
CS-CSUB8 8” In-Ceiling Subwoofer
General Description
Optional square grilles (black and white available)
The Cloud CS-CSUB8 is an 8 inch in-ceiling subwoofer featuring
deep bass and exceptional musical performance. Using premium
drivers and electronics, the CS-CSUB8 offers excellent low frequency
reinforcement. The 8.0 inch woofer incorporates a large magnet
structure, a treated paper cone, and a butyl rubber surround for
lasting, low distortion performance. The included 100 W transformer
provides plenty of power for even high SPL applications.
The CS-CSUB8 incorporates several innovative features that
make it a truly remarkable speaker. The ZeroEdge™ grilles are
magnetically attached for easy installation, and feature a completely
seamless transition from grille to ceiling. Round grilles are supplied
as standard: square grilles may be ordered as an option if preferred.
Both grille styles are available in black or white nish. The entire
CS-C series of speakers uses the same diameter back can which
simpli es installation, and inventory management with only one size
hole to cut, one size grille to install, and one size tile bridge to bring
to the job site.
The CS-C8SUB may alternatively be converted to a pendant
loudspeaker by installing it in the optional PC-200 Pendant Housing
(available as an accessory).
• Magnetic ZeroEdge™ grille with removable badge
• Easy inventory management with a single tile bridge
and common grilles for the whole CS-C series
• Only one hole size to cut for all models within the CS-C series
• Premium drivers and electronics for exceptional
sound quality and intelligibility
• Integrated high power transformer with transformer bypass
• Integrated back can
• Optional Pendant Housing (PC-200) permits free-hanging
installation
• Optional square pro le grilles are available
• 4-pin Euroblock connectors for easy daisy-chaining and secure
connections
• Available colours: black, white
Loudspeaker Dimensions Tile Bridge Dimensions
(11.26in)
286mm
(11.39in)
289.3mm
Every Cloud product is exhaustively tested for electronic performance and sonic perfection in Shef eld, England.
(10.39in)
264mm
Minimum
cutout dia.
Inc. Grille
(8.37in)
212.7mm
(0.15in)
3.9mm
(8.22in)
208.8mm
(14.04in)
356.6mm
(23.62in)
600mm
(10.67in)
271mm
(0.51in)
13mm

Applications
The CS-CSUB8 was developed as a versatile background music and
mid-SPL low frequency reinforcement subwoofer. It offers superior
acoustic performance, and premium design at an economic price
point. It is ideally suited for use in restaurants, retail stores, airports,
churches, board rooms, health care facilities, and hotels. The entire
CS-C series shares the same acoustic signature, so installations with
varying SPL requirements can seamlessly integrate multiple models
from the line. The CS-CSUB8 is a premium subwoofer that offers
high end performance and design at an affordable price point.
Tap Settings
Ta p Tap Settings
100 V 70 V 25 V
1 4 ohm
2 X 100W 13W
3 100W 50W 7W
4 50W 25W 3W
5 25W 13W 1.5W
6 13W 6W 0.8W
Graphs
Frequency Response
Optional
PC-200
Pendant
Housing
Impedance

Technical Specications
Description 8” in-ceiling sub, with magnetic grille and steel back can.
Response (f3) 74 Hz -200 Hz
Response (f10) 58 Hz -500 Hz
Crossover frequency 500 Hz, 1st order (6 dB/octave), passive
Impedance 4 ohm
Sensitivity (2.83 V/1 m) 90 dB
Sensitivity (1 W/1 m) 87 dB
Power handling 100 W
Maximum SPL 107 dB
Transformer taps 100, 50, 25,13, 7 W
Tweeter n/a
Woofer 8 inch treated paper with rubber surround
Input 4 pin Euroblock
Included accessories Input cover plate (installed), male Euroblock
Optional accessories Tile bridge, square prole grilles (black or white)
Available colours Black (RAL9011), White (RAL9003)
Net weight/Gross weight 3.7 kg (8.16 lb) / 4.5 kg (9.2 lb)
Packaging 1 per box, cardboard inner packaging, single instruction sheet
Conformance UL1480 / 2043 planned, RoHS, CE approved
Architect’s and Engineer’s Specication
The loudspeaker shall consist of one powder coated steel enclosure containing one transducer, a transformer, and acoustic damping material. It
shall incorporate an integrated clamping system including 4 dog ears. It shall include one removable circular prole steel grille afxed to the bafe
via integrated magnets. The grille shall include a removable logo tab. Square prole grilles shall be available as an optional accessory.
A pendant housing shall be available as an optional accessory, permitting the loudspeaker to be suspended in free space. The housing shall consist
of an ABS plastic moulding with tapped steel inserts as mounting points. The housing shall be supplied with a full set of suspension components to
allow a safe installation.
The loudspeaker shall include one 203 mm (8.0 inch) low-frequency transducer in a ported enclosure. The low-frequency transducer shall have a
treated paper cone material with a rubber surround.
The loudspeaker shall include a 100 watt transformer with taps at 100 W, 50 W, 25 W, 13 W and 7 W. Said taps shall be selected via an included
tap switch located on the front baffle, under the magnetically removable grille. The transformer shall accept 25 V, 70.7 V, or 100 V. The tap
switch shall also include a transformer bypass position, allowing for direction connection to the 4 ohm low impedance circuit.
Nominal performance specications shall be as follows: The loudspeaker shall have a usable frequency range extending from
58 Hz - 500 Hz (-10 dB). The internal passive crossover shall be tuned to 500 Hz (6 dB/octave). The nominal impedance shall be 4 ohms, and the
maximum continuous RMS power handling shall be at least 100 W according to the EIA-426-B standard. Sensitivity measured at 2.83 V / 1 m shall
be 90 dB. The maximum output at 1 m shall be 107 dB.
Installation for the speaker shall be by 4 blind-mount constant-tension dog ear clips and shall attach to ceiling thicknesses ranging from
3.18 mm (0.125 inches) to 50.8 mm (2 inches). The external wiring shall be via 4-position 5.08 mm Euroblock connector, accepting up to 10 gauge
wire. An optional tile bridge is available.
The maximum overall height shall be no more than 212.7 mm (8.37 inches) and the maximum diameter shall be no more than
289.3 mm (11.39 inches). The maximum visible dimensions shall be no more than 3.9 mm (0.15 inches) in height by 289.3 mm (11.39 inches) in
diameter. The back can shall have a maximum diameter of 264.0 mm (10.39 inches), and shall t within a cutout diameter of 266.7 mm (10.5 inches).
The unit is factory preset to the 64 watt setting in the 100 volt operating mode, with a tap switch located on the front bafe.
The system shall be the Cloud CS-CSUB8 for both low- and high- impedance applications. The optional pendant housing shall be the Cloud PC-200.
The optional square grilles shall be the Cloud CS-8SQGRILLW (white nish) and CS-8SQGRILLB (black nish).
www.cloud.co.uk www.cloudusa.pro
Issue_1.5 E&OE