Digital Processor Reviews

Sort By:  Post Date TitlePublish Date

AudioQuest DragonFly Cobalt USB D/A-headphone amplifier

Unlike the world of recorded music, where streaming has decimated sales of physical products, book publishing is seeing the reverse trend: sales of eBooks are declining while those of both hardback and paperback books are recovering. I have been a book junkie all my life—the two long walls of my listening room are lined with floor-to-ceiling bookshelves and I have many boxes of books in storage—but these days almost all my book reading is with the Kindle app on my iPad mini.

Timbre Technology TT-1 D/A processor

As the sides of the slim-line Timbre Technology TT-1 DAC are radiused rather than flat, it's elegant compared to its typical boxy competition. While the TT-1's handsome shape stands out more than your average audiophile device, its curved sides help create a stronger, less resonant shape than the usual box, and serve as just one of the many elements contributing to a high degree of mechanical integrity and damping.

PS Audio Digital Link II D/A processor

Looking at the Digital Link II's build quality and circuitry, it's hard to believe that it can sell for $499 at retail. The Digital Link II shares the same appearance as PS Audio's SuperLink and UltraLink processors, but has a 4"-shorter chassis. The ¼"-thick front panel uses PS Audio's familiar touch-sensitive switches that turn the unit on and select between coaxial and optical inputs. LEDs above these switches indicate when the unit is locked to the digital source. A third LED illuminates when power is applied.

dCS Bartok D/A processor/headphone amplifier

The Vivaldi—the four-box flagship product from digital audio specialists dCS—is, in my opinion, misnamed. Vivaldi the composer was an asthmatic priest who worked in an orphanage for 30 years and died in poverty. The Vivaldi stack dedicates four separate products to converting into music digital code stored on silver discs (although you can play music—very well I am sure—on just one box, the Vivaldi DAC, footnote 1). Together, those boxes weigh about 148lb and cost some $115,000. The most expensive is the CD/SACD transport; leave that off and you can save 51lb and $42,000.

Sumo Theorem D/A processor

The $799 Theorem was originally shown at the 1992 WCES in a very small chassis that prohibited adding features or upgrades. Sumo has since become more ambitious, putting the Theorem in a full-sized chassis and offering several upgrade options that would have been impossible in the truncated version.

Theta Digital Cobalt 307 digital processor

One measure of a high-end product designer's talent is the musical success of his top-of-the-line product. This is his statement to the world of what he can accomplish—a kind of "personal best" that defines the upper limits of his talent. Because he knows of no way to make the product better, the component stands as the ultimate testimonial to his skill.

Theta DS Pro Generation V digital processor

Some high-end audio companies develop reputations for having a particular "sound." This reputation develops when every product the company makes has a similar sonic flavor. These products appeal to certain customers who like the company's sound, and who therefore tend to stay with that company's products year after year. Unfortunately, such an approach can limit a manufacturer's appeal to a broader audience.

Theta DS Pro Generation III digital processor

A visiting manufacturer recently expressed the idea that digital processors and transports are the worst value in high-end audio. He contended that, because they all sound bad, their differences and degrees of imperfection are meaningless. In his view, the very best digital differed very little from the worst. His advice? Buy a moderately priced CD player and enjoy your LPs.

dCS Rossini v2.0 firmware upgrade

British digital-audio specialists dCS (Data Conversion Systems) has been on a roll. Since the September 2015 introduction of the Rossini DAC ($23,999), the single-box Rossini Player ($28,499), and the Rossini Clock ($7499), they've released a number of new products and software/firmware updates. In 2016 came network firmware updates that established dCS DACs and Players as Roon endpoints. 2017 brought improved (v1.05) software for the Rossini DAC and Player, and 2018 an update to process MQA, followed by the October 2018 introduction of the Rossini upsampling SACD Transport ($23,500—see John Atkinson's review in the May 2019 Stereophile). Then, in January 2019, dCS released their Rossini v2.0 software, which applies to both the Rossini DAC and the Rossini Player, and which is offered free to Rossini owners.

Pro-Ject Pre Box S2 Digital D/A headphone amplifier

I first met Pro-Ject Audio Systems' founder and president, Heinz Lichtenegger, in 2016, at the US launch of the Austrian company's The Classic turntable. His passion for all things hi-fi was so intense I thought his head might explode. Gleeful in his mission to bring high-end audio to the people at less than typical high-end prices, Lichtenegger and Pro-Ject can fairly claim bragging rights for their entry-level Debut Carbon (DC) ($460 and up), one of the world's best-selling turntables.
Advertisement
Advertisement
Advertisement