The WA273-EQ from Warm Audio is a top quality mic preamp that's part of their WA73 lineup, with a design based upon the legendary 1073 British preamp/EQ.The Venerable 1073 and Warm Audio's WA73 Family - Professional engineers can unanimously agree that if there's one preamp that has defined the sound of pop/rock records over the last half-century, it would most definitely be the venerable 1073. Used on a massive scale in recording and live sound applications for decades, it's still considered to be the best of the best of preamps even today. The "WA73 Family" from Warm Audio offers single- and dual-channel re-creations of this classic British preamp (both with & without EQ), that each pay careful and humble homage to the original circuit.When the decision was made by Warm Audio to release the WA273-EQ, it was imperative that the unit pay respectful homage to the legendary British console history both in design as well as performance. The tone and sweet sound characteristics of the vintage units are so unique and familiar that Warm's desire was to deliver purely and truly sonically-accurate replicas. Now, after years of R&D, careful reverse-engineering, and countless hours of auditioning, the result is the WA273-EQ.A 2-channel "boutique", "Desert Island" preamp, the WA273-EQ can also be safely categorized as a work-horse in both studio and live sound applications. And just as the classic 1073 was known for being a flexible tool capable of working with microphones of all types, from Condenser, to Dynamic, to Ribbon, the WA273-EQ shines equally when working with all types of microphones and sources as well, including; vocals, acoustic/electric guitars, bass, drums, percussion, keyboards, orchestras, and even as a tone-shaping tool to send partial or complete mixes through. In addition, with the WA273-EQ's 80dB of gain, along with fully-discrete Carnhill Transformer-balanced signal path, there simply is no recording, mixing, or engineering task that it's not capable of.Hand-Wired & Hand-Assembled - The the WA273-EQ is hand-wired, just like the classic 1073. Pros in the know claim that part of the 1073's classic tone can be attributed to its hand-wired build quality. To that end, the WA273-EQ is hand-wired and hand-assembled too; even the pcb components are all populated by hand.Warm Audio WA273-EQ Features:2-Channel, Class A, 1073-Style British Microphone Preamp with EQUK-made Carnhill TransformersUK-made Blore Edwards EQ dual-concentric switch potentiometers4-position inductor-based hipass filterHand-Wired, hand-assembledAvailable phantom power19" rack-mountableFully discreteWarm Audio WA273-EQ Specifications:80dB of gain – resistor-stepped gain switchTONE button – Changes input transformer impedance for varying tonePolarity switch48v phantom powerBoost/Cut controls:Low Band: 35, 60, 110, 220 HzMid Band: 360, 700, 1600, 3200, 4800, 7200 HzHigh Band: 10, 12, 16 kHzAdditional high band frequency EQ points added (compared to vintage 1073)4-position inductor-based hipass filter: 50/80/160/300 HzXLR mic inputs (front & back)Line-level TRS inputTS Send/Receive insert jacksXLR & TRS line-level outputsDirect In, instrument inputOutput level controlLED level indication2RU 19" rack-mountableFrequency response: 20Hz - 20kHz +/-.5 dBInternal IEC 115v/230v power inlet Warm Audio WA-273EQ WA273-EQ.