Optimal Audio

Optimal Audio Sub 6

Sub-bass Loudspeaker

Ultra-Compact 6" Subwoofer

The Optimal Audio Sub 6 is a compact passive subwoofer designed to deliver tight, controlled low-frequency performance in commercial audio systems. Ideal for smaller spaces such as retail, hospitality, and offices, it enhances full-range speakers with added depth and warmth while maintaining a discreet and space-efficient design. 

Sub 6
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Technical Specifications

TYPE
Sub-bass loudspeaker
FREQUENCY RESPONSE (with preset)
41Hz - 200Hz ± 3dB -10dB @ 37Hz
DRIVERS
LF: 6.5” (165mm)
RATED POWER
200W (AES) 800W (peak)
NOMINAL IMPEDANCE
SENSITIVITY (1W/1m)
88dB (Half Space)
MAXIMUM SPL
112dB (cont) 118dB (peak) (Half Space)
RECOMMENDED AMP
SmartAmp 30
ENCLOSURE
MDF
FINISH
Black or white textured paint
PROTECTIVE GRILLE
Perforated steel
CONNECTORS
Euroblock
FITTINGS
16 x M8, inset bolts
DIMENSIONS
(W) 200mm x (H) 310mm x (D) 400mm not including feet (12mm) (W) 7.9” x (H) 12.2” x (D) 15.7” not including feet (0.4”)
WEIGHT
11.5Kg (25.3lbs
ACCESSORIES (available separately)
Sub Bracket (Pair) M8 Eye Bolt

Sub 6 is an ultra-compact, passive 6” subwoofer designed for applications that call for increased impact and low frequency performance from the smaller Cuboid and Up ceiling loudspeakers.

It features a custom designed, 6” driver with a 2.5” voice coil, combined with a generously sized low frequency port to improve musicality. Delivering 250W (AES) of power with a peak SPL of 118dB, achieving 37Hz at –10dB, this is a truly punchy miniature subwoofer.

The integral M8 inserts, recessed cable channels, and alternate rubber feet positions ensure that Sub 6 fits easily, securely and elegantly into any application. Sub 6 is small enough to fit through a standard ceiling tile and be secured with the available Sub Bracket for wall or ceiling mounting.

An impact-resistant perforated steel grille protects the driver, and the Sub 6 enclosure is constructed from MDF and finished in black or white textured paint.

SmartAmp will provide amplification, EQ settings as well as limiters to protect the driver when playing at louder sound levels.

Sub 6 can be driven by a pair of bridged channels on any powered Zone, whilst the onboard WebApp, ensures system set up and end user control is straight forward.

  • Ultra-compact size
  • Punchy sub-bass extension
  • Flexible wall & ceiling mounting options
  • Recessed channels for discreet cable management
  • Alternate rubber feet positions for install flexibility


TYPESub-bass loudspeaker
FREQUENCY RESPONSE (with preset)41Hz - 200Hz ± 3dB -10dB @ 37Hz
DRIVERSLF: 6.5” (165mm)
RATED POWER200W (AES) 800W (peak)
NOMINAL IMPEDANCE
SENSITIVITY (1W/1m)88dB (Half Space)
MAXIMUM SPL112dB (cont) 118dB (peak) (Half Space)
RECOMMENDED AMPSmartAmp 30
ENCLOSURE MDF
FINISHBlack or white textured paint
PROTECTIVE GRILLEPerforated steel
CONNECTORSEuroblock
FITTINGS16 x M8, inset bolts
DIMENSIONS (W) 200mm x (H) 310mm x (D) 400mm not including feet (12mm) (W) 7.9” x (H) 12.2” x (D) 15.7” not including feet (0.4”)
WEIGHT11.5Kg (25.3lbs
ACCESSORIES (available separately) Sub Bracket (Pair) M8 Eye Bolt

About Penguin Media Solutions

Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.

The Institute of Sound, Communications & Visual Engineers | ISCVE
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