Looser101

Welcome Kontai. Thanks for the informative review. Well... just over a week ago i bought myself the MS Pros. They are very much as you described. Took me a few days to get used to the sound signature. Coming from the MS2i, it was quite a change. Having heard the RS-1s a couple times (from memory), the MS-Pro is more neutral and not as warm as the RS-1. Definitely a step towards the HP-2. So far I am happy with my purchase, since I was looking for a more neutral sounding headphone. Thanks to all who provided their input, and pointing me in the right direction. ~Renato

I was just reading it now, thanks. Btw. They will be powered by a tube amp (not very tubey), so I'd be interested in comments on that in particular. ~R~

No, but I will since you recommended it. I figured I'd post here, since there is too much FOTM and "this is the best evah" on HF. ~R~

Looking to upgrade from MS-2i. I've heard the RS-1 and I like it alot. Never heard the MS-Pro. Any information on the difference in sound signature would be appreciated. All recommendations would be welcome. Renato

My Aikido uses 6CG7 on the input and 6H30 on the output, as already posted. The PSU is a simple CLC for the B+. Heater supply is powered by a switcher and then regulated down to 12VDC by a standard LM350 regulator. The beauty of the Aikido design is its unique rejection of power supply noise, this allows for a cheap and cheerful power supply. I haven't updated it in a bit but there is some more info here: http://renatod.googlepages.com/home -Renato

Interestingly, the Lclock XO3 and the NewClassD Clock were designed by the same person (also the zapfilter). The one you link to above is his latest and greatest. -R-

I suspect the biggest problem with the factory plastic screen is that some of the sound hits the hard plastic and is bounced back towards the driver...I can't see how this can be a good thing acousticly. I've heard Jay's K340 on several occasions now and the upper mids and highs are definitely not harsh at all. The highs are very clean with great extension. On the other hand they are very revealing so if your system is harsh or grainy you will definitely know it. I'd guess that Larry offers the mods as a package because he has found those mods sound best as a whole and leaving something out would compromise the sound signature he has worked so hard to achieve. Also, just to clarify, the cloth even though acousticly transparent is rather thick, presumably to provide some sound absorption thereby decreasing the high frequency response slightly while still providing increased clarity over the factory screen. The biggest problem with the K340 IMO is that it needs a powerful amp to drive them properly, otherwise they sound thin and lifeless. Properly amped they kick ass. -R- Hehe my first post.