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The Revel B12 Active Subwoofer Revel has established an enviable reputation for designing some of the finest loudspeakers available. Sharing technology from the Ultima and Performa series loudspeakers, the new Concerta B12 is a compact active subwoofer, capable of exceptional control, dynamics and output. Using the highly regarded Performa B-15 subwoofer as a reference, Revel has designed a more compact version for the Concerta range. A proprietary 10” anodized aluminium driver combines with a 650W amplifier to ensure that the original pace and dynamics of a recording are preserved. Integration is always vital to the performance of a multichannel system. The B12 provides a wide array of controls, including parametric equalization, allowing for flexibility in speaker choice and subwoofer placement. Dedicated LFO™ software enables fast and accurate set up of the B-12 in virtually any environment. In keeping with all Concerta models a braced cabinet enhances the integrity of the B12’s design. The B12 is available in three high quality vinyl finishes: Maple, Cherry, and Black Ash

SPECIFICATIONS.
Overview:
High Power Active Subwoofer

Applications:
Home Theatre and Stereo Installations

Driver Design:
LF 1 x 250mm Aluminium Alloy Cone Driver

In-Room Frequency Response:
28Hz to fc ±3.0dB

Low frequency extension:
–3dB @ 28Hz (Up To Full Rated Power)

Amplifier Section:
Output power: At least 650W rms

Low Pass Filter:
50Hz - 175Hz (24db per Octave) Phase: 0 or 180° Level: Continuously variable

Line Level Inputs:
1 x Stereo Unbalanced (RCA)

Features:
Auto-On (Signal Sensing)

High Quality Vinyl Finishes:
Cherry, Maple, Black Ash

Dimensions:
W 33.5cm x H 36cm x D 40.5cm (Including Feet)

The Performa B15a Subwoofer The Performa B15a subwoofer features unique Revel advantages that no other subwoofer provides, for authoritative low frequency reproduction. Featuring a massive longexcursion, 15-inch driver that is equipped with an inverted metal dome that delivers incredible acoustic output at the very lowest deep bass registers, the B15a’s prodigious deep bass capabilities will do justice to the most explosive movie soundtracks, as well as the newest generation of high resolution music formats, such as DVD-Audio and Super Audio Compact Disc (SACD). A built-in 1,000-watt power amplifier featuring a tremendous 40% reserve capacity powers the 15-inch driver, delivering up to 1.4 kilowatts to handle the most thunderous special effects and the lowest musical octaves. Revel’s extensive research into room acoustics has revealed that even a theoretically ideal subwoofer would fail to provide accurate deep bass response due to the fact that the mere placement of the subwoofer within the confines of any listening room introduces significant and degrading response variations caused by room-induced resonances. Conventional subwoofer crossover frequency and level controls alone cannot compensate for these inevitable and inescapable timbre response irregularities. Therefore, the Performa B15a subwoofer is equipped with a sophisticated tuning system featuring a three-band parametric equalizer that allows room-induced resonance peaks to be tamed. This smoothes the response dramatically and delivers tuneful and musical low bass reproduction without the boomy and irritating “one-note” bass response typical of conventional subwoofers. Fully adjustable high- and low-pass filters with adjustable slopes are also provided to allow the B15a to seamlessly mate with virtually any combination of loudspeakers with adjustment flexibility beyond what is typically provided in surround processors. The B15a also includes adjustable spikes for different floor types and is available in a choice of elegant real-wood finishes: Natural Cherry, Maple or Black Ash.

Low Frequency Extension: -3 dB @ 18 Hz (up to full-rated power)

In-room Frequency Response: 20 Hz to f c ±0.5 dB, - 3 dB @ 18 Hz

True Linear Volume Displacement: 275 inches cubed

Dimensions: width: 17.75" (45cm)

height: 20.062" (51cm)

depth: 18.312" (46.5cm) including grille

Spikes add 1.5" (3.8cm) to height

Shipping Weight: 110 lbs. (49.9 kg) net (without packing, includes amplifier)

Output Power: At least 1,000 W rms , 1,400 W peak

Equalization: Type: Three independent parametric equalizers

Frequency: Continuously variable from 18 to 80 Hz

Bandwidth: Continuously variable from 0.1 to 1 Octave

Level: Continuously variable from -14.5 to +6 dB

Low-Pass Filter: Type: Low pass with ON/OFF switch

Slope: Selectable 24 or 48 dB per octave

Frequency: Selectable at 30, 40, 50, 60, 70, or 80 Hz

Phase: Continuously variable from 0 to 180°

Level: Continuously variable ,p> High-Pass Filter: Type: High pass, always on

Slope: Selectable 12 or 24 dB per octave

Frequencies: Selectable at 30, 40, 50, 60, 70, or 80 Hz

Inputs: Left and right balanced (XLR) and unbalanced (RCA) line level

Outputs: Left and right balanced (XLR) and unbalanced ,p> (RCA) high-pass line level to main amplifier

Left and right balanced (XLR) and unbalanced

(RCA) line level to auxiliary components

Power: 120 V ac @ 60 Hz, 720 W rms with 10 A fuse

240 V ac @ 50 Hz, 720 W rms with 5 A fuse

Switch: OFF or AUTO-ON