#picture_module .h_slide .gallery_nav{height:90px;padding-bottom:10px;}#picture_module .picture_carousel_radio:nth-of-type(1):checked ~ div > .gallery_img:nth-of-type(1),#picture_module .picture_carousel_radio:nth-of-type(2):checked ~ div > .gallery_img:nth-of-type(2),#picture_module .picture_carousel_radio:nth-of-type(3):checked ~ div > .gallery_img:nth-of-type(3),#picture_module .picture_carousel_radio:nth-of-type(4):checked ~ div > .gallery_img:nth-of-type(4),#picture_module .picture_carousel_radio:nth-of-type(5):checked ~ div > .gallery_img:nth-of-type(5),#picture_module .picture_carousel_radio:nth-of-type(6):checked ~ div > .gallery_img:nth-of-type(6),#picture_module .picture_carousel_radio:nth-of-type(7):checked ~ div > .gallery_img:nth-of-type(7),#picture_module .picture_carousel_radio:nth-of-type(8):checked ~ div > .gallery_img:nth-of-type(8),#picture_module .picture_carousel_radio:nth-of-type(9):checked ~ div > .gallery_img:nth-of-type(9),#picture_module .picture_carousel_radio:nth-of-type(10):checked ~ div > .gallery_img:nth-of-type(10){opacity:1;z-index:1;}.picture_carousel_radio:nth-of-type(2):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-100%);-moz-transform:translateX(-100%);-ms-transform:translateX(-100%);-o-transform:translateX(-100%);transform:translateX(-100%);}.picture_carousel_radio:nth-of-type(3):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-200%);-moz-transform:translateX(-200%);-ms-transform:translateX(-200%);-o-transform:translateX(-200%);transform:translateX(-200%);}.picture_carousel_radio:nth-of-type(4):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-300%);-moz-transform:translateX(-300%);-ms-transform:translateX(-300%);-o-transform:translateX(-300%);transform:translateX(-300%);}.picture_carousel_radio:nth-of-type(5):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-400%);-moz-transform:translateX(-400%);-ms-transform:translateX(-400%);-o-transform:translateX(-400%);transform:translateX(-400%);}.picture_carousel_radio:nth-of-type(6):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-500%);-moz-transform:translateX(-500%);-ms-transform:translateX(-500%);-o-transform:translateX(-500%);transform:translateX(-500%);}.picture_carousel_radio:nth-of-type(7):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-600%);-moz-transform:translateX(-600%);-ms-transform:translateX(-600%);-o-transform:translateX(-600%);transform:translateX(-600%);}.picture_carousel_radio:nth-of-type(8):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-700%);-moz-transform:translateX(-700%);-ms-transform:translateX(-700%);-o-transform:translateX(-700%);transform:translateX(-700%);}.picture_carousel_radio:nth-of-type(9):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-800%);-moz-transform:translateX(-800%);-ms-transform:translateX(-800%);-o-transform:translateX(-800%);transform:translateX(-800%);}.picture_carousel_radio:nth-of-type(10):checked ~ .picture_carousel_out > .gallery_img{-webkit-transform:translateX(-900%);-moz-transform:translateX(-900%);-ms-transform:translateX(-900%);-o-transform:translateX(-900%);transform:translateX(-900%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(4):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-100%);-moz-transform:translateX(-100%);-ms-transform:translateX(-100%);-o-transform:translateX(-100%);transform:translateX(-100%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(5):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-200%);-moz-transform:translateX(-200%);-ms-transform:translateX(-200%);-o-transform:translateX(-200%);transform:translateX(-200%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(6):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-300%);-moz-transform:translateX(-300%);-ms-transform:translateX(-300%);-o-transform:translateX(-300%);transform:translateX(-300%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(7):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-400%);-moz-transform:translateX(-400%);-ms-transform:translateX(-400%);-o-transform:translateX(-400%);transform:translateX(-400%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(8):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-500%);-moz-transform:translateX(-500%);-ms-transform:translateX(-500%);-o-transform:translateX(-500%);transform:translateX(-500%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(9):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-600%);-moz-transform:translateX(-600%);-ms-transform:translateX(-600%);-o-transform:translateX(-600%);transform:translateX(-600%);}#picture_module .h_slide .picture_carousel_radio:nth-of-type(10):checked ~ .gallery_nav > .gallery_img{-webkit-transform:translateX(-700%);-moz-transform:translateX(-700%);-ms-transform:translateX(-700%);-o-transform:translateX(-700%);transform:translateX(-700%);}Store CategoriesStore CategoriesUSA New Arrival——2022 Version2.0 Channel Amps2.1 Channel AmpsPreampsHeadphone AmpsSubwoofer AmpsDACBluetooth AmpsAmplifier BoardsFrom USA warehouseFrom EU warehouseNew Arrival——2023 VersionFrom AU warehouseOtherFosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble ControlProduct Description

　　Features：

　　300 Watts x2 Power Output: Provided by the TI TPA3255 chip which features an advanced feedback design and proprietary high-speed gate driver error correction. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5W.

　　High Efficiency: A significant upgrade from the BT20A amplifier. There're two plug-ins NE5532 Op-Amps can be replaced by MUSES02/OPA26041P/OPA2134PA Op-Amps etc. To create a different sound quality. SNR≥108dB; THD≤0.005%.

　　Upgraded Bluetooth 5.0 connectivity: By pressing and holding the volume control for five seconds, the Bluetooth pair can be cleared. In addition, it has a Bluetooth memory function, so it can be easily paired the next time. It also receives an alert tone.

　　Sound Control: With its unique design, the BT20A Pro amplifier for home audio has a wide range of bass and treble controls. Alternatively, you can turn the treble and bass effects to a middle point to listen to the original sound without effects.

　　Specifications：

　　Model：BT20A PRO

　　Output Power：300Wx2 @4Ω

　　Terminating Impedance：2-8Ω

　　Input Mode：Bluetooth + RCA

　　Output Mode：Passive Speakers + Pre-out

　　Frequency Range：20Hz-20kHz(±1.2dB)

　　THD ≤0.005%

　　SNR ≥108dB

　　Chip Set：TPA3255

　　Bluetooth Transmission Distance：Up to 50Ft

　　Bluetooth Transmission Format：SBC/AAC

　　Device Dimension：5x5x1 inches

　　DC Input Range：24-48V

　　Power Supply：32V 5A

　　What‘s in the box？

　　BT20A Pro Power Amplifier x 1

　　Bluetooth Antenna x 1

　　32V 5A Power Adapter x 1

　　AC Cord x 1

　　User’s Manual x 1

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