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SoundTube CM600i 6.5-Inch Two‑Way In‑Ceiling Speaker
The SoundTube CM600i is a high‑output, two‑way 6.5″ in‑ceiling speaker with patented BroadBeam® waveguide tweeter technology, designed for clear coverage and intelligibility in commercial background-to-foreground audio installations. It is available in both black (CM600i‑BK) or white (CM600i‑WH), with paintable magnetic grille assemblies.
Featuring a polypropylene woofer and 1″ convex tweeter with ferrofluid cooling, plus a cast‑aluminum motor‑board heat sink, this speaker supports transformer taps for 25 V, 70.7 V, and 100 V systems or direct 8 Ω bypass. With 88 dB sensitivity and up to 90 W RMS / 180 W program power, it delivers high SPL performance suitable for large venue coverage.
Key Features
- Driver complement: 6.5″ polypropylene woofer with butyl rubber surround; 1.0″ convex aluminum BroadBeam® tweeter with ferrofluid cooling
- Transformer taps: 25 V / 70.7 V / 100 V selectable via six‑position rotary switch; transformer bypass for direct 8 Ω input
- Sensitivity: ~88 dB @ 1 W/1 m (and @ 2.83 V/1 m)
- Frequency response: 69 Hz–22 kHz (±3 dB); 52 Hz–22 kHz (±10 dB)
- Power handling: 90 W RMS continuous; 180 W program
- Max SPL: ~107.5 dB @ 1 m (based on continuous power)
- Coverage angle: ~135° (±6 dB @ 2 kHz)
- Mounting system: Blind‑mount fixed‑wing SpeedWing™, fits ceiling thickness 0.25″–1.91″
- Grille: Magnetic powder‑coated steel flange (black or white), paintable; safety tether attached
- Enclosure: ABS, cast aluminum motor‑board, ported for enhanced low end
- Certifications: UL 1480, UL 2043, CE, RoHS compliant
- Color options: CM600i‑BK (black); CM600i‑WH (white)
Technical Specifications
- Frequency Response (±3 dB): 69 Hz–22 kHz
- Frequency Response (±10 dB): 52 Hz–22 kHz
- Sensitivity: 88 dB @ 1 W/1 m; 88 dB @ 2.83 V/1 m
- Crossover Frequency: ~3.0 kHz (2nd-order, 12 dB/octave)
- Nominal Impedance: 8 Ω
- Minimum Impedance: ~5.3 Ω under load
- Directivity Factor (Q): 4 (avg), 5.4 (@2 kHz)
- Directivity Index (DI): 5.6 dB (avg), 7.3 dB (@2 kHz)
- Coverage Angle (±6 dB): ~135° @ 2 kHz
- Backcan Dimensions: 11.68″ × 7.94″ (29.67 cm × 20.17 cm)
- Visible Dimensions: 14.76″ × 1.08″ (37.49 cm × 2.74 cm)
- Cutout Diameter: 12.75″ (32.39 cm)
- Ceiling Thickness Support: 0.25″–1.91″ (6.4 mm–48.5 mm)
- Weight: ~10.1 lbs (4.6 kg)
- Shipping Weight: ~15 lbs (6.8 kg)
What's Included
- Magnetic steel grille and bezel (color-matched or black/white option)
- Tile bridge for T-bar ceilings
- Euroblock input connector
- Paint mask
- Conduit plate