{"product_id":"car-mp3-player-power-amplifier-with-usb-sd-card-support-fm-radio-20w-x-2-stereo-audio-receiver-12v-remote-control-hy-400-mini-portable-speaker-system-black","title":"Car MP3 Player Power Amplifier with USB SD Card Support FM Radio 20W x 2 Stereo Audio Receiver 12V Remote Control HY-400 Mini Portable Speaker System Black","description":"\u003ch1\u003eCar MP3 Player Amplifier with USB\/SD and FM Radio – 20W x 2 Stereo Receiver HY-400\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HY-400 car MP3 player power amplifier with USB\/SD slots and remote control, compact black unit\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/6618\/2025-10-27\/original-image\/1527136179345.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis compact car MP3 power amplifier is a practical upgrade for any vehicle sound system. It plays MP3 music directly from a USB stick or SD\/MMC card and includes a full FM stereo radio tuner. With four DSP sound field patterns, minimal harmonic distortion of 0.05%, and an 85dB signal-to-noise ratio, the unit delivers clear, powerful audio from a tiny 15.5cm by 8.5cm by 4cm chassis. Whether you need a simple plug-and-play audio source or a flexible amplifier for your car's existing speakers, this model combines convenience and sound quality without taking up dashboard space.\u003c\/p\u003e\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HY-400 car MP3 player power amplifier with USB\/SD slots and remote control, compact black unit\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/6618\/2025-10-27\/original-image\/1703742683280.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe HY-400 is built around a high-power four-channel professional amplifier integrated circuit designed to minimise distortion while providing strong output. The front panel includes slots for USB and SD\/MMC media, a small LCD display, and controls for volume, source, and track selection.\u003c\/p\u003e\u003ch3\u003eAudio Performance\u003c\/h3\u003e\u003cp\u003eFrequency response spans 20Hz to 20KHz with total harmonic distortion rated at 0.05% or less at 4W and 1KHz. The signal-to-noise ratio of 85dB helps keep background noise low. Bass and treble controls give 12dB of adjustment each, and the signal input level is 220mV at 47K ohms.\u003c\/p\u003e\u003ch3\u003ePower and Output Channels\u003c\/h3\u003e\u003cp\u003eThe amplifier delivers 20W per channel across two main and two surround channels, powered by a standard DC 12V car supply. This is sufficient for most aftermarket or factory speaker setups, providing clear sound for music or FM radio.\u003c\/p\u003e\u003ch3\u003eDSP Sound Field Modes\u003c\/h3\u003e\u003cp\u003eFour DSP sound field patterns let you tailor the audio to different music genres or listening environments, enhancing the listening experience without needing a separate equaliser.\u003c\/p\u003e\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HY-400 car MP3 player power amplifier with USB\/SD slots and remote control, compact black unit\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/6618\/2025-10-27\/original-image\/1877391811008.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis amplifier is designed for in-car use, connecting directly to a 12V electrical system. Its compact size means it fits into tight spaces such as under the dashboard or inside a glovebox.\u003c\/p\u003e\u003ch3\u003eIn-Car Music Playback\u003c\/h3\u003e\u003cp\u003eUse a USB stick or SD card full of MP3 files for direct playback without phone pairing or streaming. The FM radio adds extra listening options for news or traffic updates.\u003c\/p\u003e\u003ch3\u003eStereo Upgrade\u003c\/h3\u003e\u003cp\u003eIf your car lacks an auxiliary input or Bluetooth, this unit provides a straightfoward wired audio solution with four channels of amplified output. It works with most 4-ohm speaker systems commonly found in vehicles.\u003c\/p\u003e\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"HY-400 car MP3 player power amplifier with USB\/SD slots and remote control, compact black unit\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/6618\/2025-10-27\/original-image\/235897413675.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe HY-400 offers multiple audio sources in one box, reducing the need for separate devices. The remote control, powered by a CR2025 battery, allows safe operation while driving.\u003c\/p\u003e\u003ch3\u003eCompact and Portable\u003c\/h3\u003e\u003cp\u003eWeighing only 0.25kg and measuring 15.5cm x 8.5cm x 4cm, the amplifier is easy to install or move between vehicles. The wired USB connection is reliable and doesn't drain a phone battery.\u003c\/p\u003e\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\u003cp\u003eFor a straightforward car audio upgrade with USB\/SD playback, FM radio, and four-channel amplification, the HY-400 covers the essentials without complex wiring or expensive equipment. The DSP modes are a useful extra for tailoring sound to your taste.\u003c\/p\u003e","brand":"qhntmx-d5","offers":[{"title":"default","offer_id":53972945764685,"sku":"CJQCWBQT00018-default","price":32.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9539\/5405\/files\/1877391811008.webp?v=1779629515","url":"https:\/\/anverelle.com\/products\/car-mp3-player-power-amplifier-with-usb-sd-card-support-fm-radio-20w-x-2-stereo-audio-receiver-12v-remote-control-hy-400-mini-portable-speaker-system-black","provider":"Anverelle","version":"1.0","type":"link"}