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Technical Data Sheet

Subwoofers

SSOUNDS

SS-CL8SUB

SSOUNDS CL8SUB

8″ in-ceiling subwoofer in a back-can with spring-tab mounting, the low end under CL6 and CL8 ceiling zones.

CL stands for Ceiling Loudspeaker.

SSOUNDS CL8SUB
SSOUNDS CL8SUB subwoofer, view 2 of 3
SSOUNDS CL8SUB subwoofer, view 3 of 3
SSOUNDS CL8SUB · product views

At a glance

Model / SKU
SS-CL8SUB
Category
Subwoofers
Brand
SSOUNDS
Condition
New

Applications

ceilingsubwooferinstallcommercial

Overview

Small ceiling speakers carry speech and background music well and leave out the low end, which is what makes music in a restaurant or a hotel bar sound thin. The CL8SUB adds it from the ceiling: a single 8″ woofer in a scalloped back-can that fits a ceiling cut-out on spring tabs, so the bass comes from the same plane as the CL6 and CL8 speakers around it and nothing stands on the floor. We specify it for restaurants, hotels, retail, resorts and the side rooms of mosques and other houses of worship. It is ported, so drive it through a high-pass filter, and its 100 V tap is set from the front with a screwdriver after it is in the ceiling. A 4 mm steel safety cable comes in the box, so the installer has a second attachment to the building structure without sourcing one: a ceiling tile is not rated to hold a subwoofer on its own.

  • 1 × 8″ woofer
  • Scalloped back-can
  • Spring-tab ceiling mounting
  • Low-frequency extension for CL6 and CL8 ceiling zones

Specifications

General

TypeIn-ceiling subwoofer

Acoustic performance

Frequency response250 Hz – 190 Hz (−10 dB)
Coverage4Omnidirectional
Sensitivity389 dB (1 W @ 1 m)
Maximum SPL1115 dB peak @ 1 m
Enclosure alignmentPorted (drive through a high-pass filter below the passband)

Transducers & components

Driver1 × 8″ woofer

Electrical

Power handling5200 W RMS, 800 W peak
Nominal impedance68 Ω
Operation70 / 100 V line (tapped) or 8 Ω low-Z
Taps (100 V)8 Ω / 25 / 50 / 100 W
Taps (70 V)8 Ω / 12.5 / 25 / 50 W
Tap selectionFront-accessible rotary selector, settable after installation

Connectors & I/O

Connectors5-way terminal block

Rigging & mounting

MountingSpring tabs
Safety attachment4 mm steel safety cable, supplied (secondary suspension to the building structure)

Physical & construction

EnclosureScalloped back-can
Dimensions8321 × 321 × 215 mm
Cut-outØ 290 mm, 215 mm mounting depth
Net weight75.6 kg / 12.3 lb

Notes

  1. 1.Maximum SPL is the peak level at 1 m, driven with pink noise at crest factor 4 to the clipping point of the recommended amplifier, with the SSOUNDS system preset applied. Full-range enclosures are specified under free-field conditions; figures marked half-space are specified over a reflecting plane, the condition subwoofers are deployed in, which adds approximately 6 dB.
  2. 2.Frequency response is specified on axis at 1 m in a free field. The tolerance the figure is referenced to is stated alongside it; where no tolerance is given, the figure is the −6 dB bandwidth.
  3. 3.Sensitivity is specified at 1 W into the nominal impedance at 1 m on axis, averaged across the pass band of the enclosure.
  4. 4.Coverage angles are nominal −6 dB values averaged across the pass band. Per-octave directivity data is available from SSOUNDS system design support for prediction and modelling.
  5. 5.Power handling is rated to AES2 using pink noise with a 6 dB crest factor over a two-hour period. Programme power is twice the AES rating; peak power is four times.
  6. 6.Nominal impedance is the manufacturer's rating for amplifier load calculation; minimum impedance across the operating band may be lower.
  7. 7.Net weight excludes packaging, flight case, accessories and optional rigging hardware.
  8. 8.Dimensions are stated in millimetres and exclude protruding rigging hardware, handles and connector panels unless noted.
  9. 9.All figures are typical values for production units specified under the conditions above. Individual units may vary within published tolerances.

Response

Frequency response
20501002005001k2k5k10k20k60-10-20-30dBHz

Frequency response: 50 Hz to 190 Hz (−10 dB) · 1/24-octave smoothed

Plot conditions. Curves are generated by the SSOUNDS engineering toolchain from this product's specification. Frequency response is shown 1/24-octave smoothed, normalised to the midband reference, with the passband corners at the stated tolerance; response varies within ±1 dB across the passband with a subtle shelf in the top octave. Magnitude slopes are 24 dB/octave beyond the passband corners. The beamwidth curve shows the −6 dB included angle: nominal coverage holds down to the pattern-control limit set by the cabinet width (f ≈ c/w) and widens below it.

Directivity (isobars / balloon). Measured directivity data (isobars, balloon and GLL/CLF for EASE) is in preparation. We publish measured polars only. Contact us for the current measurement status of this model.

Downloads & data files

Loudspeaker data files for prediction software (GLL / CLF for EASE), 2D and 3D drawings and certification documents are issued on request. Contact support@s-soundspro.com and we will send the current release for this model.

Architectural & engineering specification

The subwoofer shall be of the SSOUNDS CL8SUB type, configured as an in-ceiling subwoofer. The subwoofer shall be capable of meeting the following performance criteria: a frequency response of 50 Hz – 190 Hz (−10 dB); a maximum sound pressure level of 115 dB peak @ 1 m; a sensitivity of 89 dB (1 W @ 1 m); nominal coverage of Omnidirectional. Electrically the subwoofer shall provide a power handling of 200 W RMS, 800 W peak, a nominal impedance of 8 Ω. Connection shall be by 5-way terminal block. The subwoofer shall be constructed of Ported (drive through a high-pass filter below the passband), measuring 321 × 321 × 215 mm, and shall weigh 5.6 kg / 12.3 lb. Rigging provision shall be Spring tabs. The subwoofer shall be covered by the manufacturer's two (2) year limited warranty and shall be supplied by SSOUNDS or an SSOUNDS-authorised distributor. No alternate shall be accepted without prior written approval of the consultant or specifying engineer.

Safety & compliance

Read this section before specifying, installing or operating this product. It summarises the safety requirements set out in full in the product documentation supplied with the unit; where the two differ, the product documentation takes precedence.

Suspension & rigging
Overhead suspension is potentially hazardous and must be carried out only by trained and competent personnel using SSOUNDS-approved hardware, within the working load limits and array configurations published in the relevant SSOUNDS rigging documentation. Never exceed the stated number of enclosures per array or the stated splay limits. Inspect all rigging components, pins and retaining clips before every deployment and withdraw from service any component that is deformed, corroded or of unknown history. Secondary safety attachment is required where local regulation calls for it. SSOUNDS accepts no liability for systems suspended using non-approved hardware or outside published limits.
Sound pressure level & hearing
This equipment is capable of producing sound pressure levels that cause permanent hearing damage. Do not operate at high level in close proximity, and ensure that operators, performers and audience exposure complies with applicable occupational noise-exposure regulation. Provide hearing protection where exposure limits may be exceeded.
Environment & mechanical
Unless a published IP rating states otherwise, this product is intended for indoor use or for outdoor use under cover, and must be protected from rain, standing water and prolonged direct sun. Ensure ventilation openings are unobstructed. Stack, pole-mount and transport only as described in the product documentation, and secure the product against toppling wherever the public has access.
Disposal
At end of life, dispose of the product and any packaging in accordance with local regulation for electrical and electronic equipment. Do not dispose of electronic components in general waste.

Limited warranty: two (2) years

SSOUNDS products are warranted against defects in materials and workmanship for a period of two (2) years from the original date of purchase by the end user. Within that period SSOUNDS will, at its option, repair or replace the defective item with no charge for parts or labour. The item must be adequately packaged and dispatched, carriage pre-paid, to SSOUNDS or an SSOUNDS-authorised service centre, accompanied by proof of purchase and a returns reference issued in advance by SSOUNDS. Unauthorised repair, modification or removal of serial-number labelling voids this warranty.

This warranty does not cover

  • Cosmetic wear, finish, grille cloth, paintwork and consumable parts.
  • Damage caused by misuse, abuse, accident, neglect, or operation outside the published ratings on this sheet.
  • Damage caused by transport or handling after delivery, or by inadequate packaging on return.
  • Damage caused by mains or generator supply faults (over-voltage, under-voltage, phase imbalance, surge or incorrect earthing) or by lightning.
  • Water, dust or corrosion ingress on products not carrying a published IP rating for the conditions of use.
  • Damage resulting from amplification or processing outside the recommended configuration on this sheet, or from third-party presets.
  • Products not purchased from SSOUNDS or an SSOUNDS-authorised distributor.

This warranty is in addition to, and does not affect, any statutory rights the purchaser may have under applicable consumer law. It is the sole warranty offered; no other warranty, express or implied, is given.

Warranty claims and returns references: support@s-soundspro.com · +44 20 3769 6537

Legal notice

All information on this data sheet is subject to change without notice. SSOUNDS reserves the right to alter specification, design and construction in the course of continuous product development.

Specifications, drawings and images are provided for guidance in system design and tender documentation. Where a figure is critical to a design, confirm it in writing with SSOUNDS before committing to a specification.

All text, images and drawings herein are the property of SSOUNDS. All trademarks and registered trademarks are the property of their respective owners.

S Sounds Pro Ltd

82a James Carter Road, Mildenhall, IP28 7DE, United Kingdom

+44 20 3769 6537 · support@s-soundspro.com

SSOUNDS · ...enhancing listening pleasure! · s-soundspro.com · support@s-soundspro.com

© 2026 S Sounds Pro Ltd. All rights reserved. Specifications subject to change without notice.

SS-DS-CL8SUB-EN-A4 · Rev. 2610 · Issued 08 Oct 2026

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