REL HT/1003 MKII Subwoofer

The REL HT/1003 MKII subwoofer (aka The Hammer) offers Insane Performance at its Size and Price.  Buy an HT/1003 MKII if you either don’t have the space or don’t require the extra output of our larger models.

In Stock | Next Day Delivery Available


Description / REL HT/1003 MKII Subwoofer

About the REL HT1003 MKII

More compact, just as beautiful, it delivers identical build quality to its siblings. It’s style makes it an ideal partner in HT/3D REL theatre setups with Serie T/x.

All-new 300W Class D amplifier offers greater headroom and powers a new CarbonGlas™ 10” (250mm) driver. This combination delivers devastating output, playing TWICE as loud as the original. At this price, this performance is unheard of. The icing on the cake is that, like all the new HT’s, it responds beautifully when playing music, and HT-Air delivers state of the art (optional) wireless.

Higher Output

Perhaps the most dramatic update in the entire HT range is delivered by the remarkable HT/1003 MKII. In theatre, nothing impresses like raw output, even if you don’t use all of it. HT/1003 MKII’s increase in usable headroom confers an ease to the sound that lesser designs can’t compete with. Here, we realize a full 10 dB higher output (that’s twice as loud) over its forbear. As with its larger brothers, HT/1003 MKII receives the full suite of MKII upgrades. First, a higher secondary filter allows energy to extend further up the sonic spectrum means explosions are more savage than ever. Next, an all-analogue PerfectFilter™ lifts and extends the deepest bass. Additionally, an analogue subsonic filter filters out the signals that can lead to damage below 20Hz. All this is packaged in the same sexy, serious look that blends perfectly with our Serie T/x and S for use in HT-3D systems. Also, improvements to driver, amplifier, and filters means this latest version is now a seriously musical sub.

Key Features

  • Full 10 dB higher output (that’s twice as loud) over its forbear.
  • 10” (250mm) CarbonGlas driver 
  • New Cabintry - The eye is immediately drawn to the top panel, which is finished in 5 coats of hand-polished piano black lacquer. 
  • HT-Air - Being wired for sound used to require long runs of cable strewn across the floor. 


Lead Time In Stock | Next Day Delivery Available........
Colour Black
Manufacturer Rel Acoustics
Frequency Response -6dB at 24 Hz
Amplifier Power Output 300 W
Drivers Unit Complement 10 in., 250mm long-throw, CarbonGlas™ cone structure, inverted carbon fibre dust cap, steel chassis
Power Supply 100-240VAC 50/60Hz
Power Usage max: 375W / Stationary: <1W
Width 318 mm
Depth 347 mm
Product Height 351 mm
Weight (Kg) 15.1
Warranty 3 Year Warranty
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