Soundstage and explosive dynamics?


I’m looking high and low for speakers with the following attributes:

1. Wide and deep soundstage. Speakers can disappear from the soundstage.
2. Decent imaging.
3. Explosive dynamics with force and surprise.
4. Costs less than $10k.

madavid0

I am a bit cautious about generalizing about various types of drivers and speakers; there are really good and bad implementations of all types.  Given this caveat, I do agree that large coned woofers can be very fast and dynamic and deliver tone.  I have heard terrific 18" drivers that can do this.  They typically have light paper cones and pleated paper surrounds.  Despite their size, they are not designed to go very deep in the bass range (the pleated paper surround restricts the range of fore and aft movement).  But, properly implemented, they can deliver very tuneful bass.  The high efficiency of many such drivers make them suitable for use with low-powered amps (my favorite kinds of amps).

The kind of dynamics the OP wants is less a function of deep bass than what the speaker can do in the midrange.  When done right, horn/compression drivers are hard to beat in this department.  They can sound extremely dynamic at surprisingly LOW volume.  I actually prefer large horn systems playing at low volume than when they are cranked up very loud (they tend to "shout" at high volume.  That might account for the popularity of huge horn systems in Japan where the size makes no obvious sense, given the small rooms.  But, horns sound good in small rooms (my guess is their directivity reduces the influence of the side and back walls) and because they can be played at low volume, they would work in Japanese apartments.

I've also heard startlingly dynamic sounds at not crazy volume levels from some panel type speakers.  I recently heard stacked Quad 57s with custom active crossovers to two custom tube amps at the Capital Audiofest deliver great dynamics.  The Sanders Sound electrostatics I've heard were also extremely dynamic. 

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The OP has a $10K budget and shouldn’t have much trouble finding speakers that meet his criteria, horn loaded or otherwise.

Every speaker design has its tradeoffs. If it’s not low-level dynamics, it’s tone, coherency, imaging or something. I currently have 3 pairs of speakers in 3 systems and each have their strengths and weaknesses. In Kosst’s defense, horns tend to have a love it or hate it sound, despite all the things they can do well. While I like some horn speakers, I understand why others don’t. I think everyone here can agree that some speakers can manage surprising feats, despite their size and lack of efficiency. For some, a pair of KEF LS50s would be plenty "dynamic." After all, that’s a subjective term, and for which system context must be considered. For my tastes, a pair of Spendor SP100s or Harbeth M40s would meet all my needs, but someone out there would certainly find them anemic by their standards.
Phusis excellent explanation which I cannot find any fault with.

Larry good point as well, there are bad implementations of horns which generally I find to be in the cheaper PA realm
Perhaps someone should start a thread regarding horn speakers. This " love it or hate it " impression has to be explored, I think.
Personally, I don't like in your face sound nor do I like laid back sound, horns or not.