(07-11-2013 12:01)vd-two писал(а):  

(07-11-2013 09:27)romeo105 писал(а):  в беркли генераторы по спецзаказу.

Вот просто интересно, вы знаете какие? Видели и модель назовете? Или просто начитались?

не видел, не щупал, и на 100% не знаю. читал статью про беркли, и там было написано, что генераторы там такие, какие простому смертному не купить.

http://ostereo.ru/stereoapparatura/istoc...rtera.html
http://www.computeraudiophile.com/conten...sb-review/

Цитата:Design work on the Alpha USB began in 2009. At that time the clocking components used in the final production version of the Alpha USB weren't available. Berkeley Audio Design knew it wanted to use dual fixed crystal oscillators that performed to a certain level not seen in any digital audio interface product. Thus, 'Berkeley' was involved in co-developing new oscillators not yet commercially available. New computer audiophiles should understand that crystal oscillators are used to generate the clock signals for 44.1, 88.2, 176.4 kHz and 48, 96, 192 kHz audio. These components are critical to accurate sound reproduction. The entire Alpha USB development process was fraught with delays and less than desirable results. After rejecting early components from the vendor, "Everything just came together." said Michael Ritter. The final production version of the Alpha USB contains dual fixed oscillators. One for each sample rate family of 44.1, 88.2, 176.4 kHz and 48, 96, 192 kHz. Only a single oscillator is operational at a time. Even very good low jitter oscillators can produce relatively high levels of low frequency phase noise. Not so inside the Alpha USB. I was unable to obtain actual numbers for these specific oscillators, but I talked to an engineer from a competing high end audio company who was familiar with the products in use by Berkeley Audio Design. He stated a couple times that the low phase noise from these oscillators was unique and remarkable.