REL Acoustics HT/1205 MKII

12" Powered Subwoofer

REL Acoustics HT/1205 MKII

12" Powered Subwoofer
$899.00
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Overview

HT/1205 MKII establishes a new performance standard for affordable home theater subwoofers. Avoiding electronic gimmickry in favor of properly balanced priorities; cabinets that are right-sized, solidly braced, and beautifully finished. A sparkling new amp design that effortlessly delivers 500W into an all-new CarbonGlas 12” (300mm) driver.

Performance Home Theater

Serie HT is designed specifically to answer the challenge of creating affordably priced, exceptionally dynamic, pure home theater powered subwoofers. The HT/1205 MKII is the ideal combination of a lightweight, modern 12” CarbonGlas™ (300mm) driver coupled to a powerful 500W Class D amplifier that runs cool, producing extraordinary dynamics. Internally, REL developed specially adapted home theater input filters that produce extremely flat bass down in the 20’s.

REL set out to build the loudest, relatively compact 12” unit available for pure home theater use, and at truly attractive pricing. You’ll be the judge of how well they accomplished that goal, but critics are already lining up for reviews. The HT/1205 MKII is destined to become a modern classic with svelte cabinet dimensions finished in an attractive, yet purposeful line grained black aluminum-look and topped by a 12mm thick beautifully polished top that serves to damp vibrations on the critical top surface of the cabinet.

For REL owners already enjoying our Reference, Serie S and T/i subwoofers designed for both 2-channel and theater use, the HT/1205 MKII is designed to supplement their system’s .1/LFE output to produce extremely high output for chest rumbling home theater special effects.

Designer Exterior

The beautiful new cabinetry is bespoke; it has new textures, proportions, and finishing touches previously unseen in the category. Lower, sleeker cabinetry borrows proportions drawn from the new Reference models. Over the years, REL's experiments have established that this results in a faster, deeper presentation of bass—all while looking smashing. Your eye is immediately drawn to the top panel, whose entire surface finished in 5 coats of hand-polished piano black lacquer. A discreet REL logo floats within the top layer of lacquer while the body of the cabinet is clad in horizontally streaked, line-grained composite. The entire affair looks expensive, bespoke, and tastefully restrained. Additionally, you can stylishly combine it with either Serie T/x or Serie S in large, fully-immersive REL HT/3D™ setups.

Drive Like You Mean It

The HT/1205 MK II’s driver is a 12” (350mm) CarbonGlas™ construct as it has always been, but all its components were beefed up. It is improved in both large and small ways, enabling it to deliver the greatest performance possible. Lightweight, stiff, and quiet, the combination of glass fiber primary cones with true carbon fiber center caps results in a cost-effective yet pistonic cone. Larger, more powerful magnets produce more energy. Upgraded suspension designs control the HT/1205 MKII’s output all the way out to the limits of both the amplifier and the driver. The result is crazy output, while the HT/1205 MKII remains fast and liquid.

Now Hear This!

Amplifiers do the heavy lifting in a theater subwoofer. REL turned to a true tier one amp supplier to build their latest design and they did not disappoint. They included thicker boards, upgraded the power supplies, and did all the stuff that results in a brutally powerful amp with remarkable longevity. Additionally, the MOSFET power modules rated at 800 watts mean this amp is just cruising at its 500-watt rating. It produces truly awe-inspiring sound. While the theater gets all the headlines, the HT/1205 MKII’s big secret is that it sounds sublime in musical applications. Big and robust-sounding, it is sure to become an instant classic.

PerfectFilters™: Where it All Starts

REL input filters are renowned throughout the audio world. They bring together ultra-fast crossovers, elevation filters that extend the flatness of deep bass, and explosive-sounding integrated limiters. This compact series of analog circuits is REL’s secret recipe in both music and film sound. Refined in this second generation, the secondary filters are much higher in frequency; they make the rarefaction of air in the sound of an explosion to feel that much more realistic. Also, our latest circuit includes an all-analog subsonic filter that begins as low as 8 Hz to minimize the effects of infra-noise from soundtracks that extends well below the resonance point of the driver. The result is incredible delivered power with the ability to play all the way to the driver’s limit without distortion.

Wired For Sound: HT-Air

Wired for sound used to entail long runs of cable strewn across the floor. With the optional HT-Air™, great sound has become “un-wired.” Wire has been replaced by a tiny transmitter and matching receiver that sends an incredibly fast 5.8Ghz wireless signal up to 60 feet with no digital compression. This affordable circuit includes the same LSIC chip that powers their state-of-the-art AirShip II, minus the expensive analog-to-digital and digital-to-analog (DAC) convertors. The HT-Air is perfect for the .1/LFE signals using RCA connectors that are HT/1205 MKII’s primary mission.

Details & Specs

Specifications
Type Closed box, front-firing driver
Driver Size and Material 12 in., 300mm long-throw, CarbonGlas™ cone structure, inverted carbon fiber dust cap, steel chassis
Passive Radiator Size and Material N/A
Low Frequency Extension -6dB at 22 Hz
Input Connectors Dual purpose Low Level stereo RCA or LFE RCA
Output Connectors Daisy Chain Low Level stereo RCA or LFE RCA
Power Output 500 watts (RMS)
Amplifier Type NextGen5 Class D
Wireless Capability HT Air Wireless (Optional), Zero Compression Single Large Scale Integrated Chip
Dual Parametric Filter N/A
Protection System
Fully Electronic Set Safe Yes
D.C. Fault Yes
Output Short Yes
Mains Input Voltage 220-240 volts, 110-120 volts for certain markets
Fuses 4 Amp semi delay 230b, 4 Amp semi delay 115b operation
Dimensions
W X H X D 16.25 in. x 15.25 in. x 17.25 in.
413mm x 387mm x 438mm
Net Weight 43.2 lbs
19.6kg
Finish Horizontally Oriented Lined Grained Black Composite Cabinet, 15mm Top Plate, finished in 5 coats of Hand rubbed High Gloss Black Lacquer
Supplied Accessories
Mains Lead Yes
Neutrik Speakon N/A
Interconnect No
User Manual Yes

Reviews

Customer Reviews

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t
the legend
1205 supwoofer

i have two 1205 with my marantz cinema 40 These break the dishes. With music, you don't even dance, you just shake. I'm buying 2 more.