{"product_id":"black-lion-audio-b173-500-preamp","title":"Black Lion Audio B173 500 Series Microphone Preamp","description":"\u003cp\u003eThe B173 is one of the most “bang for your buck” preamps in existence, and is now available  in the 500 series format. The \u003cstrong\u003eBlack Lion Audio B173 500\u003c\/strong\u003e not only delivers the beefy lows, buttery mids, and  polished highs of a classic 1073 preamp, but does so at a fraction of the price!\u003c\/p\u003e    \u003cp\u003eThe preamp and line amp circuitry found in the B173 500 is identical to the original B173.  Not a single component or design feature was compromised while converting it to a  smaller package. As a result, the circuit boards are jam packed with all sorts of delicious  components, including a brawny Cinemag input transformer!\u003c\/p\u003e    \u003cp\u003eThe power supply is the backbone of any preamp design, and can make a huge impact on  the overall sound and performance of the preamp. The +24V rail needed to power the B173  500 is painstakingly converted from the +\/- 16V rails of a 500 series rack using a custom  DC-DC converter circuit specially designed to keep any unwanted noise or modulations out  of the signal path. Complete isolation is then achieved through the use of inductors, ferrite  beads, decoupling capacitors, power regulation, and a custom enclosure surrounding the  entire circuit.\u003c\/p\u003e    \u003cp\u003eThe B173 500’s “Class A”, discrete circuitry combined with high-end components provide  a fresh approach to a classic sound that won’t disappoint. Thanks for your purchase and  continued support of Black Lion Audio!\u003c\/p\u003e          \u003ch3\u003eSpecifications:\u003c\/h3\u003e    \u003cul\u003e  \u003cli\u003eMax Microphone Input Level: +1 dBu\u003c\/li\u003e  \u003cli\u003eInput Impedance: 200Ω\u003c\/li\u003e  \u003cli\u003eGain: +12dB to +80dB\u003c\/li\u003e  \u003cli\u003eEquivalent Input Noise (noise floor): -103 dB\u003c\/li\u003e  \u003cli\u003eTHD+N Mic Section (@ +4dBu output): .072% @ +8 dBu Gain; .074% @ +29 dBu Gain; 082% @ +44 dBu Gain; .152% @ +60 dBu Gain; .709% @ +76 dBu Gain\u003c\/li\u003e  \u003cli\u003eBandwidth: (1 kHz, 150 Ω source, unweighted): 10 Hz to 30 kHz\u003c\/li\u003e  \u003cli\u003eTHD+N (@ +4dBu output) Hi-Z Section: .0045% @ +10 dBu; .0076% @ +15 dBu\u003c\/li\u003e  \u003cli\u003eMax Output Level: +29 dBu\u003c\/li\u003e  \u003cli\u003eOutput Impedance: 600Ω\u003c\/li\u003e  \u003cli\u003e+24 V provided by ultra low noise, custom power supply (500 series rack required)\u003c\/li\u003e  \u003cli\u003eProducts Dimensions: 1.5 x 6.5 x 5.25 in\u003c\/li\u003e  \u003cli\u003eProduct Weight: 1.2 lb\u003c\/li\u003e  \u003cli\u003eShipping Dimensions: 13 x 13 x 5 in\u003c\/li\u003e  \u003cli\u003eShipping Weight: 3 lb\u003c\/li\u003e  \u003c\/ul\u003e","brand":"Black Lion Audio","offers":[{"title":"Default Title","offer_id":44449982611559,"sku":"60416","price":399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/black-lion-audio-b173-500_60416_1_3b6961ff-aaf2-4cf2-93a8-bfe3145eb191.jpg?v=1787091196","url":"https:\/\/vintageking.mom\/products\/black-lion-audio-b173-500-preamp","provider":"Vintage King","version":"1.0","type":"link"}