acousticsounds.com からの DM ネタです。真空管式の Phono Pre-amp になります。
個人的には熱雑音の点から真空管式の Phono Pre-amp は好みではありません。
Rogue Audio's new Ares phono preamplifier is an all tube design that offers cutting edge performance for virtually any cartridge and turntable setup. The Ares is a four tube design that includes two 12AX7 and two 12AU7 tubes but can also be outfitted with four 12AX7's for additional gain. Features include Cinemag stepup transformers, three different gain settings to accommodate low, medium and high output cartridges, passive RIAA that is accurate to within 0.25dB and five different cartridge load settings all accessible without removing the cover. An outboard power supply helps to ensure ultra quiet operation and of course the Ares is built with the exceptional quality you expect
from a Rogue Audio product.