{"product_id":"benchmark-media-hpa4-headphone-amplifier-7","title":"Benchmark Media HPA4 Headphone Amplifier","description":"The Benchmark Media HPA4 is a solid-state headphone amplifier and line preamplifier delivering 6 watts into 16 ohms with a maximum output current of 1.5 amperes. It serves as a reference-grade command center engineered to drive demanding headphones and power amplifiers with ultra-linear purity. Built around flagship THX AAA-888 feed-forward technology, this high-voltage design utilizes an ultra-wide frequency bandwidth spanning from 0.1 Hz to 500 kHz. Independent 256-step relay attenuators provide perfect channel matching for headphone and line outputs, while balanced XLR and single-ended RCA connections are managed via a color touchscreen interface.\n\nCritical acclaim highlights the unit for its vanishingly low noise floor, staggering dynamic range, and flawless tonal neutrality. Outlets like Stereophile consistently award it Recommended Component status, while Audio Science Review praised its absolute measurement transparency. Reviewers from Hi-Fi+ and Secrets of Home Theater and High Fidelity applaud its ability to present intricate musical layers with effortless speed and zero coloration.\n\nIntegrating this caliber of preamplification into your setup removes every electronic barrier between your source and your ears. By maintaining uncompromising signal integrity across line and headphone paths, it allows your reference gear to perform at its peak. For the discerning audiophile who demands unvarnished truth in playback, it offers the ultimate foundation for revealing sound.","brand":"Benchmark Media","offers":[{"title":"Default Title","offer_id":67738822902041,"sku":"101471","price":2549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/101471-3.jpg?v=1791590413","url":"https:\/\/tmraudio.com\/products\/benchmark-media-hpa4-headphone-amplifier-7","provider":"The Music Room","version":"1.0","type":"link"}