{"title":"Hagerman Audio Labs","description":null,"products":[{"product_id":"hagerman-audio-lab-trumpet-mc-tube-phono-preamplifier-mc-mm-phono","title":"Hagerman Audio Lab Trumpet MC Tube Phono Preamplifier; MC\/MM Phono","description":null,"brand":"Hagerman Audio Lab","offers":[{"title":"Default Title","offer_id":51984443277593,"sku":"90371","price":899.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/90371-3.jpg?v=1771015739"},{"product_id":"hagerman-audio-lab-cornet-mm-phono-preamplifier","title":"Hagerman Audio Lab Cornet MM Phono Preamplifier","description":null,"brand":"Hagerman Audio Lab","offers":[{"title":"Default Title","offer_id":52188260696345,"sku":"92525","price":499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/92525-6.jpg?v=1775145104"},{"product_id":"hagerman-audio-lab-tuba-headphone-amplifier","title":"Hagerman Audio Lab Tuba Headphone Amplifier","description":null,"brand":"Hagerman Audio Labs","offers":[{"title":"Default Title","offer_id":52749288145177,"sku":"96279","price":419.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/96279-3.jpg?v=1783476520"},{"product_id":"hagerman-audio-lab-trumpet-mc-phono-preamplifier-wood-panel-upgrade","title":"Hagerman Audio Lab Trumpet MC Phono Preamplifier; Wood Panel Upgrade","description":null,"brand":"Hagerman Audio Lab","offers":[{"title":"Default Title","offer_id":52866179006745,"sku":"96276","price":899.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/96276-3.jpg?v=1784660619"},{"product_id":"hagerman-audio-lab-tuba-tube-headphone-amplifier","title":"Hagerman Audio Lab Tuba Tube Headphone Amplifier","description":"The Hagerman Audio Labs Tuba headphone amplifier delivers an output wattage of 350mW at 32 ohms with a 1.35A current supply requirement. This vacuum tube unit utilizes a single-ended, zero-feedback, parafeed EL84 triode design into an impedance-matching transformer. Engineered to power both low and high-impedance headphones, it provides dual 6.3mm front outputs. An internal power supply activates high voltage after a 30-second warm-up delay. The industrial chassis is built exceptionally tough, featuring a volume knob that doubles as the push power switch.  \n\nReviewers praise the Tuba for its warm, organic, and non-fatiguing sound, noted for an exceptionally quiet background and an airy soundstage. It is celebrated for tight bass and natural treble, proving highly versatile across headphones from Grado, Sennheiser, and ZMF. Experts highlight that it punches far above its weight class, delivering the liquidity of high-end reference gear while offering a robust, tank-like build and reliable, glitch-free performance.  \n\nFinding genuine analogue magic that handles a diverse headphone collection is rare, but this amplifier effortlessly delivers clean headroom and vivid textures. Its ability to extract the emotional depth of any recording makes it an essential upgrade for an enthusiast wanting to maximize their gear. Adding this masterfully engineered, tube-driven powerhouse to your desktop ensures a lifelike, deeply engaging listening experience that transforms everyday audio into an extraordinary journey.","brand":"Hagerman Audio Lab","offers":[{"title":"Default Title","offer_id":67686529466649,"sku":"98368","price":419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/98368-7.jpg?v=1791422818"}],"url":"https:\/\/tmraudio.com\/collections\/hagerman-audio-labs.oembed","provider":"The Music Room","version":"1.0","type":"link"}