Website author headshot
Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.

What reviewers think

Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Manufacturer details

  • Available Lengths: 3M, 6M, 10M (NAIM version: 3M, 6M)
  • Connector Types: Neutrik SpeakOn (REL end), Gold-coated spade lugs (amp end)
  • Construction Time: Up to one hour per cable
  • Solder Type: Pure silver
Bassline Blue™ is a sensibly-dimensioned cable, well-constructed so that it will improve the overall sound of every aspect of the host system's performance. As with any REL product—the improvement extends well beyond the obvious bass region.
Sound illuminated

The ultimate upgrade

Bassline Blue™ is a sensibly-dimensioned cable, well-constructed so that it will improve the overall sound of every aspect of the host system's performance. As with any REL product—the improvement extends well beyond the obvious bass region. The greatest area of improvement lies in the manner in which the entire soundstage is illuminated. This is a quality quite different from brightness. Illumination acts to bring light into the stage and renders contrast and clarity as well as dynamic shadings much more evident.

What's In a NAIM? These same benefits are available to most NAIM owners—especially the older, classic models. These units feature an unusual output impedance that is quite complex. REL worked closely with NAIM engineers to model this behavior and arrived at a special circuit built into each NAIM cable that replicates this impedance so that it is safe to run Bassline Blue on early NAIMs. We even sourced a wonderful stackable banana plug that makes it so easy to use the cables, just plug them in to NAIM's flush-mounted chassis banana sockets and then plug your speaker cables directly into the rear of our stackable banana plug.

Natural Drawn Copper

Quality born from system thinking

Beyond optimizing the geometry of the internal lay of the cable, we also employ copper that exceeds industry practices and is of a quality and type...
Manufacturer Site

Brand highlights

Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:

  • REL subwoofers often enhance midrange resolution and expand the sound field, rather than simply adding "more bass."
  • The brand's signature high-level connection, using a Speakon connector, integrates the subwoofer with the main amplifier, preserving the sonic character of the system.
  • REL emphasizes a balance between power and speed in their subwoofers, resulting in nimble bass articulation and definition of bass notes.
  • The company delivers a high level of quality and attention to detail in the build and finish of its subwoofers, making them visually elegant additions to any system.

Tzero MKIII

  • Positioning: The entry-level model in the Serie T lineup, designed for small spaces and budget-conscious users.
  • Description: Offers a compact design with a new aluminum cone driver that enhances stiffness for better bass performance. Compared to other models like the T/9x SE, it is ideal for small rooms or apartments due to its size and affordability, but it lacks the power and depth of larger models.

T/9x SE

  • Positioning: A special edition model in the Serie T/x lineup, offering enhanced aesthetics and performance.
  • Description: Features a carbon fiber center cap for improved rigidity and speed, making it faster and more dynamic than the Tzero MKIII.

Classic 99

  • Positioning: Part of the Classic series, offering a blend of vintage design and modern performance.
  • Description: With a 12-inch paper-on-paper driver and 450 watts of power, delivers deeper bass and more power than the T/9x SE.

HT/1510 Predator

  • Positioning: A high-performance model in the Serie HT lineup, designed for home theater enthusiasts.
  • Description: Features a 15-inch CarbonGlas driver and a 1,000-watt amplifier, providing powerful bass and is perfect for large home theater setups. It offers more power and depth than the Classic 99.

Carbon Special

  • Positioning: A premium model in the Serie S lineup, combining advanced technology with a compact design.
  • Description: Includes a third-generation carbon fiber driver and a bespoke CSP passive driver for superior dynamics. Compared to the HT/1510 Predator, it offers a more refined sound for music lovers.

No. 32

  • Positioning: The flagship model in the Reference Series, representing the pinnacle of REL's subwoofer technology.
  • Description: With a 15-inch carbon fiber driver and a 1,000-watt NextGen 7 amplifier, delivers groundbreaking dynamics and tonal richness. It is ideal for audiophiles seeking the ultimate in sound quality.
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Avg. Product Price
$501-$1,000
Used For Sale
114
 Available (Scroll Down)
Brand Popularity
45
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
17
Founding Year
1990

Our take on the brand

REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.

Look inside the brand

Brand Page

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

From our interview with
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Brand Page

What if you spend more?

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How to buy

Cables

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