{"id":6538,"date":"2026-07-30T04:36:33","date_gmt":"2026-07-30T04:36:33","guid":{"rendered":"https:\/\/baflesoviedo.com\/home\/?post_type=product&#038;p=6538"},"modified":"2026-07-30T04:36:36","modified_gmt":"2026-07-30T04:36:36","slug":"audio-research-ph9-preamplificador-phono","status":"publish","type":"product","link":"https:\/\/baflesoviedo.com\/home\/product\/audio-research-ph9-preamplificador-phono\/","title":{"rendered":"Audio Research, PH9, Preamplificador Phono"},"content":{"rendered":"<h6><b>TECHNICAL SPECIFICATIONS<\/b><\/h6>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Frequency Response<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u00b1.2 dB of RIAA, 5 Hz to 20kHz; 1 dB points below 0.3Hz and above 80 kHz<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Distortion<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Less than .015% at 3V RMS 1kHz output<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Gain<\/span><\/td>\n<td><span style=\"font-weight: 400;\">58 dB at 1 kHz<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Input Impedance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Selectable loads: 47k, 1000, 500, 200, 100 Ohms<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Output Impedance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">200 ohms. Recommended load 50k-100k Ohms and 100 pF. (10k Ohms minimum and 2000 pF maximum).<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Output Polarity<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Non-inverting<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Maximum Input<\/span><\/td>\n<td><span style=\"font-weight: 400;\">80 mV RMS at 1kHz<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Rated Outputs<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.5V RMS 10 Hz to 60 kHz, into 100K ohm load (maximum balanced output capability is 0.46V RMS at less than 0.5% THD at 1kHz)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Controls<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6 Push Buttons: \u00a0 Power, Menu, Option, Enter, Input, Mute<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Power Supplies<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Electronically regulated low and high voltage supplies. \u00a0 Automatic 2 minute warm-up\/brown-out mute. Line regulation better than .01%<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Noise<\/span><\/td>\n<td><span style=\"font-weight: 400;\">77 dB, shorted inputs<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tube Complement<\/span><\/td>\n<td><span style=\"font-weight: 400;\">(3)-6H30P dual triodes, plus (1 each) 6550WE and 6H30P in power supply<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Power Requirements<\/span><\/td>\n<td><span style=\"font-weight: 400;\">100-125VAC 60Hz (200-250VAC 50\/60Hz) 120 watts maximum. Standby: 2 watts<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Dimensions<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Width: 19\u201d (48 cm)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Height: 6.5\u201d (13.7 cm)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Depth: 13.7\u201d (34.8 cm)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Handles extend 1.6\u201d (4 cm) forward of the front panel<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Weight: 15.4 lbs. (7 kg) Net; 23.5 lbs. (10.7 kg) Shipping<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/audioresearch.com\/new_website\/audio-research-ph9-phono-stage\/\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color: #0000ff;\">Click aqu\u00ed para m\u00e1s informaci\u00f3n del producto.<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"font-weight: 400;\">*Cont\u00e1ctenos para obtener el precio.<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">El PH9 ha sido dise\u00f1ado para ofrecer una reproducci\u00f3n anal\u00f3gica de alto nivel, combinando la reconocida musicalidad de Audio Research con un dise\u00f1o a v\u00e1lvulas refinado y una gran facilidad de uso. Su trayecto de se\u00f1al simple y cuidadosamente optimizado preserva toda la riqueza arm\u00f3nica del vinilo, mientras que sus m\u00faltiples opciones de ajuste permiten adaptarse a una amplia variedad de c\u00e1psulas fonocaptoras. El resultado es una escena sonora amplia, una transparencia excepcional y una reproducci\u00f3n natural que revela cada matiz de la grabaci\u00f3n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Caracter\u00edsticas principales:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Circuiter\u00eda completamente a v\u00e1lvulas, equipada con tres v\u00e1lvulas 6H30 en la etapa de audio y una 6550WE junto con una 6H30 en la fuente de alimentaci\u00f3n, para ofrecer una reproducci\u00f3n transparente y de gran riqueza arm\u00f3nica.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cinco opciones de carga para c\u00e1psulas, seleccionables desde el control remoto (47 k\u03a9, 1000, 500, 200 y 100 \u03a9), permitiendo optimizar el desempe\u00f1o de una amplia variedad de c\u00e1psulas MC y MM.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ecualizaci\u00f3n RIAA de alta precisi\u00f3n, con respuesta en frecuencia de 5 Hz a 20 kHz (\u00b10,2 dB) y extensi\u00f3n hasta 80 kHz, para una reproducci\u00f3n fiel y detallada.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fuente de alimentaci\u00f3n electr\u00f3nicamente regulada, con calentamiento autom\u00e1tico, protecci\u00f3n durante variaciones de tensi\u00f3n y un nivel de ruido extremadamente bajo para preservar la integridad de la se\u00f1al.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Construcci\u00f3n audi\u00f3fila con control remoto met\u00e1lico, pantalla de informaci\u00f3n para visualizar la carga seleccionada, horas de uso de las v\u00e1lvulas y otras funciones del sistema, ofreciendo una experiencia de uso pr\u00e1ctica y sofisticada.<\/span><\/li>\n<\/ul>\n","protected":false},"featured_media":6539,"template":"","meta":[],"product_cat":[20],"product_tag":[132,185,216],"_links":{"self":[{"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/product\/6538"}],"collection":[{"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/media\/6539"}],"wp:attachment":[{"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/media?parent=6538"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/product_cat?post=6538"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/baflesoviedo.com\/home\/wp-json\/wp\/v2\/product_tag?post=6538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}