{"id":1641881,"date":"2026-05-18T01:27:05","date_gmt":"2026-05-18T01:27:05","guid":{"rendered":"https:\/\/kingsideaconnections.org\/commerce\/?post_type=product&#038;p=1641881"},"modified":"2026-05-18T01:27:05","modified_gmt":"2026-05-18T01:27:05","slug":"6j1-valve-tube-preamplifier-board-module-bass-on-musical-fidelity-diy-kit-with-case","status":"publish","type":"product","link":"https:\/\/kingsideaconnections.org\/commerce\/product\/6j1-valve-tube-preamplifier-board-module-bass-on-musical-fidelity-diy-kit-with-case\/","title":{"rendered":"6J1 Valve Tube Preamplifier Board Module Bass on Musical Fidelity DIY Kit with Case"},"content":{"rendered":"<p>Specifications  Manual  Click here to open Name  6J1 Valve Tube Preamplifier Board DIY KitsModel  6j1 tube  can replace the model 6AK5  6AU6 5654  etc  Channel type  2 0   StereoWorking voltage  AC12V 0 8A or abovePower connector  5 5 x 2 5 plugBoard Dimensions  Width 77mm x Depth 75mm x Height 57mmFeatures 1  AC 12V input  DC5 5   2 1 socket  with AC 12V transformer  if you want to use plug free AC 12V transformer  you need to wire the power cord soldered on the circuit board  Remember  can not use DC power input  otherwise it does not work 2  Channel input  for the audio signal input  you can connect the phone  computer  M3  MP4  and other music players 3  Channel output  for the audio signal output  can be connected to the amplifier  power amplifier board audio signal input 4  Power switch   Volume knob  Turn the knob counterclockwise to begin lowering the volume  When the volume is turned to the minimum  if you continue to rotate until the   Ctick   is heard  the power is off and the indicator is off  In the closed state  Clockwise rotation  hear the   Ctick    the indicator light  that power has been turned on  then the volume is minimal  and then continue to clockwise rotation is to increase the volume How to use 6J1 tube buffer 0 85 times magnification enlarge  connect the sound source and the former level or after the class  can effectively filter digital flavor  the human voice is relatively good Notice This is DIY Kits  with case you need assemble it by yourself Package<\/p>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div> \n","protected":false},"excerpt":{"rendered":"<p>Manufacturer <\/p>\n","protected":false},"featured_media":3899453,"comment_status":"open","ping_status":"closed","template":"","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":""},"product_brand":[],"product_cat":[5134],"product_tag":[5129],"class_list":{"0":"post-1641881","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-diy-electronic-kits","7":"product_tag-united-states","9":"first","10":"instock","11":"sale","12":"shipping-taxable","13":"product-type-external"},"featured_media_urls":{"thumbnail":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",150,150,false],"medium":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",300,300,false],"medium_large":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",768,768,false],"large":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",950,950,false],"1536x1536":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",1200,1200,false],"2048x2048":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",1200,1200,false],"inspiro-featured-image":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",1200,1200,false],"inspiro-loop":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-950x320.webp",950,320,true],"inspiro-loop@2x":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-1200x640.webp",1200,640,true],"woocommerce_thumbnail":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-450x675.webp",450,675,true],"woocommerce_single":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-650x650.webp",650,650,true],"woocommerce_gallery_thumbnail":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-100x100.webp",100,100,true],"portfolio_item-thumbnail":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-600x400.webp",600,400,true],"portfolio_item-thumbnail@2x":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-1200x800.webp",1200,800,true],"portfolio_item-masonry":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-600x600.webp",600,600,true],"portfolio_item-masonry@2x":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",1200,1200,false],"portfolio_item-thumbnail_cinema":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-800x335.webp",800,335,true],"portfolio_item-thumbnail_portrait":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-600x900.webp",600,900,true],"portfolio_item-thumbnail_portrait@2x":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg.webp",1200,1200,false],"portfolio_item-thumbnail_square":["https:\/\/kingsideaconnections.org\/commerce\/wp-content\/uploads\/2026\/05\/2e48471f-0710-46dd-9c8d-10dedce0c14b.jpg-800x800.webp",800,800,true]},"_links":{"self":[{"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/product\/1641881","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/comments?post=1641881"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/media\/3899453"}],"wp:attachment":[{"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/media?parent=1641881"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/product_brand?post=1641881"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/product_cat?post=1641881"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/kingsideaconnections.org\/commerce\/wp-json\/wp\/v2\/product_tag?post=1641881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}