Audio-gd ::Master-7 Ultimate Design Dedicated Discrete Fully Balanced DAC, 3x R-core transformers, built-in DSP-1 , 8x PCM1704UK

Price: 2509.45 EUR ( 2040.20 EUR Net Price)

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Price (standard version)

Audio-gd ::Master-7 Ultimate Design Dedicated Discrete Fully Balanced DAC, 3x R-core transformers, built-in DSP-1 , 8x PCM1704UK

2509.45 EUR

( Net Price: 2040.20 EUR)

Dostępne wersje produktu oraz wyposażenie opcjonalne

Audio-gd ::Master-7 Ultimate Design Dedicated Discrete Fully Balanced DAC, 3x R-core transformers, built-in DSP-1 , 8x PCM1704UK, USB with TCXO

2509.45 EUR

(Net Price: 2040.20 EUR )

Referencyjny, w pełni zbalansowany dyskretny przetwornik Cyfrowo Analogowy (DAC) oparty o 8 przetworników Hi-end PCM1704UK i DSP-1 (oversampling NOS, x2, x4, x8; Redukcja Jitter). Urządzenie obsługuje 6 wejść cyfrowych: BNC 24bit/96KHz; AES 24bit/192KHz;RCA 24bit/192KHz; Optical 24bit/96KHz; I2S 32bit/192KHz; USB 32bit/192KHz; USB VIA Vinyl Audio VT1731 32bit/384kHz Wyjścia: XLR, RCA, ACSS. Dzięki zastosowaniu unikalnej techniki Non-Feedback braku kondensatorów sprzęgających i zastosowaniu ACSS (Audio-gd Current Signal System) umożliwiającą prace w domenie prądowej bez jakichkolwiek wzmacniaczy operacyjnych OPA, co zaowocowało wyjątkowo neutralną, wręcz "przezroczystą" reprodukcją dźwięku. Tor zasilania składa się z 19 grup jednostek zasilających Class A (PSU) oraz 3 transformatorów typu R-core, zasilających niezależnie część cyfrową, analogową i sterującą. Waga 15 Kg

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Master-7#

Dedicated Discrete Fully Balanced DAC - High-End PCM1704 design

Fully redesigned DSP software
Based on 8 × PCM1704UK, Supports up to 192KHz
32bit/384K Asynchronous Transfer USB-32 Module
OCC wires & TCXO applied

Main features

Fully balanced discrete analog stages without any OPA or coupling caps in the signal channel.
Non-feedback ACSS analog output stage.
Total of 21 groups dedicated power circuits (19 groups of high-quality class A parallel connection PSU's with dedicated DC supply double-stage PSU), and more than 50,000µF caps are used to purify the power supply.
USB Audio Class 2 High-speed Input from Windows / MAC / Linux. Supports High / full speed Asynchronous Transfer Mode up to 384K / 32Bit ability .
Resolutions support:
- 16/24/32 Bit with sampling rate support 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz (USB)
- Supports up to 24 Bit/192KHz (SPDIF)
6 × input interfaces:
- IN1 - BNC input, supports up to 24bit/96KHz
- IN2 - AES input, supports up to 24bit/192KHz
- IN3 - RCA coaxial input, supports up to 24bit/192KHz
- IN4 - optical input, supports up to 24bit/96KHz
- IN5 - I2S input, supports up to 32bit/192KHz
- IN6 - USB input, supports up to 32bit/192KHz

About ACSS technology#

ACSS (Audio-gd Current Signal System) technology is Audio-gd's signature technology for transmitting audio signals in the current domain. This concept, first seen in 1966, has been adapted by us for many years. Since 2005, we have been evolving this technology to include it into all audio signal transmissions in our systems from digital source to power amplifier. Since 2006, ACSS technology became Audio-gd's signature technology and gains a lot of popularity.

About Master-7#

The Master-7 is the ultimate design based on PCM1704 chip. The newly designed DSP processor is soldered on the main board directly for best signal transfer and faster data processing and clocking, it brings the detail, transparency and dynamics to another level over all other audio-gd DACs. It allows users to hear the flaws and perfections of the source recording (matched with a revealing amp).

It supports up to 32bit / 192KHz through USB and I2S input, 24bit / 192KHz through SPDIF inputs (NOS, 2X , 4X and 8X oversampling support). There are no design compromises, no parts are upgradeable, built with all high-grade audio parts, OCC wires, TCXO ,ect.

It is a fully new design concept . The SPDIF inputs have applied special interfaces for processing data, allowing the highest sound quality for the different SPDIF inputs.

S/N Ratio	>120dB
Output impedance	10 Ω
Output Level	2.5V (RCA) 5V (XLR) 2+2mA (ACSS)
Frequency Response	20Hz - 20KHz (< -0.1DB)
Input Sensitivity	0.5 Vp-p ( 75 Ω, Coaxial ) 19 dBm (Optical)
Supported sampling rate	USB/I2S mode: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz , 192kHz BNC mode: 44.1kHz, 48kHz, 88.2kHz, 96kHz Coaxial mode: 44.1kHz, 48kHz, 88.2kHz, 96kHz ,192kHz Optical mode: 44.1kHz, 48kHz, 88.2kHz, 96kHz
Power Requirements	220-240V AC 50/60 Hz
Power Consumption	48W
Package Weight	Approximately 15KG
Dimensions	W430×L430×H93 (mm, Fully aluminium enclosure )
Accessories	AC power cord ×1 USB cable ×1

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