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Pair of round black in-ceiling speakers with white paintable grilles, 6.5-inch drivers visible

Earthquake Sound

Earthquake Sound R650 6.5" In-Ceiling Speaker Pair

SKU CH-45XD-AB35Y

A 6.5-inch in-ceiling speaker pair with silk-dome tweeters, polypropylene woofers and paintable grilles for discreet home audio

  • TypeIn-Ceiling Speakers
  • Frequency Response40Hz-21kHz
  • Sensitivity93 db
  • ColorBlack
  • 5″ polypropylene woofers deliver deep, clear bass down to 45 Hz
  • 1″ silk-dome NEO tweeters swivel for precise high-frequency direction up to 20 kHz
  • 92 dB sensitivity provides loud, detailed sound from modest amplifier power
  • 160 W maximum power handling ensures clean output during dynamic peaks
  • Turn ’N’ Lock mechanism and 200 mm cut-out simplify ceiling installation

In-ceiling stereo pair for distributed audio

The Earthquake Sound R650 is a pair of 6.5-inch in-ceiling speakers designed for whole-house music or home-theatre surround channels. Each unit handles up to 160 watts and presents an 8-ohm load compatible with most multi-zone amplifiers. The 45 Hz to 20 kHz frequency response covers deep bass through detailed treble for balanced sound in every room.

Passive cooling and thermal tweeter protection

With no active electronics inside the enclosure, the speakers add zero fan noise and draw no mains power of their own. A polyswitch thermal protection circuit on the tweeter automatically limits current during sustained high-level playback, preventing damage without audible compression. The 92 dB sensitivity ensures healthy volume levels from modest amplifier power.

Paintable grille and turn-lock mounting

The white rust-resistant grille can be painted to match any ceiling finish, while the edgeless design minimises visual profile once installed. Spring-loaded terminals accept bare wire or pin connectors for quick, tool-free wiring. The Turn ‘N’ Lock mechanism secures the speaker into a 200 mm cut-out with a mounting depth of 101 mm, allowing installation in standard joist bays.

Highlights

  • 5″ polypropylene woofers deliver deep, clear bass down to 45 Hz
  • 1″ silk-dome NEO tweeters swivel for precise high-frequency direction up to 20 kHz
  • 92 dB sensitivity provides loud, detailed sound from modest amplifier power
  • 160 W maximum power handling ensures clean output during dynamic peaks
  • Turn ’N’ Lock mechanism and 200 mm cut-out simplify ceiling installation

Specifications

BrandEarthquake Sound
ModelR650
TypeIn-Ceiling Speakers
Frequency Response40Hz-21kHz
Sensitivity93 db
ColorBlack

Questions about this item

How do I install the R650 speakers and what step do people often miss?

Cut a 7-7/8" hole, insert the speaker into the 4" mounting depth, then twist the Turn 'N' Lock mechanism until it clicks; the step often missed is confirming the lock engages fully before releasing the speaker.

What maintenance or replacement will the R650 speakers need over time?

The paintable rust-resistant grille can be repainted to match ceiling refreshes; the silk dome tweeter has thermal protection and the polypropylene woofer resists moisture, so no scheduled driver replacement is required.

What limit appears first when the R650 speakers run at high volume for long periods?

The 160-watt maximum power handling and 12 dB/octave crossover with Polyswitch protection will trigger thermal limiting on the tweeter before the 8-ohm impedance or 92 dB sensitivity become factors.

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