Super Tweeter 4 in TPT-ST25 Black - High Sensitivity Bullet Tweeters

In this review of the Timpano Super Tweeter TPT-ST25 Black, the bottom line is simple: these are compact, high-sensitivity bullet tweeters built for installers and audiophiles who want bright, projection-forward treble for pro audio or car systems. The reviewer found the combination of a titanium diaphragm, a 1.5 in voice coil and a 107 dB sensitivity delivers crisp top-end detail and high acoustic output without needing extreme amplifier power, making them a strong choice for anyone adding a high-frequency layer to a system.

Key Features

• High sensitivity: 107 dB sensitivity produces clear, forward treble that fills a room or vehicle without excessive gain.
• Robust handling: Each tweeter uses a 1.5 in voice coil and is rated for 300 watts RMS so they tolerate high drive levels in demanding setups.
• Titanium diaphragm: The titanium dome contributes to bright, articulate highs and fast transient response for vocals and cymbals.
• Built-in protection: Supplied HPF capacitors and internal crossover elements attenuate low frequencies to prevent damage to the tweeter.
• Compact fit: Slim bullet profile with a 3.75 in cutout and 2.24 in mounting depth simplifies installation in constrained spaces.
• Complete kit: Includes mounting screws, capacitors, and a brand sticker so installers have the parts needed on hand.

Who It's For

These tweeters are aimed at car audio enthusiasts and pro installers who want a high-output, bright-sounding super tweeter to complement midrange and subwoofer components. They work well when paired with a DSP or a head unit that can supply a clean high-pass filter, and they suit systems where detailed, forward treble is desired.

Users who need neutral, laid-back highs or who lack the amplifier headroom to run dedicated tweeters at higher levels might prefer a lower-sensitivity or full-range driver. Also, those seeking a fully weatherproof or OEM-style sealed solution should consider alternatives made specifically for exterior mounting.

Pros & Cons

Pros

• Very high sensitivity (107 dB) for strong output from moderate power.
• Sturdy 1.5 in voice coil and titanium diaphragm for clear, detailed highs.
• Includes HPF capacitors and mounting hardware to simplify installation.
• Slim bullet design fits in tight mounting locations.

Cons

• Bright character may be too forward for listeners who prefer mellow treble.
• Not specified as weatherproof, so exterior exposure could be a limitation.

Specifications

Model	TPT-ST25 Black (pair)
Driver size	4 in super tweeter
Impedance	8 Ohm
Power handling	300 W RMS per tweeter; 900 W max per pair
Sensitivity	107 dB
Frequency response	3,500 - 20,000 Hz
Mounting cutout / depth	3.75 in cutout, 2.24 in depth

Our Verdict

The Timpano TPT-ST25 Black super tweeters are a practical, performance-focused upgrade for systems that need high, articulate treble with strong efficiency. They offer excellent value for installers and enthusiasts who want bright, concert-like highs and straightforward installation hardware, though listeners preferring softer top-end or needing weatherproofing should consider alternatives.

Frequently Asked Questions

Do these tweeters need a crossover?
They include HPF capacitors and internal attenuation to protect the diaphragm, and using an external high-pass filter or DSP is recommended for best performance.

What power can each tweeter handle?
Each tweeter is rated for 300 watts RMS, with the pair rated to 900 watts max, so they suit high-power systems when properly crossed over.

Will they fit standard car mounting locations?
The slim bullet design and a 3.75 in cutout with 2.24 in depth make them fairly easy to install in many tight spaces, but measure existing locations before purchase.