{"product_id":"pass-labs-hpa-1c-headphone-amplifier-preamplifier","title":"Pass Labs - HPA-1c - Headphone Amplifier \u0026 Preamplifier","description":"\u003cdiv style=\"font-size:14px;\"\u003e\n\n\u003cp\u003e\nThe HPA-1c builds on the success of the original HPA-1 with meaningful refinements aimed at delivering an even quieter and more revealing listening experience. Updated power supply components and improved grounding create a cleaner, more stable foundation that lowers noise and improves overall clarity.\n\u003c\/p\u003e\n\n\u003cp\u003e\nWith approximately 10 dB lower noise than its predecessor, the HPA-1c brings out greater low-level detail and a blacker background—especially noticeable with high-sensitivity headphones. Its fully discrete Class A design provides smooth, natural sound with excellent control across both dynamic and planar magnetic headphones.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBeyond headphone use, the HPA-1c also functions as a high-performance line-level preamplifier capable of anchoring a serious speaker system. Combining refinement, versatility, and the musical character Pass Labs is known for, the HPA-1c is designed for listeners who want reference-level performance in a compact form factor.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eAvailable in Silver or Black finishes.\u003c\/strong\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong style=\"color:#f39c12;\"\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul style=\"margin-top:0px;\"\u003e\n\u003cli\u003eFully Discrete Class A Design\u003c\/li\u003e\n\u003cli\u003eUpgraded Low Noise Power Supply\u003c\/li\u003e\n\u003cli\u003eImproved Grounding Architecture\u003c\/li\u003e\n\u003cli\u003eApprox. 10 dB Lower Noise Performance\u003c\/li\u003e\n\u003cli\u003eDrives Dynamic and Planar Magnetic Headphones\u003c\/li\u003e\n\u003cli\u003eFunctions as a Line-Level Preamplifier\u003c\/li\u003e\n\u003cli\u003eDesigned and Manufactured in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong style=\"color:#f39c12;\"\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eGain: 8 dB\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 10 Hz – 100 kHz (-1 dB)\u003c\/li\u003e\n\u003cli\u003eOutput Power into 20 Ohms: 3500 mW\u003c\/li\u003e\n\u003cli\u003eOutput Power into 300 Ohms: 200 mW\u003c\/li\u003e\n\u003cli\u003eTHD + Noise: \u0026lt; 0.005 at 1V Output\u003c\/li\u003e\n\u003cli\u003eInput Impedance: 50K Ohm\u003c\/li\u003e\n\u003cli\u003eOutput Impedance: \u0026lt; 2 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 23 Watts\u003c\/li\u003e\n\u003cli\u003eDimensions: 11”W x 13.5”D x 4”H\u003c\/li\u003e\n\u003cli\u003eWeight: 14 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Pass Labs","offers":[{"title":"Silver","offer_id":51608625021216,"sku":null,"price":4045.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":51608625053984,"sku":null,"price":4545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/3728\/1568\/files\/gallery-product-HPA1c-01.jpg?v=1778702421","url":"https:\/\/salon1audio.com\/products\/pass-labs-hpa-1c-headphone-amplifier-preamplifier","provider":"Salon 1 Audio","version":"1.0","type":"link"}