2. amps-preamps
  3. 154047-130718

LTA Ultralinear vs Pass Labs XA25

I'm very curious if anyone as listened to or had the chance to AB test these two amps together? I currently own the LTA ZOTL 10 MK II and absolutely love it for a multitude of reasons. I'm in the market for a new amp because 10 watts isn't quite enough power to drive my 88db SALK HT2's. I'm almost ready to spring for a Ultralinear but am very curious about the Pass XA25.

Thanks!
128x128benrosser
photomax
169 posts
 
I have upgraded to the Pass Labs XA30.8, driving my Spendor D9s with ease. Super happy...

knik
15 posts
 
@ddafoe 

I mainly listen to jazz and rock and listen at about the same levels as you mentioned (80db avg). The XA-25 can easily push the Spendors to lounder levels but then it gets too loud for my space.
I also like that the amp is smaller and lighter than the Rogue ST-100. It also doesn't get any warmer than the Rogue.
knik
15 posts
 
@shahram
In my system and room, driven by the matching Rogue RP-5 preamp, the Rogue ST-100 has better soundstage depth.
The XA-25 is comparatively slightly more forward sounding in the midrange and guitars, horns and percussion have better presense.
Through the Spendors, the top end is very smooth through both amps but the Pass has much better resolution of details. I can more easily differentiate between different cymbals and how then drummer is striking them through the Pass XA25
shahram
115 posts
 
@knik
Very interesting. I did notice when I upgraded to the D7s that the midrange, especially vocals, were more forward and in your face. I’m not sure I want it to be any more forward. I’m in a pretty small room (12x13 ft) so maybe the XA25 will not suit my tastes in my room. I’m not really looking for more detail, or resolution. My musical fidelity (KW-500) integrated is providing plenty of that. I want to add touch of richness and maybe a smoother/creamier top end.

The Rogue ST-100 or Pass XA30.8 might just be a better fit for me.
sisserman
8 posts
 

XA25 is a great amp.  

I just did an extensive AB with my LTA ultralinear

my buddies and I generally preferred the xa25 mostly due to increased bass extension.  both are amazing and have a very different signature.  The LTA has this crisp detailed image while the Pass is more relaxed and warm sounding.  I know, it should be the other way around with tubes but that is not what we all heard.  My favorite analogy:  The pass labs is a well colored in shrinky dink, done very well.  the LTA is what it looks like after being nuked.  more detail but smaller.... make any sense???  The pass sounds bigger and warmer..... LTA tight detailed, pin point image.  

They are both great and just different flavors!

good stuff.

(Wilson speakers used, Lampi DAC)      -steve

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