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Category: Subwoofer

REL HT/1003 - 10 Inches Active Subwoofer

Key Features

  • 10-inch long-throw driver with CarbonGlas cone for deep and accurate bass.

  • 300-watt RMS Class D amplifier providing strong output and dynamic performance.

  • Sealed enclosure design for tight, controlled, and precise low-frequency response.

  • Bass extension reaching down to approximately 24 Hz for impactful low end.

  • RCA low-level and LFE inputs for easy connection to AV receivers or stereo systems.

  • Daisy-chain output for connecting multiple subwoofers in larger setups.

  • Adjustable crossover (approx. 30–200 Hz), volume control and 0°/180° phase switch for precise tuning.

  • Auto-standby mode activates the subwoofer only when a signal is detected.

  • Compact cabinet design suitable for small to medium-sized rooms.

  • Compatible with optional wireless module for flexible placement without long cables.

Description

  •  HT/1003

    For when there is simply neither the space nor the need for all the output of a larger HT model. HT/1003 applies the same approach as its impressive stablemate and scales it down by just a little. 10” high-powered, long-throw driver and 300W means it has plenty of power on demand. This unit is intended primarily for high-powered home theater applications, immersive gaming set-ups, and pairs nicely with active powered loudspeakers. Scaled down design, up-sized performance.

    Compact Power & Punch

    ACCESSIBLE HOME THEATER

    Our home theater-focused Serie HT line is designed specifically to answer the challenge of affordably priced, highly dynamic pure home theater powered subwoofers in a handsome, compact package that makes it easy to tuck a few of these into most environments. The HT/1003 combines a lightweight, modern 10” CarbonGlas™ (250 mm) driver, coupled to a powerful 300W Class D amplifier that runs cool, producing startling dynamics. Internally, we designed specially adapted home theater input filters that produce extremely flat bass down in the 20s.

    We set out to build the loudest, relatively compact, affordable 10” unit available for pure home theater use. Critics are already lining up for reviews. The HT/1003 is designed to deliver the best bang (quite literally) for your buck when building a home theater system, featuring: crisp 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 Serie T/i or S subwoofers designed for both 2-channel and theater use, the HT/1003 is designed to supplement their system’s .1/LFE output to produce even higher output, adding further depth to special effects to provide a true home theater experience. If you own a REL and want theater to be wildly dramatic, add in an HT (or a few).

    Purpose Built

    BRING ON THE SPECIAL EFFECTS

    HT/1003 delivers a tough, honest, purpose-built appearance designed to communicate its sole mission: extremely high output home theater at bargain pricing. The cabinet’s width is minimized, reducing visual mass, whilst depth is maximized to produce the deepest bass. We selected a tough, high-grade, horizontally oriented line-grained composite to wrap the entire cabinet. Easily handled, easily cleaned. Yet, the top surface that one’s eye sees is beautifully finished in 5 coats of hand-rubbed lacquer, creating the visual appeal we’ve come to be known for.

    Speed & Slam

    TEN-INCH CARBONGLAS™ DRIVER

    REL’s driver prowess is on full display with the HT/1003, a modern 10” CarbonGlas™ (250mm) driver that is both lightweight and extremely stiff. While many competitors drone along with relatively slow, heavy cones, HT/1003 uses tough, stiff carbon fibre over 60% of the driven surface, backed by lightweight glasfibre. Naturally, we use true high-quality natural butyl surrounds as they remain soft and pliable for decades—something REL owners have come to expect. We believe the new 10” CarbonGlas driver sets a new standard for affordable, high-performance theater-specific drivers.

    Smart Power

    PUNCHING BEYOND ITS WEIGHT CLASS

    300 Watts: To accomplish our single-minded goal of exceedingly high output for large-scale theater in such a compact footprint requires a special amplifier. Our NextGen5 Class D amplifier frees up interior space whilst running cool; this results in more cabinet volume, and that translates into ultra-deep bass despite its modest footprint. 300 watts means the driver is never starving for power, ensuring high output, delivered effortlessly in a long-running, reliable design. Within HT/1003’s input filter, we designed specific inverse filtering to permit our CarbonGlas driver to extend much deeper than conventional designs.

    HT-Air™

    ZERO COMPRESSION WIRELESS COMPATIBLE

    There is wireless, and there is REL wireless. We are well-known for having the finest wireless, purpose-built systems in the component audio world. Though HT-Air™ is affordable, it retains our corporate fixation on zero compression and maximum dynamics. HT-Air is designed to leave old-fashioned Bluetooth-based systems in the dust, delivering latency in the 16-20 millisecond range. This permits owners to place their HT model wherever it works best for them without resorting to unsightly cables being strewn across the landscape of their living room.

     Specifications

    TYPE
    Closed box, front-firing driver
    ACTIVE DRIVER SIZE & MATERIAL
    10 in., 250mm long-throw, CarbonGlas™ cone structure, inverted carbon fibre dust cap, steel chassis
    PASSIVE RADIATOR SIZE & MATERIAL
    NA
    LOW FREQUENCY EXTENSION
    -6dB at 24 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
    300 watts (RMS)
    AMPLIFIER TYPE
    NextGen5 Class D
    WIRELESS CAPABILITY
    HT Air Wireless (Optional), Zero Compression Single Large Scale Integrated Chip
    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
    6.3 Amp semi delay 230 or 115 volts operation
    W X H X D
    12.5 x 13.7 x 13.8 in. (318 x 347 x 351 mm)
    NET WEIGHT
    33.3 lbs. (15.1 kg.)
    MAINS LEAD
    Yes
    NEUTRIK SPEAKON
    NA
    INTERCONNECT
    No
    USERS MANUAL
    Yes

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