Tannoy CMS 801 SUB BM - 400W 8-inch Passive 70V/100V Blind-Mount Ceiling Subwoofer with 8-Ohm Impedance in White Finish

The Tannoy CMS 801 SUB BM is a compact yet powerful 400-watt ceiling subwoofer designed to complement the CMS ceiling monitor systems, providing dynamic low-frequency extension and premium-grade audio for music and speech reinforcement applications. Featuring a powerful 8" long-excursion LF driver, the CMS 801 SUB BM ensures superior bass response, delivering rich and deep low-end frequencies that significantly enhance the audio experience in both commercial and residential environments. With its 100W continuous and 400W peak power handling, this subwoofer offers excellent performance and reliability, making it perfect for demanding environments where high-output sound is necessary. Its ability to integrate seamlessly with 70V, 100V line systems, or 8-ohm direct input systems further adds to its versatility.

Designed for ease of installation, the CMS 801 SUB BM includes a self-aligning 5-way clamp system, ensuring fast and secure mounting in ceiling spaces. The acoustically enhanced zinc-plated steel back can provides superior low-frequency performance and durability while also ensuring minimal resonance. Additionally, the subwoofer comes with a low-insertion loss 60W transformer, offering convenient front-panel tap switching for 70V and 100V systems. A removable powder-coated steel mesh grille with dust protection is also included, allowing for a clean, customized installation. The CMS 801 SUB BM features a semi-matte white finish, ensuring it blends unobtrusively into any environment. Optional accessories, such as a plaster (mud) ring and Arco grille, are available for more specialized architectural integration.

The CMS 801 SUB BM is optimized for use with LAB GRUPPEN LUCIA amplifiers, which can accommodate up to 8 CMS Series loudspeakers per channel, making it ideal for large-scale installations. With a frequency response of 58 Hz to 160 Hz (-3 dB) and a maximum SPL of 118 dB peak, the CMS 801 SUB BM provides powerful bass output with minimal distortion. The speaker's nominal impedance of 8 ohms and its 2nd-order passive crossover at 160 Hz ensure clean, clear sound reproduction across the entire system. Additionally, the CMS 801 SUB BM is UL-1480 certified for general signaling systems and UL-2043 certified for air-handling spaces, making it a reliable and safe choice for commercial installations.

Features

• 400W peak power handling for exceptional low-frequency performance in ceiling installations
• 8" long-excursion driver for deep, dynamic bass extension
• Frequency response: 58 Hz - 160 Hz (-3 dB), with a maximum SPL of 118 dB peak
• Low-insertion loss 60W transformer with multiple taps for 70V, 100V, and 8-ohm direct input systems
• Acoustically enhanced zinc-plated steel back-can for optimal low-frequency performance
• Self-aligning 5-way clamp system for quick and secure installation
• Paintable powder-coated steel mesh grille with dust protection
• Tile support rails and C-ring for secure mounting
• Dimensions: Bezel diameter: 12.80 inches, Hole cutout diameter: 11.61 inches
• Nominal impedance of 8 ohms for easy integration into audio systems
• Optimized for use with LAB GRUPPEN LUCIA amplifiers, supporting up to 8 speakers per channel
• Includes C-ring, tile-bridge kit, paint mask, cut-out template, and grille
• Optional plaster (mud) ring and Arco grille for custom finishes
• Compliance: UL-1480, UL-2043, CE certified for safety and reliability

Specifications

System

• Frequency response (-3 dB): 58 Hz - 160 Hz
• Frequency range (-10 dB): 42 Hz - 300 Hz
• System sensitivity (1 W @ 1 m): 92 dB (1 W = 2.45 V for 8 Ω)
• Rated maximum SPL: 112 dB (average) 118 dB (peak) With THP60
• Power Handling
  • Average: 100 W
  • Programme: 200 W
  • Peak: 400 W
  • Recommended amplifier power: 200 W @ 8 Ω
  • Nominal impedance: 8 Ω
• Transformer Taps (via front rotary switch)
  • Input signal frequency range: 58 Hz - 20 kHz
  • 70 V: 60 W / 30 W / 15 W / 7.5 W / OFF & Low impedance operation
  • 100 V: 60 W / 30 W / 15 W / OFF & Low impedance operation
• Crossover: Integral 2nd order passive, 160 Hz

Transducers

• Low/High frequency: 1 x 200 mm (8.00") long throw woofer with multi fibre paper pulp cone

Enclosure

• Back can: Zinc plated steel
• Baffle: Reflex loaded UL 94V-0 rated ABS
• Grille: Steel, with weather resistant coating
• Safety features: Safety ring located at rear of enclosure for load bearing safety bond
• Clamping design: Security toggle clamp
• Backcan Options
  • Blind Mount (BM): Complete with fixed back can
  • Pre Install (PI): Separate back can for pre installation
  • Cable entry options: Cable clamp & squeeze connector for conduit up to 22mm
  • Conduit knockouts: 3 sets of horizontal positions 19 / 22 / 28 mm (0.75" / 0.87" / 1.1")
  • Connectors: Removable locking connector with screw terminals with "loop through" facility
  • Safety agency ratings (pending): UL-1480, UL-2043, CE
  • BM hole cutout diameter: 295 mm (11.61")
  • PI hole cutout diameter: 295 mm (11.61")
• Dimensions:
  • Bezel diameter: 12.80 inches
  • Front of ceiling to rear of back can (BM): 12.22 inches
  • Front of ceiling to top of safety loop (BM): 12.90 inches
  • Back of ceiling surface to rear of back can (PI): 5.95 inches
  • Back of ceiling surface to top of safety loop (PI): 6.63 inches
  • Front of ceiling to rear of bass ports (no back can) PI: 4.87 inches
• Net Weight:
  • CMS 801 BM: 18.48 lbs
  • CMS 801 PI: 10.34 lbs
  • PI back can: 9.25 lbs
• Included Accessories: C Ring, tile bridge, paint mask, cutout template, grille
• Optional Accessories: Plaster (Mud) Ring