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Rudistor RP010B is one fine amp. (For now using Gradio PS1000s.)

post #1 of 57
Thread Starter 

I finally got around to setting up my RP010B and I am mightily impressed. I just sat down to do some evaluation with a stack

of CDs and I could not stop listening. It may sound like faint praise, but after years of amp/phone combos with "issues",

there are really none here. And I was just listening to some old Time/Life early 80s CDs that are so-so recordings.

Pace and timing, smooth rounded vocals, very nice extended but pristine, shimmering, natural highs.


The nice thing is that the amp is revealing but not abusive. It is revealing in that you can hear the quality AND imperfections of the recording (like some grain in 80's vocals from, say, Foreigner or Hall+Oates), but the amp somehow transforms it into something

sweet. I just felt a kind of sheer joy with this amp. My previous solid state amp was a 2004-updated 1999 Headroom Max.


I also have an RSA B52 that I also love (and I do think, overall is better with lots of tube-goodness and I thought only tubes were

the way to go), but the Rudistor is very close, and could fool me with a tube-like presentation.

(Tubes have a way of curing the ills of bad recordings without masking the truth, but now I see that solid state can do that

also with the RP010B).


The Rudistor is one of those components that makes just has a soul; it's a real work of art, a classic.

I just kind of lean into the sound. Vocals are real and not mechanical, percussion in fast with perfect decay,

strings are not strident with just the right amount of bite, piano is resonant and not clipped but warm an rich,

horns and woodwinds are airy and full, bass is integrated and controlled and has just the right amount of depth

and is not boomy at all. Like I said, it really sounds tube-like. (The B52, when warmed up, has extra tube goodness,

a kind of rush that is addictive that I love, and it still has the edge here.)


So I thank Rudi (and Ray) for their fine, fine work. I without hesitation think the RP010B is the king of solid-state

and is just plain awesome.


System for the Rudistor:

Ordinary Wall outlet-->Hydra 8--->EMM CDSA cdp--->Jeff Rowland Capri preamp-->Rudistor RP010B-->Grado PS1000s.

ICs:Stealth Indra XLRs from cdp to preamp, Stealth Indra RCAs from preamp to Rudistor.

Power cables:

TG SLVR cords on cdp, TG 688 cord on preamp, Stefan Endorphin Ribbon cord on Rudistor,

Shunyata Anaconda cord on Hydra 8 to wall outlet.

Gradio PS1000s in stock form, single ended 1/4inch plug into Rudistor Low-Impedance jack (with supplied Grado

extension cord).

post #2 of 57

spritzer and KG are going to have a fit!

Any way congratulations, enjoy the music!

post #3 of 57
Thread Starter 

Thanks. I only know what I hear. I have been fooling around with amps and headphones for many years (Stax Omega/007t, Other Stax combos, Headroom, some RSA  and Luxman solid state) and what I have now is finally what I would call great. I will try some of my other

phones when I get time and report back. I'm just sorry I didn't break down and get Rudi's amp before now. For the cheapskates out there,

I would call it a real bargain in the U.S. with the current Euro valuation. Yep, the RP010, IMHO, is a bargain. I'm cheap; all the other

equipment in this system (except for a couple of power cords) I bought used.

But I would pay even more for a new RP010B for how it sounds.

post #4 of 57

I love mine but every time I mention RudiStor some people don't like it.

I don't care how it's designed, be it outdated or state of the art.

Every time I listen to it I enjoy the music and that's all I care about!

post #5 of 57
Thread Starter 

Yeah, I noticed all the criticism, but here on head-fi and elsewhere, I kept seeing lots of from-the-heart praise that seemed very genuine,

so I went for it. And dealing with Rudistor went fine; all my emails were answered right away and it shipped in about 2-3 weeks as

promised with no hitches. DHL shipped it virtually overnight. And the amp has no problems at all. I considered a Beta22,

but I hate lots of heat and I didn't want a 2-box affair, either.

post #6 of 57

Are you getting the Chroma?

post #7 of 57
Thread Starter 

No, I have too big a collection of phones already, and I have the HD800s (with Complement cables), T1s, and the PS1Ks,

and I like them all (for different amps, different music, different moods). And I have 650s, 701s, and a bunch of others I need to sell.

post #8 of 57

I totally agree with you. I've own the RPX-33 MkII and the RP07 Lite. Now I own the RP010B MkII for about 1 1/2 years and totally love it especially with low impedance cans. For high impedance I use my Woo WA5-LE. Having both I can't be happier.

post #9 of 57

I owned the NX02 and I enjoyed it tremendously with my PROline 2500 and Denon D5000 (w/ MarkL mods).

post #10 of 57

The RP010B MKII  compares favorably to the BA with upgraded tubes.

The combination with balanced Ultrasones (sorry spritzer, wrong maker again) is unbeatable.

I too have a nice selection of cans but the Chroma will be on my short list.

I owned an NX-33, that I now regret selling, which also sounds great.  

post #11 of 57
Thread Starter 

Update: I've had my RP010B for several months now, and it's just brilliant, especially with balanced phones. It tames the excess piercing highs in lots of phones, especially balanced ones, but keeps great resolution at all parts of the spectrum. Rudi just doesn't get enough respect for this amp. It's a classic and worth every penny and then some for me. With my balanced T1s (Zeus cable) and HD800s (DHC cable) I just can't stop listening to this thing. If you can afford it and want an amp, this should be high on your list. I'm never giving up mine. It runs cool too, great for summer.


I said earlier that I was using a preamp between my source and the headphone amp. I got rid of the preamp and just go direct and the sound quality is off the charts now. I like Rudi's non-stepped volume control, too. Nothing like a continuous level adjustment for me.

Edited by rgs9200m - 5/12/11 at 10:07pm
post #12 of 57

too bad rudi doesn't make rp010b no more.  i got this couple months ago and i do enjoy this alot.  now i need to get a balanced headphoneeek.gif

post #13 of 57

the price for rp 030 has been reduced to 4200$ from 4999$ lately. A freind who owns both prefers the new model although this guy is not going to sell the 010.

Edited by fdhfdy - 5/13/11 at 10:40am
post #14 of 57
Originally Posted by fdhfdy View Post

the price for rp 030 has been reduced to 4200$ from 4999$ lately. A freind who owns both prefers the new model although this guy is not going to sell the 010.

Why the preference for the 030? What are the differences in sound? I am courious becuase I own the 010.


post #15 of 57

According to him, the 030 is more revealing and transparent, and matched quite well with their own md1 headphone. He has a few expensive refined sources, and 030 is able to bring out more details (good or bad) out of recordings. The fellow also has rp 1000 which is much better than the both iho. He called rp 1000 "super natural amp". Thats all from him, I personally only heard RP 010 which is a great sounding amp.




Edited by fdhfdy - 5/14/11 at 3:32am
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