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-   -   How does the BOSOZ really sound? (http://www.diyaudio.com/forums/pass-labs/23676-how-does-bosoz-really-sound.html)

kevyjo 4th December 2003 02:16 PM

How does the BOSOZ really sound?
 
Forgive me, this is going to be a rather open ended thread (you guys probably get irritated with total newbies). I've searched the threads but could find little comparing how the BOSOZ sounds compared to commercially available products. I really enjoy the DIY process, and haven't the money to spend on any preamp resembling high end, but before indulging in such a project I'd like to know if it would get me alot closer to what im looking for sonically.
I replaced my old Sansui AU-D11 II integrated amp with an NAD C370, the Sansui had several issues because of its age and rough life, and didn't really work well with the way I wanted to set it up, but it really sounded good. The NAD in comparison sounds OK, but I really lost the midrange magic. Instead of the images feeling palpable, they seem drained. The soundstage is much bigger, but lacks the depth of the Sansui.
I thought upgrading the preamp would be a good start, and had looked at commercially available products like audio refinement and atoll, but started thinking of going the DIY route, found the pass labs site and this one and started getting excited. SOOOO, I invite anyone so generous to contribute their opinion about the sound of the BOSOZ to be as verbose as they want to.

Nelson Pass 4th December 2003 07:20 PM

Different. ;)

Mad_K 4th December 2003 07:25 PM

Doesn't really "sound" like anything ;)

Just music :D

kevyjo 4th December 2003 07:29 PM

OK, I get it.....

hifimaker 4th December 2003 07:39 PM

Also what is the difference between BOSOZ and x-Bosoz? Is the X-BOSOZ the same as teh Aleph P?

Thanks,

-David

kevyjo 4th December 2003 07:42 PM

Well, if it doesnt sound like anything, thats exactly what I'm looking for, not sounding like anything seems the pinnacle of what us crazy folk strive for. It begs the question though, if the BOSOZ doesn't sound like anything, and Mr. Pass says there are certainly better sounding preamps out there, does that mean that the BOSOZ doesnt sound like anything, but there are other preamps that sound less like anything? or the other preamps sound better in sounding like nothing? (thank you by the way, Mr. Pass for responding, even with such a "verbose" response, lol.)

HeadSh0T 4th December 2003 07:45 PM

BOSOZ sounds very clean and uncoloured. it's an excellent line stage.

moe29 4th December 2003 10:03 PM

...what is the difference between BOSOZ and x-Bosoz?

The BOSOZ or BZLS is the unmodified circuit provided by Mr. Pass
in his excellent article Balanced Zen Line Stage for the magazine
Audio Electronics - 5/97... and is available on the PassDiy website.

The X-BOSOZ is a modified BZLS incorporating Super Symmetry or X.
Check out the X-SOZ thread for more information.

The Aleph P was a Pass Labs preamp in production up until '97 or so.
Mr. Pass has mentioned that the BZLS and Aleph P are closely
related... one difference being the Aleph P's attenuator.

IMHO the BZLS is an excellent preamp - and has great "sound", others
on this Forum have stated that the Aleph P is better... probably
true - it is more refined and has the advantage of being a former
Pass Labs offering.

kevyjo 4th December 2003 11:23 PM

Well, since I havent even started the project, I could certainly go the x bosoz direction. I'm still attempting to educate myself on the basics. It seems most here would consider the x bosoz at a higher level than the bosoz, unless I am mistaken. If any link in the audio chain was to err, I'd rather it err on the warm side of course. As I am pouring over the details, am I to understand that it is fairly easy to modify a bosoz into and x bosoz?

Coulomb 4th December 2003 11:24 PM

I can hardly even tell if my SOBOZ is doing anything other than offering gain.

Anthony


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