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New Rowland Criterion 2-chassis battery pre

Jeff Rowland Design has just created a page for its upcoming statement-level, twin chassis, battery powered full function preamplifier. Detail is still scant, but a little bit of info is already available, in addition to front and rear view pics. Here’s the page:
http://jeffrowland.com/Criterion.htm
And here’s the front view:
http://jeffrowland.com/Criterion-front.htm
And here’s the rear view:
http://jeffrowland.com/Criterion-back.htm

You will find a few specs already on the site. JRDG should be publishing more info in the next few weeks. I will post here as I receive it. in addition to the published specs that you can read on the page above, here are a very few additional tidbits that I have learned this far:

. Uses Burr Brown TI OPA1632 high speed fully differentially balanced modules.
. Includes phono stage.
. Uses standard NiMH D-cell batteries available in most electronics stores, loaded in 2 rear-inserted tubes of power supply chassis.
. Capable of AC/DC operation . . . will recharge batteries on independent circuit during AC operation.
. Full remote control
. Target price $18K (not sure yet)
. Availability: probably early Fall 2008.
. Will be featured at RMAF in Soundings Hifi suite Marriott 503 or 505 from Oct 10th to 12th in Denver.

And sorry folks, I have not heard this device yet. Nor I have any good third party reports on its sound. Any speculations on Sonics from my part would be just. . . pure speculations. I’ll keep everyone posted as I learn more.

Guido
guidocorona
brazcole
63 posts
 
Raquel, I don't known if you will come back in this thread, because Guidocorona had answer your question, for what I could understand with my little English, but I bought my Model 312 only because you and Guidocorona wrote very well stuffs about JRDG amplifiers. And because I also read the Model 312 is so sweet that looks like there are tubes hidden inside.

You said in another thread that the best combination is a solid state preamp with tube amplifier and explain the reasons.

When I said that statement in a Brasilian Audio Message Board, the guys said I was wrong and the best combination is the opposite, I mean, a tube preamp with a solid state amplifier. Because severals of them have the Reference 3 or a BAT preamp. As I trust in you because you post many very tech messages, I reply that they were wrong and I transfer your statement from Audiogon (without putting your name) as a review from one of the best reviwer in Audiogon. They still said the reviwer was wrong.

First, is very nice to known that you have a Coherence, because I want to keep my Criterion a lot of years.

And, if it doesn't bother you, could you tell if you still prefer a SS preamp with a tube amp or you change your mind.
clavil
254 posts
 
Hi Guido,

did /will you have the oportunity to compare the Criterion to an FM Acoustics preamp like the 255 for example ?

This would be very interesting!

Kind regards
guidocorona OP
4,298 posts
 
Braz, we could argue the fine points of which technology best couples what other technology until we turn blue in the face. . . In reality it does not matter too much at all. . . what matters are only your ears.. . and the particular combination of a real preamplifier with an equally real amplifier and how you react emotionally to them. . . The technology they use is purely incidental, and even the mutual impedance compatibility does not tell the whole story. Only your heart can. G.
brazcole
63 posts
 
The technology they use is purely incidental...
That's it.
Well done, Guido.
raquel
841 posts
 
Brazcole:

I just sent you an e-mail in Portuguese.

Abracos,
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