Main Cassette Keel 20MB
CK-MD-2026B
- Size
- 20 mm (W) x 26 mm (H) x 1.0 mm (THK)
- Length
- 2700 mm
- Colour
- Blue
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- T90Pro, T90Double
Accessories
1/3
Application
AccessoriesCassette Keel
Acoustic Framing & Hardware
Cold-rolled hot-dip galvanized steel cassette keel framing system with main, sub, and edge keels plus M8 hardware. Provides the decoupled structure that secures acoustic boards while preserving acoustic isolation.
Product Description
The Cassette Keel system is the structural framework behind Sounds Good acoustic wall and ceiling systems. Manufactured from cold-rolled hot-dip galvanized steel, the keels create a secure fixing structure for sound insulation boards while preserving the acoustic decoupling that prevents sound bridges.
The range includes main, sub, and edge cassette keels in profiles matched to each acoustic system (Q70, Q130, Q140, T90, T90Pro, T90Double, T190), supported by M8 hardware — hex nuts, threaded rod, expansion bolts, and drywall screws — for complete installation.
Project Gallery
Components & Hardware
The Cassette Keel system is built from a range of galvanized-steel keel profiles and M8 fixings, each matched to specific acoustic ceiling and wall systems.
Cassette Keels
Main Cassette Keel 37MB
CK-MD-3726B
- Size
- 37 mm (W) x 26 mm (H) x 1.0 mm (THK)
- Length
- 2700 mm
- Colour
- Blue
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q70
Main Cassette Keel 28MS
CK-M-2832S
- Size
- 28 mm (W) x 32 mm (H) x 1.0 mm (THK)
- Length
- 3000 mm
- Colour
- N/A
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q130, T190
Main Cassette Keel 112MS
CK-M-112S
- Size
- 112 mm (W) x 45 mm (H) x 0.6 mm (THK)
- Length
- 3000 mm
- Colour
- N/A
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q140
Sub Cassette Keel 50SB
CK-S-5019B
- Size
- 50 mm (W) x 19 mm (H) x 0.5 mm (THK)
- Length
- 2700 mm
- Colour
- Blue
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q70, T90Pro, T90Double
Sub Cassette Keel 50SS
CK-S-5017S
- Size
- 50 mm (W) x 17 mm (H) x 0.6 mm (THK)
- Length
- 3000 mm
- Colour
- N/A
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q130, T190
Sub Cassette Keel 114SS
CK-S-114S
- Size
- 114 mm (W) x 35 mm (H) x 0.6 mm (THK)
- Length
- 3000 mm
- Colour
- N/A
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q140
Edge Cassette Keel 20EB
CK-E-2030B
- Size
- 20 mm (H) x 20 mm (W) x 30 mm (H) x 0.5 mm (THK)
- Length
- 2700 mm
- Colour
- Blue
- Material
- Cold Rolled Hot-dip Galvanized Steel
- Application
- Q70, T90Pro, T90Double
Fixing Hardware
M8 Hex Nuts
HW-M8N
- Diameter
- M8
- Thickness
- 6 mm
- Hex Nut Size
- 14
- Colour
- N/A
- Material
- Zinc Plate
M8 Rod
HW-M8R
- Thread Diameter
- M8
- Length
- 3000 mm
- Thread Pitch
- 1.25 mm
- Colour
- N/A
- Material
- Galvanized Steel Rod
M8 x 80 Expansion Bolt
HW-M8-80
- Thread Diameter
- M8
- Length
- 80 mm
- Hex Nut Size
- 14 mm
- Drill Hole Size
- 12 mm
- Material
- Galvanized Steel
3.5 x 35 Drywall Screw
HW-DS-35
- Diameter
- 3.5 mm
- Length
- 35 mm
- Head Diameter
- 8 mm
- Drive Style
- Phillips
- Finish
- Black Phosphate
Product Engineering Principle
The Cassette Keel system provides a secure yet acoustically decoupled framework:
- Main Cassette Keels - Primary load-bearing profiles (20MB, 37MB, 28MS, 112MS)
- Sub Cassette Keels - Secondary runners (50SB, 50SS, 114SS)
- Edge Cassette Keels - Perimeter profiles (20EB)
- M8 Hardware - Hex nuts, threaded rod, expansion bolts, and drywall screws
Combined with shock dampers and vibration damping tape, the keel framework holds the acoustic boards firmly while breaking the rigid connections that would otherwise transmit structure-borne sound.
Why Choose the Cassette Keel System?
A high-performance acoustic system depends on its framing. The Cassette Keel range is engineered to match each Sounds Good ceiling and wall system, ensuring the boards are secured without compromising decoupling.
Key Benefits
- Preserves Acoustic Decoupling: Secure fixing without rigid sound bridges
- System-Matched Profiles: Sized for Q70, Q130, Q140, T90, T90Pro, T90Double, T190
- Durable Construction: Cold-rolled hot-dip galvanized steel
- Complete Hardware Set: M8 nuts, rod, expansion bolts, and screws
- Main, Sub & Edge Keels: Full framing solution
- Professional Build Quality: Consistent, corrosion-resistant performance
Installation Methods
Cassette keels are mechanically fixed to the structure using M8 expansion bolts and threaded rod, with sub and edge keels completing the grid. Vibration damping tape is applied at connection points to minimize rigid contact, and acoustic boards are then fixed to the keel framework with drywall screws.
Recommended Applications
The Cassette Keel system supports all decoupled acoustic build-ups:
- Acoustic Ceilings: T90, T90Pro, T90Double, T190 systems
- Acoustic Walls: Q70, Q130, Q140 systems
- Professional Audio: Recording studios, broadcast facilities
- Entertainment & Commercial: Cinemas, KTV, commercial fit-out
Application
Acoustic Ceiling SystemsAcoustic Wall SystemsDecoupled FramingRecording StudiosCinemas & KTVCommercial Fit-Out
Product Specifications
material
Cold Rolled Hot-dip Galvanized Steel
main Keels
20MB, 37MB (2700mm) · 28MS, 112MS (3000mm)
sub Keels
50SB (2700mm) · 50SS, 114SS (3000mm)
edge Keel
20EB (2700mm)
hardware
M8 Hex Nuts, M8 Rod, M8 x 80 Expansion Bolt, 3.5 x 35 Drywall Screw
installation
Mechanical fixing to structure
