2. amps-preamps
  3. 1216693488

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
dcstep
1,518 posts
 
Guido, the Appogg reminds me very much of the HRS M3 in construction. They only have pictures on their site far, so it's hard to know if there are physical differences.

Have you seen any pricing yet?

Dave
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
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