Unique output design and independent control: 4.0 channel can be divided into two groups of 2.0 channel outputs, and the volume of each group can be adjusted separately. And specailly design a low frequency output to connect active subwoofer, very convenient to build 2.0/2.1/4.0/4.1 channel system.
Rated 45W × 4 output power: supporst speakers with 4-8 ohm impedance, easily to drive most home & car & boat speakers, can give your entertainment system a boost, with unrivaled sound superiority and lets you enjoy high quality amplified audio.
Multiple audio inputs: besides Bluetooth5.0/stereo RCA/3.5mm AUX inputs, which can be compatible with ipad, cellphone, MP3 player, CD player, dataplay, computer, decoder, etc. Also with USB(U-disk)/SD Card/MMC Card inputs, easily to enjoy high-quality los
Add to Favorites Seller
Join newsletter
New Arrival
Ending Soon
View Feedback
About Us
Contact Us
View All Categories
Nobsound & Douk Audio
Add-on Items
US Warehouse
UK Warehouse
DE Warehouse
AU Warehouse
Digital Amplifier
Tube Amplifier
Audio Amplifier
Preamp & Phono Stage
Headphone Amplifier
DAC & Audio Adapter
Audio Splitter/Switcher
Audio Processor
Audio Player
Music Spectrum & Clock
Empty Chassis
Record Player & Turntable Part
Power Supply
Vacuum Tubes
Hi-Fi Speakers
Hi-Fi Cable
Transformer
Radio Communication
Audio Accessories
Other
Home
Feedback
Save Seller
New Listed
Ending Soon
Contact us
Store Category
Nobsound & Douk Audio
Add-on Items
US Warehouse
Add-on Items
Amplifier
Preamp & Phono Stage
Headphone Amplifier
DAC & Audio Adapter
Audio Splitter/Switcher
Music Spectrum & Clock
Audio Accessories
Other
UK Warehouse
Add-on Items
Digital Amplifier
Tube Amplifier
Hi-Fi Amplifier
Preamp & Phono Stage
Headphone Amplifier
DAC & Audio Adapter
Audio Splitter/Switcher
Audio Processor
Music Spectrum & Clock
Record Player & Turntable Part
Audio Board & DIY Kit
Audio Accessories
Other
DE Warehouse
Add-on Items
Digital Amplifier
Tube Amplifier
Hi-Fi Amplifier
Preamp & Phono Stage
Headphone Amplifier
DAC & Audio Adapter
Audio Splitter/Switcher
Audio Processor
Music Spectrum & Clock
Aluminum Chassis
Record Player & Turntable Part
Audio Board & DIY Kit
Radio Communication
Audio Accessories
Other
AU Warehouse
Add-on Items
Amplifier
Preamp & Phono Stage
Headphone Amplifier
DAC & Audio Adapter
Audio Splitter/Switcher
Music Spectrum & Clock
Audio Accessories
Other
Digital Amplifier
Multi-Function
Mono Channel
2.0 Channel
2.1 Channel
4.0 Channel
5.1 Channel
Tube Amplifier
DIY Kit
Hybrid Amplifier
Mini Tube Amplifier
EL34 Tube Amplifier
KT88 Tube Amplifier
300B Tube Amplifier
Other Tube Amplifier
Audio Amplifier
Mini Amplifier
Integrated Amplifier
Power Amplifier
Audio Board & DIY Kit
Preamp & Phono Stage
Tube Preamp
Digital Preamp
Phono Preamp
Passive Preamp
Audio Board & DIY Kit
Headphone Amplifier
Mini Headphone Amp
Desktop Headphone Amp
Portable Headphone Amp
Tube Headphone Amp
DAC & Audio Adapter
Audio Adapter
USB DAC
Bluetooth Receiver/Transmitter
Digital Interface
Audio Board & DIY Kit
Audio Splitter/Switcher
Speaker Switcher
Bluetooth & XLR & MIC
2 Way
3 Way
4 Way
Multiple Way
Audio Processor
Guitar Effects
Equalizer
Audio Mixer
Noise Isolator
Audio Player
Digital Player
Record Player
CD Player
Portable Player
Music Spectrum & Clock
Analog VU Meter
Tube Sound Level Meter
LED Sound Level Meter
VFD Audio Spectrum
LED Clock
Nixie Tube Clock
VFD Tube Clock
IPS Nixie Clock
Oscilloscope Tube Clock
Board & DIY Kit
Other
Empty Chassis
Small-sized
Medium-sized
Large-sized
Personalized
Record Player & Turntable Part
Set-up Transformer
Record Weight & Clamp
Cleaning Kit
Scale Gauge
Platter Mat
Dust Cover
Needle
Other
Power Supply
Linear Power Supply
Switching Power Supply
Power Supply Filter
USB Charging Hub
Board & DIY Kit
Vacuum Tubes
Shuguang Tube
PSVANE Tube
Tube Socket
Tube Tester Probe
Hi-Fi Speakers
Frequency Divider
Speaker Unit
Hi-Fi Cable
RCA Audio Cable
1/8 & 1/4 Stereo Jack Cable
Speaker Cable
USB Cable
Optical Fiber Cable
Conversion Cable
Dock Cable
Other
Transformer
Toroidal transformer
Output Transformer
Other
Radio Communication
Tesla Coil
Transmitter & Receiver
Signal Generator
Antennas & Tuners
Shortwave Radios
Ham Amateur Radio
Audio Accessories
Volume Controller
Mount Stand Bracket
Feet & Pads
Op Amp
Headphone
Current Meter
Other
Other
Join Our Newsletter
Receive our email newsletters about new items and special promotions!
Sign Up Now !
S299 4Channel Bluetooth Digital Amplifier for Home/Car Speaker Audio Power Amp
Item description
Features
Unique output design and independent control: 4.0 channel can be divided into two groups of 2.0 channel outputs, and the volume of each group can be adjusted separately. And specailly design a low frequency output to connect active subwoofer, very convenient to build 2.0/2.1/4.0/4.1 channel system.
Rated 45W × 4 output power: supporst speakers with 4-8 ohm impedance, easily to drive most home & car & boat speakers, can give your entertainment system a boost, with unrivaled sound superiority and lets you enjoy high quality amplified audio.
Multiple audio inputs: besides Bluetooth5.0/stereo RCA/3.5mm AUX inputs, which can be compatible with ipad, cellphone, MP3 player, CD player, dataplay, computer, decoder, etc. Also with USB(U-disk)/SD Card/MMC Card inputs, easily to enjoy high-quality lossless music at home or on the road.
Perfect design with powerful function: with volume knob, treble and bass control, easy to get more delicate sound. Designed LED display to clearly show the working status in real time, and euipped with remote control, much easier to use, very suitable for indoor and outdoor audio system use.
DC 12V-14V working voltage suits many places: beside used in home desktop audio system, it also can be used in your car, your boat, your RV, your golf cart—anywhere you need a great amplifier with low distortion and acoustically accurate reproduction of music.
Parameters
Audio input: Bluetooth / USB(U-disk) / stereo RCA / 3.5mm AUX / SD & MMC Card
Audio output: raw cable speaker jacks / low frequency output (connect active subwoofer)
Bluetooth version:5.0
Number of channel: 4.0 (also support 2.0/2.1/4.1)
U-disk/SD/MMC supported formats: MP3 / APE / FLAC / WMA /WAV
Max. capacity of U-disk/SD/MMC: 64G
Max output power: 45W×4
Speaker impedance: 4-8Ω
Frequency reponse: 20Hz-20KHz
Distortion: