +6dB
signal ——* 0dB +6dB
——* signal 0dB +6dB
*Tested with this in
p
ut un
p
lu
gg
ed
ASA 204, ASA 304 ........... 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 Output DIP Switch Settings
Left Right wiring Unbalanced Balanced
signal signal balanced +9dB +3dB
signal —— balanced +3dB -3dB
—— signal balanced +3dB -3dB
signal signal unbalanced +3dB -3dB
signal —— unbalanced -3dB -9dB
—— signal unbalanced -3dB -9dB
Frequency response
ASA 101 ............................. 70 Hz to 20 kHz, -3dB (with a 600 ohm
load)
ASA 204, ASA 304 ........... 20 Hz to 20 kHz, ±0.05dB
THD + Noise
ASA 101 ............................ 0.07% (typical) @ 1 kHz at nominal level
ASA 204, ASA 304 ........... 0.03% @ 1 kHz at nominal level
S/N ............................................... >90dB (balanced) at rated maximum
output
CMRR ............................................ >75dB @ 20 Hz to 20 kHz
Audio input
Number/signal type
ASA 101 ............................. 1 stereo, unbalanced
ASA 204 ............................. 4 stereo, unbalanced
ASA 304 ............................. 4 stereo, balanced/unbalanced
Connectors
ASA 101 ............................. 1 pair of male RCA (tip-ring)
ASA 204 ............................. 4 pairs of female RCA (tip-ring)
ASA 304 ............................. (4) 3.5 mm captive screw connectors,
5 pole
Impedance
ASA 101 ............................. >10 kohms unbalanced (with a 20 kohm
load)
ASA 204 ............................. >10 kohms unbalanced, DC coupled
ASA 304 ............................. >17 kohms unbalanced, 23 kohms
balanced, DC coupled
Nominal level ............................... -10dBV (316mV) or +4dBu (1.23V)
Maximum level
ASA 101 ............................. +15dBu (4.4V), (balanced or unbalanced)
at 1% THD+N
ASA 204, ASA 304 ........... +20dBu (7.75V), (balanced or unbalanced)
at 1% THD+N
Audio output
Number/signal type
ASA 101 ............................. 1 mono, balanced/unbalanced
ASA 204, ASA 304 ........... 4 mono, balanced/unbalanced
Connectors
ASA 101 ............................. (1) 3.5 mm direct insertion captive screw
connector, 3 pole
ASA 204, ASA 304 ........... (2) 3.5 mm captive screw connectors,
5 pole (double stacked)
Impedance
ASA 101 ............................. <100 ohms unbalanced (with 50 ohm
input impedance)
ASA 204, ASA 304 ........... <50 ohms unbalanced, 100 ohms balanced
Nominal level ............................... -10dBV (316mV) or +4dBu (1.23V)
Maximum level (Hi-Z) (ASA 204, ASA 304 only)
>+23dBu, balanced; or >+17dBu,
unbalanced at 1% THD+N
Maximum level (600 ohm) (all models)
>+21dBm, balanced; or >15dBu,
unbalanced at 1% THD+N
0dBu = 0.775V, 0dBV = 1V, 0dBV 2dBu.