{"id":7800,"date":"2017-11-21T17:03:37","date_gmt":"2017-11-21T17:03:37","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio2\/categorias\/sin%20categorizar\/pm-1a-mic-pre-di\/"},"modified":"2026-07-07T13:20:06","modified_gmt":"2026-07-07T13:20:06","slug":"pm-1a-mic-pre-di","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/preamplificadores-y-canales\/pm-1a-mic-pre-di\/","title":{"rendered":"PM 1A Mic Pre\/DI"},"content":{"rendered":"<p>The PM 1A is a combined mic preamp\/DI, based on a classic TUBE-TECH design, but featuring even higher fidelity and a few new features: An impedance switch to match the input perfectly to all types of microphones, an overload indicator and 2 dB gain steps.<\/p>\n<p><strong>Serious listening tests of the PM 1A have revealed a sound quality second to none, placing it among a handful of the worlds very best designs.<\/strong><\/p>\n<p>The PM 1A DI continues the TUBE-TECH tradition of extremely good sounding DI\u2019s, delivering world class sound for bass and guitar DI recordings. You simply won\u2019t find a better DI than this!<\/p>\n<p>Note: Due to the high quality of the TUBE-TECH RM Series power supply and the pristine audio circuits, the Modular Series products deliver exactly the same uncompromised sound quality as our 19\u201d units.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Features<\/strong><\/p>\n<ul>\n<li>All-tube design featuring push-pull output amplifier<\/li>\n<li>Frequency response @ -3 dB: 5 Hz to 60 kHz<\/li>\n<li>Typical noise: 5 dB @ 200\u03a9<\/li>\n<li>CMRR: &gt; 60 dB @ 10 kHz<\/li>\n<li>Gain: +10 dB to +70 dB in 2 dB steps \u2013 DI gain: 0-60 dB<\/li>\n<li>Selectable mic input impedance: 600 \u03a9\/1.2 k\u03a9\/2.4 k\u03a9<\/li>\n<li>Selectable pad in front of input transformer (-20 dB)<\/li>\n<li>Selectable +48 V phantom power<\/li>\n<li>Low cut filter (20 Hz\/40 Hz\/Off)<\/li>\n<li>Phase reverse<\/li>\n<li>Overload indicator<\/li>\n<li>Gold plated switches<\/li>\n<li>DI Jack input for a variety of instruments<\/li>\n<li>DI input impedance &gt; 1 M\u03a9<\/li>\n<li>MU-metal shielded input transformer<\/li>\n<li>In- and output are transformer balanced and fully floating<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Technical Description<\/strong><\/p>\n<p>The TUBE-TECH PM 1A is a combined Microphone Preamplifier and Direct Instrument amplifier.<\/p>\n<p>The input provides a switchable +48 V phantom power, a select-able mic. impedance of 600\/1200\/2400 Ohm, a phase reverse switch, a low-cut filter (20 Hz\/40 Hz\/off), as well as a switchable -20 dB pad. Gain is adjustable from +10 dB to +70 dB.<\/p>\n<p>The Direct Instrument Input are unbalanced with a gain ranging from + 10 dB to + 60 dB. The amplifier is all tube. Input transformer is enclosed in a MU-metal can. Input and output transformers come with a static screen between the primary and secondary wirings. The input and output are balanced as well as fully floating.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The PM 1A is a combined mic preamp\/DI, based on a classic TUBE-TECH design, but featuring even higher fidelity and a few new features: An impedance switch to match the input perfectly to all types of microphones, an overload indicator and 2 dB gain steps.<\/p>\n","protected":false},"featured_media":11820,"template":"","meta":[],"pwb-brand":[229],"product_brand":[],"product_cat":[1029],"product_tag":[480],"class_list":["post-7800","product","type-product","status-publish","has-post-thumbnail","pwb-brand-tube-tech","product_cat-preamplificadores-y-canales","product_tag-tube-tech","first","outofstock","taxable","shipping-taxable","product-type-simple"],"brands":[{"id":229,"name":"TUBE-TECH","slug":"tube-tech"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/7800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media\/11820"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=7800"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=7800"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=7800"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=7800"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=7800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}