Which speakers have rear firing speakers and how do they sound?


Stumbled across a review of the BMC Purevox which has a rear firing woofer and tweeter in addition to front facing ones. 

What other speakers use this same idea?
How do these type of speakers sound?

I'm curious how they'd compare to something like a Martin Logan


cdc2

Showing 3 responses by cdc2

Isn't this the core issue that people debate

A. Box speakers with front facing speakers are "more accurate - distortion free.

B. Electrostatic, bipolar, open baffle and omni speakers are less accurate with sound coming not only from the front but the back or top - e.g. have distortion built in

But in reality, when you hear live music, there is all sorts of distortion in any hall, though typically the sound is better in say the orchestra at the Beacon in NYC or the Capital in Port Chester than in the balcony. 

So, jump in and tell me how I'm wrong, but my experience is that speakers that are designed to replicate this kind of distortion sound more live. E.g. the Thiel, KEF, Canton and Proac speakers I've owned sound great but less live and less engaging than electrostatics or omni or bipolar designs. 

So, in search of the most live sounding speaker - suggestions?
Yes, tunable rear tweeters and or speakers, to give a more live feeling to the music.
Lots of good thoughts and comments. Question is

Which speakers actually get it right accomplishing both goals of
A. providing accurate sound replicating the studio recording with decent imaging
B. provide a sense of realism and space to give that you're in the room feel to the music

Possible solutions include:- Electrostatic and planer speakers like MLs, Soundlab, Magepan, etc
- Omnis like Ohm Walsh, or hybrids like Decware's HR-1
- Open baffle speakers like Spatial Audio's
- More traditional box speakers that include a rear or upwards facing tweeter and or midrange 

And of these - which works in more rooms than not? E.g. doesn't need to be placed 5 feet into the room and isn't the size of a barn door or cost as much as a new car?

Wow.. I know that's expecting a lot but interested in. your suggestions.