Spatial Audio Labs


I have owned the older Spatial audio labs design 
I don’t see much on the Newer X3 and X5 models .
I heard them a few times at audio get together s  several months ago 
and being 97 db efficient, with power Bass below 90 HZ , the open baffle design seems to hav3 come a long way , the superb to my ears Beyma Tweeter-Midrange is very special in the designed-wave guide 
and venting out the back from 1 khz - around 25 khz  with Nothing in the Xover above 1 khz 
I was very surprised only 2 capacitors and 1 inductor in the entire Xover . I heard them with the upgraded VH audio Odam capacitors . They sounded at least as good or better then any $15k + box 
speaker . If anyone owns these, or has heard them in depth  pleas3 share your experiences
128x128audioman58
The most difficult part of a loudspeaker to manufacture is the enclosure. The reason big ESLs are relatively inexpensive is that they do not have one. It is much easier to make a simple plate so Spatial can make a very competitive loudspeaker and probably make more money doing it. I myself have made several open baffle speakers for friends pairing them with sealed subwoofers which brings us to the problem, bass. There is no sub bass. As the wavelengths get longer they simply cancel out. Above that bass performance depends entirely on the room and how sound bounces around. In the right room these speaker can sound very bass heavy. Distance from the wall is also important. Having measured X3's I can tell you there is no way anyone will get remotely flat bass response out of them even with room control. But bass can be very difficult to evaluate. people can "hear" the note even with the fundamental missing. 
Our brains fill in the blanks. 
The best way to use these speakers is with subwoofers crossing up a bit higher at 100 Hz at least. This will dramatically clean up your midrange and give you controllable bass as low as you care to go. This is not much different than any dipole loudspeaker as they all have the same failing. 
The X5s make me happy.  

Over the past 40 years I have gone from electrostatics and ribbon speakers, including Beveridge 2SW2, Sanders, and Magnepan (1.6 and 3.6), to open baffle speakers designed by Clayton. Prior to the X5s I had the original Emerald Physics CS2.3s and then the Spatial M1 Turbo S model, which is the predecessor to the M3 Sapphire. With the X5s I feel like I have arrived. To the point of not even being curious about other speakers.

As a point of reference, I exclusively stream Tidal and Qobuz, alternating between a Lyngdorf TDAI-3400 for casual listening, and an MSB Analog DAC -> Whammerdyne DGA-1 (4.2 watt 2A3 SET) amp for real music listening sessions.

I agree with markmuse in that the X5s are an uncanny combination of revealing and relaxed. An open window to whatever is upstream, to my ears. And impressively robust yet tight bass, even only 2' out from the front wall. Perhaps I am sacrificing a bit of soundstage depth by not having them out farther, but they sound so friggin beautiful and uncolored I don't care.


This is why I mentioned their ultimate upgrade which I heard before and after.
stock it has a decent inductor , and clarity Csa capacitors which are better then average . These is only 2 capacitors and 1 inductor 
the VH audio Odam capacitors are the top upgrade caps , and matched to within .05% per pair , and awg 16  Jantzen 
Copper foil wax inductor , truly raises the  bar  in detail, image density and sound
staging for only about $600 in parts  and will still fit in the stock Xover space.
jaybarnett said: 
Over the past 40 years I have gone from electrostatics and ribbon speakers, including Beveridge 2SW2, Sanders, and Magnepan.
The Beveridge were one of the most amazing speakers that I have ever heard.  How do the X5s compare for lifelike sound that the electrostatics are so good at?  Thanks.
The 12 inch driver isthe midbass , not midrange, how can one statement above 
say they owned the. X3 and not know the very good Beyma AMT driver is big 
and handles 1khz - past 30 khz which handles the whole midrange,
and high frequencies and the Xover is point is just under 1 khz very clean and nothing in the Xover  to the critical midrange , and at 90 hz Cover to the 
powered Bass.