{"product_id":"oad-up1-reference-dual-chassis-mm-mc-phono-preamplifier","title":"OAD UP1 Reference Dual-Chassis MM\/MC Phono Preamplifier","description":"OAD UP1 Reference MM \/ MC Phono Preamplifier specifications feature an ultra-wide selectable gain range from 40 dB to 80 dB in 5 dB increments, eight selectable input impedance steps from 22 ohms to 47 kilohms, adjustable capacitance loading, single-ended RCA inputs, and both unbalanced RCA and balanced XLR outputs, accurate to within ±0.1 dB RIAA equalization. Built around a dual-mono architecture inside a CNC-milled solid aluminum chassis, this Australian-designed unit utilizes high-performance solid polymer capacitors and high-current line drivers capable of driving demanding downstream loads or long cables. A fully isolated external power supply keeps power line noise completely separated from the sensitive audio path, accommodating high and low output moving coil, moving magnet, and moving iron cartridges with ease.   \n\nCritical reviews and expert listening tests praise the preamplifier for its whisper-quiet background, deep dynamic punch, and wide, dimensional soundstage. Listeners consistently highlight its ability to extract subtle low-level detail and micro-dynamics without adding hiss or hum, even with extremely low-output cartridges. Reviewers further applaud its balance of clinical transparency and natural analog warmth, noting that the external DIP switches make tailoring the load to any specific cartridge effortless.   \n\nInvesting in this reference phono preamplifier ensures you extract every micro-detail and dynamic nuance from your vinyl collection without ever needing step-up transformers. Its immense gain flexibility, reference-grade build quality, and true-to-life tonal accuracy make it an indispensable centerpiece for any audiophile seeking an end-game analog playback experience.   ","brand":"OAD","offers":[{"title":"Default Title","offer_id":67615590875417,"sku":"100570","price":3799.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/100570-9.jpg?v=1790873775","url":"https:\/\/tmraudio.com\/products\/oad-up1-reference-dual-chassis-mm-mc-phono-preamplifier","provider":"The Music Room","version":"1.0","type":"link"}