Fosi Audio BT20A Pro Bluetooth Stereo Power Amp
Feature：
The Best Bluetooth Audio Receivers of 2025
Bass & Treble Control with Midpoint Positioning
Op-Amp Rolling: SS3602, MUSES02, OPA2604AP, OPA2134PA
Replaceable Knobs: ORANGE KNOB, GREY KNOB
Fosi Audio BT30D Bluetooth 2.1 CH Power Amplifier.
Elevate your audio experience with the Fosi Audio BT30D! This 2.1 - channel Bluetooth 5.0 amplifier features advanced TPA3116D2 chips for a powerful 50W×2 + 100W output. It offers stable, long - range wireless connection, clear sound, and has SUB volume/frequency controls. Compact yet mighty, it's perfect for home or outdoor setups.
The K7 is an all-in-one HiFi DAC and headphone amplifier, developed based on in-depth interviews with hundreds of headphone HiFi and gaming enthusiasts. It supports mainstream digital inputs including USB, optical, and coaxial, and features aptX HD/LL for high-quality Bluetooth audio streaming.
The MC331 is a 2.0 channel integrated amplifier with vacuum tubes and built-in DAC. It supports five input modes—Bluetooth, USB, Optical, Coaxial, and RCA—making it compatible with a wide range of audio source devices.
Fosi Audio MC351 2.1 Channel Integrated Amplifier
Feature：
All-in-One DAC Amplifier
High Power with Great Sound
5 input modes: Bass and Treble Controls
Mini VU Meter: Classic Retro Vibe
This plug-and-play digital audio adapter is easy to set up, requiring no software or drivers. It features USB, optical, and coaxial S/PDIF inputs, compatible with most home audio systems, and RCA output for amplifiers or powered speakers. The built-in Hi-Fi headphone amp drives 16 to 200-ohm headphones, delivering 160mW RMS (32 ohms, 20 Hz - 20 kHz, 0.01% THD). With bass and treble control, it functions as a preamp or volume controller for PCs and Macs. This compact D/A converter streams 24bit/192KHz HD audio with low jitter, ensuring safety for your audio setup.
Delivering clean digital to analog conversion without coloring the sound. Vocals are more distinct, revealing finer details. Bass is tighter and more tuneful without overpowering, while highs gain airiness and precision for a well-balanced, immersive listening experience.
Key Features:
High-Performance Amplification: Equipped with a advanced TPA3255 chip, the SK01 delivers up to 255W per channel (at 4Ω) with exceptional clarity and minimal distortion, ensuring rich, dynamic sound across all frequencies.
Dual Connectivity Options: Seamlessly switch between Bluetooth 5.0 for wireless streaming (supporting AAC and SBC codecs) and RCA/RCA+L/R inputs for wired connections with turntables, TVs, CD players, and more.
Precision Tone Control: Adjust bass, treble, and volume with dedicated knobs for fine-tuned sound customization tailored to your preferences.
Sleek, Durable Design: Housed in a robust aluminum alloy casing with a vintage-inspired wood panel, the SK01 combines retro aesthetics with modern durability.
User-Friendly Interface: Intuitive controls and a blue backlit display provide clear visibility and ease of use, even in low-light environments.
Universal Compatibility: Works effortlessly with speakers ranging from 4Ω to 8Ω, making it ideal for bookshelf, floor-standing, or vintage passive speakers.
Technical Specifications:
Output Power: 255W x 2 (4Ω), 160W x 2 (6Ω), 120W x 2 (8Ω)
Bluetooth Version: 5.0 (compatible with AAC/SBC)
Signal-to-Noise Ratio (SNR): ≥98dB
Frequency Response: 20Hz–20kHz (±1dB)
Inputs: RCA (stereo), RCA+L/R (for dual-source switching)
Power Supply: 32V/5A (DC, power adapter included)
Dimensions: 7.5" x 5.9" x 2.4" (190mm x 150mm x 60mm)
Weight: 3.3 lbs (1.5 kg)
What’s Included:
FOSI Audio SK01 Amplifier
32V/5A Power Adapter
RCA Audio Cable
User Manual
Ideal for audiophiles and casual listeners alike, the FOSI Audio SK01 bridges the gap between vintage warmth and modern technology. Upgrade your sound today—wherever music lives.
The V3 Mono can serve as a power amplifier for multi-channel AVRs, complementing the output power to easily drive high-power speakers in home theater systems.
High-Performance Digital-to-Analog Audio ConverterThe ZD3 is a audiophile-grade balanced stereo DAC meticulously developed by Fosi Audio after thoroughly understanding user needs. It features the ES9039Q2M high-precision DAC chip, delivering rich and superior sound
Stream To 4 Zones - Independently, Or in Sync: Add network streaming, AirPlay, and Spotify Connect capability to your existing active wired speakers, amplifiers, preamps and receivers. Stream and control 4 different audio outputs at once, control all music wirelessly via our 4STREAM App.
Multiroom Audio System: Mix and match any combination of Arylic Streamers to create a custom multiroom system and play the same music throughout your home, send different sources to each room at the same time, or create your own custom-defined multiroom zones... All controlled via our 4STREAM App.
Brilliant Sound Streamed Directly From Your Favorite Providers: Spotify, Amazon Music, Tidal, Qobuz, Napster, TuneIn, Internet Radio, iHeart Radio, QQ Music, QQ FM. The H400 connects directly to your online streaming providers to play high quality audio, avoiding Bluetooth bottlenecks and compression.
Stream Any Kind of Audio On One Device: In addition to Direct Streaming from Online Streaming Services, AirPlay, and Spotify Connect, there are multiple digital and analog input and output ports allowing you to connect most of the audio devices in your home.
Plug and Play: Power up the device and connect to your WiFi router with the Lan cable and it is ready to use.
The HA400 is a 400 watts 4 zone network streaming amplifier that integrates Hi-res amplification, a network player with AirPlay 2, Spotify Connect, Tidal Connect, and advanced preamplifier technologies.
Power up and connect to your home network by Ethernet, wire each zona to your passive speakers, and you are ready to go. This AirPlay2 amplifier lets you play any audio sources in different rooms and provides convenient wireless control of all zones in one 4STREAM APP.
Product Parameters:1. Function Support：Bluetooth 5.0, optical coaxial decoding, U diskdecoding, computer decoding, 3.5AUX input
2. Tuning mode：Support potentiometer, remote volume adjustmentBass and treble adjustment,U disk selection and standby function
3. Optical fiber coaxial decoding chip: ESS9018K2M
4. DA decoder chip: ESS9018K2M
5. Bluetooth U disk PC decoder chip ATS2825
6. USB Flash Disk Support Format : WAV/APE/FLAC/MP3
7. Amplifier: TPA3116*2
8. Optical Coaxial Sampling: Support 32bit/192kHz
9. U disk, computer, Bluetooth sampling rate: Support 16bit/48kHz
10. Output Power: 150W*2
11. Different voltage output power: 19V(80/32+32W)(4Q/more than 45+45W)24V(80/38+38W)(40/Greater than 55+55W)
12. Power Adapter: 24V/3A
13. Total Harmonic Distortion: 0.001%
14. Signal-to-Noise Ratio S/N(dB): 92dB
15. Frequency Response Range (Hz): 15Hz-25Hz
16. Input Sensitivity (mV): 500mV
17. Power Supply Range: DC12V-24V
18. Color: Classic Black
The HiFiMuse Q7 is a high-performance desktop DAC and headphone amplifier designed for audiophiles. Equipped with dual ES9039Q2M DAC chips and an XMOS XU208 processor, it delivers ultra-clear sound with wide dynamic range and low distortion. Supporting Bluetooth 5.2 with aptX HD, USB, optical, and coaxial inputs, it ensures versatile connectivity for all your devices. With balanced and single-ended outputs, robust aluminum construction, and precision knob or remote control, the Q7 brings studio-grade performance to your home audio setup.
Product sellpoints:1.Bluetooth Connectivity:Seamless wireless audio streaming with Bluetooth, enhancing your home audio system.
2.Multiroom Compatibility:Expand your audio experience with multiroom capabilities, perfect for a smart speaker setup.
3.Portable Design:Lightweight and compact, this wireless audio device is your perfect portable speaker.
4.Universal 3.5mm Jack:Effortless connectivity with a universal 3.5mm jack, compatible with various audio devices.
5.Enhanced Sound Quality:The HiFiMuse R20 delivers high-fidelity sound, elevating your listening experience.
Note: The power plug is European gauge by default. Outlets and voltages vary internationally and an adapter or converter may be required to use this product at your destination.
Use the high-end ES9023 chip of the American ESS company
Power supply noise as low as 1uVrms using a dedicated high-performance DAC power supply chip
120Wx2CH@4ohm, 60Wx2CH@8ohm full digital amplifier.
Streaming music via network without distance limitation or Bluetooth5.0 up to 15 meters.
Bluetooth for true high resolution music.
Spotify connect, Airplay, Qplay, DLNA, UPnP streaming protocols supported.
Support streaming source from online services, smart device memory, USB pen drive, NAS, Bluetooth and line in.
Multiroom and multizone streaming enabled by mutiple units connected in same network.
All music sources can be restreamed in sync to other models from us.
Airplay, Spotify Connect, QPlay, DLNA, UPnP protocol and 3rd party app compatible.
High quality music streaming support, sample rate decoding up to 24bit, 192kHz.
Sportify, Deezer, Tidal, Qobuz, Amazon Music, Napster, Pandora, Internet Radio, iHeartRadio, TuneIn, QQMusic, lots of online streaming services integrated to use in the app.
Free iOS and Android app available.
Free global online update for new features.
Full function remote controller to use without cellphone.
Line input for more possible external audio input
EQ adjustment via app or remote controller.
Preset playlist is availble and short buttons on remote controller for one button play.
- iTunes working with PC streaming.
Product Parameters1.D/A chip: ESS9023;2.Support 2.4G network;3.the highest decoding rate: 192K/24B;4.PCM Sampling Frequencies: 44.1KHz;5.Support Bluetooth 5.0;6.Support protocols: DLNA, Airplay, spotify, etc;7.Operating voltage: 100-240V
Reminder:1.The product is free shipping in some countries, see the shipping reminder on the submit order page.2.The price of the product does not include tax, different countries need to pay the tax themselves!3.The product supports 1 year warranty, specific participation site warranty policy, support 30 days no reason to return, need to buyer to bear the freight.
Buyer Questions & Answers (6)What are the benefits of using this product?Using this product allows you to enjoy wireless audio playback, support for high-quality audio formats, easy content sharing via EZCast and DLNA, and hands-free convenience with built-in microphones.Under which category does this product fall?This product falls under the category of wireless speakers or multimedia devices.What makes this product stand out from others in its category?This product stands out due to its versatile connectivity options, support for numerous audio formats, and unique features like EZCast and DLNA.Can you describe the main functions of this product?Some of the main functions include wireless audio streaming, support for multiple audio formats, AirPlay compatibility, EZCast feature, and DLNA support.What are the applicable scenarios for this product?The product can be used in various scenarios such as home entertainment, office work, and outdoor activities.It has both WiFi and Bluetooth connectivity options. How does it choose which connection to use?The device automatically selects the best available connection between WiFi and Bluetooth based on speed and stability.What are the benefits of using this product?Using this product allows you to enjoy wireless audio playback, support for high-quality audio formats, easy content sharing via EZCast and DLNA, and hands-free convenience with built-in microphones.Under which category does this product fall?This product falls under the category of wireless speakers or multimedia devices.What makes this product stand out from others in its category?This product stands out due to its versatile connectivity options, support for numerous audio formats, and unique features like EZCast and DLNA.Can you describe the main functions of this product?Some of the main functions include wireless audio streaming, support for multiple audio formats, AirPlay compatibility, EZCast feature, and DLNA support.What are the applicable scenarios for this product?The product can be used in various scenarios such as home entertainment, office work, and outdoor activities.It has both WiFi and Bluetooth connectivity options. How does it choose which connection to use?The device automatically selects the best available connection between WiFi and Bluetooth based on speed and stability.
Reminder:1.The product is free shipping in some countries, see the shipping reminder on the submit order page.
2.The price of the product does not include tax, different countries need to pay the tax themselves!
3.The product supports 1 year warranty, specific participation site warranty policy, support 30 days no reason to return, need to buyer to bear the freight.
4.The device does not include a remote control, you can contact customer service to add the purchase if you need it!
parameters1、Support airplay2,Spotify connect,TiDAL connect,Oplay,DLNA and other protocols;2、Support 2.4g/5g network;3, support siri family group;4、Support optical fiber output, 3.5 output;5, the highest decoding 192k/24b;6, Support WiFi and Bluetooth 5.2;7, Free independent APP;
Reminder:1.The product is free shipping in some countries, see the shipping reminder on the submit order page.
2.The price of the product does not include tax, different countries need to pay the tax themselves!
3.The product supports 1 year warranty, specific participation site warranty policy, support 30 days no reason to return, need to buyer to bear the freight.
