Rockna Audio — DAC
Wavedream Reference
The pinnacle of discrete R2R conversion and future-proof digital mastery.
The Wavedream Reference stands as the definitive culmination of Rockna’s decade-long pursuit of digital-to-analogue perfection. By replacing fixed-function DAC chips with a proprietary, fully programmable FPGA-based architecture, it transcends the limitations of off-the-shelf conversion, allowing the hardware itself to evolve through precision firmware updates.
At the core of this reference instrument is an advanced AMD ZYNQ processing platform that manages both system control and a natively integrated, high-performance network renderer. This seamless internal integration ensures the digital signal path remains free from unnecessary obstacles, preserving the raw integrity of your high-resolution files from the moment they enter the system.
The analogue output stage is a masterclass in class-A design, utilising a discrete sign-magnitude R2R ladder topology that is meticulously isolated from digital interference. Whether streaming via its Roon-ready network interface or through its versatile array of digital inputs, the Wavedream Reference delivers an intensely visceral, holographic performance, marked by breathtaking speed, rhythmic virility, and an authentic tonal density that bridges the gap between digital convenience and analogue soul.
Key Features
01
ASRC-free digital PLL
A proprietary, custom-developed clock solution that eliminates asynchronous sample rate conversion, resulting in a natural, analogue-like sense of rhythm and timing.
02
Native network renderer
Features a high-performance streamer integrated directly into the digital front-end, eliminating separate streaming boards to maintain signal purity.
03
Femtovox clock system
An ultra-low jitter clocking architecture where the conversion clock is synthesised directly at the DAC input for 1 ppb precision.
04
Custom Parks-McClellan filters
Utilises advanced convolution algorithms with 5,000 taps to offer selectable linear, minimum, and hybrid phase responses for perfect transient reproduction.
05
Discrete class-A output
A fully symmetrical, all-discrete output stage employing JFET and bipolar transistors, resulting in an output impedance of under 1 ohm.
Chapter 01
Engineering Philosophy
Rockna’s approach treats digital audio as a high-speed analogue phenomenon, applying rigorous radio-frequency techniques to eliminate jitter, crosstalk, and signal reflections. By running the system on a custom-tailored Linux kernel and offloading all audio processing to dedicated FPGA hardware blocks, the Wavedream Reference achieves a level of stability and precision that traditional software-driven DACs simply cannot match.
Chapter 02
Sonic Signature
The Wavedream Reference is characterised by its feisty, robust dynamics and extraordinary control over the frequency extremes. It excels at macro-dynamics, delivering deep, punchy bass and crystalline high-frequency extension without ever sounding sterile. The result is a soundstage that is both vast and meticulously layered, rendering instruments with a tangible, lifelike texture that invites long-term, non-fatiguing immersion.
Chapter 03
Build & Materials
Housed in a precision-machined aluminium chassis with a 20mm front plate, the unit is as much a visual statement as it is an acoustic one. Internally, three shielded toroidal transformers and 20 discrete linear regulators ensure that the digital and analogue sections remain electrically isolated, providing a silent, black background that allows the finest micro-details of a performance to emerge with startling clarity.
Specifications
HARDWAREAMD ZynQ SoC with custom Rockna firmware ; R2R discrete DAC modules RD-1 MK2 x 4 ; 27-bit FPGA driven combined switches ; Optimized clock manager Femtovox 2 ; Mirrored clock distribution ; Low-noise and fine-tuned power supply ; Local regulation on critical nodes ; Discrete regulation for analog stages ; Very large capacitor buffer ; Copper shielded audio grade transformers ; Critical paths with tight impedance control ; Hardware FPGA upsampling ; Proprietary Digital-PLL topology, ASRC-free ; Fully discrete output stage, standard version ; 32-bit ultrafine volume control ; LAN, USB, I2S, SPDIF, AES/EBU, Toslink inputs ; RCA and XLR outputs ; THD -100 dB (-3 dB); DNR 132 dB ; MAX. OUTPUT 2.3V RMS (RCA) 4.6V RMS (XLR)
FINISHESFull aluminum chassis, matt black or matt silver
DIMENSIONS450 x 390 x 105 mm
WEIGHT10kg
SOFTWARERockna custom Linux kernel ; Roon bridge, Upnp, OpenHome ; Airplay, HQPNAA, Spotify Connect ; Fully configurable I2S input port ; Selectable DSD bandwidth ; Android & iOS mobile control app ; Firmware updates over internet ; Squeezelite ; Qobuz Connect ; Diretta