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1. Master Your Digital Audio The Fosi Audio Q6 is a high-performance Digital-to-Analog Converter (DAC) and preamplifier designed to be the ultimate bridge between your computer and your sound system. Unlike standard DACs, the Q6 features a sophisticated LED display and cutting-edge processing to deliver studio-quality sound with absolute precision. 2. Key Features & Audiophile Highlights Studio-Grade Decoding Power 32-Bit / 768kHz & DSD512 Support: Equipped with an advanced DAC architecture and XMOS USB interface, the Q6 handles the highest resolution audio formats available today. Experience your music with zero compression and breathtaking detail. Low Jitter Performance: The high-precision clock system ensures that digital timing remains perfect, eliminating "jitter" and providing a clean, stable soundstage. Intuitive LED Display & Control Real-Time Status Monitoring: The sleek front-panel LED display shows your current sampling rate, input source, and volume level at a glance. No more guessing if you are getting the "Hi-Res" signal you paid for. Seamless Preamp Function: Use the Q6 as a digital volume controller for your active speakers or power amplifiers. The smooth, stepped volume adjustment provides fine-grained control over your output. Premium Connectivity & Build Versatile Digital Inputs: Features USB, Optical, and Coaxial inputs, allowing you to connect your PC, Mac, PS5, or CD player simultaneously. Gold-Plated Outputs: The high-quality RCA outputs ensure a lossless signal transfer to your downstream equipment. 3. Technical Specifications Component Specification Decoding Rate Up to 32-Bit / 768kHz DSD Support Up to DSD512 Input Options USB, Optical, Coaxial Output Options RCA Line Out USB Interface XMOS XU208 (or equivalent high-perf) SNR / THD+N ≥ 115dB / ≤ 0.0002% Display High-Contrast LED 4. Why the Q6 is the Pro Choice The Fosi Audio Q6 is designed for the user who values information and performance. While the Q4 is for beginners, the Q6 is for those who want to see their 768kHz bitrate confirmed on a screen. Its ultra-low distortion and high-bitrate support make it a future-proof investment for any high-fidelity desktop setup.

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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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The all-new series features a sleek design with a tempered glass panel, offering both apremium feel and durability! Cirrus Logic's latest audio decoder chip CS43131, with carefully designed circuitry, achievesan unprecedented 0.00019%(-114dB) distortion performance! The brand-new third-generation XMOS XU-316,PCM support up to 32bit/768kHz, DSDsupport up to DSD256. USB supports MQA decoding and MQA-CD. Bluetooth 5.1 digital audio input, external antenna, longer transmission distance. The clock system uses an independent ultra-low jitter, ultra-low phase noise crystaloscillator as the audio clock. The built-in high-efficiency power chip provides sufficient energy for the decoder, and usesmultiple sets of low-noise LDo power supply. A large number of audiophile-grade resistors and capacitors dedicated to audioperformance are used. Equipped with 3.5mm and 4.4mm balanced headphone outputs. The all-aluminum alloy CNC precision-machined case effectively reduces interference. Download Driver Manual

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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 and MQA-CD; Uses new generation high-end DAC chip ES9039Q2M; Adapts the latest Bluetooth chip of Qualcomm, supports LDAC 24bit/96kHz, APTX/HD, SBC and AAC; Utilizes 4 high-end dual op-amps OPA1612 and numerous audio-grade components; The brand-new third-generation XMOS XU-316, supports PCM 32bit/768kHz and DSD512; The audio clock processing circuit helps reduce clock jitter greatly; Input ports (except Bluetooth) support MQA and DSD, coaxial and optical support DoP64; Built-in specially designed low noise switching power supply; Built-in self-developed low-noise switching power supply and multiple analog circuits low-noise power supply; High-quality gold-plated input and output connectors; Japan Audio Association (JAS)Hi-Res certification; Equipped with a full-featured remote control. Download Driver 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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WiiM Vibelink Amp High-Power Stereo Integrated Amplifier Pure Power. Zero Distractions. The WiiM Vibelink Amp is a dedicated high-performance amplifier designed for audiophiles who already own a streamer. Stripping away the wireless modules, it focuses 100% of its resources on audio quality and amplification. With 100W per channel (8Ω) and a pure analog circuit, it is the ultimate power upgrade for your WiiM Ultra or legacy audio sources. Audiophile-Grade Amplification TI TPA3255 with PFFB Technology At its core, the Vibelink Amp utilizes the premium TI TPA3255 Class-D amplifier chip, enhanced with Post-Filter Feedback (PFFB) technology. This load-independent architecture ensures consistent, ultra-low distortion sound regardless of your speaker's impedance, delivering 100W x2 @ 8Ω or a massive 200W x2 @ 4Ω. Pure Analog Path (No ADC) Unlike the standard WiiM Amp which digitizes analog inputs, the Vibelink Amp features a pure analog RCA signal path. Your vinyl turntable or high-end CD player's signal remains analog from input to amplification, preserving the original warmth and texture without unnecessary conversion. Flagship Digital Decoding ESS Sabre ES9039Q2M DAC For digital sources (TVs, Transports), the Vibelink Amp employs the latest generation ESS ES9039Q2M flagship DAC. It supports up to 24-bit/192kHz decoding via its Optical and Coaxial inputs, delivering industry-leading dynamic range (120dB) and transparency. Smart System Integration Built to work in harmony. The Vibelink Amp features a 12V Trigger Input and Auto-Standby. When you turn on your connected WiiM streamer (like the WiiM Ultra), the Vibelink Amp wakes up instantly. When the music stops, it goes to sleep, saving energy without you lifting a finger. Technical Specifications Feature Detailed Specification Amplifier Type Class-D with PFFB (Post-Filter Feedback) Output Power 100W x 2 (8Ω) / 200W x 2 (4Ω) DAC Chipset ESS Sabre ES9039Q2M (Premium Tier) Analog Input RCA Stereo (Pure Analog Path, No ADC) Digital Inputs 1x Optical, 1x Coaxial (Up to 192kHz/24-bit) Subwoofer Out No (Relies on connected streamer/preamp for sub management) Trigger 12V Trigger In (Auto Power On/Off) THD+N 0.0005% (-105 dB) Dimensions 190 x 190 x 63 mm (Stackable with WiiM Amp/Ultra) Network/App None (Pure Integrated Amp) Why Choose the WiiM Vibelink Amp? The "Ultra" Partner: Designed aesthetically and functionally to stack with the WiiM Ultra. Use the Ultra for streaming, HDMI ARC, and Subwoofer control, and let the Vibelink provide the raw muscle. Vinyl Purist Friendly: The only WiiM amp that doesn't convert your record player's sound to digital. It keeps it analog all the way to the speaker terminals. More Power, Less Noise: With 200W @ 4Ω, it drives demanding floor-standing speakers that the standard WiiM Amp (60W) struggles with. Premium Build: Features the same anodized aluminum unibody as the WiiM Ultra, with an upgraded internal copper heat pipe cooling system for silent operation. Frequently Asked Questions Does it have Wi-Fi or Bluetooth? No. The Vibelink Amp is a pure integrated amplifier. It does not stream music on its own. It is designed to be connected to a streamer (like WiiM Ultra, Mini, or Pro Plus) or other audio sources. Can I connect a subwoofer? The Vibelink Amp itself does not have a subwoofer output. However, if you use it with a WiiM Ultra or WiiM Pro Plus, you can connect your subwoofer to the streamer's sub-out, and the Vibelink Amp will handle the main speakers. Is it better than the WiiM Amp Pro? It is different. The WiiM Amp Pro is an "All-in-One" (Streamer + Amp). The Vibelink Amp is just an Amp, but it has more power (100W vs 60W) and a pure analog path. Choose Vibelink if you already have a streamer or need more power. Complete the Flagship Stack: Pair the Vibelink Amp with the WiiM Ultra Streamer for a complete system with touchscreen control and subwoofer management. The Audiophile Value Combo: Connect the WiiM Pro Plus to the Vibelink's RCA inputs to utilize its pure analog signal path

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Support MQA decoding, support MQA-CD; ESS new generation high-end digital-to-analog chip ES9039Q2M; Qualcomm latest Bluetooth chip supports LDAC 24bit/96kHz, APTX/HD, SBC, AAC; 4x high-end dual op amp OPA1612 and a large number of audio grade components; New third generation XMOS XU-316 with PCM support up to 32bit/768kHz and DSD support up to DSD512; Audio clock processing circuit, greatly reducing the clock jitter; Input ports (except Bluetooth) support DSD and MQA transmission, coaxial and optical supports DoP64; Built-in specially designed low-noise switching power supply; Built-in self-developed low-noise SMPS and multiple low-noise power supplies for analog circuits; High-quality gold-plated input and output connection terminals; Japan Audio Association (JAS) Hi-Res certification; Equipped with full-function remote control. Download Driver Manual

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Supports USB2.0 x 2,USB3.0 x 1,LAN,WIFI multi-input interface; Supports native connection to music servers such as TIDAL and QOBUZ; Supports audio push services like Airplay and DLNA; Supports coaxial, optical, AES/EBU and USB outputs. Supports USB connection to CD drives for playing CDs; Aluminum alloy CNC-machined panel, crafted with precision and a compact design, delivering a premium tactile experience. Built-in low-noise audio grade switching power supply. Supports connection for MQA decoding. Download Manual Firmware

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New digital high power amplifier chip from Infineon, Germany, higher quality with high efficiency and low power consumption; Using JRC’s electronic volume control chip NJW1194 from Japan, precise volume control and ultra-low distortion; Support MQA decoding and MQA-CD ; New 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support up to DSD256; The latest Bluetooth supports LDAC，APTX/HD,SBC，AAC; Use the latest audio decoding chip CS43131 by Cirrus Logic； All Aluminum alloy CNC precision processing shell, anodizing technology and chamfering process, exquisite workmanship and delicate touch; User-friendly operating system is simple and easy to understand, equipped with full-featured remote control function; A large number of professional Hi-fi audio components are used to enhance the sound experience; High-quality gold-plated input and output terminals; Perfect protection circuit for overheating, overcurrent etc; Built-in high-quality power supply, specially designed for audio. Download Manual Driver

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Supports MQA/MAQ-CD Decoding; ESS new generation of high-end analog-to-digital conversion chips ES9039Q2M; Brand-new 3rd generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD Support to DSD512; Input ports (excluding Bluetooth) support MQA and DSD, Coaxial and Optical support DoP64; Audio dedicated clock processing circuit, greatly reducing clock jitter Built-in low noise power supply UAC1/2 mode switching, UAC1 can easily connect to SONY PS5, Nintendo SWITCH, etc; 4 high-end dual operational amplifiers and a large number of audio grade components; High quality gold-plated input and output connection terminals; Japan Sound Association (JAS) Hi-Res certification; Download Driver Manual

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TOPPING D90LE: Elevate Your Audio to Professional Levels As a flagship decoder from TOPPING—known for precision engineering and audiophile-grade sound—the D90LE redefines high-fidelity audio. Built for music lovers, studio pros, and home theater fans, it blends cutting-edge tech, craftsmanship, and ease of use to deliver sound true to the original recording. Core Performance: Top-Tier Decoding The D90LE excels at handling demanding audio formats: Full Format Support: Decodes PCM (up to 32bit/768kHz), DSD (up to DSD512 via DoP/Native), FLAC, ALAC, WAV, and MQA. Unlocks studio-quality sound from MQA-encoded music. Premium DAC Chip: Low-noise, high-dynamic-range DAC minimizes distortion, reproducing every detail—from soft violin notes to deep bass—with clarity. Dual-Mono Design: Separates left/right channels to reduce crosstalk, widening the soundstage and improving instrument positioning for immersive listening. Technical Highlights: Pure Sound Innovation TOPPING integrates key tech to preserve audio integrity: Ultra-Low Noise Power Supply: Filters electrical interference for stable power, critical for reproducing delicate high-frequency details. Versatile Inputs: USB Type-B (PC/Mac, USB Audio Class 2.0), coaxial, optical, and balanced XLR—connect to CD players, streamers, consoles, or computers easily. Dual Outputs: Balanced XLR (for pro gear/high-end amps) and unbalanced RCA—works with most audio systems. User-Friendly Design The D90LE balances function and style for daily use: OLED Display: High-contrast screen shows input, format, sampling rate, and volume at a glance. Easy Controls: Front-panel buttons + remote adjust volume, input, and decoding modes. High-precision potentiometer for smooth volume changes. Durable Build: Sleek aluminum chassis resists vibration/EMI, fitting modern home or studio setups. Who It’s For Audiophiles: Unlock high-res music libraries with nuanced, true-to-source sound. Studio Pros: Reliable decoding for mixing, mastering, or reference listening. Home Theater Fans: Enhance movies/TV/games with clear, deep high-res soundtracks. The TOPPING D90LE isn’t just a decoder—it’s an investment in closer, purer music. A must-have for anyone who won’t compromise on audio quality.

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