Tonewinner SW-D9000 18" Subwoofer

I am replacing some legacy equipment and was looking for a solution that would replace an existing single Sunfire Sub. This room is quite large and with the help from Amir, I decided to go all in with two SW-D9000, the D6000s were not currently in stock. This was an easy decision for me.

First off, my interaction from start to finish with SummitHiFi was fantastic. Great communication and the units shipped extremely quickly to my location in the US. The only issue being with DHL having the vehicle to transport these to my home. I also worked with the delivery guys to get these into my basement.

Once in place and configured via the Tonewinner app, I was able to put them through the paces. To be clear, I was looking for sound quality. I was not concerned about look or size, but man these things are huge. These subs are 100% drop in. I did a little configuration, but in all honestly it was not required. I matched these with the Tonewinner AT-500 and the SummitHifi A7 Amp. I was replacing old equipment and the difference was incredible. I cannot say enough good things about the Subs. There are a few reviews that will detail the performance of the Sub, but for me it is all about the sound and how well it seamlessly integrates with my existing speakers.

It creates a warm and powerful bass that does not overpower the sound stage. It simply is present and not controlling. You feel the bass before you hear it and the power just sneaks up on you. It was so fun to rewatch a bunch of my reference movies and hear them in a new an amazing way.

If you are on the fence with these I suggest going for it. Lots of other companies will direct their profits to advertising and filling up social media feeds. These guys are directing their profits in R&D and creating the best value out there. I should say directing their profits towards performance and quality and also offering them at an extremely fair price.

I was looking to upgrade from my single PB16 Ultra and the next logical progression was the 17 ultra so I called Aamir to get 1 or possibly 2 ordered as I don't like upgrading often and the other side of my brain regretted not getting dual 16 ultras. Aamir was really pushing the D9000's but having come from 4 previous SVS sub versions I was reluctant to go to a relatively unknown brand and we all know how SVS' customer service is ( or was being in Canada and things have changed for us north of the border). Aamir had 2 D9000's at my doorstep before I even said yes, just a text saying Owen (can't give him enough props) is on the way this morning! No excuse not to give them a try now lol. They are heavy (heavier than the 16 Ultra) so if you're thinking about bringing them up any stairs, don't......you've been warned. Finish on them is good but maybe 9/10ths of what SVS is, again I have only had SVS before hence the comparison. Setup was incredibly easy and the app is easy to use with a load of options. With only 1 hooked up first (again this was a trial for me) it was immediately a noticeable improvement! My new theater room is in the basement, carpet over concrete slab and we all know what that does to bass. I had the tactile punch back, not like it was on a wood subfloor but a lot more than the 16 ultra! I use the spa scene from John Wick to test tactile punch, the gunshots used to hit me right in the chest and the D9000 brought it back! I ran a calibration through my receiver and retested with Top Gun Maverick. This sub rocks! Now I don't know what this sub put out for max SPL or what it's REW graphs look like but audibly to me this things trounces the 16 Ultra! I have both installed now and it's so smooth and even, again this is by ear and what I know of sub calibration (which is not a lot).

There is no reason in the world to go with SVS, the 17 Ultra is $5450+ tax, 2 of these are roughly the same price taxes in! I used to be an SVS fanboy but these have switched me over! SVS has increased their prices to anyone outside the US and that's a shame because they are going to lose a ton of customers once people put one of these in the room! SVS' warranty is awesome but with TW you have a longer warranty (seriously!!!) and TW has Aamir! This man seals the deal on any purchase I make and I would gladly pay a bit more $$$ and buy something from him. His CS, personality and general attitude to make sure you are completely happy is a a dying trait these days. Do it, you won't regret it! Thanks again Aamir!

I reached out to Summit HiFi and Amir gave me a call right away to talk through my options. Based on his feedback (and the fact that it just barely fits under my screen) I went with the D9000. This was replacing two 15” subs in my setup.

Delivery/Setup:
Coordination was great, but wow… this thing is heavy. Had it dropped off in the garage, and getting it up to my second-floor theater (20’ x 12’) was not fun. If you’re thinking about one of these, definitely plan ahead for moving it.

Performance:
Once installed — total beast. The bass is insanely powerful and tactile. I’ve already had two people ask if I had bass shakers installed in my seats (I don’t). That should give you an idea of how hard-hitting it is.

Features:
Honestly, the app is one of the best parts. When I’m watching solo, I crank it. When my wife is watching with me, I can quickly dial it back without messing around with the AVR. Super convenient.

Overall:
This thing is a monster. Can’t recommend it enough if you’ve got the space and can deal with the weight. I’m already planning to add a second one to balance the front of my room.

I contacted Amir to inquire about the Tonewinner SW-D9000 18" subwoofer. He was very helpful, spending considerable time answering all my questions in detail. Based on his guidance, I decided to purchase two D9000s for my home theatre, which measures 12’ wide, 18’6” long, and 7’6” high. Amir’s service was outstanding. Delivery was prompt and he provided hands-on setup assistance. It was an absolute pleasure dealing with him and I would not hesitate to give him my highest recommendation.

The subwoofers arrived very well-packaged and in flawless condition. Given their size and weight, we unpacked them in the garage before moving them into the house. Getting them down to the basement was a challenge and definitely required at least two people. Setup, however, was straightforward, and the Tonewinner app proved to be intuitive and reliable.

I tested the D9000s with several movie clips featuring intense low-frequency effects. The results were nothing short of spectacular; the bass was deep, powerful, and effortless. Music with heavy bass lines was equally impressive, delivering tight, controlled, and impactful low end. My only concern was the basement walls rattling under the sheer output. I owned many top-brand subwoofers in the past, including companies like Paradigm, SVS, and Funk Audio, and in my opinion the D9000s rate right up there with the best at a fraction of the cost.

Really enjoying this sub! Nice and deep, surprisingly faster musically than I expected. Thumbs up!