Compact Bass with Big Impact When space is limited but you still crave deep, responsive bass, the Orion XTR8US steps in as the perfect solution. Designed for ultra-compact installations like under seats or behind panels, this all-in-one subwoofer system delivers up to 1000W of clean, punchy bass that enhances your driving experience without stealing your cargo space. Small Size, Serious Sound With a unique 8” woofer setup, the XTR8US may be small in footprint but it hits hard where it counts. It’s engineered to give your system the added low-end depth missing from factory audio, bringing your favorite music to life with richness and clarity. Whether you’re upgrading a commuter or a custom build, this underseat subwoofer delivers reliable performance with minimum installation hassle. All-in-One Simplicity No need for external amps or complex wiring, the XTR8US includes a built-in 250W RMS amplifier that’s pre-tuned for smooth performance. You get full control via bass boost, phase adjustment, and low-pass filter, plus a wired remote to adjust the bass from the driver’s seat. With smart features like auto-start and 4-way protection, it’s made to be easy, safe, and effective. Engineered to Fit Anywhere Crafted for stealthy installations, the XTR8US is housed in a rugged, low-profile enclosure that disappears under most car seats. With clean wiring, illuminated status indicators, and vibration-resistant construction, it’s the kind of install you set up once and enjoy every drive after. Ultra-Compact Enclosure for Tight Spaces  Built to tuck neatly under seats, behind panels, or in compact hatchbacks, the XTR8US delivers serious bass performance without sacrificing cargo room or cabin aesthetics. Built-In High-Efficiency Amplifier Forget external components. The integrated 250W RMS amplifier is optimized for the woofer, offering tight, controlled bass and peak performance of up to 1000W — all in one box. Precision Bass Tuning Tools Dial in your sound with adjustable bass boost (0–12 dB), low-pass filter (50–150 Hz), and a phase switch (0°/180°) for better bass alignment in any vehicle interior. Wired Remote Bass Control Included Make quick on-the-fly adjustments to your bass level from the driver’s seat with the included remote knob — perfect for switching between music genres or moods. Reliable and Protected Performance With 4-way protection (thermal, overload, short circuit, and DC), plus LED status lighting and auto-start technology, the XTR8US is designed to last and protect your gear.