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ThinFit Collection In-Ceiling Speaker 4 x 3" Speaker 36mm depth
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Thinfit In-Ceiling Series - Round Loudspeaker with DSPD Dome Tweeter, Dual 3" Glass Fiber Woofers, Dual 3" Glass Fiber Mid-Woofers, and No Enclosure.

With a total depth of 36mm, the TF37EX In-Ceiling Loudspeakers can be installed pretty much anywhere. Building off the success of our original Thinfit designs, we completely re-engineered the new Thinfit Loudspeakers to sound even better and fit in even tighter spots.
Featuring our DPSD Tweeter and four woven Fibreglass cones, the fidelity is truly incredible.

Coastal Sound

Origin Acoustics’ Explorer Collection offers a musical experience that is unparalleled in premium installations. Due to Origin Acoustics’ dedication to not only sound reproduction but to functionality and aesthetics, there is no better choice for your yacht or water-front property. Our loudspeakers disappear into their surroundings while maintaining a maritime weatherproof seal on your bulkheads and ceilings. Coupled with our DSP amplifiers and expert installation, the Explorer Collection delivers a first-class audio adventure.


In order to create the Explorer Collection, we started with our award-winning Director Collection and dissected it. We’ve added seals, gaskets, stainless steel components, and then some. We had to be thorough, because even one drop of water escaping into your ceiling or walls is unacceptable. To continue our commitment to you, we’ve backed these speakers with our lifetime guarantee. So even in the wettest environments, you can rest assured, Origin Acoustics Explorer Loudspeakers will perform for years to come.

Model Number TF37EX
Part Number STF3700EX
Woofer Quad 3" Fibreglass
Tweeter Dome 20mm Aluminium
Frequency Response 120Hz-20kHz
Power RMS 30 Watts
Power Peak 100 Watts
Sensitivity 89dB +/- 3dB
Impedance  6 Ohm
Mounting Depth 36mm
Diameter 244mm
Cutout Diameter 222mm
Grille Diameter 254mm
ThinFit EX
Install Manual


We are a business made up of passionate people who love their music, movies and everything related. Working with our nationwide network of A/V professionals we supply high-performing products offering a real point of difference and truly enhance our customers' lives. We are fortunate enough to have worked with some of the industry's best people and brands and have learnt a lot from the experience - if you're interested, there is more to the story.

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