STX-1500US

Powerful Bass in a Compact Under-Seat Design

The STX Audio STX1500US 10-Inch Amplified Subwoofer delivers deep, powerful bass performance in a compact enclosure designed for vehicles with limited installation space. Featuring a built-in 1500W amplifier and high-performance 10-inch 4-ohm woofer, this all-in-one solution enhances your car audio system with rich low-frequency output without requiring a separate amplifier or large subwoofer box.

With its slim 68mm profile, the STX1500US fits easily under seats, inside shallow cargo areas, or in compact vehicle interiors. Engineered for clean audio performance, it offers a frequency response of 55Hz–20KHz, signal-to-noise ratio greater than 90dB, and less than 0.4% total harmonic distortion for crisp, accurate bass reproduction. Perfect for factory and aftermarket audio systems, this amplified subwoofer provides strong bass while maximizing interior space.

Adjustable Sound Controls for Custom Audio Performance

Designed for audio enthusiasts who demand flexibility and control, the STX Audio STX1500US includes advanced tuning features that allow users to customize bass performance to match their listening preferences. The adjustable low pass filter ranges from 50Hz to 150Hz, enabling seamless integration with existing speakers for balanced sound reproduction.

A variable bass boost control provides up to +24dB of enhancement, allowing users to increase low-end impact for more aggressive bass response. The built-in 20Hz subsonic filter improves efficiency by eliminating inaudible ultra-low frequencies that can waste amplifier power. Whether you prefer tight, accurate bass or deep, booming lows, the STX1500US gives you the tools to fine-tune your system for optimal performance.

Easy Installation with Versatile Connectivity

The STX Audio STX1500US is engineered for convenient installation and broad compatibility with factory and aftermarket head units. Featuring both high-level and low-level input sensitivity options, this amplified subwoofer easily integrates into a variety of car audio systems without requiring complex modifications.

Its compact enclosure houses both the subwoofer and amplifier in one streamlined design, simplifying installation while reducing the need for additional equipment and wiring. A built-in 25A fuse provides added circuit protection for reliable operation and peace of mind. Ideal for cars, trucks, SUVs, and compact vehicles, the STX1500US delivers impactful bass performance in a space-saving package built for modern audio upgrades.

Highlights

• 10-inch amplified under-seat subwoofer
• Built-in 1500W amplifier
• Compact all-in-one enclosure design
• Slim 68mm profile for tight installations
• Ideal for under-seat and shallow cargo spaces
• Adjustable low pass filter from 50Hz–150Hz
• Variable bass boost control from 0 to +24dB
• Built-in 20Hz subsonic filter
• Signal-to-noise ratio greater than 90dB
• Less than 0.4% total harmonic distortion
• High-level and low-level input compatibility
• Compatible with factory and aftermarket stereos
• Built-in 25A fuse protection
• Clean and powerful low-frequency output
• Excellent solution for compact vehicles
• Easy installation without separate amplifier required

Package Includes

• 1 x STX Audio STX1500US 10” Amplified Subwoofer
• Built-in amplifier (pre-installed)
• Power and connection wiring harness
• Mounting hardware
• User/installation manual (if included by manufacturer)