{"id":128684,"date":"2025-05-22T06:57:35","date_gmt":"2025-05-21T22:57:35","guid":{"rendered":"https:\/\/soundglory.com\/product\/canary-audioca903-preamplifier\/"},"modified":"2025-05-22T06:57:35","modified_gmt":"2025-05-21T22:57:35","slug":"canary-audioca903-preamplifier","status":"publish","type":"product","link":"https:\/\/soundglory.com\/en\/product\/canary-audioca903-preamplifier\/","title":{"rendered":"CANARY AUDIO<br\/>CA903 Preamplifier"},"content":{"rendered":"<p>Four-unit design completely separates the left and right channel amplification and power supply sections, eliminating any phase interference.<\/p>\n<p>Precision direct current tube rectification and voltage regulation circuitry fully unleashes the ultimate sound quality of vacuum tubes.<\/p>\n<p>Strictly select components at all levels to fully express the essence of circuit design.<\/p>\n<p>Exquisitely crafted ELMA volume control with 24-level pure gold contacts, offering extremely low distortion.<\/p>\n<p>Entire unit uses a military-grade TELFON baseboard and silver TELFON signal wiring.<\/p>\n<p>Vacuum tubes (per channel): 1 x 12AU7, 1 x 12AX7 &#8211; Amplification<\/p>\n<p>1 x 5Y3, 1 x EF86, 1 x 12BH7 &#8211; Power Supply<\/p>\n<p>Frequency response: 5 &#8211; 118,500Hz +\/- 0.04dB<\/p>\n<p>Maximum gain: 12.3dB<\/p>\n<p>&lt;THD distortion rate: 0.01%<\/p>\n<p>Signal-to-noise ratio: -90dB<\/p>\n<p>Input impedance: 50K\u03a9 &#8211; 100K\u03a9<\/p>\n<p>Output impedance: 1,200\u03a9<\/p>\n<p>Input terminals: 4 x RCA<\/p>\n<p>Output terminals: 2 x RCA<\/p>\n<p>Dimensions (per channel): 28(W) x 38(D) x 12.5(H)cm &#8211; Amplification<\/p>\n<p>28.5(W) x 38(D) x 12.5(H)cm &#8211; Power Supply<\/p>\n<p>Weight (per channel): 6kg &#8211; Amplification<\/p>\n<p>9Kg &#8211; Power Supply<\/p>\n<div style=\"margin: 20px 0;\"><div class=\"qrcswholewtapper\" style=\"text-align:left;\"><div class=\"qrcprowrapper\"  id=\"qrcwraa2leds\"><div class=\"qrc_canvass\" id=\"qrc_cuttenpages_2\" style=\"display:inline-block\" data-text=\"https:\/\/soundglory.com\/en\/product\/canary-audioca903-preamplifier\/\"><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Four-unit design completely separates the left and right channel amplification and power supply sections, eliminating any phase interference. Precision direct current tube rectification and voltage&#8230;<\/p>\n","protected":false},"featured_media":118473,"template":"","meta":[],"pwb-brand":[9843],"product_cat":[10176,11066],"product_tag":[],"class_list":{"0":"post-128684","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"pwb-brand-canary-audio","7":"product_cat-preamplifier","8":"product_cat-canary-audio-preamplifier","9":"product_shipping_class-c-class","11":"first","12":"instock","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"aioseo_notices":[],"etheme_brands":{"errors":{"invalid_taxonomy":["Invalid taxonomy."]},"error_data":[]},"brands":[{"id":9843,"name":"CANARY AUDIO","slug":"canary-audio"}],"_links":{"self":[{"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/product\/128684","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/product\/128684\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/media\/118473"}],"wp:attachment":[{"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/media?parent=128684"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/pwb-brand?post=128684"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/product_cat?post=128684"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/soundglory.com\/en\/wp-json\/wp\/v2\/product_tag?post=128684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}