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REL Acoustics T/Zero MKIII Subwoofer, 6.5 Inch Down-Firing Driver, High Gloss Black

  • Based on 58 reviews
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Availability: 18 left in stock
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Arrives Tuesday, Dec 3
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Features

  • Experience home theater and music as the artist intended with the most award winning high end subwoofer brand, REL Acoustics. The Tzero MKIII enriches modest systems with deliciously sumptuous natural bass, high quality construction, and gorgeous finishes. Features high quality long throw drivers and powerful, reliable amplifiers. Makes music and cinema sound more natural with enhanced spatial resolution. Increases the soundstage depth and imaging for a truly high end experience.
  • Perfect for stereo or home theater systems. Matches well with smaller more modest systems. Use a single Tzero MKIII for rooms 100-200 sq. feet or a Stereo Pair for rooms 200-400 sq. feet
  • Closed Box, down-firing 6.5" long-throw steel chassis driver, 100 watt Class D amplifier with High Level Neutrik Speakon, Low Level single RCA, and .1/LFE RCA inputs, -6dB @ 37Hz in room frequency response.
  • No assembly required. Comes with manual, power cord, and 10M (33 feet) High Level Speakon connector
  • WARRANTY: 3 years parts and labor on new products. Covers all REL products and parts that are defective in material and workmanship. We will, at our sole option, repair or replace any defective parts free of charge. The warranty is no transferable.

Brand: REL Acoustics


Model Name: MKIII


Speaker Type: Subwoofer


Connectivity Technology: RCA


Special Feature: Bass Boost


Recommended Uses For Product: For Surround Sound Systems


Subwoofer Diameter: 6.5 Inches


Mounting Type: Floor Standing


Controller Type: Corded Electric


Color: High Gloss Black


Included Components: 10 meter high level cable with Neutrik Speakon Connector, User manual and power cord


Product Dimensions: 8.5"D x 10.5"W x 9.5"H


Audio Output Mode: Stereo


Speaker Maximum Output Power: 100 Watts


Item Weight: 15 Pounds


Is Waterproof: FALSE


Number of Items: 2


Control Method: Remote


Wireless Communication Technology: Bluetooth


Speaker Size: 6.5 Inches


Power Source: Corded Electric


Connectivity Protocol: Bluetooth


Manufacturer: REL Acoustics


Item Weight: 15 pounds


Date First Available: August 6, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Follow Wiring and Break In, Should be Rewarded, I Upgraded.
Well, a small box appeared on my porch, in it was a laughably small cube once put into my 10x11x8 room. Videos must add 10 pounds. What I wanted was to try the smallest REL with all the build and appearance quality of their larger subs, to first hear what REL was about in a sealed design in my vintage front end system. Though the sub chooser on the web site said to go with the T/5X, the Zero MkIII was on sale. Once connected to the high level, the output was immediatly not enough even at full volume to match the output of my 70WPC tube amp into Focal Aria 906's. Bass was lacking, something was missing. Bet you, now that I know from experience, I connected the high level wires out of phase to the amp as I rushed through it. That could account for the integration issue and my fault. I also did NOT follow the recommended break-in procedure video on the REL site. This company knows their products and this needs to be followed. I immediaty returned it and ordered the T/5X. Double checked wires, followed break in, placed it centerish out of corner modes...and viola. Perfectly integrated bass/mid bass support to the Focals, sounds like one system in space rather than points of sound in a room. Fast and tight, floating mid bass not buried by bloated, sloppy base, but supported by an accurate foundation maybe the hardest to reproduce in a 2.1 system. Just pointing out, the Tzero MkIII was shorted that chance maybe by my errors, but very happy with REL today. ... show more
Reviewed in the United States on June 20, 2021 by HDsmiles

  • Fantastic Subwoofer
Paired with Micca MB42x w/100w class D amp in 320sq ft room. Signal from REL HT-Air. For a small room, this is hands down the best subwoofer I've ever owned. Tight, concise bass that fits with the soundstage without overpowering. If you want thump in your chest, this ain't it. If you want to listen to balanced, but present sound, this is all you need. Exceedingly well built. It's just really nice. Highly recommend isolation feet. Specifically IsoAcoustics Iso-Pucks. Elevating the cone a few more centimeters changes everything. ... show more
Reviewed in the United States on January 17, 2023 by Nick

  • An all around music enhancer. REL T/ZERO M111
I was buying a sub for use with my GOLDEN EAR BRX'S which go down to around 30hz. The BRX'S are phenomenal speakers and being used for music only and driven with a MARANTZ 1200NR Amp. After connecting the REL T/ZERO SUB per the recommended method from REL using the included connector onto both speaker wires it was making a huge difference in everything. The low end in both channels now was noticeably crisper and highlighted all frequencies and especially the drums and strings. It was filling in the low end so there was no loss in music overall and gave it a more complete sound. Wow...what a difference. Bob David ... show more
Reviewed in the United States on July 26, 2023 by Bob David

  • Might only be a 6.5 inch driver but i can hear bass tones as low as 27hz.
Unboxing I think this should have been double boxed. it was only single boxed and there was a hole in the side large enough i can put my finger in and touch the sub. but after unboxing there was no damage. design this thing is sleek looking, I love the gloss black even though it will be a pia to keep nice. Its so cute and tiny i can fit it in the corner behind my desk. connections I connected the sub to my Vanatoo T0s with a single sub cable to the lfe port on the sub. set the crossover on the Vanatoo to 125hz switched the back mode switch on the back of the T0s to bass. set the sub gain to its highest and then i can use the volume knob on the speaker to adjust the gain instead of having to go down to the back of the sub. it helped me very easily blend the sub in. you dont even hear the sub now. sounds like its all coming from the speakers. performance Its awesome. if i have the bass up to high even the little 6.5 inch driver can shake the walls. i turned it down enough to where the walls, my desk and other stuff stopped vibrating effecting the sound. How deep can this little Sub go??? How about decent output down to 30hz then still very reduced db down to 27hz but still audible . conclusion this sub is perfect for your standard 4 inch mid woofer/1 inch tweeter bookshelf speakers. its the perfect amount of added low end. it just seams like my Vanatoo T0s now have 6.5 inch woofers instead of 4 inch. they just sound 2-3 times there size. ... show more
Reviewed in the United States on August 2, 2022 by Alexander

  • Love it.
Built like a little brick. It's great for music. With the 6.5 in driver It's fast and keeps up with the music plus it's a real looker.
Reviewed in the United States on January 26, 2024 by Daniel Sheppard

  • Instant upgrade to my system with a minimum of fuss
I have a good quality two channel hifi setup in my home office (12x12) and had been thinking a subwoofer would be a great way to fill out the bottom end of my bookshelf speakers (Wharfedale Denton 85th). These are nicely resolving and crisp, driven with a Rega Elex-R, but I listen to enough music with low frequencies (ambient, techno, some metal) that I felt I could use a little rumble. No need for bowel busting bass, as we're all adults here, leave that for the home theater goons. The T/Zero was the perfect form factor, so small it practically disappears in the room. Setup was easy, long cable, unfussy placement -- if you're using banana plugs it's even easier to connect to your speaker taps. I had it up and running and configured within 15 minutes. It's placed about six feet behind my speakers near the corner of the room. You could construct a system with terrific dynamic range using this sub. In my case, all the warm midrange and detailed treble is handled by the speakers with all the low-end coming from the sub; I have the crossover set fairly high to plump up the sound. I feel it would take a lot more cost and effort to duplicate these sonics in a single speaker cabinet; my office system now sounds as good or better than my reference. A great investment. ... show more
Reviewed in the United States on December 18, 2023 by Brian Bieniowski

  • OMG. What a great sub.
This little sub will take your speakers and system to another level. The bass is tight , playful and on point. I spent the last six hours playing records of a variety of genres and they all sound great ;even classical. My Emotiva system and Zu audio speakers are now performing at another level.
Reviewed in the United States on March 6, 2022 by Brian Mac Farlane

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