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Muting Monitor Amplifier - 2 Watt - Radio Design Labs ST-MA2

SKU: RDLST-MA2
Manufacturer: RDL
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MSRP: $160.44
Price: $120.33
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Muting Monitor Amplifier - 2 Watt
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The ST-MA2 is a compact audio monitor amplifier with control inputs to mute or reduce the gain of its output. This module may be used in conjunction with other RDL® modules to configure automatic mixing systems or may be used alone as a single-speaker monitor amplifier. The ST-MA2 is typically used to drive a small tabletop or overhead monitor speaker in a conference room, boardroom, courtroom, public forum panel or similar installation. The ST-MA2 is ideally suited for use in automatic mixing systems due to its control inputs.

The line-level input may be wired balanced or unbalanced. The audio output will drive standard speakers from 4 to 45 Ω. Normal gain is preset by means of a trimmer on the module.

For tabletop installations, use the ST-MA2 with the WDG1 and RU-SP1.

Specifications

Input Impedance:
20 kΩ Balanced or Unbalanced Bridging
Input Level:
-10 dBV minimum for 2 Watts RMS output
Output Impedance:
8 Ω (will drive 4 Ω loads)
Output Power:
1.75 Watts RMS Continuous; 2 Watts RMS max.
THD+N:
< 0.5%
Bandwidth:
45 Hz to 14 kHz
CMRR:
> 60 dB (50 Hz to 120 Hz)
Residual Noise:
< -80 dB (below 2 Watts RMS)
Switching Time:
< 50 us
Attenuation (Muted):
> 90 dB (1 kHz),
> 85 dB (300 Hz to 3 kHz)
> 75 dB (20 Hz to 20 kHz)
Selectable Attenuation:
3 dB or 6 dB, each setting individually selectable using two independent inputs (connect to ground to activate, 0.3 mA)
Ambient Operating Environment:
0° C to 40° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 200 mA for rated output (220 mA @ 2 Watts RMS)
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.195 lbs.
WEEE weight:
0.145 lbs.
Tariff code:
8543.70.9960
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