Ceiling Unit
Ceiling Speakers
SR-CS-8SUB
8″ in-ceiling passive subwoofer — 100W RMS, 50–500Hz extended bass.
The 8-inch in-ceiling passive subwoofer is engineered to deliver deep, powerful bass for commercial audio applications, enhancing the low-frequency performance of full-range ceiling speakers. Featuring a 100W RMS (200W peak) power rating and 8Ω impedance, it provides clean, distortion-free bass reproduction with a frequency response of 50Hz–500Hz. Its compact, flush-mount design with a 320mm outer diameter and 290mm cutout ensures easy installation in conference rooms, boardrooms, hospitality venues, retail spaces, and other distributed audio environments. Weighing just 2.5kg, it offers an ideal balance of performance, reliability, and installation convenience.
100 W
Rated RMS
8Ω
Impedance
50–500Hz
Freq. Response
107 dB
Max SPL
Ø290mm
Ceiling Cutout
Features
01
High-excursion 8″ woofer
A dedicated low-frequency driver extends bass response beyond what full-range ceiling speakers can deliver alone.
02
Sealed metal back can
A sealed enclosure controls the driver for tight, accurate bass and isolates it acoustically from the ceiling void.
03
Flush ceiling mount
Dog-ear clamps and a 290mm cutout allow for fast, clean installation with a paintable white grille.
04
Built for commercial duty
A high-temperature copper voice coil and butyl rubber surround are rated for sustained use in commercial spaces.
Specifications
| Speaker type | Passive in-ceiling subwoofer |
| Driver size | 8-inch high excursion woofer |
| Rated power (RMS) | 100 W @ 8Ω |
| Peak power | 200 W |
| Nominal impedance | 8Ω |
| Sensitivity (1W/1m) | 88 dB ±3 dB |
| Frequency response | 50 Hz – 500 Hz |
| Recommended crossover frequency | 80–150 Hz |
| Voice coil | High-temperature copper voice coil |
| Cone material | Polypropylene / treated paper cone |
| Surround | Butyl rubber surround |
| Magnet | Ferrite magnet |
| Maximum SPL | 107 dB or better |
| Speaker unit | 8″ × 1 |
| Dispersion | Omni-directional low frequency radiation |
| Enclosure type | Sealed metal back can |
| Baffle material | High-impact ABS |
| Grille finish | White (paintable) |
| Mounting method | Flush ceiling mount with dog-ear clamps |
| Ceiling cut-out | Ø290 mm |
| Overall dimensions | Ø320 × 135 mm |
| Mounting depth | 135 mm |
| Net weight | 2.5 kg |
| Operating temperature | -10°C to +50°C |
| Storage temperature | -20°C to +70°C |
| Relative humidity | Up to 95% non-condensing |
| Safety compliance | CE, FCC, RoHS |
| IP rating | IP 54 |
All figures are nominal, per manufacturer data.
Applications