STM1 Series Golden Section Speakers

The JLPRO STM1 Series Golden Section Speakers are designed to deliver accurate, immersive, and highly detailed sound reproduction for professional audio applications. Building on the inverted structural design of the previous STM2 and STM3 Series, the STM1 Series combines advanced acoustic engineering with compact and efficient cabinet construction.

Featuring a customized constant-directivity horn, the STM1 Series provides precise sound projection and consistent coverage across the entire frequency range. This carefully engineered acoustic structure ensures clear, natural, and immersive sound reproduction, making the system suitable for a wide range of professional applications.

The tweeter diaphragm is treated with a special material coating, allowing the speaker to reproduce the original audio signal with high fidelity. From weak and subtle signals to powerful audio passages, the STM1 Series maintains excellent detail and audio integrity.

In addition, the full-range speakers are engineered with low distortion, helping minimize unwanted coloration and inconsistencies while maintaining the character of the original source. The compact cabinet design offers an excellent balance between energy efficiency, acoustic performance, portability, and application versatility.

Key Features

• Golden Section acoustic design
• Customized constant-directivity horn
• Precise and consistent sound coverage
• Special-coated tweeter diaphragm for high-fidelity reproduction
• Excellent clarity and detailed high-frequency response
• Low distortion for accurate sound reproduction
• Compact and efficient cabinet design
• Suitable for a wide range of professional audio applications

STM118S / STM118SA Subwoofers

The STM118S and STM118SA are high-performance 18-inch floor subwoofers developed to complement the STM1 Series, delivering powerful and controlled low-frequency reproduction.

Both models feature a 1 × 18-inch low-frequency driver, a frequency response of 30Hz–300Hz (±3dB), 600W rated power, and up to 2400W peak power. The 18mm birch plywood enclosure provides a robust and reliable structure for professional use.

The STM118S is a passive subwoofer designed for use with an external power amplifier, while the STM118SA is an active version equipped with a built-in DSP power amplifier, offering a convenient all-in-one solution for professional sound systems.

The STM118SA incorporates advanced DSP functions including PEQ, IIR filters, Butterworth, Linkwitz-Riley and Bessel filters, as well as input/output delay, RMS compression limiting, peak clipping, input limiting, short-circuit protection, DC fault protection, and power limiting.

Technical Specifications

Applications

The STM1 Series Golden Section Speakers are suitable for:

• Professional sound reinforcement systems
• Live events and performances
• Concerts and stage applications
• Clubs and entertainment venues
• Professional PA systems
• Fixed installations
• Portable sound systems

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With the features mentioned above, what are you waiting for? Contact JLPRO today for professional consultation and a complete sound system setup tailored to your needs, ensuring professional performance and delivering high-quality sound for your space.

We are committed to providing 100% brand-new products, officially imported through authorized channels, ensuring customers receive full benefits, warranty coverage, and policies from the manufacturer.

For customers interested in becoming an exclusive regional distributor or sourcing products for projects, please contact us:

📍 JLPRO AUDIO & LIGHTING DEVELOPMENT TRADING JOINT STOCK COMPANY

☎ Hotline: +84 588.525.525 | 0936.247.136

📩 Email: contact@jlpro.vn

🏘 Address: 20A-B Townhouses, Duong Noi Urban Area, Duong Noi Ward, Hanoi, Vietnam.

📌 Technical Support:

Phone: +84 588.525.525 | 0936.247.136

🛠 For Service Feedback & Product Warranty Support:

Phone: +84 588.525.525 | 0976.3555.12