Radio Design Labs STM-2, Adjustable Gain Microphone Preamplifier - 35 to 65 dB gain
Features:
Low-Noise Mic Preamp
Adjustable Output Level
High or Low Impedance Mic Inputs
Mic Input to 2 Line Outputs
Two Balanced or Unbalanced Outputs
Phantom Capability
RF-Filtered Inputs
Input:
500 Ω balanced; 5 kΩ unbalanced
Phantom:
24 Vdc; IEC 61938: 2013, Filtered
Outputs (2):
+4 dBu 150 Ω balanced; -10 dBv unbalanced
Frequency Response:
50 Hz to 30 kHz (± 1.5 dB)
Gain:
Adjustable 35 to 65 dB
THD+N:
< 0.05% (50 dB Gain)
CMRR:
>50 dB (50 Hz to 20 kHz)
Residual Noise:
< -70 dB (below +4 dBu 150 Ω source @ 50 dB gain)
Headroom:
> 20 dB (24 Vdc supply); > 14 dB (12 Vdc supply)
Phantom Power Input:
24 to 33 Vdc @ 10 mA maximum
Power Requirement:
GROUND-REFERENCED, 24 to 33 Vdc @ 25 mA
Ambient Operating Environment:
0° C to 55° C
Dimensions:
Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
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
