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Alphasonik PMA4075A

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4-Channel Class A/B Bipolar Power Amplifier • 75W x 4 chan. @ 4 Ohm • 120W x 4 chan. @ 2 Ohm • 230W x 2 chan. @ 4 Ohm • Bridgeable • Remote Mount Digital Voltmeter

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Product Highlights


4-Channel Class A/B Bipolar Power Amplifier • 75W x 4 chan. @ 4 Ohm • 120W x 4 chan. @ 2 Ohm • 230W x 2 chan. @ 4 Ohm • Bridgeable • Remote Mount Digital Voltmeter

Description


  • 4-Channel Class A/B Bipolar Power Amplifier
  • RMS Power Rating:
    • 75 watts x 4 chan. x 4 Ohm
    • 120 watts x 4 chan. x 2 Ohm
    • 230 watts x 2 chan. x 4 Ohm Bridged
  • Bridgeable
  • Tiffany-style input and ouput RCA jacks
  • Hour meter
  • Remote mount digital voltmeter
  • Heavy duty heat sink
  • High speed switching power supply
  • THD: 0.05%
  • S/N Ratio: >100dB
  • Frequency Response: 5Hz-50kHz
  • Variable Low Pass Filter: 50Hz-250Hz, 24 dB/oct
  • Variable High Pass Filter: 50Hz-250Hz, 24 dB/oct
  • Variable Subsonic Filter: Off-20Hz, 24dB/oct
  • Variable Bass Boost at 45Hz: 0-18dB
  • Variable Phase Shift: 0-180 degrees
  • Input Impedance: 10K ohm
  • 4-Way Protection Circuitry: Thermal, Short Circuit, Overload, and DC Offset
  • On board hook-up terminals
  • Dimensions: 21-5/8" L x 8-1/4" W x 2-1/2" H
  • 1-year SonicElectronix.com warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
75 watts x 4 channel
RMS Power @ 2 ohms
120 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
230 watts x 2 channel
Amplifier Specifications
Number of Channels
4-Channel
Total RMS Power Output
480 watts
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.05%
Speaker Level Inputs
No
Preamp Outputs
1 pair
High-Pass Crossover Frequency
50 - 250 Hz
Low-Pass Crossover Frequency
50 - 250 Hz
Subsonic Filter
Off - 20 Hz
Signal-to-Noise Ratio
100 dB
Bass Boost
0 - 18 dB
Fuse Rating
30A

Item Details


Manufacturer:

Model Number:

PMA4075A

Weight:

20.00lbs

Internal SKU:

pma4075a

Internal Product ID:

4639

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.