RDL DB-TPSM2A Active 2-Pair Sender Dual Microphone Preamplifier, Format-A, Black

The D SERIES-TPSM2A modules are two-pair audio sending modules compatible with RDL Format-A twisted pair products. The DB-TPSM2A features a black front-panel laminate.

Radio Design Labs DB-TPSM2A Features:

• Two Balanced Microphone XLR Inputs with P48 Phantom
• Switch-Selectable Mic Gain on Rear Panel
• Gain Selector Provides Fixed 40 dB, 60 dB or Automatic
• Automatic Gain: 60 dB for Dynamic Mics; 40 dB for Condenser Mics
• Output Pair Selector to Feed RJ45 Pair (A, B or C) for Each Preamplifier
• Signal and Power Pairs Pass Through RJ45 Connectors
• Module is Remotely Powered Through RJ45 Connector
• Utilizes Two Format-A Pairs
• Daisy-Chain with a Single-Pair Format-A Sender
• Studio-Quality Precision Active Balanced Circuitry

Radio Design Labs DB-TPSM2A Specifications:

• Inputs (2): XLR (3 pin, 1 = GND, 2+, 3-)
• Gain (fixed): 40 dB (LOW gain); 60 dB (HIGH gain)
• Gain (AUTO): 40 dB for condenser mics; 60 dB for dynamic mics
• Maximum Input Level: > -18 dBu (LOW gain); > -35dBu (HIGH gain)
• Input Impedance: > 1 k Ohm balanced
• Phantom Power: P48 (48 V per IEC 61938: 2013)
• Output: RDL TP Format A
• Format-A Signal Pair Used: Switch-selectable A, B, or C (rear panel; one switch for each preamplifier)
• Headroom (above +4 dBu output): > 18 dB
• Channels: 2 (1 and 2; may be used for stereo or as two separate mono preamplifiers)
• Gain Selectors (2): LOW, HIGH or AUTO (rear panel; one for each preamplifier)
• Frequency Response: 20 Hz to 20 kHz (+/- 0.5 dB)
• THD: < 0.05%
• CMRR: > 80 dB (20 Hz to 5 kHz)
• Residual Noise (below +4 dBu output):
  • < -85 dB (20 Hz to 20 kHz, 40 dB gain, 150 Ohm source)
  • < -70 dB (20 Hz to 20 kHz, 60 dB gain, 150 Ohm source)
  • < -70 dB (20 Hz to 15 kHz, 60 dB gain, 150 Ohm sources)
• Power Requirement: 24 Vdc @ 80 mA (120 mA withphantom), Ground-referenced
• Shipping Weight: 0.597 lbs
• Ambient Operating Environment: 0° C to 55° C