SKU: 88645530364

REL Acoustics Tzero MKIII - Closed Box Down Firing Subwoofer

Sale price$427.05 Regular price$474.50
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Description

REL Acoustics Tzero MKIII - Closed Box Down Firing SubwooferTzero MKIII Tzero MKIII is every bit a true REL, just smaller. It enriches even modest systems with power and natural bass by bringing the quality and full REL connectivity suite along with an all new aluminum cone that provides much greater stiffness to the driver for punch and a powerful, reliable Class D amplifier, all at an attractive price point and size. Ideal for apartments, flats, studies, anywhere space is limited. Miracle In Miniature 100%

Tzero MKIII

Tzero MKIII is every bit a true REL, just smaller. It enriches even modest systems with power and natural bass by bringing the quality and full REL connectivity suite along with an all-new aluminum cone that provides much greater stiffness to the driver for punch and a powerful, reliable Class D amplifier, all at an attractive price point and size. Ideal for apartments, flats, studies, anywhere space is limited.

Miracle In Miniature

100% REL, Just Smaller

Tzero is, in many ways, the most difficult design we have ever executed because never before have we delivered so much for so little. Five coats of your choice of black or white high gloss lacquer as in all Serie T, NextGen Class D amplifiers, our famous High Level Input, plus a separate .1/LFE input stage with its own volume control to get theatre levels AND music perfect without racing to adjust or looking for a remote control.

The jewel of the MKIII is the new aluminum-coned driver, a rugged 6.5” unit with exceptional output and low bass extension for its size. While it won’t drive medium or large rooms hard, we make plenty of larger models that handle that task, Tzero MKIII remains a miracle in miniature

Scaled for the Simple Life

Compact Power & Finesse

At REL every design begins by defining and designing the best bass engine for a given application. With its new aluminum-coned long throw 6.5” driver, the MKIII is powerful and articulate, delivering surprisingly deep bass. Able to fill smaller spaces effortlessly. Have a much larger space? Turn to one of our larger models, there are plenty to choose from.

Outsized Performance

Bass Beyond Its Size

At REL every clean sheet design begins by defining and designing the best bass engine for a given application. While the long throw 6.5” is our smallest-to-date, but make no mistake it is powerful and articulate, able to fill medium-sized rooms effortlessly. Have a much larger space? Distribute them throughout for an unobtrusive spacious presentation of music and film sound.

Brains & Brawn

Right Sized Power & Control

Though Tzero MKIII is REL’s entry level, that doesn’t mean it can’t punch far above its weight class. 100 high-current watts from a NextGen Class D amp means it holds its head high and is capable of delivering many years of satisfying performance. We feature the same high-quality input filters, crossovers and limiters as our larger models. Tzero MKII includes a full REL connectivity suite, fast 8ms delay filter set and our famed High Level Input as well as a separate .1/LFE input with its own level control and a standby circuit that reliably comes alive at very low levels.

Reviews + Awards

“I can say without a doubt that these tiny REL’s excelled in becoming one with my monitors in a way I’d never really experienced prior…. Overall I fell in love with these little REL’s. They’re small, WAF (Wife Acceptance Factor) friendly, and in the right circumstances would be all you’re looking for in a two channel system.” Read More +

Matthew Philpot, Everyday Audiophile

"This is The Little Sub That Could. The REL T-Zero isn’t meant to be compared to the big guns, but in a way the small-cones make them extremely fast, and that is a perfect foil for high performance audio systems.” Read More +

Alan Sircom, Hi-Fi+
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 88645530364

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Richard C Gelina
Draper, US
★★★★★ 5
I felt cute
Gorgeous. Little snug for the jacket for recommended size but I got 6 months to lose some stomach to fit better LOL I don't blame the jacket.
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Reviewed in the United States on April 7, 2026
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Brian McEachern
Natrona Heights, US
★★★★★ 3
Color is not accurate
Size: Medium, Color: Grey
Suit quality is good. This is NOT dark grey. Its a very standard grey when you have it in person. I might return just for this reason as we were really looking for a dark grey suit.
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Reviewed in the United States on February 7, 2026
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LoriP
Charlottesville, US
★★★★★ 5
Stylish, Well-Made, and Comfortable!
Size: XX-Large, Color: Black
I recently purchased this 3-piece suit for my grandson, and I’m very impressed with the quality and fit. The fabric feels durable yet soft, and the tailoring gives it a sharp, modern look without feeling too stiff. The vest adds a classic touch and elevates the overall style. The sizing was accurate, and the suit was comfortable to wear for long hours at work and events. The jacket, pants, and vest all coordinate perfectly, and I appreciate the attention to detail, like the lining and buttons. Whether you’re attending a wedding, business meeting, or formal event, this suit looks expensive without breaking the bank. Highly recommend for anyone looking for a versatile, stylish 3-piece suit!
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Reviewed in the United States on October 11, 2025
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Kristi Zoerhof
Alexandria, US
★★★★★ 5
Soft and well made!
Size: 12, Color: Red and White - Long Sleeve
This was PERFECT for our son's Candy Cane Day at school. It fit well and was well made. It fit him TTS and was soft to the touch. The colors were vibrant and the style was classic. This was a solid purchase that was well priced and just what we needed!
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Rosie
Whiting, US
★★★★★ 5
Comfortable fit, true to size
Size: 14, Color: Black and White - Short Sleeve, Size: 14, Color: Black and White - Short Sleeve
This shirt was great and went well with my son’s costume!!! It is made of nice material. Comparable to Children’s Place…fit my son perfectly and is true to size ( we got an XL). I would def buy again, but maybe in a different color… great product highly recommend!!
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Reviewed in the United States on January 27, 2026

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