dCS Vivaldi APEX DAC dCS Ring DAC APEX™ hardware further reduces distortion and improves linearity for enhanced musical performance Utilises the latest generation dCS Digital Processing Platform for state-of-the-art measured performance and unrivalled fidelity Designed for maximum flexibility by accepting audio data from a variety of digital sources Flexible output configuration can be optimised in systems with or without preamplifiers Comprehensive clocking architecture plus an auto-clocking mode used in the Vivaldi range improves ease-of-use and minimises jitter USB interface allows easy connection to a computer, accepting PCM data at up to 24/384 and DoP (DSD/64 or DSD/128 over PCM) The interface runs in asynchronous USB mode, making the DAC immune to jitter from noisy computer master clocks Improved power supplies give lower running temperature and superior tolerance to AC supply variations Multi-stage regulation ensures sensitive analogue circuitry is unaffected by digital interference Separate power circuits for the digital and analogue sections further enhance the purity of the power supply Aerospace-grade machined aluminium chassis fitted with tuned acoustic damping panels reduces magnetic effects and vibration 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 Vivaldi APEX DAC Specifications Finish Options Silver or Black Dimensions 444mm (17.5”) x 435mm (17.2”) x 151mm (6.0”) high. Allow extra depth for cable connectors and space for airflow around the unit. Weight 16.2kg (35.65lbs) DAC Topology dCS proprietary Ring DAC™ topology, with choice of 3MHz or 6MHz operation Balanced Outputs 1 x pair balanced outputs on 2x XLR connectors. Output levels: 0.2V, 0.6V, 2V, 6V rms for full-scale input (menu settable). Output impedance: 3Ω. Maximum load: 600Ω (10k-100kΩ recommended). Unbalanced Outputs 1 x pair unbalanced outputs on 2x RCA connectors. Output levels: 0.2V, 0.6V, 2V, 6V rms for full-scale input (menu settable). Output impedance: 52Ω. Maximum load: 600Ω (10k-100kΩ recommended). USB Input USB 2.0 interface on B-type connector, accepts 24-bit 44.1 – 384kS/s PCM, DSD/64 & DSD128 in DoP format. AES/EBU Inputs 4x AES/EBU on 3-pin female XLR connectors, accepts 24-bit 32 – 192kS/s PCM & DSD/64 in DoP format. Dual AES Inputs 2 x Dual AES pairs, accepts 24-bit 88.2 – 384kS/s PCM, DSD/64 & DSD/128 in DoP format. SPDIF Inputs 2 x SPDIF on RCA Phono connectors, accepts 24-bit 32-192kS/s PCM & DSD/64 in DoP format. 1 x SPDIF on BNC connector, accepts 24-bit 32-192kS/s PCM & DSD/64 in DoP format. 1 x SPDIF on TOSLINK connector, accepts 24-bit 32 – 96kS/s PCM. SDIF-2 Interface 1 x SDIF-2 interface on 2x BNC connectors, accepts 24-bit 32 – 96kS/s PCM or SDIF-2 DSD (auto selected). Requires compatible Word Clock input locked to correct data rate. Word Clock Inputs 3 x BNC connectors, accept standard Word Clock at 32, 44.1, 48, 88.2, 96, 176.4, or 192kHz. Data rate can match or be an exact multiple of clock rate. TTL level sensitive. Word Clock Output 1 x BNC connector. Sync Mode (Master): TTL-compatible 44.1kHz output. Universal Master Mode: 38.4kHz output for Vivaldi Upsampler. Dynamic Range Better than -113dB0 @ 20Hz-20kHz unweighted (6V setting) THD N Better than -115dB0, 20-20kHz Linearity Better than -105dB0 @ 20-20kHz Filters PCM mode: 4 filters with varying Nyquist image rejection and phase response trade-offs. 2 extra filters at 44.1, 176.4, 192, 352.8, and 384kS/s. DSD mode: 4 filters reducing out-of-audio band noise, plus Filter 5 with improved transient response. Software Updates Loaded from CD-R via PCM inputs or PC via USB interface. Remote Control dCS Universal Remote supplied. RS232 control via Vivaldi Upsampler/app or third-party device. Power Supply Factory set for 100, 115, 220, or 230V AC, 50-60Hz Power Consumption 23 Watts typical / 50 Watts maximum
