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
guidocorona OP
4,114 posts
 
Thank you Macro, your source is impeccable. . . I suspect this is just a matter of subtly different wording. . . not terribly important. . . truth is we haven't heard these devices yet. . . can't wait to find out how they sound.
macrojack
1,292 posts
 
Well Guido, I asked about the sound wondering if it would be more like the Models 6 and 8 than the recent ICE equipped pieces. That would be a question for Jeff and he isn't available just now. So we shall all be called upon to exercise the virtue of patience. Given the price of these things, I may need quite a bit more than patience. It will take a minor miracle or a major irresponsible charge.
guidocorona OP
4,114 posts
 
If they exceed the music performance of JRDG 312, currently my favorite amplifier regardless of underlying technology, I will be extremely impressed.
cappuccino
110 posts
 
I have a pair of the latest 301´s and also very interested to know how these new 925 amps will sound in comparison.

What I have found out during the years I have owned my 301 is that they are are extremely neutral, but also very sensitive to other equipment and cabling. You can get very different sound from them dependant of the rest of your gear. I think many have underestimated class D products because of this. As I see it the amps in the Rowland 300 series have a tremendous potential but require a lot of the owner to reveal this potential, maybe more than with traditional amps. Maybe that also is one of the reasons of slow adoption of class d amps in the high end market.
guidocorona OP
4,114 posts
 
Cappuccino, what design/sonic differences are there in the recent 301 amps vs the original series? I have heard that there some differences, but I do not know what these may be. Guido
More to discover