The SoundTube CM400i delivers effective low-end response (75 Hz, -10 dB) and optimal off-axis performance (2 to 10 kHz, independently verified). The CM400i speaker design incorporates a low-profile grille and fiveposition tap switch with a transformer bypass position. Mounting hardware is included and features a fast and secure constant-tension fixed-wing mounting system.
Applications
Designed for in-ceiling background to mid-level SPL applications, the CM400i is ideal for music and paging in courthouses,
schools, retail stores, grocery, restaurants, hospitals, hotels, casinos, museums, conference rooms and churches. For applications where additional bass is required, SoundTube’s CM1001d-T or SM1001p 10-inch subwoofers provide additional low-end response down to 41 Hz (-10 dB)
CM400i 4″ Features
One 4.0 inch polypropylene woofer and one 1.0 inch convex alu¬minum tweeter with FerroFluid cooling.
Rapid installation blind-mount, fixed- wing mounting mechanism with constant tension design affixing to ceiling thicknesses ranging from 0.025 inch (0.6 mm) to 1.87 inch (47.5 mm).
Easy access five-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position.
Separate tool-free magnetic grille and bezel assembly for ease of install and in-field painting.
Powder-coated steel grille for lasting dura¬bility.
90 dB average sensitivity offers high-out¬put capabilities and reduced amplification costs.
UL 1480 (UEAY) and 2043 approved.
High-quality black or white paint finish. Custom paint colors optional.
Included accessories: Color-coded (orange) tile bridge, paint mask, Euroblock connector and UL cover plate.
CM400I Specifications
System Type 4” coaxial, in-ceiling, ported (20 W transformer for 25, 70.7, 100 V or transformer bypass) Impedance (Nominal) 1 4 Ω Impedance (Min) 3.3 Ω Sensitivity dB @ 2.83 V / 1 M 90 dB Sensitivity dB @ 1 W / 1 M 2 87 dB Frequency Response (± 3 dB) 3 90 Hz - 22 kHz Frequency Response (± 10 dB) 3 75 Hz - 22 kHz Max. Program Power 4 40 W Max. Continuous Power RMS 5 20 W Max. Power SPL @ 1 M 6 100 dB Coverage Angle (±6 dB @ 2 kHz) 100° Coverage Angle (±6 dB @ 10 kHz) 65° Coverage Angle (Averaged 2-10 kHz) 95° Directivity Factor (Q) 4.6 (Avg. 100 Hz - 10 kHz) | 4.3 (2 kHz) Directivity Index (DI) 5.6 dB (Avg. 100 Hz - 10 kHz) | 6.3 dB (2 kHz) Tap Selector Five-position rotary switch with transformer bypass Transducer: Low-Frequency Driver 102 mm (4”) polypropylene cone, butyl rubber surround Transducer: High-Frequency Driver 25.4 mm (1”) convex aluminum tweeter Low-Frequency Voice Coil 19 mm | 0.75” Crossover Frequency 1.8 kHz Network Type: Low Pass 12 dB per octave, 2nd order Network Type: High Pass 12 dB per octave, 2nd order Enclosure Material Drawn steel backcan with ABS baffle Grille Powder-coated steel with integrated ABS bezel Inputs 4-pin, 5.08 mm Euroblock for individual or daisy chain connection Backcan Diameter 153.7 mm | 6.05” Backcan Height 166.4 mm | 6.55” Visible Diameter 207 mm | 8.1” Visible Height 11.9 mm | 0.5” Min. / Max. Ceiling Thickness 0.6 mm | 0.025” - 47.5 mm | 1.87” Mounting Hole Diameter 167.6 mm | 6.6” Weight 2.5 kg | 5.5 lbs Included Accessories Tile bridge, Euroblock connector, and UL cover plate Optional Accessories Pre-construction bracket (AC-CM4-PCB), junction box (AC-CMi-JBOX) Certifications CE, RoHS, UL1480A, UL2043
