Affordable, effective power conditioning improves both audio & video. Solid build quality.

Just needs more digital outlets etc.; hence the upgrade path.

I wasn't expecting a huge improvement, so that's partly why I rate this fine product "Far better than imagined." And this is about as little as can be spent on any quality power conditioner, esp. one with separation of digital and analog components, so a 5 for value as well --though I was surprised to learn how expensive these things can get, in general Anyway, everything, both video and audio, seemed to improve when powered by the Chang. I'm now going to ugrade to the 9600 MK II, myself, go gain more digital outlets, higher current capacity (for amps), and even higher-quality filtering, despite the fact that the unit costs close to triple the price. (Perhaps I'll keep my Baby Chang for use with my microphone & keyboard...) I never thought I'd spend this sort of money on a glorified power strip ;) But try it, yourself, and see if you don't like it, too.

Similar Products Used:

Nothing before, really; just cheap surge protector power strips, which no longer seem appropriate for my quality components :)

really works! excellent for the money

a little bulky and the outlets are on the top of the unit

recently bought this for my a/v system and i must say it really works. while it may not be cheap but the sound is significantly quieter, more detailed and smoother than before. tried a cheaper one from castle and found that the sounded got less dynamic and found the lightspeed much better value for money than other expensive products. probably because there's no transformers or coils inside the lightspeed.

Similar Products Used:

castle, audioprism, ps audio (really over-priced)

Increased dynamic range, lowered noisefloor, fixed ground problem, and build quality!!

None I can as of yet report on!

First let me state, this is a review of the Chang Lightspeed 6400, not the 3200. I have used the Chang 6400 for about three months now, and have compared it with the following products- A.P.I. Power Wedge 114, A.P.I. Power Wedge 112 MkII, Panamax 1000, and various other surge protectors. The first thing I have to admit, is that the Chang did away with a problem I was having. Every time I would turn on a light switch, you could hear the click on my system! The A.P.I. Power Wedge's did nothing to help this, but as soon as I hooked up the Chang, the problem was gone! The Chang also provides a much "blacker" background from which the music now flows. It's as if the Chang has lowered the noisefloor quite a bit (and it has!!). The Chang also has helped in increasing the Dynamic Range of my system, again by lowering the noisefloor by a good bit. My system isn't the most expensive out there, but it sonically is very good (I dare anyone to blindfold themselves and tell me how much my system costs, they will always guess high!!). As good as any system is though, I believe that the Chang Lightspeeds will improve it! This is coming from a man who didn't believe in power conditioners, just a few months ago (My API's were a joke!). My system includes the following components- Snell EII Speakers, H/K750 Int. Amp., Nakamichi CDPlayer4, H/K TD292 Cassette Deck, Sansui TU-S7 Tuner, AudioQuest Turquoise X2 Interconnects, AudioQuest Slate Bi-Wired Speaker Cables.

Similar Products Used:

A.P.I. Power Wedge 114, A.P.I. Power Wedge 112 MkII, Panamax 1000, etc...

Lets your amps breathe

None, except that it''s a bit industrial looking

Big Difference in dynamics, detail, and soundstaging

Similar Products Used:

ADCOM 515

some people may like the "changed" sound

compresses dynamics, reduces low-level detail and air.

I have had the Chang 6400 for a few weeks now, and I have to rethink the whole thing. Yes, the difference is huge -- but not in a good way. I have decided that the "blackness" was because all the low level dynamics were gone from the music. I found myself not enjoying the music any more. I finally returned it. If you have a "harsh" sounding system, upgrade your speaker cables or digital processor or speakers -- not your power system. I have talked to others with the same experience -- initially liking what this product did for their sound, only to realize after a while that they were missing a big part of their sound. Something just isn''''t right. This is clearly a sound modifier -- not just a "noise" filter. Perhaps some components react favorably, but I would suggest that amps and receivers do not, despite the advertising. I don''''t want to trash this -- but I will downgrade the "average" of this review and the last.

clean up sound, fix tizzy highs, increase detail

This is a review of the CLS 6400 ISO MkII, which is the next model up from the 3200.

I wasn't expecting a lot to happen, but was told I might get more detail. Here is my system:

Toshiba 3750 DVD player, using digital out only.
Denon 5800 A/V receiver
DIY CAT5 speaker cable
Snell Acoustics EII speakers

I plugged the DVD player in to the digital socket, and the receiver into the analog. What I heard was nothing short of amazing. It was like I got a new receiver. Gone were the harsh high end. I got a mid-bass increase as well (although that may have been a psychological effect of reducing the distorted highs, which allowed me to turn up the volume).

While I missed a little bit of the "excitement" of the highs that I used to have, I plugged the receiver back into the wall a few times to compare the difference. Never again! I can't listen to my system without the Chang anymore. The difference is that huge. I have all the bass slam I could want, and the highs are so smooth now. The background seems "black", and I notice the annoying sound of the DVD transport now, where I didn't before. The soundstage seems deeper as well.

I tried the receiver in the "digital" socket, but it didn't work well. It had better highs than in the bare wall, but the mid and bass seemed a bit thin. It was an in-between improvement, and it might have been slightly worse in the bass than with the wall socket.

I don't know if the lesser filtering of the 3200 makes it a better match for some equipment, or perhaps not as good for others. I just know the 6400 is like doing a major upgrade on my system. This is highly recommended.