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
Hi Claude, your info and my own coincide .... I also heard about 725 towards year end, and 925 at an undefined time after that.

Guido
Hi to the forum,
Has any Jeff Rowland Criterion owners noticed that the control unit rocks slightly on the preamp, back left side? or is it just mine.
Thanks for any response.
Rowland ships Criterion with 4 Delrin balls that connect the audio chassis to the control unit. Have you put all 4 balls in place?? There is no apparent rocking motion possible with my own Criterion pre.

For more detail, se the article on stacking the Criterion Chassis on the JRDG Knowledge base at:

http://jeffrowlandgroup.com/kb/questions.php?questionid=397

G.
Hi Guido,
Yes I have used the Delrin balls supplied and have moved them around just in case one was faulty but it always rocks on the back left. I will check out the Knowledge base. Thank you.
Regards
Ian