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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

  • Product 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.

How it compares

Measured against everything we stock in Car Audio Amplifiers, at today’s prices. Recalculated every night.

Price $1,087.99
Pricier than about 91% of the 158 comparable items (median $225.49).

Specifications

Product
Product 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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