Caliber Series Class D Monoblock Amplifier

Max Power (Watts)4,500
RMS Power @ 1Ω2,200 x 1
RMS Power @ 2Ω1,500 x 1
RMS Power @ 4Ω900 x 1



Caliber amplifiers are the next step in performance and value. Taking advantage of our tried and true class A/B full range and improved efficiency class D monoblock platforms, Caliber amplifiers continue down the road of reliability and longevity you know well.


  • 1-ohm Stable Monoblock Operation for MAX Power
  • Bridge 2 Monoblocks Together for Double Power!
  • Military Grade PCB w/ PWM MOSFET Power Supply
  • Direct Short, Thermal, & Overload Circuit Protection
  • High/Speaker Level & Low Level/RCA Input
  • 200mV-6V Low-Level RCA Input
  • 4g Power Wire & 8g Speaker Wire Outputs
  • Variable 12dB High & Low Pass Crossovers
  • 12dB Bass Boost Increases Low Octave Harmonics
  • 1800 Phase Shift Improves Low Octave Dynamics
  • Dash Mount Remote Control Included


Max Power (Watts) 4,500
RMS Power @ 1Ω 2,200 x 1
RMS Power @ 2Ω 1,500 x 1
RMS Power @ 4Ω 900 x 1
Dimensions (9.50″w x 2″h) 13.25″
Remote Gain Control Included