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
"but don't be surprised to find out in 2011 that the jaw-dropping sound that you opted for now sounds "veiled""

Absolutely French_Fries! happened to me on a regular basis since 1967, when Dad 'upgraded' our home system for the 1st time since 1953. . . can't see why the 'veiling' of the past should stop any time soon, JRDG or not. . . . only my wife claims my stereo is good enough right now and for good! G.
Yeah, French_fries got it right. SOTA is somewhat like buying a computer or CDP, if you wait until things "settle down" you'll never buy. You just need to pick something near the top of the heap and jump in, then plan to go with it for a few years no matter what comes along.

Dave
Well,my approach is to "attempt" to acquire the best possible component choice to fit my sonic tastes,and pocketbook....

Then,as time goes by(if I really like the component)I see if it can be updated,to further improve something I already know is excellent,and works well,in my set-up!

I have done this with much of my stuff....but in the case of Rowland,I have been very successful!!

Mainly because Jeff is a superb fellow,who supports his products.No matter what the vintage!!

I have a two chassis 8T amp...Originally with the battery P/S...I've had the amp updated three times,by Jeff.He is very reasonable in the cost to update,based on the sonic return,IMO!

The latest update was to have two seperate "power factor correction modules" placed in the second chassis.No longer the battery anymore,which though very quiet,was slightly defficient in dynamics(but I still was quite satisfied)......

NO contest!!....The new P/S update absolutely blows away my previous battery P/S....Also,actually,the battery P/S has been gone for a few years.

I had originally had a "single" P/S module put in the second chassis(to replace the battery,and "it" was definitely quieter,if you can believe that,and "way more" dynamic),by Jeff(one of the audio Gods)....Even this basic P/S "single seperate module"(I now have a "dual module" configuration) significantly outperformed the battery,but the battery was "much better" than many would think....

Because I have a friend,with the single chassis 8t,who's system is almost identical to mine(lucky for me,in the long run)...I always felt the battery was quieter,and better able to allow depth/tone to develop.Yet his amp definitely could swing more dynamic punch....Not anymore.

This NEW double mudule,that I now have,is SO good,that even my "only tubes can do it" friends are "amazed"!!...THAT is BIG,since these guys truly believe SS is a non factor,in music....Of course I am laughing!..

Why,because though I have had superb tube set-ups in the past(and love tube sound),I now "know for certain" that the magic can be had,without the "significant" weakness of excessive heat!!...

My amp runs almost "cold",sounds embarrassingly great(if you think "only" tubes can do "it"),looks like a million bucks(it wasn't cheap),and keeps my room nice and comfy.

Of course,you have the "way relaxed personality,but amazingly knowledgable" back up of Jeff Rowland,here.So as I see it,my investment will keep me happy for a LONG time!

Just some thoughts.
i take it all back! that is to say, i will wait for a Criterion to appear on audiogon for 33% (or more?) off- some flavor-of-the-month guy will want to try tubes- and then, THEN i will POUNCE, like the audiophilic demento that i am, upon the 6 month old model, which probably hasn't even been broken in yet... it is after all a VERY nice preamp. let's just hope it doen't have any unforseen bugs with the batteries, or whatever.
batteries are nice, but the unit has to recharge them, use them up to a point and/or switch back to the wall, etc. i wouldn't mind if it just had a dead-quiet outboard power supply, period. and possibly THAT version would probably cost $5k less to build.