PowerBass S-1S 1″ Silk Dome Tweeters | Smooth, Clear Highs

For over 30 years, Safe and Sound has helped UK drivers get more from their in-car audio — and the S-1S from PowerBass is the upgrade for listeners who value smoothness over sizzle. This pair of 1″ silk dome tweeters delivers accurate, balanced high frequencies without listening fatigue, bringing dull factory sound to life while staying easy on the ears, hour after hour.

Why choose the S-1S?

Most factory speakers sit low in the doors, so the detail in your music fires at your knees rather than your ears. A properly placed pair of tweeters changes that completely — vocals lift to the dashboard, instruments separate, and the whole soundstage opens up. The S-1S does it with a genuine silk dome diaphragm, the material audiophiles choose when they want highs that are detailed but never sharp.

• Smooth, fatigue-free sound — the silk dome reproduces detail from 3kHz to 20kHz with a natural, refined character.
• In-line 12dB crossover included — computer-aided design ensures your tweeters always receive the proper signal, with nothing extra to buy.
• Three mounting styles in the box — flush, angle and surface mounts adapt to A-pillars, sail panels, door tops and dashboards.
• Engineered to last — a neodymium magnet and Ferrofluid cooling keep performance consistent and controlled at higher volumes.

Silk or zirconium? Choosing your PowerBass tweeter

PowerBass offers two add-on tweeters, and the right one comes down to taste. The S-1S silk dome is the smooth, refined choice — ideal if you listen for long stretches or find bright systems tiring. Its sibling, the S-1ZT zirconium super tweeter, trades some of that smoothness for extra sparkle and bite. If you’re not sure which suits your music and your vehicle, the Safe and Sound team will happily talk it through — and our installers know exactly where to position either pair for the biggest improvement in imaging.

Key specifications

Perfect for almost any system

Because the S-1S is an add-on rather than a replacement, it works alongside whatever you already have — a standard factory stereo, an upgraded head unit, or a full amplified install. It’s an ideal finishing touch after a speaker or subwoofer upgrade, restoring top-end balance to a system that’s gained low-end weight.

Tip: tweeter placement and angle have a big effect on the end result, and pairing positions left-to-right matters for imaging. If you’d like advice on the best locations in your vehicle, the Safe and Sound team is happy to help before you buy.

What’s in the box

• Pair of S-1S 1″ silk dome tweeters
• Pair of in-line 12dB crossovers
• Flush, angle and surface mounting hardware