High Resolution Series
Power Without Compromise
520 watts of precision-engineered bass, delivered through a single rack unit. The HRSIW8AMP is the exclusive amplifier for the Sunfire HRSIW8 in-wall subwoofer.
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High Resolution Series
520 watts of precision-engineered bass, delivered through a single rack unit. The HRSIW8AMP is the exclusive amplifier for the Sunfire HRSIW8 in-wall subwoofer.
The Amplifier
The HRSIW8AMP is not a general-purpose amplifier. It was designed from the ground up to power only the Sunfire HRSIW8 in-wall subwoofer — delivering 520 watts RMS of clean, distortion-free bass through a compact 1U rack-mount chassis.
All-discrete Class-D switching amplifier for maximum robustness and efficiency. 75W average consumption, less than 0.5W in standby.
Full digital signal processing with adjustable crossover (40–160Hz), selectable slopes (12–36 dB/octave), subsonic filter, and phase control.
Sunfire exclusive anti-shake technology eliminates mechanical vibration, delivering powerful bass without disturbing your living space.
Intelligent power management servo-controls the main amplifier, drawing less than half a watt from household mains during standby mode.
The Science
Sunfire High Back-EMF Technology produces massive amounts of deep bass from a cabinet not much larger than the woofer itself. By increasing input power by a factor of 10 or more and designing custom drivers with oversized magnets and voice coils, Sunfire achieves what conventional designs cannot: efficiency, small enclosure, and bass extension — all three.
This is the science behind Hoffman's Iron Law — and how Sunfire breaks it.
Learn more about High Back-EMFWhat allows the HRSIW8 to deliver room-shaking bass without shaking your walls? StillBass — Sunfire exclusive mechanical vibration elimination technology. Originally developed for the legendary SubRosa, StillBass packs more power and performance into in-wall subwoofers than any competitive product.
Powerful bass. Zero vibration. Your neighbors will never know.
Proprietary FFD Technology is what makes the HRSIW8AMP the perfect match for the prodigious bass capabilities of the HRSIW8 subwoofer. Combined with DSP-controlled equalization, adjustable crossover, and five EQ presets (Impact, Movie, Music, Dynamic, Flat), every listening experience is precisely tuned.
Five EQ presets. Three memory locations. Infinite possibilities.
The Perfect Pair
The HRSIW8AMP amplifier is exclusively designed to power in-wall subwoofers from the Sunfire family of brands. Each component is purpose-built to work in perfect harmony.
Signature Dual 8" In-Wall Subwoofer with StillBass mechanical vibration elimination. Wrapped in an ultra-thin cabinet that delivers 520 watts of vibration-free performance.
Nice Audio takes the innovation of Sunfire subwoofers and builds on that legacy. Elegance and performance crafted into a compact, space-efficient high-powered cabinet.
Same subwoofers. Same technology. Two trusted brands. Proficient and Nice Audio are both part of the Nice family of brands, sharing the same Sunfire-engineered High Back-EMF platform.
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