{"product_id":"buy-the-best-dc5-12v-eq-7-audio-signal-preamplifier-band-equalizer-adjust-high-school-bass-sound-phone-computer-headphone-amplifier-2026","title":"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier","description":"\u003cp style=\"text-align:center\" align=\"center\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S5d816f0862e54679b6680b0ffd250b2a1.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S5d816f0862e54679b6680b0ffd250b2a1.jpg\" data-files=\"S5d816f0862e54679b6680b0ffd250b2a1.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cdiv style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);background-color:rgb(255, 255, 255);margin:0px 0px 8px;margin-bottom:8px;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' class=\"product-title\" align=\"start\"\u003e\u003cbr\u003e\u003c\/div\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eFeature:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e1, seven stage balance adjustment range ±12db, composed of TI or ST original TL074 circuit.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e2, 60HZ, 150HZ, 400HZ, 1KHZ, 3KHZ, 6.5KHZ, 15KHZ seven frequency bands, the knob in the middle for the origin, counterclockwise for attenuation, clockwise for lifting.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e3, about the frequency description, 60HZ for the bass, 150HZ for the bass, 400HZ for the bass, 1KHZ for the alto, 3KHZ for the treble, 6.5KHZ for the treble, 15KHZ for the super treble, according to personal listening preferences to adjust.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e4, pre-amplification gain :4580 classic op amp provides 5 times amplification (14db).\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e5, the ear amplifier part uses two NE5532 composed of 47 earphone drive circuit, easily drive various types of earphones 16-600 euros.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e6, input impedance 20K, output impedance 600 euros.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e7, 3.5mm input and output interface support 3-pole \/ 4-pole plug, headphones with microphone can be normal voice calls on the mobile phone, suitable for game enthusiasts and music enthusiasts, another group lotus interface terminal is available.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e8, power supply: between DC5V-12V, the interface specification is 5.5*2.1, 5V power supply is about 390ma static current, 12V power supply is about 140ma, power consumption is about 1.8w.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eProduct parameters:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eVoltage: DC5-12V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003ePower interface: 5.5*2.1 interface\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eAudio interface: Lotus RCA\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eLength width height :11.4*8.5*3.2cm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003ePackage included:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e1 x DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eAttention:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e1. Input 3.5 cannot be used at the same time as Lotus port. Output 3.5 can be used at the same time as Lotus port.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e2. Can use a charging bank or high-quality charging head power supply, power supply is not pure may have a hum.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"60\" src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S98147737055e474b986f1363a35fe496h.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S98147737055e474b986f1363a35fe496h.jpg\" data-files=\"S98147737055e474b986f1363a35fe496h.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S8bedbd1eba9e49ffabc133e13e3e87b74.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S8bedbd1eba9e49ffabc133e13e3e87b74.jpg\" data-files=\"S8bedbd1eba9e49ffabc133e13e3e87b74.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S383cd38a4caa420ebb8c77e04bd01044L.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S383cd38a4caa420ebb8c77e04bd01044L.jpg\" data-files=\"S383cd38a4caa420ebb8c77e04bd01044L.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S7dd2c981d4a14a25ba5d6c66e40b1d1cs.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S7dd2c981d4a14a25ba5d6c66e40b1d1cs.jpg\" data-files=\"S7dd2c981d4a14a25ba5d6c66e40b1d1cs.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/Sa8bb6cd3bfa7419296cfdac8241037b92.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/Sa8bb6cd3bfa7419296cfdac8241037b92.jpg\" data-files=\"Sa8bb6cd3bfa7419296cfdac8241037b92.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/Sd3fe70cbc470482e942198794701f3fbT.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/Sd3fe70cbc470482e942198794701f3fbT.jpg\" data-files=\"Sd3fe70cbc470482e942198794701f3fbT.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/Sf858b759897b4cc59910203bc98c5527K.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/Sf858b759897b4cc59910203bc98c5527K.jpg\" data-files=\"Sf858b759897b4cc59910203bc98c5527K.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S1bb4f098acdd4d048225c14c9ae02c77Q.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S1bb4f098acdd4d048225c14c9ae02c77Q.jpg\" data-files=\"S1bb4f098acdd4d048225c14c9ae02c77Q.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/www.typebeatmusicstore.com\/cdn\/shop\/files\/S6b6c8327d6674c4abae70cbb2a4782afY.webp\" slate-data-type=\"image\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/S6b6c8327d6674c4abae70cbb2a4782afY.jpg\" data-files=\"S6b6c8327d6674c4abae70cbb2a4782afY.jpg\" alt=\"DC5-12V EQ-7 Audio Signal Preamplifier 7 Band Equalizer Adjust High School Bass Sound Phone Computer Headphone Amplifier\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Type Beat Music Store","offers":[{"title":"DC5.5x2.1","offer_id":46566200803518,"sku":"14:350686","price":37.99,"currency_code":"USD","in_stock":true},{"title":"US Plug","offer_id":46566200836286,"sku":"14:350850","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/5048\/2878\/files\/dc5-12v-eq-7-audio-signal-preamplifier-band-equalizer-adjust-high-school-bass-sound-phone-computer-headphone-amplifier-us-plug-type-beat-music-store-black-395.webp?v=1780325464","url":"https:\/\/www.typebeatmusicstore.com\/products\/buy-the-best-dc5-12v-eq-7-audio-signal-preamplifier-band-equalizer-adjust-high-school-bass-sound-phone-computer-headphone-amplifier-2026","provider":"Type Beat Music Store","version":"1.0","type":"link"}