{"id":8466,"date":"2017-11-24T22:11:48","date_gmt":"2017-11-24T22:11:48","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio2\/categorias\/sin%20categorizar\/vt-2-vacuum-tube-microphone-preamplifier\/"},"modified":"2026-06-15T08:32:40","modified_gmt":"2026-06-15T08:32:40","slug":"vt-2-vacuum-tube-microphone-preamplifier","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/preamplificadores-y-canales\/vt-2-vacuum-tube-microphone-preamplifier\/","title":{"rendered":"VT-2 Vacuum Tube Microphone Preamplifier"},"content":{"rendered":"

The VT-series microphone preamplifiers will change the way you think of audio quality. The transparency is astounding. Vocals sound smoother, warmer, more intimate, with a compelling presence. Any microphone and any sound will benefit from the improved clarity, definition, and lack of solid-state artifacts.<\/h3>\n
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Design Philosophy<\/strong><\/p>\n

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In designing the VT preamp, no compromise in sonic quality, reliability, or ruggedness was permitted. Like the best tube equipment of the 1950s and \u201960s, the VT preamp is built on a heavy-gauge aluminum chassis, utilizing point-to-point wiring. Each vacuum tube is selected for minimum noise and microphonics, and maximum sonic clarity. The front panel switches control sealed, gold-contact precision relays for all audio switching, eliminating the possibility of dirty contacts degrading the sound and minimizing the internal audio path. Four class-A triode amplifier sections (in two tubes) in each channel comprise the entire active circuit. This surprisingly simple circuit, along with top-quality components and careful design optimization, results in the sonic superiority that the VT preamp has become known for.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Features<\/h3>\n
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  • All vacuum-tube design<\/li>\n
  • Lo-Z input position for superior performance with transformerless mics<\/li>\n
  • Phase (polarity) reverse switch<\/li>\n
  • +48 volt phantom power (completely disconnected when off)<\/li>\n
  • Custom-design Jensen input and output transformers<\/li>\n
  • 20 dB input pad (switchable)<\/li>\n
  • True VU meters (amplifier isolated)<\/li>\n
  • All point-to-point audio wiring<\/li>\n
  • Gold input and output XLR connectors<\/li>\n
  • Polypropylene and polystyrene coupling capacitors<\/li>\n
  • All audio switching through gold-contact, sealed precision relays<\/li>\n
  • International operation on 100, 120, or 220 VAC, 50\/60 Hz<\/li>\n
  • CE certified, RoHS-compliant<\/li>\n
  • +4 dBm output<\/li>\n
  • Conservatively rated precision components and rugged construction for stability and long life<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n
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    Specifications<\/h3>\n
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    • Input 150 ohms<\/li>\n
    • Input Load Impedance 1.5k ohms<\/li>\n
    • Minimum Input Level -65 dBm nominal<\/li>\n
    • Maximum Input Level @ 20 cps -30 dBm without pad, -5 dBm with 20 dB pad<\/li>\n
    • Gain 53 dB<\/li>\n
    • Frequency Response +\/-0.25 dB 20 cps to 20 kc; -3 dB @ 0.5 cps and 55 kc<\/li>\n
    • THD+Noise less than 0.25% 20 cps to 20 kc<\/li>\n
    • Intermodulation Distortion SMPTE less than 0.02%<\/li>\n
    • Signal to Noise Ratio 74 dB minimum<\/li>\n
    • Equivalent Input Noise -124 dBm maximum<\/li>\n
    • Output low-Z, transformer-balanced<\/li>\n
    • Maximum Output Level +22 dBm, 20k ohm load<\/li>\n
    • Power Requirements 100, 120, or 220 VAC, 50\/60 Hz<\/li>\n
    • Dimensions 19\u201d (48.26cm) W, 5.25\u201d (13.34cm) H, 14\u201d (35.56cm) D<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      Previo de Micr\u00f3fono Valvular VT-2 Los preamplificadores de micr\u00f3fono de la s …<\/p>\n","protected":false},"featured_media":11915,"template":"","meta":[],"pwb-brand":[103],"product_brand":[],"product_cat":[1029],"product_tag":[426],"class_list":["post-8466","product","type-product","status-publish","has-post-thumbnail","pwb-brand-d-w-fearn","product_cat-preamplificadores-y-canales","product_tag-d-w-fearn-dw-fearn","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"brands":[{"id":103,"name":"D.W. FEARN","slug":"d-w-fearn"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/8466","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\/11915"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=8466"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=8466"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=8466"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=8466"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=8466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}