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VA-4, Dual Channel Stereo Audio Controller
VA4
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The VA-4 is a volume
controller for two channels of balanced stereo audio signals on XLR
connectors. The volume of each stereo channel can be adjusted
independently of the other stereo channel.
Typical
Applications:
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FEATURES
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S/N Ratio - 73.5dB
(unweighted).
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Control - Front
panel or RS-232.
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Volume - –
40dB to + 20dB in 0.245dB steps.
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Inputs - Channel 1
(stereo) and Channel 2 (stereo).
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Outputs - Channel 1
(stereo) and Channel 2 (stereo).
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Standard 19”
Rack Mount - 1U
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SPECIFICATIONS
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| Input: |
2 balanced stereo, 2.9Vpp on female XLR
connectors. |
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Output: |
2 balanced stereo, on male XLR
connectors. |
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| Max. Output Level: |
14 Vpp for GAIN =1; 26 Vpp for GAIN =10.8
(maximum). |
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Bandwidth (-3dB): |
100 kHz. |
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| S/N Ratio: |
73.5dB (unweighted). |
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Crosstalk (All
Hostile): |
-74dB @ 1kHz; -68dB @
20kHz. |
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| Controls: |
Level control and channel selection, impedance selection.
Gain Range: –40dB to +20dB in steps of
0.245dB. |
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Coupling: |
AC at output |
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| Audio THD + Noise: |
0.03% @ 1kHz (0.026%). |
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Audio 2nd Harmonic: |
0.008% @ 1kHz. |
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| Power Source: |
100 - 230 VAC 50/60 Hz 4.6VA. |
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Dimensions: |
19-inch (W), 7-inch (D), 1U
(H). |
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| Weight: |
2.5 kg. (5.5 lbs.) approx. |
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Accessories: |
Power cord, Windows® - based
control software. Null modem adapter. |
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