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upport MQA decoding and MQA-CD; The new generation flagship DAC chip ES9039MSPRO of USA ESS has built-in MQA hard decoding; New 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support to DSD512; Using ultra-low phase noise crystal oscillator and optimized clock processing circuit to achieve ultra-low clock jitter; All input ports except Bluetooth support DSD transmission, coaxial, optical, AES/EBU support DoP64; Firmware upgrade function, users can upgrade the firmware of the system and USB by themselves; Built-in low-noise power processing, while improving power efficiency and lower power consumption; Specially designed power supply system and multiple low-noise regulated power supplies provide clean power supply for analog circuits. Qualcomm's latest Bluetooth 5.1 chip supports LDAC 24bit/96kHz, APTX/HD, SBC, AAC; High-quality gold-plated input and output connection terminals; Japan Audio Society (JAS) Hi-Res certification; Equipped with remote control and full-featured remote control. Download Manual Driver

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German Infineon's new digital high-power amplifier chip MA5332MS has higher quality, high efficiency, and low energy consumption; The use of Japan's JRC electronic volume control chip NJW1194A, Accurate volume control and ultra-low distortion; Built-in HDMI (ARC) interface； Support MQA decoding, support MQA-CD ; The new third generation XMOS XU-316, PCM support to 32bit/768kHz, DSD support to DSD256; New high-end DAC chip CS43131 from Cirrus Logic (USA) for superior sound conversion; Built-in low-noise MM vinyl phono amplifier; The latest Bluetooth supports LDAC，APTX/HD,SBC，AAC; All aluminum alloy CNC precision processing shell, anodizing technology and chamfering process, exquisite workmanship and delicate touch; Humanized operating system is simple to understand, equipped with full-featured remote control function; A large number of audiophile audio components to enhance the subjective sense of listening; High-quality gold-plated input, Output terminals; Perfect overheating, overcurrent protection circuit; Built in high-quality high-power audio special switching power supply. Download: Manual

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Both USB and SPDIF support MQA decoding function, and support MQA-CD; Using two high-end ES9038PRO D/A chips from ESS, and using all 16 channels, up to 21 OPA1612A operational amplifiers in total; Combined with a high-performance power supply system, the noise is as low as 1uVrms; The 3rd ES9038PRO circuit design has a surprisingly low distortion of 0.00005% and is more stable; The new self-developed CK-03 clock processing circuit greatly reduces clock jitter; Use USB XMOS XU-316, a 32-bit USB scheme, which supports DoP and native DSD, with PCM up to 768kHz and DSD up to DSD512; USB, Optical, Coaxial, I2S, AES support DSD, Coaxial , Optical and AES support DOP64; Use tempered glass display panel for higher light transmission and longer service life; Built-in shielded, low noise power supply processing, while improving power efficiency, lower power consumption; Two sets of linear power are used to supply to the digital and analog units respectively. Equipped with multiple low-noise regulated power for providing SU-10 a stable, reliable, efficient and low-noise power supply system; Qualcomm's latest Bluetooth chip supports LDAC, APTX/HD, SBC, AAC; High quality gold-plated input and output jacks; 21 high-end dual op-amps OPA1612 and a lot of audio grade components are used; JAS Hi-Res certification; Equipped with full-function remote control. Download Driver Manual

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Support MQA decoding, support MQA-CD; New 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support to DSD512; Flagship DAC chip 1 AK4191+ 1 AK4499EX, tap all the potential of the chip, distortion as low as a staggering 0.00006% (-124dB); Use 5 high-end dual op amps and a large number of audiophile components; Adopt 2nd PLL to eliminate JITTER during SPDIF transmission; The new self-developed CK-03 clock processing circuit greatly reduces clock jitter; Support DOP independent display function, accurately determine the current decoding format; USB, optical fiber, coaxial , AES, I2S support DSD transmission, coaxial and optical fiber support DOP64; Using tempered glass full lamination color IPS display. Built-in low-noise power processing, while improving power efficiency, lower power consumption; Combined with multiple low-noise regulated power supplies, it provides a stable, reliable, efficient, and low-noise power supply system. Qualcomm high-end Bluetooth chip, support LDAC (24bit/96kHz), APTX/HD, SBC, AAC; High quality all-aluminum alloy shell, support high quality gold plated input and output connection terminals; Japan Audio Association (JAS) Hi-Res certification; Equipped with remote control and full-featured remote control. Download Driver Manual https://youtu.be/kfcGrheKzNM

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Support MQA decoding, support MQA-CD; New 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support to DSD512; Flagship DAC chip AK4191+AK4499EX, distortion as low as 0.00006% (-124dB); Used 5 high-end dual op-amps and a large number of audiophile components; USB, optical, coaxial, I2S support DSD transmission, coaxial and optical support DOP64; Support DOP independent display function, accurate judgment of the current decoding format. Use tempered glass to fully fit the color IPS display; Built-in low-noise power processing, while improving power efficiency, lower power consumption; Combined with multiple low-noise regulated power supplies, it provides a stable, reliable, efficient, and low-noise power supply system. Qualcomm high-end Bluetooth chip, support LDAC (24bit/96kHz), APTX/HD, SBC, AAC; High quality all-aluminum alloy shell, support high quality gold plated input and output connection terminals; Japan Audio Association (JAS) Hi-Res certification; Equipped with remote control and full-featured remote control. Download Driver Manual

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IEAST AMP-i50Bv2 High-Power Wall-Mount Streaming Amplifier The iEAST AMP-i50Bv2 is a robust and discreet wireless streaming amplifier designed for permanent, hidden installation. Its powerful 2x50W output, driven by a highly efficient Class D architecture, provides ample volume and clarity to drive a pair of medium to large-sized passive speakers, making it perfect for custom residential or light commercial audio systems. Advanced Streaming and Integration This unit is built to support the latest in wireless audio technology. It features both stable, long-range Wi-Fi (802.11 b/g/n) and high-quality Bluetooth 5.0 connectivity. Furthermore, the AMP-i50Bv2 is fully compatible with advanced protocols: AirPlay 2: Seamlessly stream from Apple devices and integrate with other AirPlay 2 devices for multi-room synchronization. Spotify Connect: Direct streaming from the Spotify app for the best experience. Hi-Res Audio: Supports high-fidelity audio streams up to 24-Bit/192 kHz, allowing users to enjoy lossless and high-definition music formats. Key Features for Custom Install: Compact Design: The slim profile is specifically engineered for wall-mounting, easy concealment in cabinets, or installation in custom spaces. Multi-Room Functionality: As part of the iEAST ecosystem, the amplifier supports synchronized or independent streaming zones, managed entirely through the dedicated control app. Wired Reliability: An integrated 10/100M Ethernet port is included to ensure the most stable connection possible, essential for high-resolution audio streaming. Versatile Inputs: The unit includes a Line-in (3.5mm) input, allowing you to connect local audio sources such as a TV, CD player, or turntable (with a pre-amp). Control API: Features a TCP protocol API for simple integration and control by professional smart home systems (e.g., Control4, Savant, Crestron). The iEAST AMP-i50Bv2 provides a high-performance, all-in-one solution for powerful and discreet wireless audio in any modern space.

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Both USB and SPDIF support MQA decoding function, and support MQA-CD; 2x advanced ES9068AS D/A chips, fully optimized to THD+N as low as -122dB, far exceeding the official specifications; 5x High-End dual op amp OPA1612A and a large number of audio grade components; XMOS XU-316, a true 32bit USB solution, supporting DoP256 and native DSD512, PCM supports up to 768kHz; All input ports support DSD(Except BT), coaxial, optical and AES support DoP64; Qualcomm's latest Bluetooth chip supports LDAC 24bit/96kHz, APTX/HD, SBC, AAC; Ultra-low phase noise and optimized clock system to achieve ultra-low clock jitter; Tempered glass display panel, higher light transmittance, longer service life; Low-noise power supply, while improving power efficiency and lower power consumption; Discrete component linear power supplies and multiple low-noise power supplies specially designed for analog circuits; High-quality gold-plated input and output connection terminals; Full-view color IPS display with dimmer function; Japan Audio Association (JAS) Hi-Res certification; Equipped with remote control and full-function remote control. Download Driver Firmware V1.0

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Support MQA decoding and MQA-CD; New 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support to DSD512; The new generation flagship DAC chip ES9039MSPRO of USA ESS has built-in MQA hard decoding; High output power: 6W at 16 ohm and 3W at 32 ohm ; Fully balanced design, 4-way ultra-low distortion precision linear feedback circuit (PLFC) Three types of headphone output connectors: 4-XLR, 4.4mm and 6.35mm, to meet different purposes; Specially designed linear regulated power supplies for discrete components and multiple low-noise regulated power supplies provide analog circuits with low noise power supply; All input ports except Bluetooth support DSD transmission, coaxial, optical fiber, AES/EBU support DoP64; Firmware upgrade function, users can upgrade the firmware of the system and USB by themselves; Built-in low-noise power processing, while improving power efficiency and lower power consumption; Qualcomm's latest Bluetooth 5.1 chip supports LDAC 24bit/96kHz, APTX/HD, SBC; High-quality gold-plated input and output connection terminals; Japan Audio Society (JAS) Hi-Res certification; Equipped with remote control and full-featured remote control. Download Driver Manual

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Support MQA decoding and MQA-CD; The brand-new third-generation XMOS XU-316, PCM supports to 32bit/768kHz, and DSD supports to DSD512; Two groups of linear power supplies are used to supply power to digital and analog units respectively. With multiple low-noise regulated power supplies, provide a stable, reliable, efficient, and low-noise power supply system for SU-X. Using dual latest flagship DAC chip ES9039MSPRO from American ESS, built-in MQA decoding; Using eight-channel parallel circuit design, the distortion is as low as 0.00004%(-128dB), ensuring more stable. Use 21 high-end dual op-amps and a large number of HiFi components; Adopting 2nd PLL to eliminate SPDIF transmission JITTER; Brand-new self-developed CK-03 clock processing circuit greatly reduces clock jitter; Support DOP independent display, clearly see the current decoding format; USB, optical, coaxial, AES and I2S support DSD, while coaxial, optical and AES support DOP64. Use tempered glass to fully fit the color IPS display screen; Built-in low noise power supply processing, improve power efficiency, and lower power consumption; With multiple low-noise regulated power supplies, making sure a stable, reliable, efficient and low-noise power supply system. Qualcomm's high-end Bluetooth chip, supports LDAC(24bit/96kHz),APTX/HD, SBC, AAC; High-quality all-aluminum shell; High-quality gold-plated input and output terminals; Japan Audio Association (JAS)Hi-Res certification; Equipped with remote control and full-function remote control. Download Driver Manual

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Support MQA decoding and MQA-CD; New 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support to DSD512; The new generation flagship DAC chip ES9039MSPRO of USA ESS has built-in MQA hard decoding; Designed with an eight-channel parallel circuit, the distortion is as low as a staggering 0.00005% (-125dB) and more stable. Using 11pcs High-end dual op-amp and most of Hifi standard components like nichicon KG capatitor; Adopt 2nd PLL to eliminate JITTER during SPDIF transmission; The new self-developed CK-03 clock processing circuit greatly reduces clock jitter; Support DOP independent display function, accurately determine the current decoding format; USB, optical fiber, coaxial , I2S support DSD transmission, coaxial and optical fiber support DOP64; Use tempered glass to fully fit the color IPS display; UK made noratel toroidal power transformer for linear power supply; Combined with multiple low-noise regulated power supplies, it provides a stable, reliable, efficient, and low-noise power supply system. Qualcomm high-end Bluetooth chip, support LDAC (24bit/96kHz), APTX/HD, SBC, AAC; High-quality monolithic full aluminum CNC housing. Japan Audio Association (JAS) Hi-Res certification; Equipped with remote control and full-featured remote control. Download Driver Manual

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Fosi Audio P4 Mini High-Fidelity Stereo Preamplifier The Fosi Audio P4 Mini Preamplifier is a high-performance, compact control hub designed to enhance your home audio system. It offers exceptional sound clarity, versatile connectivity, and user-friendly features in a sleek, all-aluminum chassis. Mini Control Hub with Triple Inputs: Easily connect up to three different audio sources—such as a CD player, DAC, streamer, or turntable (requires an external phono preamp)—using the three dedicated RCA inputs. Switch seamlessly between sources with a single click on the front panel or the included remote. Precision and Clarity: Engineered for audiophiles, the P4 delivers pristine audio quality with extremely low distortion (THD+N $\le 0.003\%$) and an excellent signal-to-noise ratio ($\ge 110\text{dB}$). Experience your music with a low noise floor and faithful sound reproduction. Motorized Volume Control & Remote: The high-precision motorized analog potentiometer allows for smooth, accurate volume adjustments from across the room via the included IR remote control. This minimizes noise and distortion compared to digital controls, ensuring a purer soundscape. Customizable Tone Control: Fine-tune your listening experience with $\pm 12\text{dB}$ bass and treble controls. A convenient bypass switch is included on the rear panel, allowing you to completely defeat the tone circuit for the purest, high-fidelity signal path when preferred. Flexible System Integration: The P4 features both a standard RCA output and a dedicated Pre-Out port. This volume-controlled pre-out is ideal for connecting an active subwoofer or a pair of powered speakers, providing flexible options for system upgrades and expansion. Adjustable Gain: A three-level gain adjustment switch (+3dB, +6dB, +9dB)  ensures perfect level matching for various audio sources, optimizing the signal before it reaches your power amplifier. The P4 Mini is the perfect companion for a power amplifier like the Fosi Audio V3, providing essential source selection, volume control, and audio customization in a compact, solid-state unit.

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FiiO BTA30 Pro High-Fidelity Bluetooth Transceiver & DAC The missing link in your wireless Hi-Fi system. The FiiO BTA30 Pro is a versatile Bluetooth hub designed to bring high-resolution wireless audio to your home setup. Whether you want to breathe new life into old speakers or transmit LDAC audio from your PC to your premium wireless headphones, the BTA30 Pro does it all with audiophile-grade precision. 3 Modes for Infinite Possibilities 1. Bluetooth Transmitting (TX Mode) This is the BTA30 Pro's "Killer Feature." Connect it to your PC (USB), TV (Optical), or CD player (Coaxial), and it will transmit high-quality audio to your Bluetooth headphones or speakers. It is one of the few devices on the market that supports LDAC transmission, ensuring your Sony WH-1000XM5 or FiiO FW5 receives the highest possible bitrate. 2. Bluetooth Receiving (RX Mode) Turn any wired speaker system into a wireless powerhouse. Stream music from your smartphone or tablet via LDAC or aptX HD to the BTA30 Pro, which then outputs clean analog audio to your amplifier or active speakers. 3. Wired DAC Mode Need a dedicated DAC? The BTA30 Pro functions as a high-performance desktop DAC, converting USB, Optical, or Coaxial digital audio into high-fidelity analog RCA output for your audio system. Premium Hardware Architecture ESS ES9038Q2M DAC Chip Unlike standard Bluetooth adapters, the BTA30 Pro features a dedicated ESS ES9038Q2M DAC chip. This audiophile-grade component ensures exceptional dynamic range and ultra-low noise, delivering sound that is detailed, transparent, and immersive. High-Performance DSP Equipped with a dedicated CT7302 DSP chip, the BTA30 Pro can upsample any input signal to 384kHz/32bit via the Coaxial/Optical outputs, significantly improving the audio quality and reducing digital jitter. Technical Specifications Feature Detailed Specification Bluetooth Chip Qualcomm CSR8675 (Premium Tier) DAC Chipset ESS Sabre ES9038Q2M DSP Chip CT7302 (Independent High-Performance) Bluetooth Version 5.0 (Long Range) TX Codecs (Transmit) LDAC, aptX HD, aptX LL, aptX, SBC RX Codecs (Receive) LDAC, aptX HD, aptX, AAC, SBC Inputs USB-C, Optical, Coaxial Outputs RCA Line-Out, Optical, Coaxial Dimensions 120 x 55 x 25.8 mm Special Feature Bypass Mode (Input to Output pass-through) Why Choose the FiiO BTA30 Pro? PC LDAC Upgrade: The perfect solution for Windows users. Bypass the limited Windows Bluetooth stack and transmit pure LDAC audio via USB to your headphones. Gaming Low Latency: Supports aptX Low Latency (LL) in TX mode, making it ideal for connecting your TV or console to headphones for lag-free gaming audio. App Control: Use the FiiO Control App to remotely adjust volume, select Bluetooth codecs, switch digital filters, and manage input priority. Dual Connections: Can connect to two Bluetooth headphones simultaneously (in aptX/aptX HD/SBC formats), perfect for sharing a movie or game with a friend. Frequently Asked Questions Does it support microphone pass-through? No. The BTA30 Pro is designed for high-fidelity audio transmission and reception. It does not support microphone input for voice chat during gaming or calls. Can I use it with my TV? Yes. Connect your TV's Optical output to the BTA30 Pro's Optical input, switch to "TX" mode, and you can watch movies with your Bluetooth headphones without disturbing others. Does it have a battery? No. The BTA30 Pro is a desktop device and requires a USB power connection (Type-C) to operate. This ensures stable performance and strong signal transmission without battery anxiety.

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