Ifi Pro iDSD 4.4 kuulokevahvistin/dac/etunen

The Signature takes the original Pro iDSD and pushes it even further towards perfection. 

"Use the Pro iDSD Signature as a standalone unit, a DAC/preamp, a network streamer and a headphone amplifier."

The Pro iDSD Signature has:

• a sonically darker background and a punchier bass
• upgraded power -supply components to lower the overall system noise by 300%
• precisely matched NOS GE5670s tubes
• added support for USB1.0 (PS4/PS5)
• a new aluminium remote control
• a top-of the range iPower Elite power supply included

Stacked. With tech.

The Pro iDSD Signature uses a quad-stack DAC – 4 x DACs in an interleaved configuration – to deliver exceptional resolution.

The powerful XMOS XU216 X-Core 200 series chipset processes incoming digital data and enables the Pro iDSD Signature to provide state of the art audio support – from MP3, 32-bit/768kHz PCM, DSD512, 2xDXD and full MQA decoding.

Thanks to the Crysopeia FPGA Digital Engine the Pro iDSD Signature brings studio grade DSD remastering to a wider audience. It can upconvert PCM and DSD files to DSD512 and DSD1024.

And all controlled from an app in the palm of your hand.

E-tailoring

The Pro iDSD Signature, like its predecessor, takes sonic tailoring to the extreme.

Listen to the your music to in solid-state, tube or tube+ modes, your choice, all at the flick of a switch.

Our Crysopeia FPGA Digital Engine strikes again as it enables the Pro iDSD Signature to offer several options when it comes to digital filtering. The GTO filter adds gravitas and a new dimension, and while the Bit Perfect, Bit Perfect+, Apodising and Transient Aligned filters give you even more choices to tweak the sound.

The discrete, fully balanced Class A amplifier stage offers adjustable gain.

Your choice. The only choice.

• Stream wirelessly from Tidal, Spotify, Napster, QQ Music and more
• Use Airplay to enjoy playback from your iPhone, iPad or Mac
• Go wired via an Ethernet connection to play from a router or NAS (Network Attached Storage)
• Use DLNA network audio playback with smartphones, tablets, Windows/Linux computers
• Connect to a hard disc drive (HDD)
• Pop in a USB memory stick or SDHC card

And with a variety of headphone outputs – Single-Ended 6.3mm, S-Balanced 3.5mm and Balanced 4.4mm – the only choice is your choice.

Power cleans. Absolute.

The Pro iDSD Signature ships with our flagship iPower Elite.

Coupled with the re-crafted power supply board which offers up to 300x lower noise, the music is buttery smooth.

Within and without – we left no stone unturned in our quest for the cleanest, purest, power for the Pro iDSD Signature (same for Pro iCAN Signature too!)

Sample rates	PCM 768kHz / DSD 49.152MHz (DSD 1024) / MQA 352.8KHz/DXD (2xDXD)
Inputs	USB / AES3 (XLR) / S/PDIF (coaxial/optical combo) BNC / Ethernet / Wi-Fi / Micro SD
Filters	Bit Perfect / Bit Perfect+ / Gibbs Transient Optimised / Apodising / Transient Aligned
Gain	User-selectable: 0dB, 9dB and 18dB (headphone section)
Dynamic range	119dBA (solid-state, PCM, -60dBFS)
Output power
Output voltage
Input voltage (Pro iDSD)	DC 9V/6.7A – 18V/3.35A
Input voltage (iPower Elite)	AC 85 – 265V, 50/60Hz
Power consumption	< 22W idle, 50W max
Dimensions	213 x 220x 63 mm
Net weight	1980 g