REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black

UnboxingI 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.designthis 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.connectionsI 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.performanceIts 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 .conclusionthis 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.

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.

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.

This thing integrates well with my Triangle Borea bookshelf speakers. The sounds is seamless. You can tell it's there other than the great wall of sound. REL is designed to work best with music. I'm running two tube amps, one to my speakers and one dedicated to the REL. The sound is incredible. Sub nit in pics, but that was the whole Idea of downsizing on space, but not the sound.

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.

If you are a music lover, have small speakers, and have a small room, you are going to love these subwoofers. I see "these subwoofers" in the plural because after you buy one, you will want two.That is what I did. I bought two of these subs in a week. In my home-office setup, these little subwoofers are the perfect compliment to my little Harbeth P3ESR speakers -- probably the best small bookshelf speakers money can buy. But like all small speakers, they cannot deliver on the low end. Two REL T/Zero subwoofers round things out completely. I could not be happier, particularly with the sale price.Now ... if you have a large room and/or are into home-theater explosions and lots of bass-driven drama, these little subs are not for you. These are for music. They disappear into the room, as good subwoofers should do.Music lovers will love these little gems. Well-done, REL.