Raysonic 168


Thanx for the responses on the 128. I see now the 168 has been released. I saw what Underwood Audio has done to the 128 as far as mods go, it looks like some things done in the mods have been incorporated in the 168.
Has anyone yet heard the 168? I am hedging my bet between the two for an upcoming purchase.
hockeydad
Fatcataudio, Since you are on here, please give an opinion on the 2 machines?

I honestly feel after seeing some of the pics on the internals side by side that the 168 has found a way to reduce build and parts costs with using no doubt some more current Dac's, but all the analog parts and layout seem "cheaper" for example only because its obvious the Auricaps are used in the new one vs. the Mundorfs in the 128, I know I have used both in other units in the past, not digital components, but none the less heard these caps head to head and always prefered the mundorfs, and they are a bit more money. There are several other things I note that have been done a bit more conventional in the 168 vs the 128, I am not saying this has anything to do with final sound, just an observation.

The 128 losses the HDCD but gets a slightly advanced redbook chip, however this really means nothing today.

And the main advantage for some users is the 168 adds the volume.

So not saying the build or parts in the 168 will make it sound better or worse, but would like your opinion on the actual differences or flavors of the units.

Thanks
Mrtennis,

You deliberately called another dealer (me) to inquire about this product when you had no intentions on working with me on the purchase. You did not let me know you already had the unit and continued to talk as if you were an interested buyer. You need to work with your local dealer who supplied you with your CD168 (or whoever supplied it to you). That is the problem.
Undertow, its quite easy and economical to change the two .22uf film caps to whatever type you prefer. The XLR outputs are capacitor free, so you can compare your "experimenting". Although, there are probably some extra op-amps in the XLR signal path that may scew the results.
I have experimented with tube rolling the CD168. The two center tubes are reported to affect the RCA outputs and the outer two the XLR. However, my findings are the same as that repoted by Newbee on his CD128. Changing either the inner or outer pair will affect the sound from both the RCA and XLR outputs. I have settled for now on a pair of Siemens CCA 6922 in the center and a pair of Amperex White label 6DJ8 "D" getters for the outer positions. Seams to meld the Siemens and Amperex sound into one cohesive sonic signature.
Reb, Glad to hear it wasn't my imagination. It also explains why I wasn't able to get the sound of the sonic signature from the tubes I was using unless I used all four of the same brand. Interestingly it makes the permutations seem infinite - perhaps not so good for the anal folks. :-)

BTW, how do you like the 168? Anything to compare it against? Have you heard the 128?