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    <title>REL Acoustics  from HifiSound</title>
    <link>http://www.hifisound.co.uk/rss/1/productlistings_rss/m142::sound:systems</link>
    <description></description>
    <copyright>Copyright 2026 HifiSound</copyright>
    <language>en</language>
    <lastBuildDate>Thu, 08 Oct 2026 17:26:43 +0100</lastBuildDate>
    <pubDate>Thu, 08 Oct 2026 17:26:43 +0100</pubDate>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics Planar PL-1 Subwoofer</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/planar-pl-1-subwoofer-p6936"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/planar-pl-1-subwoofer-p6936-45716_thumb.jpg" alt="REL Acoustics Planar PL-1 Subwoofer"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/planar-pl-1-subwoofer-p6936">REL Acoustics Planar PL-1 Subwoofer</a></p>
<p>The REL Acoustics Planar PL-1 redefines the modern subwoofer, proving that exceptional sonic performance doesn&#039;t have to compromise your living space. By harnessing the power of boundary effect coupling, the PL-1 works seamlessly with your wall rather than fighting it. The result? Deep, articulate, room-filling bass delivered from an ultra-thin cabinet that blends beautifully into any decor. Instead of demanding compromises from your room, the Planar PL-1 effortlessly transforms it.
Key Features:

2 x Front-firing active woofers(2) 6.5in. (165mm) FibreAlloy cone, long-throw, steel chassis
1 x Rear-firing passive radiator -&amp;nbsp;10in. (250mm) FibreAlloy cone, steel chassis
-6 dB at 31 Hz, in room
High-Level Neutrik SpeakOn, LOW-LEVEL RCA, LFE RCA Input connectors
300 watts (RMS)
Airship Direct Wireless capable
</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/planar-pl-1-subwoofer-p6936</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/planar-pl-1-subwoofer-p6936</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics Airship Direct Wireless Transmitter</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/wireless-c112/airship-direct-wireless-transmitter-p6786"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/airship-direct-wireless-transmitter-p6786-44584_thumb.jpg" alt="REL Acoustics Airship Direct Wireless Transmitter"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/wireless-c112/airship-direct-wireless-transmitter-p6786">REL Acoustics Airship Direct Wireless Transmitter</a></p>
<p>Airship Direct™ is the purest expression of REL&#039;s zero-compression wireless technology. It plugs directly into the new Serie S amplifier, completely eliminating the need for RCA cables, external power supplies, and extra boxes. This delivers effortless setup and truly un-compromised performance.
Key Features:

Direct-connect wireless for the new Serie S subwoofers
Zero-compression, ultra-low latency signal
Eliminates RCA cables, power supplies, and receiver boxes
Effortless plug-and-play setup
Supports Stereo Pairs and Line Arrays

&amp;nbsp;</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/wireless-c112/airship-direct-wireless-transmitter-p6786</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/wireless-c112/airship-direct-wireless-transmitter-p6786</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics S/550 Subwoofer</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-550-subwoofer-p6743"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/s-550-subwoofer-p6743-44072_thumb.jpg" alt="REL Acoustics S/550 Subwoofer"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-550-subwoofer-p6743">REL Acoustics S/550 Subwoofer</a></p>
<p>Experience a perfect blend of power and precision with the S/550. Inside its compact cabinet, a 550-watt Pure Class D amplifier drives advanced CarbonAlloy™ drivers to deliver breathtaking speed, scale, and dynamics.
The S/550 is the essential gateway to the REL Serie S line, delivering the speed, depth, and nuance that defines REL&#039;s performance. While its larger sibling, the S/850, is the ultimate benchmark, the S/550 carries forward key innovations into a more compact form.
The result is remarkable, lightning-fast transients, deep articulate bass, and tonal balance that brings music and film to life. Its blend of authority and refinement makes it ideal for true high-end performance in medium-sized systems, consistently exceeding expectations.
Key Features:

550-watt Pure Class D Amplifier
10&quot; CarbonAlloy™ Active Driver with 12&quot; Down-Firing Passive Radiator
Music &amp;amp; Theater Systems, Medium Rooms
Stereo Pairs &amp;amp; Line Arrays
Optional Premium Wood Grille Available. As a natural wood material, grain and colour variations are expected and unique to each grille

&amp;nbsp;</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-550-subwoofer-p6743</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-550-subwoofer-p6743</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics S/850 Subwoofer</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-850-subwoofer-p6742"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/s-850-subwoofer-p6742-44042_thumb.jpg" alt="REL Acoustics S/850 Subwoofer"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-850-subwoofer-p6742">REL Acoustics S/850 Subwoofer</a></p>
<p>Built for the serious listener, the S/850 pushes the boundary of the Serie S line. It features an 850-watt Linear Class D amplifier powering advanced CarbonAlloy™ drivers, integrating key innovations from our Reference series. The fusion of power and advanced engineering grants the S/850 the ability to deliver both explosive dynamics and remarkable tonal refinement.
Key Features:

850-watt Linear Class D Amplifier
12&quot; CarbonAlloy™ Active Driver with 12&quot; Long-Stroke Passive Radiator
Music &amp;amp; Theater Systems, Medium-to-Large Rooms
Stereo Pairs &amp;amp; Line Arrays
Optional Premium Wood Grille Available. As a natural wood material, grain and colour variations are expected and unique to each grille
</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-850-subwoofer-p6742</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/s-850-subwoofer-p6742</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics Carbon Special Black Label</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/carbon-special-black-label-p6741"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/carbon-special-black-label-p6741-44030_thumb.jpg" alt="REL Acoustics Carbon Special Black Label"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/carbon-special-black-label-p6741">REL Acoustics Carbon Special Black Label</a></p>
<p>The Carbon Special Black Label represents the pinnacle of the Serie S range within a medium-footprint enclosure. It houses a 12-inch, all-carbon fibre driver—a technology directly descended from our flagship No.31 Reference. A more potent amplifier and enhanced cabinet volume work together to produce sound with exceptional authority, dynamic range, and precision.
Key Features:

900-watt Linear Class D Amplifier
12&quot; Carbon Fibre Active Driver with 12&amp;rdquo; Down-Firing Passive Radiator
Precision-Engineered Cabinet and Driver for Power, Speed, and Scale
Stereo Pairs, Line Arrays, and Theater Integration
Premium Wood Grille Included. As a natural wood material, grain and colour variations are expected and unique to each grille
</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/carbon-special-black-label-p6741</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/carbon-special-black-label-p6741</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics 212 Black Label</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/rel-acoustics-212-black-label-p6740"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/rel-acoustics-212-black-label-p6740-44011_thumb.jpg" alt="REL Acoustics 212 Black Label"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/rel-acoustics-212-black-label-p6740">REL Acoustics 212 Black Label</a></p>
<p>The 212 Black Label stands as the definitive, most powerful expression in the Serie S line. It achieves its reference-grade performance using four 12-inch drivers—offering over 450 square inches of surface area—powered by a 1,000-watt amplifier. This sheer scale makes it the ideal anchor for the largest stereo systems and home theatres. However, its true value lies in its versatility: it is expertly engineered to resolve the acoustic challenges of the most difficult rooms and integrate seamlessly into the most demanding high-fidelity systems. The 212 Black Label redefines the standard for performance within the Serie S, offering an unmatched combination of scale, speed, and authority.
Key Features:

1,000-watt Linear Class D Amplifier
Dual 12&quot; CarbonAlloy™ Active Drivers with Dual 12&amp;rdquo; Passive Radiators
Extraordinary Scale and Dynamics, Approaching Line Array Performance
Stereo Pair and Large-Scale Theatre Integration
Optional Premium Wood Grille Available. As a natural wood material, grain and colour variations are expected and unique to each grille
</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/rel-acoustics-212-black-label-p6740</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/rel-acoustics-212-black-label-p6740</link>
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              <pubDate>Tue, 11 Aug 2026 12:46:03 +0100</pubDate>
              <title>REL Acoustics HT/1003 MKII Subwoofer</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1003-mkii-subwoofer-p5583"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/ht-1003-mkii-subwoofer-p5583-33558_thumb.jpg" alt="REL Acoustics HT/1003 MKII Subwoofer"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1003-mkii-subwoofer-p5583">REL Acoustics HT/1003 MKII Subwoofer</a></p>
<p>If you&#039;re short on space or do not need the extra output of larger models consider the REL HT/1003 MKII&amp;nbsp;. It&#039;s more compact, equally beautiful, and offers the same build quality as its counterparts. Its design makes it an ideal companion for HT/3D REL theatre setups with Serie T/x.
Equipped with an all-new 300W Class D amplifier, it provides increased headroom and drives a new CarbonGlas™ 10&amp;rdquo; (250mm) driver. This combination yields remarkable output, delivering twice the volume of the original. The performance it offers at this price point is unparalleled. Additionally, like all the REL HT models, it delivers exceptional music playback, and the optional HT-Air feature offers cutting-edge wireless connectivity.</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1003-mkii-subwoofer-p5583</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1003-mkii-subwoofer-p5583</link>
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              <pubDate>Tue, 11 Aug 2026 12:42:25 +0100</pubDate>
              <title>REL Acoustics HT/1510 Subwoofer</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1510-subwoofer-p4678"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/ht-1510-subwoofer-p4678-38145_thumb.jpg" alt="REL Acoustics HT/1510 Subwoofer"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1510-subwoofer-p4678">REL Acoustics HT/1510 Subwoofer</a></p>
<p>HT/1510 resets expectations for REL&amp;rsquo;s standard bearer, with a confident, sexy new look that meshes perfectly into the traditional REL family, while delivering significantly increased power and improved, well, just about everything. Predator II delivers upgraded performance across every performance category: 1,000-watt amplifier with PerfectFilter™ inputs, new 15&amp;rdquo; CarbonGlas™ driver that handles vastly more power, and confident, elegant styling not previously seen in home theatre designs. This encourages use in multi-REL systems, allowing blending with Serie T/x and Serie S.
Predator II, the full upgrade of HT/1510, builds on REL&#039;s original home theatre-subwoofer (winner of Home Theatre of the Year awards on multiple continents) by upgrading every component and aspect. These upgrades were based on three key learnings:

1. The sound was so good, people wanted more power
2. Looks matter and despite being enjoyed in the dark, a home theatre subwoofer must look every bit as stunning as its audiophile-driven kin
3. Mating the HT/1510 with our high level models (Serie T/x and Serie S and Reference Models) produced dazzlingly rich, full continues theatre quality bass
</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1510-subwoofer-p4678</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/ht-1510-subwoofer-p4678</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics Arrow Wireless Transmitter</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/wireless-c112/arrow-wireless-transmitter-p4415"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/arrow-wireless-transmitter-p4415-37968_thumb.jpg" alt="REL Acoustics Arrow Wireless Transmitter"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/wireless-c112/arrow-wireless-transmitter-p4415">REL Acoustics Arrow Wireless Transmitter</a></p>
<p>Following on the heels of the acclaimed LongBow™ Wireless, Arrow delivers much of the promise and connectivity of hardwired RELs with the placement flexibility and pure cool factor of great wireless.
Please Note:&amp;nbsp;Compatible only with Serie T/i. Not compatible with Tzero.</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/wireless-c112/arrow-wireless-transmitter-p4415</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/wireless-c112/arrow-wireless-transmitter-p4415</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics Bassline Blue Naim Compatible Hi Level Subwoofer Cable</title>
              <description><a href="http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-naim-compatible-hi-level-subwoofer-cable-p4413"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/bassline-blue-naim-compatible-hi-level-subwoofer-cable-p4413-38036_thumb.jpg" alt="REL Acoustics Bassline Blue Naim Compatible Hi Level Subwoofer Cable"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-naim-compatible-hi-level-subwoofer-cable-p4413">REL Acoustics Bassline Blue Naim Compatible Hi Level Subwoofer Cable</a></p>
<p>The special and unique characteristics of REL&#039;s filter board are known only to their engineers and within this circuit lies the key to designing cables optimized for REL Sub Bass Systems. Available in 3M, 6M, and 10M lengths.
Naim amplifier compatible Bassline Blue cables available in 3M and 6M lengths.</p></description>
              <guid>http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-naim-compatible-hi-level-subwoofer-cable-p4413</guid>
              <link>http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-naim-compatible-hi-level-subwoofer-cable-p4413</link>
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              <pubDate>Mon, 08 Jun 2026 15:14:56 +0100</pubDate>
              <title>REL Acoustics Bassline Blue Hi Level Subwoofer Cable</title>
              <description><a href="http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-hi-level-subwoofer-cable-p4412"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/bassline-blue-hi-level-subwoofer-cable-p4412-38035_thumb.jpg" alt="REL Acoustics Bassline Blue Hi Level Subwoofer Cable"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-hi-level-subwoofer-cable-p4412">REL Acoustics Bassline Blue Hi Level Subwoofer Cable</a></p>
<p>The special and unique characteristics of REL&#039;s filter board are known only to their engineers and within this circuit lies the key to designing cables optimized for REL Sub Bass Systems. Available in 3M, 6M, and 10M lengths.&amp;nbsp;</p></description>
              <guid>http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-hi-level-subwoofer-cable-p4412</guid>
              <link>http://www.hifisound.co.uk/cables-c63/loudspeaker-cables-c85/bassline-blue-hi-level-subwoofer-cable-p4412</link>
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              <pubDate>Thu, 08 Oct 2026 17:26:43 +0100</pubDate>
              <title>REL Acoustics T/9x Subwoofer</title>
              <description><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/t-9x-subwoofer-p4404"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.hifisound.co.uk/images/t-9x-subwoofer-p4404-37862_thumb.jpg" alt="REL Acoustics T/9x Subwoofer"  class="lazyload" /></a>
<p><a href="http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/t-9x-subwoofer-p4404">REL Acoustics T/9x Subwoofer</a></p>
<p>Please Note: This is a one time listing for an ex-demonstration unit at a discounted price, please note there maybe cosmetic imperfections.&amp;nbsp;
Series T/9x is instantly seen as crisper, fresher, a full upgrade . REL&#039;s goals were not simply to improve upon its illustrious predecessor, but to deliver as much as possible of their latest Series on a budget. Faster, more transparent sounding system performance awaits you with higher output levels and even greater impact.</p></description>
              <guid>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/t-9x-subwoofer-p4404</guid>
              <link>http://www.hifisound.co.uk/speakers-c62/subwoofers-c82/t-9x-subwoofer-p4404</link>
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