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Alpine PXE-C80-88 amplifier and two R2-S65 6.5" speakers

Alpine

Alpine PXE-C80-88 OPTIM8 8-Channel Amplifier w/ R2-S65 6.5" Speakers

SKU CH-RSBR-8286Y

An 8-channel Hi-Res digital sound processor amplifier paired with 6.5" coaxial speakers rated at 300 W peak power and 40 kHz frequency response

  • TypeAmplifier
  • 8-channel amp and DSP in one chassis for simplified install
  • Hi-res audio up to 40 kHz for detailed playback
  • Real-time tuning via PC or iPhone app for precise control
  • 5" coaxial speakers handle 300 W peak for loud clean sound
  • Glass-fibre cones deliver accurate response from 65 Hz upward

Alpine 8-Channel DSP Amplifier Bundle

This bundle pairs an Alpine PXE-C80-88 OPTIM8 8-channel digital sound processor amplifier with R2-S65 6.5-inch coaxial speakers. The amplifier integrates processing and power in one chassis for a streamlined installation. It targets car-audio enthusiasts who want precise tuning control via a PC or iPhone app. The speakers use glass-fiber reinforced cones for accurate reproduction across a 65Hz-40kHz range.

Replacing Separate Processor and Amp Stacks

A single OPTIM8 unit replaces a standalone DSP plus a multi-channel amplifier, reducing wiring complexity and rack space. The jump is worthwhile when you need eight channels of amplification with built-in high-resolution processing and real-time tuning. It is not for systems requiring more than eight amplified channels or those relying on factory head-unit processing without pre-amp outputs.

Limits of 4-Ohm Speaker Impedance

The included R2-S65 speakers present a 4-ohm nominal load with 300-watt peak power handling, defining the safe operating envelope for each channel. The amplifier’s eight channels are fixed, so bi-amping or bridging beyond this count is not possible. Buyers needing lower impedance loads, more channels, or separate component speaker sets must look elsewhere.

Highlights

  • 8-channel amp and DSP in one chassis for simplified install
  • Hi-res audio up to 40 kHz for detailed playback
  • Real-time tuning via PC or iPhone app for precise control
  • 5" coaxial speakers handle 300 W peak for loud clean sound
  • Glass-fibre cones deliver accurate response from 65 Hz upward

Specifications

TypeAmplifier

Questions about this item

What mounting depth do the 6.5" R2-S65 coaxial speakers require?

The Alpine R2-S65 6.5" speakers need a mounting depth that matches your door panel cavity; verify the cutout diameter and clearance before installation.

Which wiring step is most often missed when connecting the PXE-C80-88 processor amplifier?

The 8-channel OPTIM8 requires both power and ground leads plus a remote turn-on wire; skipping the remote lead leaves the DSP inactive.

How often should the glass-fiber cones on the R2-S65 speakers be inspected?

Check the cones and surrounds annually for debris or UV damage; the 300 W peak rating stays reliable if the drivers remain clean and undamaged.

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