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The JBL Selenium ST304 Super Tweeter is engineered to deliver exceptional detail and clarity in the highest frequencies, making it an essential component for achieving brilliant, distortion-free highs. Whether used individually in modest audio systems or arrayed in larger, high-power applications, this super tweeter enhances overall sound presence without introducing harshness. Its distinctive bullet-shaped horn design ensures extended throw and controlled 40° x 40° dispersion, providing precise high-frequency coverage.
JBL Selenium ST304 Super Tweeter 8 Ohm
With a nominal impedance of 8 ohms and a sensitivity of 106 dB SPL, the ST304 is designed for outstanding efficiency and acoustic output. Its 46 mm copper voice coil, mounted on a polyimide (Kapton) former, handles high power while maintaining stable performance under demanding conditions. The barium ferrite magnet and zinc-plated steel magnetic assembly provide a solid foundation for reliability and strength, making this tweeter suitable for both live and studio environments.
The ST304 features a unique phenolic annular diaphragm, which is known for its smooth, natural sound and impressive longevity compared to metallic alternatives. This design choice results in a less fatiguing listening experience, especially when paired with high-quality tweeters and other audio components in a system. The diaphragm’s precise engineering allows for easy repairs and cost-effective maintenance, ensuring a long product life even with heavy use.
Its bullet-shaped horn is optimized for a 40° x 40° dispersion pattern, delivering focused high-frequency coverage that can easily reach larger audiences or fill challenging acoustic spaces. This makes the ST304 an excellent fit for professional PA, home audio, and custom speaker installations where clarity and projection are paramount. The compact housing, made from ABS X17 polymer, is both lightweight and durable, and the overall assembly is designed for straightforward integration into a variety of enclosures.
The JBL Selenium ST304 Super Tweeter is compatible with a wide range of crossovers, and its solder terminals ensure secure connections. For optimal results, use an amplifier capable of delivering twice the RMS driver power for ample headroom and minimal distortion. Whether you’re upgrading your existing system or designing a new one, this super tweeter offers the power, precision, and reliability needed for high-performance audio. It is ideal for those seeking to elevate their sound with crisp, extended high frequencies, and integrates easily with assembled crossovers and other advanced components in a professional or enthusiast setup.
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Speakers
Amplifiers
DAC converters
DSP modules
Turntables
Streamers
Woofers
Tweeters
Exciters
Bass shakers
Plate amplifiers
Amplifier modules
Single board computers
Assembled crossovers
Printed Circuit Boards (PCB)
Capacitors
Resistors
Coils
Circuit Breakers
Crossover tools
Screw terminals
Acoustic measurements
Electric measurements
Sound level meters
DIY amplifier kits
DIY component packs
DIY speaker kit
DIY subwoofer kits
DIY bluetooth speaker
DIY electronics kits
Binding posts
Cabinet Hardware
Cables
Connectors
Speaker cabinets
Electromechanics
Power supplies
Speaker repair
Workshop & tools
Amplifier accessories
Stands & mounts
Gift voucher
Books
New products
