{"product_id":"ha400-mini-4-channel-headphone-amplifier","title":"HA400 Mini 4-Channel Headphone Amplifier","description":"\u003cp\u003eThe HA400 Mini Headphone Amplifier is a compact multi-user audio distribution unit designed for studio monitoring and shared listening environments. It allows multiple users to listen to the same audio source simultaneously, each with independent volume control for flexible monitoring.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e4 Independent Headphone Channels:\u003c\/strong\u003e Supports up to four headphones from a single audio input source.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eIndividual Volume Control:\u003c\/strong\u003e Each output channel includes its own level adjustment for personalized monitoring.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e Small footprint suitable for desktop studios, rehearsal spaces, and portable setups.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Audio Output:\u003c\/strong\u003e Built with low-noise operational amplifier circuitry to maintain clear and stable sound at all volume levels.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eStudio and Stage Ready:\u003c\/strong\u003e Suitable for recording sessions, practice environments, and multi-listener audio setups.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSingle Input Distribution:\u003c\/strong\u003e Accepts one audio input and distributes it across four headphone outputs.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eExternal Power Supply Included:\u003c\/strong\u003e Powered via DC 12V adapter for stable performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HA400 Mini Amplifier\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 4 Output Channels\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e Line In (Audio Input)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e Line Out (Audio Output)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eOperational Amplifier Chip:\u003c\/strong\u003e JRC4560\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e ±4V to ±18V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGain Bandwidth Product:\u003c\/strong\u003e 10 MHz\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 4 V\/µs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eRecommended Headphone Impedance:\u003c\/strong\u003e 65–80Ω\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e DC 12V Adapter Included\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e No\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eWi-Fi:\u003c\/strong\u003e No\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBuilt-in Battery:\u003c\/strong\u003e No\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's in the Box:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e1 × HA400 Mini Headphone Amplifier\u003c\/li\u003e\n\t\u003cli\u003e1 × DC 12V Power Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp style=\"font-family:OpenSans;font-size:20px;font-weight:900;line-height:28px;white-space:pre-wrap;margin:0px 0px 12px;margin-bottom:12px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Pluginerds Shop","offers":[{"title":"Black EU Plug","offer_id":57765387272575,"sku":"14:366#Black EU Plug","price":26.0,"currency_code":"GBP","in_stock":true},{"title":"Black US Plug","offer_id":57765387338111,"sku":"14:496#Black US Plug","price":26.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/7294\/6047\/files\/Sda2f4ab23ae74eca95ccbbf9d7468dde7.webp?v=1781596952","url":"https:\/\/shop.pluginerds.com\/products\/ha400-mini-4-channel-headphone-amplifier","provider":"Pluginerds Shop","version":"1.0","type":"link"}