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Two pairs of 6.5 inch black car speakers with wiring harnesses

Alpine

Alpine DM-65-G 6.5" coaxial speakers pair with wiring harness

SKU CH-4QXH-6SQ8E

Two pairs of 6.5" coaxial speakers with GM wiring harnesses, 50 W RMS and 92 dB sensitivity

  • Product typeSubwoofers
  • 200 W peak power handles loud transients
  • 50 W RMS rating sustains clean output
  • 65 Hz – 20 kHz range covers full music spectrum
  • 92 dB sensitivity produces high volume with modest power
  • Metra 72-4568 harness fits select 1988-up GM vehicles

What this bundle provides

This bundle contains two pairs of Alpine DM-65-G 6.5" coaxial speakers and two Metra 72-4568 wiring harnesses. The harnesses are made for select 1988-up GM vehicles so the speakers connect without cutting factory wires. It suits drivers who want a straightforward stereo upgrade using the original speaker locations.

Power handling and output

Each speaker handles 50W RMS and 200W peak power with a 4Ohm impedance and 92dB sensitivity. The frequency response runs from 65Hz to 20kHz. These figures show the set works well with a factory head unit or a modest amplifier for daily listening.

Build details and mounting

The woofers use an injection-moulded bass diaphragm with a rubber surround. A Tedoron tweeter diaphragm and neodymium magnets handle the high frequencies. Grilles are included to protect the drivers once they are installed in the factory openings.

How it compares

Measured against everything we stock in Car Subwoofers & Enclosures, at today’s prices. Recalculated every night.

Price $170.99
Typical for this category: the median of 268 items is $185.49.

Specifications

Product
Product typeSubwoofers

Questions about this item

How do I install the Metra 72-4568 harness with the Alpine DM-65-G speakers in a 1988-up GM vehicle?

Plug the Metra 72-4568 harness into the factory connector, then crimp or solder its wires to the speaker terminals; the step often missed is verifying polarity on each channel before tapping the factory wiring.

What maintenance will the Alpine DM-65-G 6.5" coaxial speakers need over time?

The rubber surround and injection-molded bass diaphragm are durable; periodically check the grilles for debris and ensure the wiring harness connections stay tight to maintain the 92dB sensitivity.

At what point does the 50W RMS power limit affect sustained output?

Continuous playback above 50W RMS risks thermal compression on the voice coil; the 200W peak rating only covers short transients, so match amplifier gain to the RMS figure.

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