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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
guidocorona OP
4,298 posts
 
Hi Dave, seems Appogg prices will be $850 to $900 per unit, depending on size. Guido
guidocorona OP
4,298 posts
 
Here is the Appogg priceing/eCommerce page:
http://appoggsystems.com/purchase/index.php
jimjoyce25
215 posts
 
You might consider trying Mystery Feet from Marigo. They made a very significant improvement in my system (detail, resolution, lack of distortion).

Plus, they come with a 30-day free trial period.
clavil
254 posts
 
Hi Guido,

thank's for the news. Are you still using Cardas Golden Ref. cables?

I heard for first time yesterday the JR 312. I had the impression it's quite different to the 501 + PC1 but as it was not my system it's nothing more than an impression: very sweet and warm sound, has made Avalon's Ascendant sound like I have never heard them before, I didn't knew they could produce such a bass. Transfiguracion of these loudspeakers. With Amati Anniversary quite good too.

Regards
guidocorona OP
4,298 posts
 
Hi Claude, the JRDG 312 is an amazing amp. . . I have not compared it side by side with 501 monos with PC-1s, so I can't really comment on differences.

I am no longer using Cardas Golden Ref speaker wires and power cords. I am now using Furutech Evolution II wires throughout the system. . . Extremely linear, quite extended, and no emphasis or trofs that I can tell. . . and very graceful treble.
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