Description
iFi PRO iDSD – DAC/Amp
Mood music
Finally, we’ve given you a choice of headphone sockets and outputs to cover all tastes. Big ones, little ones, balanced ones…
The Pro iDSD now currently comes in two ‘balanced’ versions – with 4.4mm or 2.5mm balanced headphone sockets. You choose which version you need.
So, whatever your mood, however you connect or listen, the Pro iDSD has an option for you.
The Pro iDSD has a ‘quad ‘stack’ of Bit-Perfect DSD and DXD DACs by Burr-Brown. The ‘interleaved’ configuration means up to 8 pairs of differential signals can be used and mixed, equal to 4 pairs of signals per channel.
The Pro iDSD employs the new XMOS XU216 X-Core 200 Series 16-Core processor. All-digital processing is Bit-Perfect unless particular digital filters are explicitly selected.
The Pro iDSD has a ‘quad ‘stack’ of Bit-Perfect DSD and DXD DACs by Burr-Brown. The ‘interleaved’ configuration means up to 8 pairs of differential signals can be used and mixed, equal to 4 pairs of signals per channel.
The Pro iDSD employs the new XMOS XU216 X-Core 200 Series 16-Core processor. All-digital processing is Bit-Perfect unless particular digital filters are explicitly selected.
Upsampling to DSD1024 has previously only been available to a select few. The Pro iDSD makes it available to a wider audience. The DSD1024 remastering is handled by the Crysopeia® FPGA and this is where we believe the FPGA excels.
Listen to Master Quality Authenticated audio straight out of the box. Connect to Tidal Masters and check the option to stream MQA.
Our video tutorials on You Tube show you how.
Data is sent to the Memory Buffer from all inputs. Here it is de-jittered to eliminate any transmission of source jitter to the DAC output. The data from the Memory Buffer is further re-clocked by the low-jitter Global Master Timing® clock, which also drives the X-Core 200 and FPGA.
With LINKPLAY™ WiFi/network playback, built-in Spotify and Tidal, and wide protocol support for 32-Bit/192kHz and DSD64, the Pro iDSD can be also used without a computer to stream audio directly.
Galvanic isolation is the ‘holy grail’ of computer audio.
All inputs are galvanically-isolated (including USB). The USB input section has its own separate power management system with multiple regulators and filtering operating from the galvanically-isolated voltage generated to power this section.
Unlike other amplifiers that have the same circuit and just switch in/out the tube section, the Pro iDSD is the very first of its kind to have two individual input circuits – one tube (General Electric 5670 tubes!) and one solid-state. This results in the ‘best sonics of both worlds’.
We’ve given the Pro iDSD an extra Tube+ setting. This reduces overall loop-gain and negative feedback to the minimum and presents a different sonic perspective between the tube’s natural harmonics and transient performance.
The amplifier audio circuit is fully discrete, fully-balanced with either tube or J-FET input switchable, bipolar second stage and MOSFET-buffered bipolar Class A Power stage.
The Pro iDSD is packed full of premium components – a Japan Alps rotary volume potentiometer, audio-grade ELNA Silmic capacitors and a bank of Elna Dynacaps ‘super capacitors’.
Discover how these benefit the Pro’s unique design here.
Specifications
| Sample rates: | PCM up to 768kHz DSD up to 49.152MHz (DSD 1024) DXD and double-speed DXD (2xDXD) |
| Inputs: | USB (required for DSD, DXD and sample rates above 192KHz) AES3 (XLR – single link) S/PDIF (coaxial/optical combo) BNC multifunction (S/PDIF in or sync input) |
| Outputs: | Balanced XLR at 4.6V (+15.5dBu – HiFi) or 10V (+22dBu – Pro) Single-Ended RCA at 2.3V (HiFi) or 5V (Pro) Headphones 6.3mm & SE 3.5mm Jack at 0.55V/2.1V/5V Headphones BAL 2.5mm/4.4mm Jack at 1.13V/4.6V/10V Headphones out 1,500mW RMS X 2 @ 64 ohm, 4,000mW max. 2 X @ 16 Ohm |
| Headphone Output Impedance: | Single-Ended (S-BAL): < 1 Ω Balanced: < 2 Ω |
| Volume control: | Balanced (6-gang) Alps potentiometer, motorised with IR remote control XLR/RCA outputs can be selected as fixed level or adjusted 6.3mm headphone jack is always adjusted |
| Other Functions: | Various digital and analogue filters can be selected for DSD and PCM up to 384KHz |
| PCM Filters: | Bitperfect 44.1 – 192kHz, always used for 352.8 – 768kHz Bitperfect + 44.1 – 96kHz Gibbs Transient Optimised 44.1 – 384kHz Apodising 44.1 – 384kHz Transient Aligned 44.1 – 384kHz |
| DSD filters: | fixed 3rd order analogue filter @ 80kHz with correction for DSD’s -6dB gain |
| Gain (headphone section): | user-selectable: 0dB, 9dB and 18dB |
| Dynamic range: | 119dBA (solid-state, PCM, -60dBFS) |
| Output power | Pro iDSD 4.4mm socket. (16 Ω, balanced/single-ended): >4200mW /1>1,575mW
Pro iDSD 2.5mm socket. (16 Ω, balanced/single-ended): >4000mW /1>1,500mW |
| Output voltage | (600Ω, balanced/single-ended): >11.2V / >5.6V |
| Input voltage (Pro iDSD): | DC 9V/6.7A – 18V/3.35A |
| Input voltage (iPower+): | AC 85 – 265V, 50/60Hz |
| Power consumption: | < 22W idle, 50W max. |
| Dimensions: | 213 (l) x 220 (w) x 63 (h) mm |
| Weight: | 1980g (4.37 Ibs) |
