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DAC Streamer Headphone Amplifier XMOS XU2016 FPGA 32bit 768kHz DSD512 MQA
The iFi Audio Pro iDSD Signature is the new flagship DAC from iFi Audio, a true technology powerhouse with incredible performance. It builds on the strengths of the award-winning Pro iDSD, while offering improvements for even higher performance. The extremely versatile Pro iDSD Signature combines the functions of a DAC and preamplifier, network player and headphone amplifier.
Pro iDSD Signature improvements
The Pro iDSD Signature features a four-stage DAC to provide exceptionally rich and accurate sound reproduction. The powerful XMOS XU216 X-Core 200 USB interface processes the incoming USB signal and allows the Pro iDSD Signature to play high-resolution audio streams - up to PCM 32bit 768kHz, DSD 512, 2xDXD - and also provides full decoding of MQA files.
In addition, thanks to the Crysopeia FPGA digital engine, the Pro iDSD Signature is capable of upsampling PCM and DSD streams to DSD512 and DSD1024. All functions of the iFi Audio Pro iDSD Signature can be simply controlled with a free mobile app.
The Pro iDSD Signature has the unusual option of operating in Solid-State mode with diodes/transistors, or in Tube / Tube+ mode to operate with General Electric 5670 tubes, so it is able to tailor its sound reproduction to your listening and equipment.
The Crysopeia FPGA digital engine allows the Pro iDSD Signature to offer several digital filtering options. The GTO filter adds fullness to the sound, while the Bit Perfect, Bit Perfect+, Apodising, and Transient Aligned filters allow for fine-tuning of the device's playback.
The Pro iDSD Signature can connect to a source in many ways. On the network side, it can connect via WiFi with support for AirPlay and DLNA protocols and access to many streaming services, or via Ethernet, connected to a local network to access files on a NAS or computer. It is also possible to connect a USB storage device or a Micro SD card. The DAC also provides a USB-B 3.0 input, an AES/EBU input and a combined optical and coaxial input.
For its outputs, the Pro iDSD Signature offers single-ended RCA and balanced XLR as well as three front-panel headphone outputs: one in single-ended 6.35mm jack format, one in 3.5mm jack format with S-Balanced technology and one in balanced 4.4mm jack.
The Pro iDSD Signature comes with the excellent iPower Elite power adapter. This is paired with the unit's excellent power supply card for 300x lower noise levels.
All inputs of the Pro iDSD Signature are galvanically isolated, including the USB input. The USB section even has its own power management system, using several regulators and filters.
The Pro iDSD Signature's amplifier circuitry is completely discrete and balanced, with a bipolar Class A MOSFET buffered power stage.
Specifications | |
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Product type | DAC Streamer |
Inputs | WiFi 1x Ethernet RJ45 1x USB-B 1x USB-A (USB Host) 1x Micro SD slot 1x Coaxial / Optical 1x AES/EBU 1x Clock input on BNC |
Outputs | 1x Balanced stereo XLR 1x Single-ended stereo RCA 1x Clock output on BNC 1x Single-ended Jack 6.35mm headphone output 1x Single-ended Jack 3.5mm headphone output 1x Balanced Jack 4.4mm headphone output |
Supported sampling rates | PCM up to 32bit 768kHz DSD up to DSD1024 MQA up to 352.8kHz DXD (2xDXD) |
Filters | Bit Perfect Bit Perfect+ Gibbs transient optimised Apodising Transient aligned |
Headphone amplifier gain | 0dB 9dB 18dB |
Dynamic range | 119dBA (solid-state, PCM, -60dBFS |
Output power | > 4200mW @ balanced, 16Ω > 1575mW @ single-ended, 16Ω |
Output voltage | > 11.7V @ balanced, 600Ω > 5.9V @ single-ended, 600Ω |
General | |
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Supply voltage | Pro iDSD : 9V/6.7A - 18V/3.35A iPower Elite : 85-265VAC 50/60Hz |
Consumption | Max : 50W |
Dimensions | 213 x 220 x 63mm |
Weight | 1980g |
Input | RJ45 |
Input | WiFi |
Input | AES/EBU |
Input | USB |
Input | Micro SD |
Input | BNC |
Input | Optical Mini-Toslink |
Input | SPDIF |
Output | Jack 4.4mm |
Output | Jack 3.5mm |
Output | Jack 6.35mm |
Output | BNC |
Output | RCA |
Output | XLR |
DAC / ADC Chip | Burr Brown |
Max sampling rate | MQA |
Max sampling rate | 768kHz |
Max sampling rate | DSD512 |
Color | Silver |
Class | Tube amp |
Networking | Yes |
Remote Control | Yes |
Streaming services & Network protocols | Tidal |
Streaming services & Network protocols | AirPlay |
Streaming services & Network protocols | Spotify |
Streaming services & Network protocols | DLNA |
Streaming services & Network protocols | Spotify Connect |