Radio Design Labs ST-DA3, Line Level Distribution Amplifier - 1x3
The ST-DA3 gives you the advantages of an audio distribution amplifier PLUS you can put it where you need it. The ST-DA3 allows bridging of any audio line, adjusting the gain, and driving up to three high or low impedance, balanced or unbalanced loads. The ST-DA3's wide-band circuitry produces the unsurpassed pure clarity, low-distortion and low-noise for which RDL products are known.
The ST-DA3 features RDL's SupplyFlex power input configuration. The module will operate directly from floating 24 VDC or bipolar DC power. If a jumper is connected between the PWR minus terminal and any module ground, the module power becomes ground-referenced.
Input:
20 kΩ balanced or unbalanced
Input Signal:
-15 dBV to +21 dBu (for +4 dBu output)
Maximum Input Level:
+24 dBu
Outputs (3):
150 Ω balanced or 75 Ω unbalanced
Output Signal:
Balanced:
+4 dBu nominal balanced;
Unbalanced:
6 dB below balanced line level
Maximum Output Level:
+25 dBu
Frequency Response:
10 Hz to 100 kHz (+/- 0.05 dB)
THD+N:
< 0.002% (unity gain)
IMD:
< 0.003% (unity gain)
Noise below +4 dBu:
< -98 dB (unity gain)
Headroom:
> 20 dB (above +4 dBu)
Gain:
Unity +/- 17 dB (adjustable)
CMRR:
> 60 dB (50 Hz to 120 Hz)
Power Requirement:
GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 70 mA
