Designed for complete flexibility and unrivalled musical expression, the Rossini APEX DAC features our pioneering Digital Processing Platform, a high-performance UPnP streamer and the latest generation dCS Ring DAC APEX
APEX DAC Key Features
- Latest generation dCS Digital Processing Platform brings state-of-the-art signal processing and flexibility
- dCS Ring DAC APEX, as used in Vivaldi playback system, delivers enhanced sonic and technical performance
- High quality streaming from TIDAL, Qobuz, Deezer and internet radio via the dCS Mosaic Control app
- Roon Ready, AirPlay, Spotify Connect and UPnP compatible
- USB, AES, Dual AES and S/PDIF digital audio inputs.
- Accepts encrypted SACD data from dCS Transport via Dual AES inputs
- Multi-stage DXD oversampling design with optional DSD upsampling; user-selectable DSP and DSD filters.
- Auto clocking system improves ease of use and minimises jitter.
- Multi-stage power regulation and twin mains transformers isolate analogue, digital and clock circuitry.
- Firmware-upgradeable for future functionality and performance upgrades.
- Features a full MQA decoder. This MQA implementation is unique, as it is the first opportunity to enable a DAC which, by providing exact rendering to beyond 16x (768 kHz), matches the desired temporal response with very low modulation noise.
Specifications:
| Type | Upsampling Network DAC |
| Chassis Options | Silver or Black |
| Dimensions | 444mm / 17.5 x 435mm / 17.2 x 125mm / 5.0 (Allow extra depth for cable connectors) |
| Weight | 15.6kg / 34.3lbs |
| DAC Technology | dCS proprietary Ring DAC topology (6MHz in Map 1 or 3; 3MHz in Map 2) |
| Inputs | Ethernet (RJ45), USB 2.0 (B-type), USB On-The-Go (A-type), 2 x AES/EBU (XLR), Dual AES pair, SPDIF (RCA, BNC, TOSLINK) |
| Supported Input Formats | PCM: 24-bit 44.1 384kS/s, DSD: DSD/64 & DSD/128 in DoP or DFF/DSF format |
| Outputs | 1 x pair balanced (XLR), 1 x pair unbalanced (RCA) |
| Output Levels | 0.2V, 0.6V, 2V, 6V rms (set in menu) |
| Output Impedance | Balanced: 3; Unbalanced: 52 |
| Max Load | 600 (Recommended: 10k-100k) |
| Word Clock Inputs | 2 x BNC (44.1, 48, 88.2, 96, 176.4, 192kHz) |
| Word Clock Output | 1 x BNC (TTL-compatible Word Clock output in Sync Mode) |
| MQA Support | Full decoding & rendering from Network and USB2 inputs, final rendering from other inputs |
| Dynamic Range | 24-bit data: Better than -113dB0, 20Hz-20kHz unweighted |
| Distortion | Better than -115dB0, 20Hz-20kHz |
| Intermodulation Distortion | Better than -105dB0, 20Hz-20kHz |
| PCM Filters | Up to 6 filters to balance Nyquist image rejection and phase response |
| DSD Filters | 4 filters to reduce out-of-band noise; Filter 5 improves transient response |
| Upsampling Options | User selectable PCM upsampling to DXD, DSD, or DSDx2 |
| Software Updates | Downloadable via dCS Mosaic App or CD-R |
| Control | dCS Mosaic App, RS232 interface, dCS Universal Remote (optional) |
| Power Supply | Factory set to 100, 115/120, 220, or 230/240V AC, 50-60Hz |
| Power Consumption | 23 Watts typical / 28 Watts maximum |
| USB Audio Support | USB Audio Class 1 & 2 fully supported by Windows 10/11 & OSX 10.10 or later |
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