I reviewed these speakers a couple of weeks ago, but the page seems to have disappeared, so I'll try again with more listening experience to boot.
I was listening to the BP2002 and 2004's at my local NOW!, they sounded great, but it was hard to justify their price. As I was leaving, the salesman said he had some new Definitives that I had to listen to. He unpacked these Pro Tower 400's, part of the Pro Cinema Series from DefTech. They are direct-radiating powered towers with a 1" aluminum tweeter, 6.5" midrange, and two 6.5" woofers powered by their own 125W amp. I know it's a completely different sound than bipolar, but I thought they blew away the 2004's and 2002's, and I like bipolar.

In the same listening room were the Boston Acoustics VR 960 and 970's as well as some huge Klipsh's (don't know model #'s, >$1000/pr range). Of course, the Klipsch's were louder as usual, but neither the Bostons or the Klipshs sounded as crisp, rich and clear as the Pro Towers. I told him to put them back in the box, I was taking them home.

I have them connected to a very inexpensive receiver (Technics SA-EX 900) and Sony cd player, and they still manage to sound fabulous. The midrange and treble are outstanding, and the bass is hard to believe for a pair of 6.5" woofers, very tight and distortion-free. I couldn't be happier with them.

I've had a pair of Definitive Technologies ProTower 400s for a little morethan two months. Simply put, they rock :-)

The basics:
Drivers: 1 6.5" cast-magnesium basket bass-midrange
1 1.0" aluminum dome tweeter
2 6.5" cast-magnesium basket subwoofers
Amplifier: 125 watts RMS, auto power-on/off
Efficiency: 91 dB
Frequency Response: 19Hz - 30kHz


I didn't plan on buying the ProTower 400s. I saw them in my local hi-fi store's catalog but there weren't any on display on the three occasions I had come in to audition speakers. I had narrowed my interest down to the Def Tech bipolar series (either the BP8s with separate subwoofer or BP2004s) or Paradigm monitor series. I decided one weekend in late December to do one final audition before making a decision.

Preferring the simplicity of integrated subwoofers (and ignoring the fact that I don't really have enough room for bipolar mains), I decided on the BP2004s. As my salesman and I were about to walk back to the desk to negotiate the final price, he suggested that I first listen to these new speakers that just came in the day before -- the ProTowers!

These speakers are compact to say the least. They looked diminuitive when placed next to the BP2004s. I had read the ProTower specs from the catalog and was convinced that the 6.5" subs were going to be a liability - they couldn't possibly reproduce wall-shaking explosions, could they? Still, I decided to humor my salesman and give them a listen.

So how did they sound? I was in awe. How could Definitive make a pair of 6.5" woofers produce such deep bass? The speakers I was replacing had 15" woofers yet they can't compare to the ProTowers. Overall, the ProTower 400s sounded remarkably similar to the BP2004s if you keep in mind that the BP2004s are bipolar and the ProTowers aren't. And they're substantially cheaper than the 2004s too!

Twenty minutes later I was walking out of the store with a pair of ProTowers.

Okay...so the speakers produce plenty of bass. What about the rest of the spectrum? Some people claim that Definitive speakers tend to trade midrange for bass. If this is true, it's certainly not obvious in the music that I listen to (classic rock, Satriani, Enya, etc). The ProTowers have performed admirably.

Okay...so do the speakers have any flaws? Absolutely. The speaker grills suck. They're flimsy and they're damn mear impossible to remove without breaking a plastic peg. If I recall, there are 6 or 8 of these pegs and they fit very tightly -- I'm not about to risk breaking another one just to count. One wonders what Def tech was thinking when they came up with this design. The grills for their bipolar surrounds are a completely different (similar to the design used by Paradigm and others). They're sturdier and can be removed much easier.

Anyway...Grills notwithstanding, the ProTower 400s are a fine set of speakers. Definitive Technologies has another winner on its hands. Five stars if the grills had a better design. I think the ProTowers are the ideal home theater speaker for someone on a budget (picked mine up for $960/pair).


Setup:
Denon 3200
mains: Def Tech ProTower 400
center: Def Tech C2
surrounds: Def Tech BP2X

These speakers were my first large investment in hifi home audio. Until this point, I was using some Jensen speakers with 15inch woofs and I thought they rocked. How wrong I was. I started looking into higher end equipment and started buying.
Of course, before buying the BP 400 I auditioned a couple other speakers including the BA VR960s. While tha Boston Acoustics were nice, they lacked the clarity and definition I found on the Definitives. I was also looking for some speakers with built in subwoofers because I wasn't planning on buying a seperate sub for a while, and now I don't think I even need to.

After breaking in the speakers over night with some loud rock, I gave them a good testing.

I started off with the City of Angels soundtrack because I wanted a good test for female vocals. On Angel by Sarah McLachlan, her voice came through nice and clear without any coloration or without sounding too sharp like on my last speakers. Then I popped in some Reel Big Fish and jammed out for a while. I noticed things I never realized I was missing before. I felt and heard each individual time the bass drum was hit and all the guitar riffs just plain rocked. I was kind of doubtful as to how much bass output two 6.5s could have, but my worries were soon dispelled. I had the subs cranked up at first thinking I would need to, but I quickly turned them down to less than half. My mom complained that the windows in the house were shaking. (I'm only 16)
Next was jazz, so in Miles Davis and John Coltrane. I wasn't dissaointed. Everything came through with piercing clarity. The snare and cymbals were well defined and bass was tight and deep.

Then on to movies. I started off with my trusty Star Wars Trilogy, and also gave it the THX test. Man, my room was shaking. On the speeder scene in ESB, the AT-AT rumbled the room and the explosions were amazing. I was so impressed that I watched the whole trilogy for about the millionth time.

So in summation, I was amazed by these speakers. Like I said above, my old Jensens had 15's and they can't even come close to the output of the Definitives. But thats not all thats important. The Definitives excelled in every area. Voices and instruments all sounded great. I highly recommend these speakers to anyone looking for something in this price range.

The speakers are the best i have bought if you have the money buy them

I got these a little over a month ago. I'll admit I have probably the worst shaped room, sub basement, only about 8 ft from speakers to couch, windows behind the couch. I like to play music fairly loud, but these speakers seem to hurt my ears! Their highs seem very bright. I spoke to Definitive over the phone and they tried to help, but not sure what the solution is. I have a Sony 30es receiver if that helps. I also notice it from the C2 center also. So I don't know if this is symptomatic of their aluminum tweeters or poor acoustics? I still have a 60day exchange left from United Audio, so I'm tempted to try Boston 960's, they don't have much else in powered speakers. Bipolars wouldn't do much good due to the room shape.
Any ideas?

Thanks

I have just upgraded my whole system to Dolby Digital and DTS. I had Bose AM-5s and AM-7s, with an Energy exl-s8 sub. I have had these Bose for years and loved them but the bass was lacking and music sounded thin, hence the Energy sub. Well a buddy of mine interduced me to Definitve Technology. I decided on the Pro Cinema 400s and sold my Bose. I bought mine in white as I have a white wash oak and a Southwest decore. In the store these speakers sounded awsome with everything from full bottom end great mids and smooth extened highs! When I got home however the music sounded great, but when I played any DVD whith alot of LFE action I could hear some nastie rattling comming from my left tower. I let them break in and it was still a problem. After Trouble shooting extensively I called the dealer and he was happy to swap me out a new one. Sence this I have been very happy! I have not bought my center or rear speakers yet, saving up for them. With only mains selcted as large speaker with LFE routed to the 400s and the Energy I some times swear I have all five channels hooked up! This is truely an Audiophile level speaker. The Dual 6 1/2 subs crank out some awsome bass, although just short of spine tingling. The 6 1/2 mid and 1" tweeter sound very natural. These speakers will play extreamly load with out strain, as well as very quiet still having pleasing bass. These speakers have a MSRP of $1100, but I got them for $940 including tax and 20 ft. of 12 gauge white Monster speaker wire. I am going to buy Def Techs Pro Center C2 for sure next month. I have not decided what I want for rear surrounds yet? Maybe another pair of 400s running LFE to all of them including the Energy. As you may have guessed by now I love lots of bass. Buy these speakers, you won't be sorry!
My system includes:
*Toshiba 36" CF36H40
*Sony STR-DE925 (Receiver)
*Sony DVP-S530 (DVD)
*Sony SLV-940HF (VCR)
*Sony CDP-345 (CD 5 disc carousel)
*Terk Pi Power AM/FM antenna
*Monster Cable:
*Interlink Data 100 Digital Coaxial
*Video-3 S- Video
*Two Video-3 RCA
*Two Interlink 400II (Analog sources)
*Three 201 Subwoofer Interlink (One of them 12 meters long for the rear
located Energy Sub)
*Monster Power HT700 (Stage 1 Clean Power Conditioner)

Happy Listening Gary L. Bitters Jr.

I LOVE these speakers! For the $, there is nothing that even comes close. I replaced a Boston Acoustics SubSat7, in a 40X40 den! I am using the C-2 center and the BP-1X bipolar surrounds as well. All I can say is when my DVD(sony dvps330) arrives, I will have arrived! I am driving the bus with a Harman Kardon AVR-75 Dolby Digital receiver. I bought all the speakers from my Dealer in SA, 1 full price one 1/2 off. The center ran me $249 open box. I recommend all of these together, as they are all tonally matched.

The DefTech 400s were my first spkr. purchase in many years; they were part of a total system upgrade including a Sony KV32FV1 TV, Sony DA50ES receiver, S550D DVD player and JA20Es MD deck. For a center chan. spkr. I went with the Klipsch KSP-C6 and my old Fried A3's went to the rear channels.
All I can say is that these speakers are amazing, regardless of source. Particulary, chap 26 in The Fifth Element is enthralling; if you are unfamiliar with this film, this chapter features a breath-taking aria that allows these speakers, and system as a whole, come to life.

I also bought these on the "Buy 1 at Full Price, get the 2nd at Half Price" deal as the previous poster and consider it the best money I could spend.

In more detail, I've always favored a transmission-line design for the low-end and the 400's do not disappoint.

Highly recommended!

I have had my PT 400 for about 6 months. I had a Meridian speker system before. To me these are the best speaker for the money I have heard. What I like most is that they are not only good a rattleing the walls on videos, but are so nice just to listen to. Most "home theater" speakers I have heard, including some from Definitive Tech. seem to only be interested in the low end. These speakers seem to be very balanced. My wife loves them because they are relatively small, and there are no big subs scattered around our den.

These are amazing speakers. Having last bought speakers in High School (a $100 pair of Technics), I decided to splurge and go and by the ProTowers. I had listened to a few other brands, but these sounded the strongest in the store.
After bringing them home, I was blown away. Even through my cheap Sony receiver, they sound incredible. Rich, warm, with soaring highs, and pounding lows. I've never experienced a speaker where you could actually hear deep vibrating bass and precise high-end at the same time. My DVD's sound great and my music sounds even better. Paul Simon's "Rhythm of the Saints" is beautiful on these speakers.

A very good buy!