Absolute top tier DAC for standard res Redbook CD

And it looks ike I'm heading down to Audio connection tomorrow. Would love to meet any of you who are in the area.

Can anyone provide a list of speakers with the following characteristics:

1st order crossover
Time and phase aligned
Either sealed enclosure or front or bottom ported. Not rear ported.
Shorter then about 55", not more then about 20" deep.
Reference or statement product

I have a mental list. But I'm curious to see if I'm missing any.

I'm not necessarily using this as a be-all end-all requirement but it's a category to look at......

Only a couple come to mind that are true time and phase aligned. Matt, I am searching the net to see a good list. I came across this posting about this subject. Not sure if it means anything other than how a speaker will sound off axis. Personally I have my position and don't really listen off axis, lol...I'm sure that's just me though.

"As for the companies you mention -- Magico, Vivid Audio, and Rockport Technologies -- none makes speakers that are time- and phase-accurate, even if the sloped front baffles of the Vivid and Rockport models look as if they might be. In all cases, they use higher-order crossovers to greatly reduce driver overlap, which have more phase shift " I like the Rockports I've heard. I"m just not a Magico guy (sorry). Heard Vivid once, but not enough to really say one way or the other. I know I don't like the older Thiel's and have no idea what they are making now days with the new company.

Looks like a company has to make their own speakers to get this right due to the overlap of frequencies. Off the shelf or even modified won't work based on some articles I've been reading up on. I"m sure someone here will have other ideas. This has become my favorite go to thread for learning and some of you have changed my mind greatly.

On another note, I have heard the whole Vandy line yesterday and the Wilson, Dynaudio gear (upper end stuff) the day before. All on Ayre Reference 20's. Those amps are possibly the best I've ever heard and yes I've heard many of the esoteric lines out there. I can't do Wilson's still. No emotion for me or layering. Very accurate though. I liked the Dynaudio a bit. Something was missing for me though and I can't even tell you what.

Back to Matt's question, but wanted to share.

Matt, for a checklist of manufacturers of time coherent speakers (which also implies phase coherence) see this post, and the response in the second post following it. Many of those mentioned will not meet your other criteria, however.

Note: "GMA" = Green Mountain Audio.

Regards,
-- Al

Wow what a thread, lol. So much disinformation being put out at times based on what some top designers have said. Some do get it though. No design is the be all end all, however those of us who listen to a speaker with these parameters will usually enjoy all the ones who do it well (i.e. make/design their own speakers and use TOP grade components in the overlapping xovers etc..). No it's not easy and it's expensive to do. I think that's why many designers don't go this route. For some of us, we don't care what others say about a component. We may listen and go hear something based on what is said or reviewed, however if you trust your own hearing, you will be fine no matter what you decide to get. I know Matt enough to know he does know what he's listening to, but like everyone, the more we hear the more we appreciate the difference between good and great. Ton's of good out there, but not a lot of great I don't think.