HT/1508 Predator

Serie HT


Serie HT/1508 Predator™ is the standard bearer for REL’s rapidly growing home theatre-centric range of HT subs designed to emphasize exceptionally high output. Featuring a CarbonGlas™ 15” (380 mm) driver with fully 3” (150 mm) of fore-and-aft stroke, driven by a powerful 800w amplifier. Powerful, whilst remaining relatively compact, Predator is a game changer in the realm of large-scale theatre.

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Redefining Power and Value

Predator is devastating when used in dedicated high powered home theater applications, but also transforms the serious gamer’s experience and partners beautifully with active wireless speakers for music reproduction. HT/1508 is a unique combination of lightweight, modern 15” CarbonGlas™ (380mm) driver, coupled to a powerful 800W linear power supply amp that runs cool, producing extraordinary dynamics and consumes merely 20 watts at idle. Internally, we developed specially adapted home theater input filters that produce extremely flat bass down into the low 20’s.

We designed the driver of the 1508 to be light and accurately reactive; theatre sound can and should be at times light, playful, funny and at times terrifying or awe-inspiring. Deep bass that reacts quickly and effortlessly to these changes during a film creates a much more satisfying experience of the medium than typical theatre subs can supply.

As with the entire HT range, Predator’s industrial design wastes nothing on ornamentation for its own sake and delivers a simple, yet satisfying, design that borrows themes of line-grained aluminium contrasting with a sophisticated, polished top surface. Instead of mere feet, Predator uses full depth rails necessary to better cope with the force it produces.


Design Is Everything

We’re known for building beauty in a category not known for it. But our designs do more than look good, substance integrates throughout Predator. If you see a design element, it accomplishes a function as well as delivers style. The 25mm top plate, beautifully finished in 5 coats of hand-rubbed lacquer, serves to damp vibration in the cabinet below. Within, a massive windowpane brace damps both side and inner cabinet walls, yet also does double duty supporting the heavy magnet of the driver. And the attractive (but easily wiped clean) cabinet surface looks like expensive line-grained aluminium, but instead is a tough, sexy composite that serves to keep costs reasonable.


Size Still Matters

At 15” and sporting 3” of fore and aft stroke, the core of Predator’s amazing performance centers around its driver. Film sound and music both benefit from quickness; fast drivers result in accurately tracing music’s peaks or a movie’s explosive special effects with equal facility. Using a bonded composite of lightweight glass fibre for the cone’s body with an ultra-light carbon fibre center mass, REL’s designers have been able to pare excess weight away. The 1508’s cone weighs far less than our 10” driver of just a few short years ago. And this driver is built to last, with high quality materials throughout such as natural butyl surrounds that won’t dry out and fail like foam surrounds can.


Power Corrupts

800 Watts Corrupts Beautifully

Some may wonder why so much power is needed, but 800 watts RMS loafing along means Predator is rarely stressed. When the scene demands, having more than enough power means that the incredible output levels are delivered safely without risk of damage. The amplifier actually outputs peaks of around 1200 watts which makes for massive output. A traditional power supply is used with a huge 1.2KW transformer coupled to a Class D output stage meaning it runs efficiently. Predator demands only 20 watts of power consumption at idle; so little that most will simply leave it on all the time but when on holiday.

Stand and Deliver

HT/1508 Predator offers one more uniquely REL innovation. For truly over the top performance, Predators are designed to be stacked up to three (3) units high using included REL Couplers™ that connect lower units to upper units. These solid, milled aluminium couplers bolt securely to each sub and along with the substantial rails on the underside of each cabinet create an extremely heavy, sturdy tower of bass. When used in stereo stacks (6 total, 3 per side) it represents over 7000 watts of peak power forcing (6) x 15” drivers to give their utmost in the service of breathtaking bass delivered in oceanic torrents of bass.

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There is wireless and there is REL wireless. We are well-known for having the finest wireless purpose-built systems in the entire component audio world. Though HT-Air™ is affordable, it retains our corporate fixation on zero compression and maximum dynamics delivered via a 5.8 gigahertz network. 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/1508 Predator where it works best for them without resorting to unsightly cables being strewn across the landscape of your living room, all while retaining our category-leading super-fast wireless.

Customer Reviews

Based on 5 reviews

Owned many different subs over the past 20+ years. Last sub I owned was a SVS PB Ultra. It delivered qty, but no quality. Considering i already owned 3 REL subwoofers before, remembering their quality, I decided to give the HT1508 a go. I haven't enjoyed movies this much in years. Have never heard a driver this size being so fast and accurate. I didn't expect it to pressurize my room as it does. It is worth every penny. Great job REL.

Finally! Predator’s hunting!

I first need to thank REL for straightening out my issue with FedEx. Their customer service really came through!!
And the sub absolutely delivers. I had a HSU research giant sub before that started rattling after a little more than a year. This gave me a reason to upgrade immediately; I had wanted a REL for some time. The Predator fits much better in the room, and absolutely pressurizes the space. The best thing is that the bass is much tighter, precise, and tuneful; my volume levels stayed the same, but it seems that the whole system plays louder, with more detail now. I feel that I really got what I paid for and more, something you can’t always say in the world of audio.


I have to say I only own 2 when it went on sale last year and been using them for over a year now and its just keeps on blowing my mind I live in an apartment complex now, before was a house. These subwoofers are amazing, they just leave me speechless with how effortlessly they put out clean deep bass when I put on a movie or listen to heavy bass music. All I gotta say is am glad I bought them when I did, iv been trying to convince people to get this subwoofer but it will not disappoint.

Amazing unit

Finished my line-array 2 weeks ago and couldn't be happier. One was good but I needed two because the size of the space. Hearing John talk about the effect one would achieve with the third one top I just couldn't resist the idea. Not disappointed. Not one bit. Go for the line-array. It's worth it! Amazing deep bass and incredible headroom.

Awesome addition!!

Great performer. Simple set up. HUGE soundstage. Replaced 10” REL sub with this one and couldn’t be happier.

HT/1508 Predator

Suggested Retail: $1,799

Serie HT/1508 Predator™ is the standard bearer for REL’s rapidly growing home theatre-centric range of HT subs designed to emphasize exceptionally high output. Featuring a CarbonGlas™ 15” (380 mm) driver with fully 3” (150 mm) of fore-and-aft stroke, driven by a powerful 800w amplifier. Powerful, whilst remaining relatively compact, Predator is a game changer in the realm of large-scale theatre.



Closed box, front firing driver

Active Driver Size & Material

15 in., carbon fiber reinforced cone with inverted carbon fiber centre cap

Passive Radiator Size & Material

Low Frequency Extention

-6dB at 21Hz

Input Connectors

Low Level stereo RCA, LFE RCA, LFE XLR

Output Connectors

Low Level stereo RCA, LFE RCA, LFE XLR

Power Output

800 watts (RMS)

Amplifier Type

Class D

Wireless Capability

HT Air Wireless (Optional), Zero Compression Single Large Scale Integrated Chip

Protection System

Fully Electronic Set Safe


D.C. Fault


Output Short


Mains Input Voltage

220-240 volts, 110-120 volts for certain markets


8 Amp semi delay 230 volts operation, 15 Amp semi delay 115 volts operation


W x H x D

19.7 x 18 x 19.4 in. (500 x 457 x 492 mm)

Net Weight

79.4 lbs. (36 kg)


Black Vinyl

Supplied Accessories

Mains Lead


Neutrik Speakon




Users Manual


In the interest of product development, REL Acoustics Limited reserve the right to vary these specifications without notice.