L1794DAC Dual PCM1794 Full Function HiFi Decoder Support Fiber Optic Coaxial USB Bluetooth Input (Silvery Panel)

Description:
- L1794DAC Dual is a HiFi decoder that is completely optimized for sound quality. Two mature PCM1794 chips are used to decode the left and right channels respectively, supporting fiber optic, coaxial, USB, Bluetooth input. The purpose of the design is to prioritize sound quality, abandoning the flashy DSD encoding and completely optimizing for PCM.
- Using two PCM1794 chips not only has a very positive impact on sound density and dynamics, but also further improves the overall separation by independently decoding the left and right channels.
- This machine has put in a lot of effort in power supply, using three sealed transformers to independently stabilize the left and right channels of the digital and analog parts. A total of 8 separate stabilized power supplies make each link inside the decoder completely independent, making the sound very pure.
- This machine integrates traditional fiber optic, coaxial, and USB inputs while also supporting Bluetooth input with the highest LDAC protocol.
- The IV and LPF circuits of this machine are respectively completed using OPA1612 and AD847 HiFi operational amplifiers. It should be noted that the analog part is powered by independent rectification and stabilization of the left and right channels, which greatly enhances the separation of sound, clarifies the hierarchy of instruments, and widens the sound field.

Features:
- Using the classic PCM1794 decoding chip, two chips are responsible for decoding the left and right channels respectively.
- Supports full functionality of coaxial, fiber optic, coaxial USB, Bluetooth input.
- Coaxial and fiber optic support up to PCM192K 24bit bit-rate.
- USB, Bluetooth supports a maximum bit-rate of 96K 24bit, and the Bluetooth protocol fully supports APTXHD LDAC.
- The digital part is designed with four linear stable voltage outputs, which independently supply power to each chip to reduce crosstalk.
- The analog circuit adopts four independent voltage regulators with two sets of positive and negative 15V supply IV and LPF circuits.
- Two PCM1794 chips are used for decoding, the classic CS8416 chip is used for digital reception, the QCC3084 chip is used for Bluetooth transmission, the OPA1612 amplifier is used for IV conversion, and the AD847 chip is used for LPF filtering.
- The CNC processed all aluminum alloy chassis with integrated oxide coating creates a high-end appearance.

Specification:
- Input interface: coaxial, fiber optic, Bluetooth, USB square port
- Input format: PCM 44.1 - 96K (Bluetooth and USB); PCM 44.1K - 192K (fiber optic and coaxial)
- Bluetooth supported format: LDAC, APTX, APTX HD, AAC, SBC
- Line output: RCA stereo socket
- Line output level: 3.8Vppm
- Dynamic range: 132dB
- THD+N: -129dB
- Power consumption: < 15W
- Product size: 230 x 190 x 45mm
- Net weight: about 1.5kg

Package Included:
- 1 x Decoder
- 1 x Power Cable