Discussions about this on Audio Circle. It looks like the tweeter for the M3 is no longer available to the M4 Ultra has a different tweeter and is a smaller speaker in stature (about 1/2 foot). The X series (I also have the X5s) are still available with the X4 Ultra having a passive woofer whereas the X5 and X3 having the woofer driven by a class D amp. I also found a used LTA Z40+ integrated amp and they go together very nicely.
Showing 2 responses by dz13
@dbt Thanks for the info. Steve Guttenberg had a little summary on speakers at the NYC Audio Show and he mentioned a bunch of the open baffle speakers including the Spatial Audio Labs which were part of a presentation by LTA.
Guttenberg didn't mention which speaker it was but I thought it was either the X4 or X5 based upon the AMT and the woofers seeming to be the same size. Guttenberg says he may review another Spatial Audio Lab speaker but didn't say which one and he also said he might review a "new LTA big integrated" which I would guess would be either the Z40+ or the Ultralinear +.
The X4 is about 3" taller than the X5s and has different speakers along with the passive woofer.
I still would be interested in hearing from anyone who has heard the M4 Ultra's tweeter and can compare it to the M3's tweeter or even the AMT tweeter on the X line. |