RBH UNRIVALED 221 – Dual 21" Passive Subwoofer + DA-2602DSP Amplifier

RBH Sound UNRIVALED 221 – Subwoofer System

Ready to rock the neighborhood? There’s nothing quite like experiencing a dual 21-inch subwoofer with nearly 119dB at 20Hz. The UNRIVALED 221 is built like a tank with double-thick HDF walls and G.A.D.S. technology, resulting in tight and accurate output with commanding authority. Double the drivers, twice the fun.

• (2) 21″ (533mm) Long-Throw Sandwiched Carbon Fiber Cone Drivers
• Sealed Enclosure with Double-Walled HDF Construction
• 10 – 100 Hz (±0.5 dB) Frequency Response
• 92 dB Sensitivity
• 4 Ω + 4 Ω Impedance
• Recommended Amplifier Power: 2000 – 8000 Watts
• Powered by Single or Dual DA-2602DSP Amplifiers
• XLR Input/Output with Variable Phase
• Variable Crossover (6 – 48 dB/Octave)
• Heavy-Duty Outriggers
• 505 lbs (229 kg) Weight
• Designed, Engineered, Tested and Assembled in USA
• 10 Year Limited Warranty (3 Year on Electronics)

Highlights & Key Technologies

Infrasonics Exemplified
There’s nothing quite like experiencing a dual 21-inch subwoofer with nearly 119dB at 20Hz. The UNRIVALED 221 is built like a tank with double-thick HDF walls and G.A.D.S. technology, resulting in tight and accurate output with commanding authority to command your theater experience.

Dual 21″ Sandwiched Carbon Fiber Cone Drivers
The 21″ proprietary driver was co-engineered by RBH Sound and Pierce Audio. This groundbreaking, low-distortion design, made exclusively for RBH, features a sandwiched carbon fiber cone, shorting cap, copper sleeve, and custom machine work, with two long-throw 21″ drivers delivering unbelievable low-frequency output. Pierce Audio, a privately held company, has built precision subwoofer and speaker drivers by hand in the Pacific Northwest since 2004, innovating and engineering high-quality, resilient subwoofer and speaker drivers for most any application.

Powered by DA-2602DSP Amplification
Powered by single or dual DA-2602DSP amplifiers, delivering up to 4000 watts each, the UNRIVALED 221 delivers a performance that is felt and heard. The result of mating it to the calibrated 4000-watt output DA-2602DSP amplifier is a visceral, seismic, impactful experience.

G.A.D.S. Technology
The Granular Acoustic Damping System offers mass-loading benefits to keep the cabinet stable with high-powered drivers, while offering acoustic absorption at the lowest of frequencies.

Double-Walled HDF Enclosure
The UNRIVALED 221 is built into a double-walled, heavily braced High-Density Fiberboard (HDF) enclosure with double-thick walls, providing the rigidity needed to harness and control the power of its dual drivers.

Linear Response
An incredibly linear response throughout the bandwidth delivers accurate reproduction.

Details & Specifications

TECHNICAL SPECIFICATIONS
Model Name: UNRIVALED 221
System Type: Freestanding Subwoofer
Series: UNRIVALED
Frequency Response: 10-100Hz (±0.5dB)
Sensitivity / Amplifier Power: 92dB / 4000 or 8000 watts
Impedance: 4Ω + 4Ω
Recommended Power: 2000-8000 Watts
Crossover Frequencies: Variable
Crossover Slope: 6-48dB/Octave

AMPLIFICATION
Powered by single or dual DA-2602DSP amplifiers, delivering up to 4000 watts each

DRIVER
Drivers: (2) 21″ (533mm) Carbon Fiber Cone
Design: Sandwiched carbon fiber cone with shorting cap, copper sleeve, and custom machine work
Co-Engineering: RBH Sound and Pierce Audio

CABINET
Enclosure: Double-Walled HDF, Sealed
Acoustic Damping: G.A.D.S. (Granular Acoustic Damping System)
Finish: Satin Black or White
Grille: Magnetic beauty-baffle and fabric grille included

CONNECTIONS & CONTROL
Features: XLR Input/Output, Variable Phase

PHYSICAL
Dimensions (H x W x D): 27-1/4″ x 56″ x 21″ (692 x 1422 x 533mm)
Weight: 505 lbs (229 kg)
Outriggers: Heavy-duty outriggers included
Country of Origin: Built in the USA

WARRANTY
Warranty: 10 Year Limited, 3 Year on Electronics