{"id":140215,"date":"2026-06-10T01:20:23","date_gmt":"2026-06-10T05:20:23","guid":{"rendered":"https:\/\/add-tronique.com\/boutique\/uncategorized\/fosi-audio-bt20a-pro-48v-amplificateur-stereo-bluetooth\/"},"modified":"2026-06-10T12:51:43","modified_gmt":"2026-06-10T16:51:43","slug":"fosi-audio-bt20a-pro-48v-amplificateur-stereo-bluetooth","status":"publish","type":"product","link":"https:\/\/add-tronique.com\/en\/boutique\/audio-audio-and-accessories\/amplifiers\/fosi-audio-bt20a-pro-48v-amplificateur-stereo-bluetooth\/","title":{"rendered":"Fosi Audio BT20A Pro 48V \u2013 Amplificateur st\u00e9r\u00e9o Bluetooth"},"content":{"rendered":"
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-\u26a1Fosi Audio BT20A Pro 48V \u2013 Amplificateur st\u00e9r\u00e9o Bluetooth<\/h1>\n<\/div>\n<\/div>\n<\/div>\n
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TPA3255 \u2013 Bluetooth 5.0 \u2013 RCA \u2013 Pre-out \u2013 300W x2<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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\ud83d\udccc Product description<\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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The Fosi Audio BT20A Pro 48V is a compact stereo amplifier designed to deliver more power and greater flexibility in an easy-to-use package. It features the Texas Instruments TPA3255 chip and supports Bluetooth 5.0 as well as an RCA input for easy connection to your audio sources. <\/p>\n

With its 48V power supply, it can deliver up to 300W x2 at 4\u03a9, while remaining compatible with speakers ranging from 2\u03a9 to 8\u03a9. It also features a pre-out, bass\/treble controls, and replaceable op-amps to customize the sound. <\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Key features<\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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    Compact Bluetooth stereo amplifier.<\/p>\n<\/li>\n

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    Texas Instruments TPA3255 chip.<\/p>\n<\/li>\n

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    Bluetooth 5.0 with pairing memory.<\/p>\n<\/li>\n

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    RCA input.<\/p>\n<\/li>\n

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    3.5 mm pre-out jack.<\/p>\n<\/li>\n

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    Bass and treble settings.<\/p>\n<\/li>\n

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    Replaceable op-amps.<\/p>\n<\/li>\n

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    Compatible with 24V to 48V power supplies.<\/p>\n<\/li>\n

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    48V version included with a 48V 5A power supply.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

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    \ud83d\udd27 Technical Specifications<\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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      Type: Class-D stereo amplifier.<\/p>\n<\/li>\n

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      Chipset: Texas Instruments TPA3255.<\/p>\n<\/li>\n

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      Inputs: Bluetooth 5.0, RCA.<\/p>\n<\/li>\n

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      Outputs: speaker output, 3.5 mm pre-amp output.<\/p>\n<\/li>\n

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      Power: 300W x 2 @ 4\u03a9.<\/p>\n<\/li>\n

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      Supported impedance: 2\u03a9 to 8\u03a9.<\/p>\n<\/li>\n

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      Frequency response: 20 Hz\u201320 kHz (\u00b11.2 dB).<\/p>\n<\/li>\n

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      THD :<\/strong> \u22640.005%.<\/p>\n<\/li>\n

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      SNR :<\/strong> \u2265108dB.<\/p>\n<\/li>\n

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      Bluetooth range: up to 50 ft.<\/p>\n<\/li>\n

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      Power supply: 24V\u201348V DC, 48V\/5A version.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

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      \ud83c\udfa7 Applications<\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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        Desktop hi-fi system.<\/p>\n<\/li>\n

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        Small living room set.<\/p>\n<\/li>\n

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        Passive speakers with an impedance of 2\u03a9 to 8\u03a9.<\/p>\n<\/li>\n

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        For use with a subwoofer via the pre-out.<\/p>\n<\/li>\n

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        A simple yet powerful audio system.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

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        \ud83d\udcaa Benefits<\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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          High power in a compact design.<\/p>\n<\/li>\n

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          Bluetooth 5.0 (stable).<\/p>\n<\/li>\n

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          Handy tone settings.<\/p>\n<\/li>\n

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          Pre-out output for greater flexibility.<\/p>\n<\/li>\n

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          Replaceable op-amps for customising the sound.<\/p>\n<\/li>\n

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          The 48V power supply is included in the version you are looking for.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

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          \ud83d\udce6 Box contents<\/h2>\n<\/div>\n<\/div>\n<\/div>\n
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            1 \u00d7 Fosi Audio BT20A Pro 48V.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

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              1 \u00d7 48V\/5A power supply.<\/p>\n<\/li>\n

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              1 \u00d7 Bluetooth antenna.<\/p>\n<\/li>\n

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              1 \u00d7 User manual.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

              -\u26a1Fosi Audio BT20A Pro 48V \u2013 Amplificateur st\u00e9r\u00e9o Bluetooth TPA3255 \u2013 Bluetooth 5.0 \u2013 RCA \u2013 Pre-out \u2013 300W x2 \ud83d\udccc Product description The Fosi Audio BT20A Pro 48V is a compact stereo amplifier designed to deliver more power and greater flexibility in an easy-to-use package. It features the Texas Instruments TPA3255 chip and supports […]<\/p>\n","protected":false},"featured_media":140214,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[13403,11342,27835],"product_tag":[27900,27862,27839,27887,27898,14520,27899,11692,27897,27860],"class_list":{"0":"post-140215","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplifiers","7":"product_cat-audio-audio-and-accessories","8":"product_cat-fosi-audio","9":"product_tag-300w-x2","10":"product_tag-48v","11":"product_tag-bluetooth-5-0","12":"product_tag-class-d-amplifier-3","13":"product_tag-fosi-audio-bt20a-pro-48v","14":"product_tag-hi-fi-en","15":"product_tag-pre-out","16":"product_tag-rca-en","17":"product_tag-stereo-amplifier-3","18":"product_tag-tpa3255","20":"first","21":"instock","22":"taxable","23":"shipping-taxable","24":"purchasable","25":"product-type-simple"},"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":3,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"yoast_head":"\nFosi Audio BT20A Pro 48V \u2013 Amplificateur st\u00e9r\u00e9o Bluetooth - Add-Tronique<\/title>\n<meta name=\"description\" content=\"Fosi Audio BT20A Pro 48V: TPA3255 stereo amplifier with Bluetooth 5.0, RCA, pre-out, 300W x2 and 48V power supply. 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