guidocorona

Responses from guidocorona

Class D amp with Tube Preamp Combo?
"I have a Supratek Sauvignon using balanced IC's into a Spectron M3 SE and the combination is wonderful."And there you have it guys. . . all great switching amps driven by great tube pres. . . spectron, Rowland, NuForce, Bel Canto. . . and they wi... 
Class D amp with Tube Preamp Combo?
Hi Larryi, JRDG has made many amps in the course of their history. Which model did you listen to? 1, 201, 9, 3, 5, 112, 301, 7, 302, 7M, 6, 8, 312, 12, 501, 8HC, 9T, 102, and a few more? Some are switching amps, and some are not, some have been gr... 
New Rowland Criterion 2-chassis battery pre
Switching amplification is a relatively new technology as applied to the high end. . . as it gains more ground on the North American marketplace, it is inevitable that it will also garner more coverage by online and print publications. . . . and w... 
New Rowland Criterion 2-chassis battery pre
It's a chicken and egg situation involving both manufacturers and magazines. . . difficult to say where it starts. . . but end result is that there are little reviews and little advertising. . . and everyone loses, manufacturers, magazines, and co... 
New Rowland Criterion 2-chassis battery pre
SAG, there is probably some amount of positive correlation between advertising presence and review coverage in most magazines. . . after all. . . somewhat got to pay the bills, and even unbiased reviewers and editors need to eat at least once per ... 
Class D amp with Tube Preamp Combo?
Hi Dave, did you mean Spectron digital amps rather than Spectral? Spectron Mus 3 is a fabulous switching amp!In answer to the original question, I have heard several times Bel Canto Evo 2 mk.2 monoblocks driven by a VTL 6.5 in balanced mode. . . a... 
New Rowland Criterion 2-chassis battery pre
Hi Pinkus, I am also among those who would like to see reviews of some of the current crop of JRDG gear appearing in North America print/online publications. Guido 
New Rowland Criterion 2-chassis battery pre
Hi French_fries, I agree with you. . . direct comparisons of older Concerto, Synergy and Coherence pres with current Capri are missing. If anyone in the greater Austin area has any of these legacy devices on hand, I'd love to get together and do s... 
New Rowland Criterion 2-chassis battery pre
Hi Keith, you are right, specs tell very little. As soon as I have some better info I will post it, as I already said above. Reason I created this thread is that as I am extremely fond of the extant little Capri pre, I can't wait to listen to a mu... 
New Rowland Criterion 2-chassis battery pre
Here is one more tidbit, extracted directly from the specs published this far. . . the output impedance of Criterion is 60Ohms for both balanced and SE operations. This may imply that the device will be fully compatible with almost any amp you con... 
Audio Research REF 3
Hans, the bypass caps installation is apparently a simple matter that can be done by any technician. ARC supplies instructions/schematics with the caps. Best to contact ARC directly and speak to Leonard. Guido 
New Rowland Criterion 2-chassis battery pre
Looks like I already goofed and posted incorrect URLS for the images. . . so here they are again:Front view:http://jeffrowland.com/Criterion-front.htmRear view:http://jeffrowland.com/Criterion-back.htm 
Jeff Rowland's Continumm
Jeff Rowland has finally updated its web site with a page dedicated to the new Continuum 250 and 500. Here it is:http://jeffrowland.com/Continuum.htmAnd here are some specs for all lazybugs (grins!):* * * *Specs: 250 Version / 500 Version Output P... 
Audio Research REF 3
Yes, Ref 3 is much more dynamic and quieter than LS25 Mk2. The old ARC silver-gray sheen is gone completely. The sound is very focused, has loads more authority, and harmonic complexity than LS25 Mk.2. . . . but it is not at all leaner. On the oth... 
Audio Research REF 3
I have owned a Ref 3 for a couple of years. The lifespan estimates made by ARC for all tubes as applied in this device are extremely optimistic. The 6550C shows some sag at 900 hrs and usually needs to be replaced by 1100. In my unit the driver tu...