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Questyle CMA Eighteen Master is a flagship desktop DAC, preamplifier and headphone amplifier designed as the control centre of a reference headphone or HiFi system.Its fully balanced Current Mode architecture, extensive digital and analogue connectivity, and powerful balanced headphone stage combine source control and high-end listening in one chassis. Why it stands outFlagship desktop integrationCombines digital decoding, analogue preamplification and headphone amplification in one reference-class component.Full-chain Current Mode designQuestyle’s Current Mode signal path is engineered for wide bandwidth, low distortion and precise transient response.Balanced system architectureBalanced headphone and line connections support demanding headphones and high-quality downstream systems.Flexible source controlMultiple digital and analogue inputs make it suitable for computers, transports and existing HiFi sources. Best for Reference desktop headphone systems High-end DAC and preamplifier upgrades Balanced headphones and active monitor systems Multi-source desktop or living-room HiFi systems Not ideal for Portable or battery-powered listening Directly driving passive loudspeakers Users who only need a simple USB dongle EMiUZEK Buying Notes This is the desktop CMA Eighteen Master, not the battery-powered CMA18 Portable. It is a DAC, preamplifier and headphone amplifier; it does not contain a loudspeaker power amplifier. Connect passive speakers through a separate power amplifier or integrated amplifier. Frequently asked questionsCan it drive passive speakers directly?No. Use its line output with an external power amplifier or active speakers.Can it be used as a preamplifier?Yes, connect its line output to a compatible power amplifier or active monitors.Can I connect a computer?Yes, use the appropriate digital input and install the official driver where required.Does it support balanced headphones?Yes, it provides balanced headphone connectivity as well as single-ended headphone use.Is this the CMA18 Portable?No. This listing is for the full-size desktop CMA Eighteen Master. HOW TO CONNECTDesktop Headphone SystemSource: PC / MacConnection: USB audioOutput: Balanced or single-ended headphone outputTarget: Wired headphonesActive Speaker SystemSource: Digital or analogue sourceConnection: Compatible inputOutput: Line / preamplifier outputTarget: Active speakersHiFi Preamp SystemSource: Streamer / CD transportConnection: Digital inputOutput: Balanced or RCA line outputTarget: Power amplifier and passive speakers Technical Specifications Feature Specification Product type Desktop DAC / preamplifier / headphone amplifier Architecture Fully balanced full-chain Current Mode design Digital sources Computer, digital transport and compatible digital audio sources Analogue input Line-level analogue input Headphone outputs Balanced and single-ended Line outputs Balanced and unbalanced Speaker amplification Not built in Power AC-powered desktop component What's in the box Questyle CMA Eighteen Master Power cable Remote control Product documentation Download CenterAccess product manuals, firmware updates, and additional support resources.Download CenterAdditional Product Content📊 Comparison: Which Flagship Desktop DAC/Amp Is Right for You?Choose CMA Eighteen Master for Current Mode sound, extensive source flexibility and a flagship all-in-one system; choose RME for deep DSP control, or FiiO K19 when HDMI ARC and very high headphone power are priorities. Feature Questyle CMA Eighteen Master RME ADI-2 DAC FS FiiO K19 Core buying reason Flagship Current Mode desktop system Reference DAC with powerful DSP High-power desktop DAC/amp with HDMI DAC architecture ESS ES9038PRO RME reference conversion platform Dual ESS ES9039SPRO Maximum USB playback PCM 768kHz / DSD512 PCM 768kHz / DSD PCM 768kHz / DSD512 Headphone connection 4.4mm balanced and 6.35mm 6.35mm plus dedicated IEM output 4.4mm, 6.35mm and 4-pin XLR Analogue input Included for multi-source integration Not on ADI-2 DAC FS Not the main use case DSP / EQ focus Sound-path and hardware focused Extensive PEQ, loudness and crossfeed App and onboard DSP features HDMI ARC No No Yes Best choice when You want Questyle Current Mode sound and a flagship preamp/headphone hub You need precise headphone correction and measurement-style control You need HDMI, Bluetooth and maximum connection flexibility

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✨ EMiUZEK D50: Compact Wireless Receiver Board The EMiUZEK D50 Wireless Receiver Board is a compact, cost-effective solution for adding modern streaming capabilities to your existing passive or active speakers and audio equipment. It operates as a simple, high-quality audio bridge, delivering clear sound from your smart devices to your stereo system. Key Features: Bluetooth 5.3 Technology: Utilizes the latest Bluetooth standard for fast pairing, stable connections, and high-quality audio transmission with an effectWhy it stands outBluetoothKey Features: Bluetooth 5.3 Technology: Utilizes the latest Bluetooth standard for fast pairing, stable connections, and high-quality audio transmission with an effective range.Wi-Fi and streaming✨ EMiUZEK D50: Compact Wireless Receiver Board The EMiUZEK D50 Wireless Receiver Board is a compact, cost-effective solution for adding modern streaming capabilities to your existing passive or active speakers and audio equipment. Instant Wireless Upgrade: Connect the EMiUZEK D50 to your amplifier, mixing console, or active speaker's line-in port to immediately enable wireless audio streaming from your phone or tablet.ControlDIY-Friendly Design: The small form factor and simple I/O connections make it an excellent module for hobbyists and makers looking to embed wireless audio into custom devices or vintage equipment.Power requirementsVersatile Power Supply: Designed with flexible power options, including micro USB and compatibility with common lithium battery setups, making it ideal for both permanent installations and portable DIY projects.Best for Custom audio builds OEM prototypes Upgrading an existing enclosure Users comfortable with wiring and integration Not ideal for Plug-and-play retail systems Installers without voltage and pinout experience Projects needing undocumented interfaces Product Details and Connection ViewsEMiUZEK Buying Notes This is a DIY module; verify supply voltage, pinout, grounding and enclosure clearances before power-up. Bundle contents differ by variant; accessories are included only when named in the selected bundle. Do not connect or disconnect boards while powered. Frequently asked questionsCan D50 connect to my own DAC?Yes, just connect the correspond pins to your DACYou need to connect IIS_DATA/LRCK/BCLK/MCLK/VCC_3V3(5V)/GNDIs there a connection for triggering a relay to switch on/off an external amplifier?Yes. Can I stream from YouTube ?Yes you can stream YouTube by AirPlay or Bluetooth.How can I stream from PC wirelessly?You can use any software that supports Airplay, DLNA or UPnP protocols. Such as iTunes, Muiscbee, Foobar2000 etc.Can we listen to a radio with a personalized link? If yes, how ?Yes, this is available. There are 2 ways you can do this.1. 4STREAM APP> Internet radio> Click on the menu icon on the top right corner.>You should see a "Custom URL" button, then you can put in your link there and listen to the radio that URL points to.2. Entry web control>Radio>register your account>my stationCan a Google Home stream to this over wifi?Currently , Up2Stream Pro only support connecting Google Home or Alexa via Bluetooth or line in.HOW TO CONNECTBasic board integrationSource: Supported power supplyConnection: Power and ground according to the board markingsOutput connection: Confirmed audio output to the next stageWireless source buildSource: Phone or network audioConnection: Wi-Fi or Bluetooth to the boardOutput connection: Board audio output to amplifier stageAccessory-board buildSource: Selected compatible expansion boardConnection: Confirmed header or cable connectionOutput connection: Required input or output interfaceTechnical Specifications Feature Specification Interface Power Input5V-1A 2 pin connector5V-1A Micro USB inputAnalog Input3.5mm Line Input (1 Vrms)4 pin connector Line Input (1 Vrms)Analog Output3.5mm Line Out (1 Vrms)4 pin connector Line Out (1 Vrms) Digital InputMicro USB Input Digital OutputI2S Out,*②SPDIF Out (44.1KHz) Sound Audio FormatDecoding up to 192khz/24bitOutput up to 44.1khz/16bit CD qualityMusic FormatFLAC/MP3/AAC/AAC+/ALAC/APE/WAV NASSupport NAS with DLNA supportSNR/THD+N91dB/0.03% @ 0dBFS, 1KHzUSB HostFor USB pen drive/stick, 1000 songs limited. Frequency response20Hz to 20kHz General and Accessory Working temperature0~40℃ Acessory220mm Internal WiFi Antenna4Pin 220mm PH2.0 Cable7Pin 220mm PH2.0 Cable2Pin 220mm Power CableUser Manual Power Button and LED Indicators Device on:Short press once: Switch input modeLong press once: Switch offShort press twice: Disconnect current WiFi connection and enter paring mode (WiFi mode)；Disconnect current connected Bluetooth device (Bluetooth mode)Short press three times: Restore the factory settingsDevice off:Short press: Switch on LED Indicators⚪White-WiFi & network mode:Flashing fast-device is bootingFlashing slow- waiting for WiFi connectionSolid- WiFi is connected🔵Blue-Bluetooth mode:Flashing slow- waiting for Bluetooth connectionSolid- Bluetooth is connected🟢Green-Line in mode🔴Red-USB mode🟡Yellow-connect to PC Additional Product ContentComparison: EMiUZEK Wireless Audio Boards Model Confirmed connections Best fit D10 2.4 GHz Wi-Fi, Bluetooth, AirPlay, DLNA, UPnP Basic DIY network-streaming core D30 USB, HDMI ARC, optical, RCA, subwoofer out, 5 V / 12 V TV, 2.1-channel and broad-I/O builds D50 Bluetooth 5.3, Micro-USB/battery power, USB sound-card mode Compact or portable Bluetooth/USB builds AMP D60 2.4 GHz Wi-Fi, Bluetooth 5.3 and amplified stereo output Embedded board that directly powers speakers

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Arylic Up2Stream Amp 2.1 is a WiFi streaming amplifier designed for 2.1 stereo systems with built-in amplification for passive speakers and a dedicated subwoofer output. With 50W × 2 stereo power, 100W subwoofer output, AirPlay 2, Spotify Connect, TIDAL Connect, and multi-room support, it provides a complete wireless audio solution for music, movies, and home entertainment systems. Why it stands out Complete 2.1 Streaming Amplifier Up2Stream Amp 2.1 combines wireless streaming, stereo amplification, and dedicated subwoofer output in one compact device, making it easy to build a complete 2.1 audio system. Wireless HiFi Music Playback Enjoy high-resolution music streaming from network sources and popular streaming services with flexible wireless connectivity. Powerful Stereo Amplification The built-in Class-D amplifier delivers 50W × 2 output for passive speakers, providing clean and dynamic sound for home stereo systems. Flexible Audio System Expansion With speaker output and dedicated subwoofer connection, Up2Stream Amp 2.1 supports desktop audio, living room systems, and compact home entertainment setups. Best for Bookshelf speaker systems with subwoofer Desktop 2.1 audio setups Living room stereo systems Wireless HiFi upgrades Compact home entertainment systems Not ideal for Users looking for a simple Bluetooth-only amplifier Users requiring high-power amplification for large speakers Users wanting built-in music storage or CD playback FAQ Can Arylic Up2Stream Amp 2.1 directly power passive speakers? Yes. The built-in 50W × 2 Class-D amplifier allows direct connection to passive speakers without an additional power amplifier. Does Arylic Up2Stream Amp 2.1 support a subwoofer? Yes. It includes a dedicated subwoofer output with up to 100W power support for building a complete 2.1 audio system. Does Arylic Up2Stream Amp 2.1 support AirPlay 2? Yes. It supports AirPlay 2 for wireless streaming from compatible Apple devices. Does Arylic Up2Stream Amp 2.1 support Spotify Connect and TIDAL Connect? Yes. It supports direct network streaming through compatible music services. Can Arylic Up2Stream Amp 2.1 be used in a multi-room system? Yes. Multiple compatible Arylic streaming devices can be connected through the network for synchronized or independent playback. What speakers work best with Arylic Up2Stream Amp 2.1? It is suitable for bookshelf speakers and compact passive speakers that match the amplifier output and impedance requirements. Can Arylic Up2Stream Amp 2.1 be used for TV audio? Yes. It can integrate with TV audio systems through compatible digital or analog connections. HOW TO CONNECT 2.1 Stereo System Setup Source icon: Streaming ServiceSource: AirPlay / Spotify / Network MusicConnection: WiFi / EthernetOutput connection: Speaker Output + Subwoofer OutputTarget icon: Speakers + Powered SubwooferOutput: Complete 2.1 Audio System Note: Build a wireless stereo system with enhanced bass performance. Desktop Audio Setup Source icon: Computer / SmartphoneSource: Digital MusicConnection: Network StreamingOutput connection: Speaker OutputTarget icon: Bookshelf SpeakersOutput: Desktop HiFi System Note: Create a compact high-quality desktop audio setup. Living Room Audio Setup Source icon: TV / Streaming DeviceSource: Digital Audio SourceConnection: Optical / NetworkOutput connection: Speaker + Subwoofer OutputTarget icon: Home Audio SystemOutput: Stereo Entertainment System Note: Upgrade traditional speakers with modern streaming features. Technical Specifications Amplifier Feature Specification Amplifier Type Class-D Stereo Output Power 50W × 2 Subwoofer Output Power 100W System Type 2.1 Stereo Amplifier Speaker Type Passive Speakers Streaming Feature Specification WiFi Supported Ethernet Supported AirPlay 2 Supported Spotify Connect Supported TIDAL Connect Supported DLNA Supported Multi-room Audio Supported Audio Resolution Up to 24-bit / 192kHz Connectivity Feature Specification Optical Input Supported RCA Line Input Supported Subwoofer Output Supported Bluetooth Supported Recommended System Setup Setup Connection 2.1 Music System Streaming Source → Up2Stream Amp 2.1 → Speakers + Subwoofer Desktop Audio Computer / Phone → Up2Stream Amp 2.1 → Bookshelf Speakers Living Room System TV / Streaming Source → Up2Stream Amp 2.1 → Stereo System What's in the box Arylic Up2Stream Amp 2.1 ×1 Power Adapter ×1 Speaker Cable ×1 User Manual ×1 Additional Product Content Arylic Streaming Amplifier Comparison Feature Up2Stream Amp V4 Up2Stream Amp 2.1 Up2Cast Amp Product Position Streaming Amplifier 2.1 Streaming Amplifier Premium Streaming Amplifier Stereo Output 50W × 2 50W × 2 50W × 2 Subwoofer Output No Dedicated Output 100W Subwoofer Output Supported Audio Resolution 24-bit / 192kHz 24-bit / 192kHz 24-bit / 192kHz AirPlay 2 Supported Supported Supported Spotify Connect Supported Supported Supported TIDAL Connect Supported Supported Supported Multi-room Supported Supported Supported Best Focus General wireless stereo Stereo + Subwoofer system Premium wireless HiFi

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When your amplifier is hungry for current, feed it properly. The Grey Knight ENERGY is engineered for high-current, high-energy power delivery — the kind of cable that lets a big Class-AB amplifier or a power-hungry integrated amp breathe freely instead of choking on a stock cord. Three 6.15 mm² single-crystal OCC copper cores carry serious amperage, while a triple-layer shield keeps the audio path clean. Why this cable matters 3 × 6.15 mm² OCC single-crystal copper core — three independently insulated conductors of ultra-pure, single-crystal oxygen-free copper. The generous 6.15 mm² cross-section keeps series resistance low even under heavy dynamic swings, so bass stays tight and transients stay fast. Triple-layer shielding — high-density pure-copper braid + aluminum foil + high-temperature mica tape. The combined anti-interference coefficient exceeds 98 %, shunting EMI and RFI to earth before they contaminate the audio band. 19 mm outer diameter, extra-thick PET jacket — substantial build that feels like it belongs on serious gear; the abrasion-resistant PET skin survives rack routing and stage use. Two conductor versions — choose STANDARD (pure OCC copper) or UPGRADER (OCC copper with silver enhancement) to match your budget and sonic preference. US / EU / AU plug options — pick the mains standard for your region. Specs at a glance Model: Grey Knight ENERGY (GK-ENERGY) Conductor: OCC single-crystal copper, 3 × 6.15 mm² Versions: STANDARD (OCC copper) / UPGRADER (OCC copper + silver) Shielding: Pure-copper braid + aluminum foil + mica tape (>98 % rejection) Outer diameter: 19 mm Jacket: Extra-thick abrasion-resistant PET Plug: US / EU / AU (rhodium-plated contacts) Available lengths: 1 m / 1.5 m / 2 m / 3 m Application: power amplifier, integrated amp, CD player, DAC, power distributor / filter If your gear draws real current, the ENERGY is the cable that stops it from being starved at the wall.

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IntroduçãoO WiiM Vibelink Amp é um amplificador de potência estéreo. Não possui Wi‑Fi, aplicativos ou serviços de streaming; deve receber sinal de um streamer, pré-amplificador ou DAC.Principais recursosAté 100 W por canal em 8 Ω ou 200 W por canal em 4 Ω pelas entradas digitaisDAC ESS ES9039Q2M, amplificação TI TPA3255 e PFFBEntradas RCA analógica, óptica e coaxialEntrada de trigger 12 V e saídas para caixas passivas de 3–8 ΩIdeal paraCombinar com WiiM Mini, Pro, Pro Plus ou UltraSistema separado com maior flexibilidade de upgradeAlimentar caixas passivas a partir de uma fonte externaPontos a considerarNão possui streaming, Wi‑Fi, aplicativo ou controle de volume de pré-amplificador.Requer uma fonte com controle de volume adequado, como streamer, DAC ou pré-amplificador.Não possui HDMI ARC nem saída dedicada para subwoofer.Informações de compra da EMiUZEKA EMiUZEK oferece suporte pós-venda para orientação de produto, configuração e atendimento do pedido.FAQ＋O WiiM Vibelink Amp possui streaming integrado?＋Não. Ele é um amplificador de potência estéreo. Precisa receber áudio de um streamer, DAC, pré-amplificador, CD player ou outra fonte compatível.Ele pode ser usado com WiiM Ultra, Pro ou Mini?＋Sim. O Ultra pode ser ligado por RCA, óptica ou coaxial; Pro e Pro Plus também oferecem essas opções. O Mini pode ser ligado por óptica ou saída analógica de 3,5 mm para RCA.Quais entradas estão disponíveis?＋Há entradas RCA analógica, óptica e coaxial digitais. A seleção da entrada pode ser feita no aparelho e, após a configuração, também pelo WiiM Home.Qual é a potência de saída?＋Com entrada digital, chega a 100 W por canal em 8 Ω e 200 W por canal em 4 Ω. Pela entrada RCA, a potência nominal é 60 W por canal em 8 Ω e 120 W por canal em 4 Ω.Ele possui saída para subwoofer?＋Não. O Vibelink Amp não possui Sub Out. Para um sistema 2.1, use uma fonte/pré-amplificador com saída de subwoofer adequada ou uma solução de integração compatível.Para que serve a entrada Trigger de 12 V?＋Ela permite que uma fonte compatível, como o WiiM Ultra, coloque o Vibelink em standby e o desperte automaticamente.Ele aceita caixas ativas?＋Não na saída de alto-falantes. O Vibelink foi projetado para alimentar caixas passivas; caixas ativas devem ser ligadas diretamente a uma saída de linha compatível da fonte.Como conectarConecte o streamer/pré-amplificador por RCA, óptica ou coaxial e as caixas passivas aos terminais. O trigger 12 V pode sincronizar o acionamento com equipamento compatível.Especificações técnicasAmplificador de potência Classe D TI TPA3255 com PFFB; DAC ESS ES9039Q2M; digital: 100 W × 2 em 8 Ω / 200 W × 2 em 4 Ω; RCA: 60 W × 2 em 8 Ω / 120 W × 2 em 4 Ω; entradas RCA, óptica e coaxial; trigger 12 V; 200 × 212,5 × 66 mm; 2,05 kg.Conteúdo da embalagemWiiM Vibelink Amp, cabo de alimentação e documentação, conforme o lote.ComparaçãoVibelink é um amplificador de potência sem streaming. Amp, Amp Pro e Amp Ultra integram streaming e amplificação; Ultra + Vibelink forma um sistema separado.

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Fosi Audio P4 is a compact solid-state stereo preamplifier that brings three RCA sources under one volume and tone-control stage.Its motorized analog volume control, remote operation, three-level gain, tone bypass and separate pre-out make it a practical partner for power amplifiers and powered subwoofers.Why it stands outThree-source analog hubThree RCA inputs allow convenient switching among a DAC, streamer, CD player or other line-level source.Motorized analog volume controlThe remote-driven analog potentiometer provides smooth level adjustment without replacing the analog signal path with digital volume control.Flexible tone and gain adjustmentBass, treble, bypass and three gain levels help match different source levels and listening preferences.Low-noise preamplifier performanceHigh SNR and low THD+N support clean system control in a compact all-metal chassis.Best for Systems with multiple line-level analog sources Power amplifiers needing source selection and remote volume Powered speaker systems 2.1 systems using the volume-controlled pre-out Not ideal for Driving passive speakers directly Turntables without a built-in or external phono preamp Users needing Bluetooth or digital audio inputs EMiUZEK Buying Notes P4 is a preamplifier and cannot directly power passive speakers. All three inputs are line-level RCA; a standard turntable requires a phono preamp. Pre-out is volume controlled and suitable for compatible powered subwoofers or powered speakers. Frequently asked questionsCan P4 drive passive speakers?No. Connect its RCA output to a power amplifier that drives the passive speakers.Does P4 include Bluetooth?No. It is an analog RCA preamplifier.Can I connect a turntable?Only if the turntable has a built-in phono stage or you use an external phono preamp.What is pre-out for?It provides a volume-controlled line-level output for compatible powered speakers, a powered subwoofer or downstream equipment.Can tone controls be bypassed?Yes. The bypass function provides a more direct signal path when tone adjustment is not needed.What does the gain setting do?The three gain levels help match differing source output levels and system sensitivity.HOW TO CONNECTPower amplifier systemSource: DAC, streamer, CD player or phono preampConnection: RCA inputOutput: RCA outputTarget: Power amplifier → passive speakersNote: Select the source and use P4 for volume control.Powered speaker systemSource: Up to three line-level sourcesConnection: RCA inputOutput: Pre-out or RCA outputTarget: Powered speakersNote: Begin with conservative volume settings on both devices.2.1 systemSource: Line-level sourceConnection: RCA inputOutput: RCA output + pre-outTarget: Power amplifier and powered subwooferNote: Use pre-out for the powered subwoofer and confirm crossover settings.Technical SpecificationsAudio performance Feature Specification Product type 2.0-channel solid-state preamplifier SNR ≥110dB Dynamic range ≥110dB THD+N ≤0.003% Crosstalk ≥105dB Noise floor ≤9μV Frequency response 20Hz–20kHz (±0.1dB) Tone adjustment ±12dB Connectivity and power Feature Specification Inputs RCA × 3 Outputs RCA, pre-out Gain adjustment +3dB / +6dB / +9dB Volume control Motorized analog potentiometer with remote Power supply DC 12V / 1.5A Recommended System Setup Setup Connection Stereo separates Sources → P4 → Power amplifier → Passive speakers Powered speakers Sources → P4 → Powered speakers 2.1 separates Sources → P4 → Power amplifier + powered subwoofer Additional Product ContentFosi Audio product comparisonCompare the main Fosi Audio preamplifier choices by source support, outputs and the features that most affect system design. Feature P4 P3 ZP3 Product position Compact analog preamp Tube preamp + headphone amp Balanced high-performance preamp Analog inputs RCA × 3 RCA RCA × 2, XLR Wireless / digital inputs None Bluetooth 5.1 None Main outputs RCA, pre-out RCA, AUX RCA, XLR, sub-out Headphone output No 3.5mm No Speaker amplification No No No Tube stage No Yes, replaceable 5654W No Tone controls Bass and treble with bypass Bass and treble Bass and treble Remote control Yes No Yes THD+N ≤0.003% ≤0.02% ≤0.0007% SNR ≥110dB ≥103dB ≥115dB Best use Three analog sources and powered sub expansion Bluetooth tube preamp and headphones Balanced stereo system integration

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✨ EMiUZEK AMP D60: Multiroom Wireless Stereo Streaming Amplifier Board The EMiUZEK AMP D60 board is a versatile and powerful solution designed to transform any traditional speaker setup into a modern, wireless streaming audio system. It serves as the core component for DIY enthusiasts looking to build custom speakers or integrate multiroom capabilities into their existing passive speaker infrastructure. Key Features: Seamless Multiroom Streaming: Easily connect multiple devices across your home to play synchronizedWhy it stands outAudio resolutionHigh-Fidelity Stereo Output: Delivers clean, robust stereo sound, ensuring an excellent listening experience whether you are streaming high-resolution audio or popular music services.BluetoothWireless Connectivity: Features both WiFi (2.4G) and Bluetooth 5.3 connectivity, giving you flexible options for local and network streaming.Wi-Fi and streaming✨ EMiUZEK AMP D60: Multiroom Wireless Stereo Streaming Amplifier Board The EMiUZEK AMP D60 board is a versatile and powerful solution designed to transform any traditional speaker setup into a modern, wireless streaming audio system. Key Features: Seamless Multiroom Streaming: Easily connect multiple devices across your home to play synchronized audio or different music in different rooms, all controlled via a single app.Multi-roomIt serves as the core component for DIY enthusiasts looking to build custom speakers or integrate multiroom capabilities into their existing passive speaker infrastructure. Intuitive App Control: Manage your entire multiroom setup, select music sources, and adjust volume and EQ settings all through a user-friendly mobile application.Best for Custom audio builds OEM prototypes Upgrading an existing enclosure Users comfortable with wiring and integration Not ideal for Plug-and-play retail systems Installers without voltage and pinout experience Projects needing undocumented interfaces Product Details and Connection ViewsEMiUZEK Buying Notes This is a DIY module; verify supply voltage, pinout, grounding and enclosure clearances before power-up. Bundle contents differ by variant; accessories are included only when named in the selected bundle. Do not connect or disconnect boards while powered. Frequently asked questionsCan I use this amp in an active configuration, meaning one channel places highs for the tweeter, and the other plays lows for the woofer?Yes, that is available.How can I stream from PC wirelessly?You can use any software that supports Airplay, DLNA or UPnP protocols. Such as iTunes, Muiscbee, Foobar2000 etc.Can we listen to a radio with a personalized link? If yes, how ?Yes, this is available. There are 2 ways you can do this.1. 4STREAM APP> Internet radio> Click on the menu icon on the top right corner.>You should see a "Custom URL" button, then you can put in your link there and listen to the radio that URL points to.2. Entry web control>Radio>register your account>my stationCan a Google Home stream to this over wifi?Currently, Up2Stream Amp only support connecting Google Home or Alexa via Bluetooth or Line in.HOW TO CONNECTBasic board integrationSource: Supported power supplyConnection: Power and ground according to the board markingsOutput connection: Confirmed audio output to the next stageWireless source buildSource: Phone or network audioConnection: Wi-Fi or Bluetooth to the boardOutput connection: Board audio output to amplifier stageAccessory-board buildSource: Selected compatible expansion boardConnection: Confirmed header or cable connectionOutput connection: Required input or output interfaceTechnical Specifications Feature Specification Connectivity WiFiIEEE802.11 b/g/n 2.4GBluetooth5.0 SBC/AAC, 15M, BT ReceiverWired NetworkEthernet Single 10/100M RJ45 ProtocolsAirPlay, DLNA, UPnP, Spotify Connect, Qplay Interface Power Input12V-24V/DC in12V-24V 2Pin ConnectorAnalog Input3.5mm Line Input (1 Vrms)4 pin connector Line Input (1 Vrms)Analog Output4 pin connector Line Out (1 Vrms)Speaker Out Digital InputMicro USB Input*SPDIF In pin connector I/O InterfaceLED pin connectorIR pin connectorButton pin connectorRotary encoder pin connectorGPIO pin connectorMono Out pin connector Sound Audio FormatDecoding up to 192khz/24bitOutput up to 44.1khz/16bit CD qualityMusic FormatFLAC/MP3/AAC/AAC+/ALAC/APE/WAV NASSupport NAS with DLNA supportSNR/THD+N91dB/0.03%, @1kHz 50W+50W 24V-4ΩUSB HostFor USB pen drive/stick, 1000 songs limited. Frequency response20Hz to 20kHz Speaker and Amplifier Stereo2x50W @ 4ohm load at 24V2x30W @ 8ohm load at 24V2x15W @ 8ohm load at 15VMono100W @ 2ohm load at 24V60W @ 4ohm load at 21V30W @ 8ohm load at 18V Speaker Impedance4-8ΩAmplifier ChipTPA3116D2 General and Accessory Working temperature0~40℃ Acessory220mm Internal WiFi Antenna x24Pin Phoenix ConnectorScrew DriverUser Manual Reset Button and LED Indicators Device onShort press once: Switch input modeLong press once: Switch offShort press twice: Disconnect current WiFi connection and enter paring mode (WiFi mode)；Disconnect current connected Bluetooth device (Bluetooth mode)Short press three times: Restore the factory settingsDevice offShort press: Switch on LED Indicators⚪White-WiFi & network mode:Flashing fast-device is bootingFlashing slow- waiting for WiFi connectionSolid- WiFi is connected🔵Blue-Bluetooth mode:Flashing slow- waiting for Bluetooth connectionSolid- Bluetooth is connected🟢Green-Line in mode🔴Red-USB mode🟡Yellow-connect to PC🟣Purple-Spdif in mode Additional Product ContentComparison: EMiUZEK Wireless Audio Boards Model Confirmed connections Best fit D10 2.4 GHz Wi-Fi, Bluetooth, AirPlay, DLNA, UPnP Basic DIY network-streaming core D30 USB, HDMI ARC, optical, RCA, subwoofer out, 5 V / 12 V TV, 2.1-channel and broad-I/O builds D50 Bluetooth 5.3, Micro-USB/battery power, USB sound-card mode Compact or portable Bluetooth/USB builds AMP D60 2.4 GHz Wi-Fi, Bluetooth 5.3 and amplified stereo output Embedded board that directly powers speakers

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