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Quick Overview

900 Watt 4 Channel Amplifier
Channels 4
Max Power 900
RMS Power @ 4Ω, 14.4V 4 X 85
RMS Power @ 2Ω, 14.4V 4 X 100
RMS @ 4Ω, Bridged, 14.4V 2 X 220


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  • Class A/B & D MOSFET Power Amplifier
  • 2-Ohm Stable Class A/B Full Range
  • Variable 12dB Hi/Low/Subsonic Crossovers
  • High Level Spekaer Signal Inputs
  • 200mV-6V Low Level RCA Signal Inputs
  • 4ga Power/Ground & 8ga Speaker Terminals
  • Three-Way Protection Circuitry
Specifications REP4-900
Channels 4
Max Power 900
RMS Power @ 4Ω, 14.4V 4 X 85
RMS Power @ 2Ω, 14.4V 4 X 100
RMS Power @ 4Ω, Bridged, 14.4V 2 X 220
Frequency Response 10Hz-50Hz
Input Sensitivity 0.2-6.0V
Signal-to-Noise Ratio (4Ω power) >104dB
Total Harmonic Distortion (4Ω power) <0.05%
High Pass Filter 50Hz - 400Hz
Low Pass Filter 50Hz - 400Hz
Bass Boost 0-6/ 12dB @45Hz
External fuse Required 2 x 20A
Demensions LxHxW (inches) 10.23" x 2.36" x 9.055"
MOSFET PWM Power Supply
Metal Oxide Semi-conductor Field Effect Transistors with Pulse Width Modulated circuitry make up each CRYPT amplifiers power supply. MOSFET transistors increase durability and longevity over bi-polar counterparts...
Variable 12dB Crossovers
Filter out frequencies that could cause damage to speakers, or that subwoofers can't play via 12dB/octave slope high pass, low pass, & subsonic crossovers.

PowerAcoustik is a brand that operates under the umbrella of Epsilon Electronics Inc - a company who specializes in the automotive electronics audio/visual industry. Dating back more than 30 years, Epsilon Electronics Inc. has been a pioneer in the audio world with visionary products for both the home and vehicle. As an innovator, Epsilon introduced several mobile video products, securing significant global market share in a young, evolving technology.

PowerAcoustik is one of the leading name brands under the Epsilon Electronics Inc. Our approach is simple: continue to increase the value of products for our customers. Each year we offer products with features that supersede previous models, as well as your expectations. We apply the most innovative ideas to our designs and features up to the last possible moment, insuring nothing is overlooked.