Summit HiFi Pretium 18" Series Sealed Subwoofer

Built to Shake. Tuned to Perfection.
When Bass Becomes an Experience.

Not just deep.
Absolutely devastating.

The Pretium 18" Series is Summit HiFi’s most powerful subwoofer ever—a true 18-inch monster engineered to dominate space, move massive air, and pressurize your room like a live performance.

This is King Kong power.
This is thunder in your room.

Driven by a massive long-stroke 18” driver and a rock-solid high-power amplifier, the Pretium 18 delivers overwhelming low-frequency impact without sacrificing precision. Explosions hit harder. Bass drops land deeper. Every note stays tight, clean, and precise.

And the best part?
All this performance comes at an unexpectedly attainable price.

This isn’t bass you politely hear.
This is bass you feel—in your chest, your floor, and your bones.

Turn it on—and the room gives in.
The Pretium 18 doesn’t ask for attention.
It takes it.

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Shout-Out Moments 🚀

🔥 “Bass that breathes.”
🔥 “Built to shake. Tuned to perfection.”
🔥 “Precision meets pure power.”
🔥 “This is not a subwoofer. This is a statement.”
🔥 “Feel the room tremble, not just hear it.”
🔥 “Every drop hits like thunder.”
🔥 “Insane output, zero compromise.”
🔥 “Bass that commands attention.”
🔥 “From subtle rumble to full-blown chaos.”
🔥 “When bass becomes an experience.”

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Unleash the Power

Driver & Amplifier

• High-magnetic, long-stroke 18” driver

• Stable high-power amplifier delivering:

  • 1200W RMS continuous power

  • 6000W peak output

No strain. No compression. No audible distortion.
Just relentless, controlled bass—even at extreme levels.

💥 Built to move air
💥 Engineered to stay clean

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Sub-20Hz Authority

• Room-shaking extension down to 16.2Hz Or Less (room-dependent, the Pretium 18 reaches frequencies you don’t just hear—you experience.

• Tight, physical, and controlled low bass with zero bloat or overhang

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Smart DSP. Total Control

Summit HiFi’s advanced DSP platform offers professional-grade tuning flexibility.

Control Options:

• Wireless mobile app

• Integrated rear LCD touch panel

• Adjustable volume scale (absolute/relative)

• Backup & Restore Settings: Save and restore custom DSP configurations

• Firmware updates via app for future-proofed performance

Precision Tuning:

• Adjustable PEQ, crossover, and phase

• High-Pass & Low-Pass filters

• Selectable slope rates

• Variable phase adjustment & Polarity

• Delay Adjustment

• Adjustable voltage input for XLR and RCA

DSP Presets:

• Normal – Balanced and accurate

• Deep – Extended low-frequency authority

• Strong – Maximum punch and impact

• User – Fully customizable

🎯 Your room. Your system. Your sound.

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Built for Serious Systems

• Balanced XLR input

• Unbalanced RCA inputs & output pass-through

• Universal voltage power supply (110–230V)

• Handles for Moving: Built-in ergonomic side handles for easy transport

From studio-grade environments to reference-level home theaters, the Pretium 18 fits right in.

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Smart Power & Eco-Friendly

• Intelligent signal-sensing auto-standby system powers down when idle

• Adjustable sensitivity and shut-off timing ensure efficiency

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Home Theater or Music? Yes.

🎬 For Home Theater
Explosions hit harder. Soundtracks feel real. With sub-20Hz extension, the Pretium 18 delivers cinema-level impact with true physical presence.

🎶 For Music Lovers
Fast, tight, and controlled. Despite its power, Pretium remains musical—preserving texture, detail, and emotional engagement across every genre.

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Why Pretium?

Pretium is Latin for price, value, worth, and reward—a reminder that true performance isn’t measured by specs alone, but by what it delivers to the listener.

Most subwoofers excel at one.
Very few deliver both.

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Specifications — Pretium 18 Series

Performance

• Driver: Single 18” long-stroke, high-magnetic

• Power Output: 1200W RMS / 6000W peak

• Impedance: 4 Ohms

• Frequency Response: 16.2Hz – 220Hz (±5dB)

• THD: <2% @ 100Hz

DSP & Control

• Summit HiFi Advanced DSP Platform

• Wireless app control with firmware updates

• Rear LCD touch panel

• Adjustable 7-band PEQ, HPF, LPF & phase

• DSP Presets: Normal / Deep / Strong / User

• Subwoofer input level control

• Adjustable volume scale relative to absolute levels

• Backup & Restore for custom settings

• Adjustable voltage input for XLR and RCA

Connectivity

• Balanced XLR input

• Unbalanced RCA input

• Unbalanced output for pass-through

• Adjustable auto-standby

• Universal power supply: 110–115V / 60Hz, 220–230V / 50Hz

Cabinet & Dimensions

• Cabinet (W × H × D): 22.05" × 22.52" × 26.77"

• Packaging (W × H × D): 26.77" × 28.27" × 33.35"

• Net Weight: 122 lb

• Gross Weight: 141 lb

• Finish: Satin matte black lacquer

• Handles for Moving: Ergonomic side handles

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Elite Cabinet Construction & Finish

• Premium matte black lacquer for refined, uniform appearance

• Precision curved-edge geometry reduces diffraction

• Heavy-duty MDF construction with internal reinforcement & damping

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Driver Specifications

• Frame: Cast aluminum

• Voice Coil Diameter: 115mm

• Cone: Waterproofed semi-pressed paper

• Surround: Rubber

• Top Plate Thickness: 12mm

• Pole Piece Thickness: 16mm

• Effective Diameter: 380mm

• X-Max: ±26mm

• Maximum Displacement volume/Vd(L/dm3): 11.34

• Magnet Size: 253 × 25 × 2 mm

• Driver Weight: 48.72 lb

Warranty: 5 Years