Tech Lowdown
Reference-Class DAC/Preamp, Network Streamer & Headphone Amplifier The Pro iDSD Signature is the new flagship reference-class DAC. The Signature edition builds on the strengths of the original, multi-award winning Pro iDSD Even more ultra-grade audiophile components designed to take your listening experience to a higher plane than ever before.
Reference-Class DAC/Preamp, Network Streamer & Headphone Amplifier ▪ Sonically-darker background and more punchy bass ▪ Upgraded power-supply components to lower overall system noise 300% ▪ Precisely matched NOS GE5670s tubes ▪ Added support for USB1.
Cutting-Edge Playback ▪ Airplay network audio playback – iPhone, iPad or Mac ▪ DLNA network audio playback – smartphones, tablets, Windows/Linux computers ▪ Hard disc drive (HDD) ▪ USB memory stick ▪ SDHC memory card ▪ Streaming – Spotify, TIDAL, Napster, QQ Music and more
Front Connections
Rear Connections
Input Selector Use the selector to cycle through the following input options: ▪ Wi-Fi | Ethernet | Hard Disk | Micro SDHC ▪ Device USB (connect to a computer) ▪ XLR Digital Input ▪ BNC Digital Input Also available via the input selector are: ▪ Brightness (press to adjust) ▪ Polarity (hold to adjust)
Reference Class ▪ Quad-stack DAC – 4 x DACs in interleaved configuration enables exceptional resolution ▪ Crysopeia FPGA Digital Engine delivers bespoke digital filtering and up-sampling ▪ Powerful XMOS XU216 X-Core 200-Series chipset processes incoming digital data ▪ Discrete, fully-balanced Class A amplifier stage with adjustable gain
More Than Whisper Quiet Improved low-jitter clock with > 20dB better performance Zero-jitter memory buffer and galvanically-isolated inputs eradicate digital distortion
PCB
Solid State | Tube | Tube+ Solid –State A purely solid-state J-FET based circuit of fullydiscrete Class-A topology Tube The J-FET circuitry is switched to the valve Class-A section based on two GE5670 Tube+ Negative feedback to a minimum. Greater amount of the tubes’ natural harmonics is produced (even order harmonics dominate).
Specifications Sample rates PCM 768kHz / DSD 49.152MHz (DSD 1024) / MQA 352.8KHz/DXD (2xDXD) Input voltage (Pro iDSD) DC 9V/6.7A – 18V/3.
