SoundTube CM600I
6.5" Coaxial Ceiling Speaker


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The CM600i is a 6.5" 2-way blind-mount in-ceiling speaker design that delivers extended low-end response (60 Hz) and optimal off-axis performance (up to 10kHz, EASE™ documented). SoundTube’s proprietary BroadBeam® waveguide tweeter system delivers consistent high performance audio across the operating bandwidth. The CM600i speaker design incorporates a low-profile grille, proprietary M6™ motor-board and 6-position tap switch with voice coil/8 Ohm direct. Mounting hardware is included and features a fast and secure constant tension fixed-wing mounting system.

Designed for in-ceiling background to foreground SPL applications, the CM600i delivers a broad dispersion pattern (1 kHz – 10 kHz, EASE™ documented with outside verification) and high sensitivity (91.5 dB 1W/1M). The CM600i is ideal for nightclubs, bars, fitness centers, hotels, airports, convention centers, casinos, corporate venues, churches and other in-ceiling applications requiring background to foreground SPL.


  • Patented BroadBeam® dispersion technology delivers full-frequency, high-performance audio.
  • Reengineered rapid-installation features include easy-install SpeedWing™ mounting system with constant-tension design that mounts to ceiling thicknesses from 6.4 mm (.25") to 42.9 mm (1.69").
  • Separate low-profile grille and magnetic bezel ease installation and in-field service and painting
  • New speed-tap power settings save customers time and money on ordering, inventory tracking, installation and system tuning.
  • 25, 70.7 and 100 Volt transformer options with voice coil/8 Ohm direct.
  • High-frequency driver protection with automatic reset.
  • Sonically matched with SoundTube's new RSi (open ceiling) and SMi (surface mount) speakers for applications requiring combinations of hanging and mounted speakers.
  • Tile bridge included with each CMi speaker. Pre-construction bracket optional.
  • May be used in conjunction with CM1001d Subwoofer for applications where additional bass is required.
  • UL 1480 & 2043 pending


  • Frequency Response(-3 dB): 66 Hz - 22 kHz
  • Low Frequency(-10 dB): 47 Hz
  • Sensitivity: 90.5
  • Power Capacity RMS: 90
  • Max SPL dB @ 1 M: 110.5
  • Nominal Impedance: 8 Ohm
  • Transformer Options: 0.63 - 33 W
  • Woofer: 6.5" Poly
  • Tweeter: 1" BroadBeam®
  • Connections: 4-Pin Euroblock
  • Visible Height: 1.08 in. / 27.5 mm
  • Visible Diameter: 14.76 in. / 375.5 mm
  • Weight: 13.5 lbs / 6.1 kG
  • Colors: Black / White

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