2. amps-preamps
  3. 163337-117859

Pass XP30 preamp makes no difference (from dagogo) ? Wow! (active vs passive vs no preamp)

So I am considering a preamp upgrade. Right now have AGD HE9 into my Pass x350.8 and I do wonder if a better preamp would improve the sound further. Was considering a pass pre then came across this. Maybe i should consider just a passive balanced preamp for volume controls? Dac is Denafrips terminator.

https://www.dagogo.com/bricasti-design-model-1-usb-dac-review/
" so I proceeded to my ultimate test: direct comparison between having the Pass Labs XP-30 three-piece pre-amplification system in the equipment chain and taking it out of the chain. In my experience the Pass XP-30 is the most resolving preamp capable of delivering at very low levels – levels where you have to really be attentive to even hear the music in a dead quiet environment. Only when I got below 18dB did I feel like I was noticing a loss of detail, and even then I wasn’t quite sure. Since I never listen at such low volume levels, and I don’t know of anyone else who does, this was not a practical concern for me. Moreover, even at those very low levels I had to really listen to detect any loss in fidelity. Whatever Bricasti did to achieve it, the M1’s digital volume control is excellent. Note also that output gain is adjustable by setscrews from the back panel. "


smodtactical
smodtactical OP
979 posts
 
@roysq  22 beating the 30 is quite impressive wow.

Did you directly compare 30 to 32 ? I asked desmond what has change but he didn't give me any specifics.

Also I read at least 1 comparison that found XP32 much superior to arc ref 6. Did you compare any of these to any tube linestages ?
roysq
32 posts
 
@smodtactical 

Yes, 

I did try an AR Ref 6.  It's really good.  While I like a bit of the 3d soundstage that a tube pre-amp can add, I have found that newer DAC's can and should do the same thing WITH a good solid state pre-amp. 

The XP22 just did that for me.  Don't get me wrong, the 32 did the same, and might have been even quieter, but man it was splitting hairs.

As for the XP22 vs XP30.

It's SO hard to tell differences when you try to keep things in the same chain and simply swap quickly.  When it's obvious (like the XP12 to the XP22, and the Levinson sound vs Pass, or AR vs something else I found it easy to characterize that).  But between top units from the same company it was more splitting hairs for me.

It's really hard when you want to make sure the DB levels etc are all matched also.

But, FOR ME, that XP22 was a really nice sweetspot.  I could live with the 12 and would love the 32.  But I dug the 22 for the cash.

Now XP12 vs the REF6... closer and might lean REF6 for me.  
smodtactical OP
979 posts
 
@roysq Thanks! Really interesting post. The XP12 even getting close to the ref6 is very impressive indeed! Too bad there was an XP22 for sale locally but I missed the deal. Maybe I'll wait for an XP32 to show up.
I do have an XP30 locally though but guessing the 32 is a big step up ?
roysq
32 posts
 
@smodtactical 

I liked the REF6 more than the XP12 in the midrange from my recollection.  The XP12, a bit better in the bass.

I really think the XP22 and XP30... awfully close.  They both pop-up on sites occassionaly (a-gon, usam... it's one thing I like about hi-fi shark, you can shop for everything as it's a nice aggregator website).  Looking at Hi-fi shark right now, there are xp32's, xp30's, xp22's..all out there in the USA.

My XP22 I purchased used, my 150.8 was used, and my 250.8 was new.  No big deal. Pass is great and while I've not had an issue with any pass product, when I've e-mailed them they always take care of my questions very timely.

Just a great company.  But, lots of great stuff out there!  I happen to like Pass.  They are a USA based company, they are really responsive, and it's hard to find one of their products that doesn't sound at minimum "good" with just about anything.  Nelson and Wayne know how to build good sounding, good looking, and really well built gear.  

But, yes, I am a pass fan.  BUT, the sound came first.
smodtactical OP
979 posts
 
Roy only thing is im in Canada. I do have a local guy selling xp30 as I said. Maybe I can wait for xp32 or 22 to show up locally. Or maybe to get one of the US guys to ship.

Ya love Pass sound its awesome. But I am curious about tubes for sure. But if SS can do what tubes do, the tube magic then id love that because then you get the SS reliability.
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