Part #: 251

Model: NAT251

Cobham - Passenger Speaker Amp, 60 Watt
Part Number :


251
FEATURES
  • Passenger Speaker Amplifier
  • Over-temperature/over-current protected
  • Pin for pin mounting compatible with dB System's Model 240 Cabin Paging Amplifier
  • Distortion less than 0.25%, 30 Hz to 20 Hz
  • Adjustible output frequency response allows compatibility with varying speaker types and sizes
  • Compliance: DO-214, D0-160C, TSO-C50c, Env. Cat: : [A2F2]-BA(CL)XXXXXXZ(BZ)AAATZ(XXC2)XX

 

SPECIFICATIONS
Dimensions: 2.47"H x 4.9"W x 7.8"D (width includes flanges and mating connectors) Weight: 2.6 lbs
Power Supply: 5 amps max @ 28 VDC Speaker Output: 15 Watts into 4 ohms 28 Watts into 2 ohms (30W typical) or 40W into 1 OHM per channel Left and right preamp outputs are 20 mW into 600 OHMS
Output Noise: Greater than 75 dB below rated, all outputs Operating Altitude:: 70,000 ft.
Operating Temperature: -55° to +70° C
Part NumberAmplifier Description:
251 see details above
251-001 Low pass filters adjusted for -3 dB attenuation at 90 Hz on left and right speaker outputs. High pass filters adjusted for -3 dB attenuation at 20Hz on left and right speaker outputs. -001 calibration is designed for use with 4-inch speakers.
251-002 Identical to 251 base model. Part number 251-002 was created to prevent a conflict with and existing part number 251 in customer part system.
251-003 Identical to 251 base model with the following exceptions: a) Briefing audio is to output through the right speaker only b) The receiver inputs and switches are not available c) The briefer switch input is extremely grounded, disabling the  Stereo Left input and the Stereo Right input

 

Low pass filters adjusted for -3 dB attenuation at 90 Hz on left and right speaker outputs. High pass filters adjusted for -3 dB attenuation at 20Hz on left and right speaker outputs.

-001 calibration is designed for use with 4-inch speakers.

Low pass filters adjusted for -3 dB attenuation at 90 Hz on left and right speaker outputs. High pass filters adjusted for -3 dB attenuation at 20Hz on left and right speaker outputs. -001 calibration is designed for use with 4-inch speakers.
Identical to 251 base model with the following exceptions: a) Briefing audio is to output through the right speaker only b) The receiver inputs and switches are not available c) The briefer switch input is extremely grounded, disabling the  Stereo Left input and the Stereo Right input
15 Watts into 4 ohms 28 Watts into 2 ohms (30W typical) or 40W into 1 OHM per channel Left and right preamp outputs are 20 mW into 600 OHMS
251
- Passenger Speaker Amp, 60 Watt
Price Condition Status
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