Surround Sound Speaker Systems

Atlantic Technology 4400 Speaker System


Addendum to Atlantic Technology 4400 system review - 642eSB THX select subwoofer

I was having trouble getting good performance from the 444SB so Atlantic Technology was kind enough to send me one of their THX Select certified 642eSB subwoofers. Upon arrival, I immediately noticed the size difference. The 642 is quite a bit larger! It also weighs quite a bit more. It was a decent workout getting it unpacked and moved. To me, this is a good sign when it comes to subwoofers. I set the crossover to bypass and cranked up the gain to about 40% then turned on some music.

First I tried out a track by Alicia Keys – "You Don't Know My Name" from The Diary of Alicia Keys. Wow, so much more depth and punch to the bass notes than with the 444SB. Already I could tell this was a different beast. It sounded like the 642 had quite a bit more range, both in the low end and the higher bass, closer to where the mains cut off. Everything just sounded a lot more seamless to me. I played a few more tracks to get a bit more familiar with the new sub. Radiohead's "There There" from Hail to the Thief was full and clean sounding. Gone was the slightly muffled sound I got from the 444.

Next up was The Dark Knight (Blu-ray). I skipped to the batmobile scene again. I was very curious how the 642 would handle all the rumbles and explosions. On the 444 I felt everything was mashed together. As if the subwoofer was really only playing one frequency. This was absolutely not the case with the THX 642. The sound of the batmobile had so much more depth do it. It felt more like a real engine rumble in my living room than with the 444.

The 444SB is set at $900 where as the 642eSB is $1200. Not a huge jump in price if you ask me. I highly recommend spending the extra 300 bones to get the 642 model. It outperforms the 444 in every category and is easily worth the investment. The only reason I can see getting the 444 instead would be if you have a size limitation on a subwoofer. If you don't mind it taking up a little more space, absolutely get the 642eSB instead!


  • Powered subwoofer, sealed enclosure
  • High efficiency tracking amplifier
  • 2-inch, four layer vented aluminum voice coil, vented motor
  • Continuous 40–140Hz crossover, 18dB/octave low pass output
  • Variable low level stereo inputs and low level outputs
  • Absolute phase invert switch
  • Auto signal sensing on/off/bypassBass Driver - 12" long-throw composite cone
  • Bass Driver – 12" long-throw composite cone
  • Output Power - 300W RMS
  • Distortion (amplifier) - <0.5%
  • Frequency Response - 25Hz - 300Hz ±3 dB
  • Low Level (line) - 20kÙ
  • Peak Output - 105dB SPL into 2000 cubic Feet
  • Dimensions (WxHxD) including grille - 19 x 21 x 20.5 in. (483 x 534 x 521mm)
  • Weight - 65 lbs; 29.5kg
  • Power Requirements - 110-120/220-240V, 50/60Hz
  • Price - $1,200