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The PowerBass S-650T is a pair of 6.5 inch thin-mount 2-way coaxial car speakers rated at 45 W RMS (135 W peak) per speaker, from PowerBass's S Series range. With a 2.0 inch mounting depth, they are designed as a drop-in OEM replacement where a standard 6.5 inch speaker is too deep to fit.
Key specifications
- Size: 6.5 inch thin-mount coaxial
- Mounting depth: 2.0 inch
- Power handling: 45 W RMS / 135 W peak per speaker
- Impedance: 4 ohms
- Sensitivity: 88 dB (1W/1M)
- Frequency response: 63 Hz to 20 kHz
- Tweeter: 0.75 inch pure silk dome with neodymium magnet
- Cone: black 2-layer paper with DDC coating
PowerBass S-650T 6.5 inch thin-mount coaxial OEM speakers
A slim, easy OEM replacement that delivers a full 6.5 inch sound upgrade where mounting depth is restricted.
A full-size sound where depth is tight
Many doors and panels can accept a 6.5 inch speaker across the face but not behind it, where window mechanisms and tight cavities get in the way. The S-650T is a drop-in OEM replacement built on a shallow-mount design, giving you the fuller sound of a 6.5 inch speaker in spaces where a standard speaker simply will not fit.
Smooth highs and a full low end
The S-650T is a true 2-way coaxial. A 0.75 inch pure silk dome tweeter with a neodymium magnet and SEL (Sound Expander Lens) ring delivers smooth, refined high frequencies, while the 6.5 inch DDC-coated 2-layer paper cone reaches down to 63 Hz for warm, full mid-bass. If you need tweeters as a standalone upgrade, the PowerBass S Series S-1S 1 inch Silk Dome Tweeters are also available from the same S Series range.
Power and build to match
At 45 W RMS per speaker and 135 W 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 inch mounting depth is the key feature of this model. Speakers are supplied as a pair.
- Thin, shallow-mount design: fits doors and panels a standard 6.5 inch speaker won't.
- 2-way coaxial with silk dome tweeter: smooth, refined highs.
- 63 Hz to 20 kHz response: warm, full mid-bass.
- 45 W RMS / 135 W peak per speaker: strong, clean output.
Explore the full range in PowerBass.
Specification
| Nominal Impedance | 4-ohm |
|---|---|
| Material | 2 layer paper DDC cone / silk dome tweeter |
| Magnet | Size 10 oz |
| Sensitivity | (1W / 1M) 88 dB |
| Mounting Depth | 2.0 in |
| Size | 6.5 in Thin |
| Sensitivity | 88 dB |
| Frequency Response | 63 Hz - 20 kHz |
| Power Handling | (RMS/Peak) 45 / 135 watts Each Speaker |
More specs
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What's Included
- PowerBass S-650T
PowerBass
About the PowerBass S-650T
From our tech experts at CEN
PowerBass 6.5 inch coaxial speakers, with the tweeter in the centre of the woofer, rated at 45w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear improvement without complication. PowerBass builds straightforward, output-focused car audio.
Our tech experts advise
Sizes, adapter rings and harnesses vary by vehicle, year and trim, so we confirm what your car takes before ordering rather than guessing. Door treatment matters as much as the speaker. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full PowerBass range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all PowerBass
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: What is the mounting depth of the PowerBass S-650T?
A: The S-650T has a shallow 2.0 inch mounting depth, so it suits doors and panels where a standard 6.5 inch speaker is too deep.
Q: How much power can the S-650T handle?
A: Each speaker is rated at 45 W RMS and 135 W peak, with a 4-ohm impedance and 88 dB sensitivity.
Q: What frequency range does the S-650T cover?
A: It covers 63 Hz to 20 kHz, using a 6.5 inch DDC-coated paper cone and a 0.75 inch silk dome tweeter.
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