I have had no problems with reliability, BUT the sound this thing produces is awful! The bass is light and airy, it does not sound as if it is capable of producing bass at all. It will `flip` in and out of a horrible light boxy noise to a horrible midrange humm. I knowhat I am doing, and I have set it up right, but there is just no depth to the sound. And for £600, what a con!

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Plays very well. Had it now for 14 years.

There is a known problem with this sub. When Playing it hard, risk is that the amplifier in-site hits the metal of the heat sink, making a short. Repear at BW workshop wil fix and also make modification to it.

Agreed with all reviews but need to do something

When I installed my home theater, I selected B&W CM4 series mains, CMC center, and CM2 surrounds (all are absolutely awesome!). However, the CM sub (servo) was a bit expensive and to save money I purchased the ASW 675. In retrospect, this was a big mistake. The sound from the sub never meshed well with the rich, tight clarity and endless power of the other speakers. Furthermore, the sub had a nasty tendancy to stop functioning. I would reset the power, and it would resume operations. Finally, about 2 months ago, it stopped altogether (driver failure). Granted, it is 7 years old, but still not something I would expect from B&W.

Bottom line: There are better subs out there for the money, especially considering the reliability issues.

small, name

light sound, no bass, expensive.

It lcost £600,

After reading a fiew reviews on this sub, I cannot totally agree with all.

I have had no problems with reliability, BUT the sound this thing produces is awful! The bass is light and airy, it does not sound as if it is capable of producing bass at all. It will `flip` in and out of a horrible light boxy noise to a horrible midrange humm. I knowhat I am doing, and I have set it up right, but there is just no depth to the sound. And for £600, what a con!

Customer Service

verry good

Similar Products Used:

eltax a12.2, Rel

Dealer support, flexible hookup options, looks good

Bass seems boomy and slower than desired, reliability seems to be an issue

I purchased the ASW-675 for use in our home theatre system. My mains, center, and surrounds are Acoustic Energy and from day one the subwoofer could not keep up with the speed of the AE speakers. The B&W loudspeakers are good, I have owned a couple of sets, I also have an ASW-600 performing bass duties on a 2-channel system. I believe the ASW-675 produces a "boomy" bass with some pretty good sound pressure levels, however, for the $1000 cost - I am not real impressed with the speaker. The subwoofer also has required repair, it just quit working after a two year period of use. I noticed others have had the same event with this model. I would definately audition prior to purchasing, I did not - I just relied upon the B&W name for quality assurance. I also owned a klipsch 12' subwoofer that probably provided the same movie "thrill" as the more expensive B&W unit .

Customer Service

Good dealer network

Similar Products Used:

ASW-600 , Klipsch 12" subwoofer
Home theatre system is pioneer elite receiver and dvd with AE speakers and the B&W sub.

Crisp, Tight and impressive low freq range. You dont just hear it you feel it! Never sloppy or smeary. Keeps pace with fast material. Sounds great with music either in stereo mode, or in Dolby Digital Surround sound- in music mode. Still very impressive and satisfying with action DVD movies.

None from my point of view.

Perhapse this subwoofer integrates better with my CDM 9NT mains and CDM CNT center channel spekers than others. Since the timber of this Sub is more in line with that series of B&W speakers. I can only guess that this may be a factor in why others with different manufacture mains or with B&W DM 602s etc. were not as impressed with their outcome.

The bass I get from my CDM NTs, especially because I Bi wire and Bi Amp them may help create a more integrated and harmonious result than others may be able to achieve.

My main purpose in persuing a subwoofer was to provide some extra bass extension when listening to music and also provide extra punch to action movies. In my opinion the B&W ASW 675 really delivers both beautifully.

With it I still have nearly flawless audio quality while listening to music. They way I fine tuned it you don't really notice its there and on, unless you turn it off in the middle of a song. When you do certainly notice it is when playing action DVDs like Starwars "Revenge of the Sith", etc. When there are expolsions and lightning in movies you really notice it. However, it is never overpowered. Never sloppy, or smeary. It provides very tight, crisp low freq. and always seems to keep pace with whatever is thrown at it. I couldn't be happier. I was looking for the best balance of both worlds and feel that I have achieved it beyond my expectations.

As always there are so many factors that influence the end result in audio. Your milage may vary. I will include my setup specs below for reference.

Arcam DiVA ARV200 - AV Reciever
Arcam DIVA P85 - 2nd Power Amp.
NAD T571- DVD/CD
Furman PM8- Power Conditioner
B&W CDM 9NT - Main Speakers
B&W CDM CNT - Center Channel
B&W ASW 675 - Subwoofer
B&W DM 602 S3 - Back Channels

All speakers Bi Amped with Audioquest Type 2 on top, and Type 4 on bottom of speakers.
CinemaQuest VSD2 Digital Cable
AudioQuest Viper Analog Cables out from ARV200 to my P85 Amp.
Monster Bass 400 Subwoofer Cable and Interconnects

Customer Service

Great.

Similar Products Used:

ASW 500

Nice sound
Deep bass

Bad quality
Not reliable

B&W ASW675 sounds very good and is capable of really nice deep bass. But since I got this sub about year ago, I have replaced it 3 times. Always the same problem: no output! It just stops working for no reason and I usually never drive it hard. I am planning on getting rid of it.

Powerful, tight, fast, organic bass.

The absolutely only downside is the long break-in time, 500hrs can take months of torture... But it's really worth the wait.

So here's the deal... These fools below gave this sub just 1 star, and at least one of them only played them in for 20+ hours and then he considered them broken in, and thats what amazes me. I've had this sub for three months now, and been playing on average 3-4 hours at least 5 days a week, pretty loud bassy music. The first 60 hours or so the sound was just terrible, and I started to think I had invested my money on pure garbage... But from what I read in two different magazines this was supposed to be one of the best sub ever made. But the bass was just wrong in every aspect, too soft and too rumbling at the same time, and so unclear. Then I called the store where I bought them, and the guy told me that he had had the same sub for over a year, and that it took a least 500(!) hours before it was completely broken in. So now I've come as far as 300+ hours, and the sound is starting to really "open up", every bassnote can be heard so effortlessly, and bassdrum in rockmusic is so punchy and hard now, but in a audiophile way, really controlled. I'ts almost like beng in heaven, the sound is that good and powerful now. The difference between when I got them and now is litteraly like day and night. Just pure audiophile powerful smooth bass. It may sound exagerated, but it's more like the opposite. And the best part is that the sound from my 602 s3 loudspeakers is just as clear at low volumes as when the whole house is shaking. It's really Quality over quantity.

None absolute rubbish

Flapping wings about to take off

After owning this sub for a couple of months i have changed it twice. This sub is what the other fellow has said to be a cheap rip off!! Why playing mostly music i found with Jean Michelle Jarre that when the bass notes went really low this stupid subwoofer sounded like bird wings flapping i thought it was going to take off unbelievable. So after a few negotiations with the dealer i changed it with a Klipsch RSW-12. Another stupid sub to boomy no musical clarity bass was out of tune and so on so i sold the sub and to my suprise i went out and purchased a Yamaha YST-SW 515 for $600 AU. Hooked it with Y-interconnects and boy does it hammer. Tight big bass big sound, my house is on a concrete slab and it was shaking the windows and wall oven? (yes the wall oven). I was so impressed that i went back to the store and purchased another one and BOY WHAT MEGA BASS! ASW 675, Klipsch RSW 12 BRING IT ON!!!! So not big name subs are what they mean to be, just goes to show you that something cheap can actually blow the doors off something more expensive. By the way the yamaha's are ported and are running a 250 watt amp pushing a 10 inch down firing woofer.

Similar Products Used:

B&W ASW 650, Klipsch RSW-12, YAMAHA YST-SW 515.