FULL UPGRADE VERSION
Dual ES9038PRO, Accusilicon 318b *3; Femtosecond Crystek *2; USB interface isolator and galvanic isolated power)
Dual ES9038 Pro design, one per channel in mono mode, this improves the channel crossover and sound-stage is larger and extremely precise.
- Discrete balanced DAC & headphone- & pre-amplifier
- Three Femto Accusilicon AS318B oscillators clocks
- Dual Sabre ES9038Pro 32bit / 768K
- 80 steps volume control in both high gain mode and low gain mode. smooth volume level control
- Amanero combo384 with isolation power supply
You may think that a ESS Sabre sound doesn’t appeal to you because they are sometimes considered artificial. This DAC will change the perception! A lot of time has been spent on listening tests. Parameters are constantly adjusted to change the harmonics to make the sound lifelike and palpable. Ultimately, the DAC does not have the slightest distortion, but the most neutral sound with life and realism.
|THD||<0.0003% (0dBV output level)|
|Gain||+ 16dB (XLR)|
|Volume specifications||100 steps, exponential progression.|
|Imbalance between channels||<0.05dB|
|Frequency response||20Hz – 20kHz (<-0.1dB) 1Hz |
– 140kHz ‘-3dB)
|Output level|| |
|Balanced headphone amplifier output power|| |
|Output impedance|| |
|Input sensitivity||Coaxial 75 Ohm: 0.5Vp-p |
|Supported OS (USB)||Windows, OSX, Linux, ISO|
|Sample rates|| |
|Dimensions||430 x 445 x 80mm|
SILVER WIRING UPGRADE
Internal board to board wiring replaced by solid core silver wiring with cotton insulation After the modification the DAC sounds cleaner; and the edges will become softer and more spacious sound image comes alive.
USB Singxer F1 (Replacing Amanero)
Enjoy DSD512 and best sound quality with Singxer F1 USB module installed (Replacing Amanero). MAGNA HIFI is offering a significant upgrade of the internal USB interface by replacing the Amanero USB interface for a more sophisticated Singxer F-1 XU208 board using the Crystek CCHD-575 ultra low phase noise clocks. Besides the sound quality improvements it enables native DSD512 support! We’ll make sure the Singxer F-1 is properly installed and using internal ultra clean power source from the internal DAC to ensure best sound quality
DUAL ES9038 PRO
Since the release of the ES9038 PRO chip we developed only single solutions; to built a flagship solution with this chip a dual design was one of the requirements.
The earlier developed boards did not work well in dual mode; a complete redesign was implemented for this dac. The new designed board with FPGA to separate the channel data and control the ES9038 Pro timing is a fact.
Internal hardware construction is based on FPGA with complex software design and arrangements which is fully software upgradable. The design is much more flexible becuase no hardware changes to be done. Software improvements can can improve the sound quality and add new features. The FPGA is responsible for:
1, Separate the data over 2 ES9038 Pro chips working in mono mode.
2, Clock & re-clock process and FIFO buffering design for all inputs , the output data is synchronized with the clock signal, to further reject jitter.
3, Built in high performance SPDIF transceiver , bypassing the low performance SPDIF feature of the ES9038 Pro .
BEST ANALOGUE OUTPUT STAGES
The analog output stages are as important, they have a tremendous influence on the final sound quality. After d/a conversion by the R2R D/A modules the analogue signal is transported by fully discrete matched-transistor output stages; DC-coupled design with first class through-hole components. No SMD compon ents are applied in the analogue section. The high speed unique ACSS ((Audio-gd Current Signal System) output stages are non-feedback and current driven. Unique performance because almost all other designs need to convert the signal multiple times from and to current and/or voltage, resulting in less detailed and less transparent sound-stage The output buffers are single ended FET; two stages in parallel to reach very low output impedance. All output stages are in pure class A without (negative) feedback to achieve purest and a real live sound reproduction. The 4 OPA op-amp’s are DC servos, this way no coupling-capacitors are needed and DC output is automatically biased. The listener will be presented a strikingly transparent and neutral sound.
ACSS – Current Amplification
Audio-GD has developed an advanced current-driven amplifier technique. Also known as ACSS, Audio-GD Current System Signal. This special technique ensures that the signal travels a much shorter path and that ensures a more transparent, faster and more neutral reproduction. A similar technique is used by, for example, KRELL. The Current Conveyor technology mostly components are the current mirror. The Current Conveyor technology isn’t a new technology, at 1966 , professor K.C. Smith and A.S.Sedra publish the concept “current mode analogue circuits “ .
HIGH PRECISION VOLUME CONTROL
Volume control consist of relay-controlled attenuators. Fully-independent, fully-balanced stereo volume controls. The volume controls feature consist of high-precision 0.05% tolerance film resistors and golden contact relays. Buffered inputs and outputs.There 4 channels volume boards are built in the unit to achieve ultimate balanced volume control. They are controlled by a digital signal controlling the high quality relays switching the precision resistors in analog area.
Quality of volume control is very important in balanced applications . It have to effectuate the four channels to work as synchronous as possible to keep the balanced signal in perfect shape. In traditional volume controls the balanced output will introduce distortion which will negatively influence sound quality and performance and might even get worse than a single ended setup and waste the advantages of balanced designed solution.
The DAC consist of 3 tuned low noise, low flux leakage, R-cores transformers. In total 130W power to supply all digital parts and the left and right analog boards. The DC power is distributed over several separate power regulators. Analogue stages are pure class A low noise shunts; fed by 3 groups linear power supplies. Resulting in ultra-high speed and clean power for all individual parts.