Rossini APEX DAC
This single-box digital music player features the legendary dCS APEX Ring DACTM and signal processing platform plus a custom high performance UPnP music streamer.
Rossini plays music through an array of industry-standard USB, AES and S/PDIF digital inputs, and can stream over Ethernet from a NAS drive or online music services such as TIDALTM, QobuzTM, DeezerTM, SpotifyTM, Internet Radio and from Apple devices via AirplayTM .
Designed for flexibility and ease of use without compromise, Rossini uses the very latest dCS Digital Processing Platform and Ring DACTM technology, originally developed for the flagship Vivaldi series. Its single FPGA brings improved signal processing and superior flexibility, effectively making it future-proof.
Rossini DAC has a powerful new user interface, plus a custom control app that lets listeners manage their music playback from any source in an elegantly simple way – accessing music streaming services, digital and UPnP sources from one control point. The Rossini app also features an intuitive install and configuration wizard for ease of set-up.
Featuring DXD upsampling as standard, the multi-stage oversampling design offers optional DSD upsampling plus an extensive selection of DSP filters to suit individual taste and music choice. The network streaming functionality within Rossini DAC is unparalleled in its processing power and jitter performance, and currently runs at up to 24-bit, 384kS/s and DSD128, supporting all major lossless codecs, plus DSD in DoP format and native DSD.
Rossini supports the simple yet highly effective dCS ‘auto clocking’ architecture as used in Vivaldi, which minimises jitter and improves sound quality significantly.
Designed and made in Great Britain to the highest standards, Rossini’s elegant chassis uses aerospace-grade machined aluminium with internal acoustic damping panels to reduce sound-degrading mechanical vibration and magnetic effects. Multi-stage power regulation is employed, with twin mains transformers to isolate the analogue, digital and clock circuitry.
APEX is a new, enhanced version of the dCS Ring DAC: the Digital to Analogue conversion system found inside all dCS DACs. First developed for our professional audio products, this unique system has been subject to continuous development and refinement over the past three decades, and remains renowned for its technical and sonic performance.
With APEX, we’ve reconfigured the Ring DAC’s circuit board and developed a new analogue output stage. This has allowed us to further reduce distortion, and increase linearity, resulting in a range of measured and sonic improvements – including an even greater sense of dynamic drive, detail, finesse and vitality.
Upsampling Network DAC.
Silver or Black.
444mm/17.5” x 435mm/17.2” x 125mm/5.0”. Allow extra depth for cable connectors.
dCS proprietary Ring DACTM topology. Operates at 6MHz (Map 1 or 3) or 3MHz (Map 2).
Network interface on an RJ45 connector – Acts as a UPnPTM renderer in Asynchronous mode, streaming digital music from a NAS or local computer over a standard Ethernet network, decoding all major lossless formats including FLAC, WAV & AIFF at up to 24 bit 384kS/s native sample rate, plus DSD/64 & DSD/128 in DFF/DSF format.
Other supported formats include WMA, ALAC, MP3, AAC & OGG.
Some formats are limited to lower sample rates. Accepts data streamed from an iPod, iPhone or iPad via Apple AirPlay, 44.1 or 48kS/s only. Network Loop Out connector on a second RJ45 connector. USB 2.0 interface on a B-type connector operating in Asynchronous mode, will accept up to 24 bit PCM at up to 384kS/s plus DSD/64 & DSD/128 in DoP format. Operates in Class 1 or 2 mode.
USB-on-the-go interface on type A connector operating in Asynchronous mode, streams digital music from a flash drive at up to 24 bit 384kS/s plus DSD/64 or DSD/128.
2x AES/EBU on 3-pin female XLR connectors.
Each will accept PCM at up to 24 bit 192kS/s or DSD/64 in DoP format. Used as a Dual AES pair, it will accept PCM at up to 384kS/s, DSD/64 & DSD/128 in DoP format or dCS-encrypted DSD.
2x SPDIF on 1x RCA Phono and 1x BNC connectors. Each will accept PCM at up to 24 bit 192kS/s or DSD/64 in DoP format. 1x SPDIF optical on a Toslink connector will accept PCM at up to 24 bit 96kS/s.
Output levels: 0.2, 0.6, 2V or 6V rms for full-scale input, set in the menu. Balanced outputs: 1 stereo pair on 2x 3-pin XLR male connectors (pin 2 = hot, pin 3 = cold).
These outputs are electronically balanced and floating.
Output impedance is 3Ω, maximum load is 600Ω (10k-100kΩ is recommended).
Unbalanced outputs: 1 stereo pair on 2x RCA phono connectors.
Output impedance is 52Ω, maximum load is 600Ω (10k-100kΩ is recommended).
Wordclock I/Oworldclock Io
2x Word Clock Inputs on 2x BNC connectors, accept standard word clock at 44.1, 48, 88.2, 96, 176.4 or 192kHz.
The data rate can be the same as the clock rate or an exact multiple of the clock rate. Sensitive to TTL levels. Word Clock Output on 1x BNC connector. In Master mode, a TTL-compatible word clock appears on this output.
Full decoding and rendering of MQA data from the Network and USB2 inputs. Final rendering of unfolded MQA data only from the other inputs.
24-bit data: Better than -113dB0, 20Hz-20kHz unweighted. (6V output setting).
L R Crosstalk
Better than -115dB0, 20Hz-20kHz.
Better than -105dB0, 20Hz-20kHz.FiltersPCM mode: up to 6 filters give different trade-offs between the Nyquist image rejection and the phase response. DSD mode: 4 filters progressively reduce out-of-audio band noise level.
User selectable PCM upsampling to DXD, DSD or DSDx2.
Loaded from CD-R via PCM digital inputs or PC via USB input. Download and update functionality available via dCS Mosaic App.
dCS Mosaic App for Unit Configuration and Music Playback. RS232 interface (controlled by a 3rd party automation system). IR remote control – dCS premium remote control available as an optional extra.
Factory set to either 100, 115/120, 220 or 230/240V AC, 50-60Hz.
23 Watts typical / 28 Watts maximum.
Windows Vista / 7 / 8.1 / 10, Mac OSX 10.10. dCS USB driver is required for Windows in Audio Class 2 Mode.