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
Valhalla is the best cable I have had in my system with 301 monos. The trick was to have Valhalla all the way. When I had Valhalla only partly in the chain, the sound was too bright and edgy, but all Valhalla has made my 301 shine as absolutely fantastic amps. I have compared against Stealth Indra, Synergistic Research Apex/Precision Reference and Wireworld Gold. Valhalla is the clear winner.
In another system (Cary, Sonus Faber) I have done the same test, in that system Synergistic was the winner, Indra second and Valhalla third.
Cappuccino, it is good to know that complete Valhallas are synergistic on a JRDG-based system. . . Jeff Rowland currently favors Nordost Valhallas. . . I believe he may have them on his entire reference system in Colorado Springs. I have no details on the CES setup as yet.
The Criterion was definitely plugged in, no battery power.

The room sounded very good today. I ran through a couple of my test CDs and found the system to be less bright and more neutral. Bass was very good too. A very even presentation with a large sound stage. Many rooms had issues with depth and/or off centered image due to the room layout. Not the Rowland room.