Get a full 6.5″ sound upgrade in a slim package with the S-650T 6.5″ thin-mount coaxial speakers, an easy OEM replacement supplied and expertly fitted by Safe and Sound, the vehicle audio and security specialists with over 30 years’ experience.
A full-size sound where depth is tight
Plenty of doors and panels can take a 6.5″ speaker across the face but not behind it, where window mechanisms and tight cavities get in the way. The S-650T solves that. It is a drop-in OEM replacement built on a thin, shallow-mount design, so you get the fuller sound of a 6.5″ speaker in spaces where a standard one simply will not fit.
Smooth highs and a full low end
The S-650T is a true 2-way coaxial. A 0.75″ pure silk dome tweeter with a neodymium magnet and SEL (Sound Expander Lens) ring gives smooth, refined high frequencies, while the 6.5″ DDC-coated 2-layer paper cone reaches down to 63 Hz for warm, full mid-bass. The result is a clear, balanced sound from the same head unit and wiring.
Power and build to match
With 45W RMS per speaker and 135W peak, the S-650T stays clean as you turn it up. An EFF (Efficient Flux Field) motor structure with a 10 oz magnet and a rigid tooled basket keeps the design efficient and solid, while a double-pressed treated foam surround stands up to daily use. The shallow 2.0″ mounting depth is the whole point of this model, and the speakers are supplied as a pair.
- Thin, shallow-mount design – fits doors and panels a standard 6.5″ won’t.
- 2-way coaxial with silk dome tweeter – smooth, refined highs.
- 63 Hz to 20 kHz response – warm, full mid-bass.
- 45W RMS / 135W max per speaker – strong, clean output.
S-650T key specifications
| Specification | Detail |
|---|---|
| Type | 6.5″ thin-mount 2-way full-range coaxial |
| Supplied as | Pair |
| Design | Shallow-mount drop-in OEM replacement |
| Power handling (RMS / peak) | 45W / 135W per speaker |
| Sensitivity (1W / 1M) | 88 dB |
| Frequency response | 63 Hz to 20 kHz |
| Cone | 2-layer DDC-coated paper |
| Tweeter | 0.75″ pure silk dome, neodymium magnet, SEL ring |
| Surround | Double-pressed treated foam |
| Magnet | 10 oz |
| Mounting depth | 2.0″ (thin mount) |
| Nominal impedance | 4-ohm |
Why have Safe and Sound fit it?
Even a drop-in speaker sounds its best when it is fitted properly. Our team makes sure your S-650T speakers are wired with the correct polarity, seated securely and free of rattles, so you get clean, balanced sound from both sides. With three decades of in-car audio installation behind us, we get it right the first time, and back our work with honest, professional advice.
Need a full 6.5″ sound in a tight space?
