The Chandler Limited TG2 is a recreation of the rare EMI TG12428 pre amp used in EMI/Abbey Road recording and mastering consoles used in the late 60's and early 70's. The sound was used on many famous recordings done at Abbey Road including The Beatles "Abbey Road" and Pink Floyd "Dark Side of the Moon." The amplifiers were also used in many EMI circuits of the time. Our version was remade from original design notes and circuit board drawings, provided by Abbey Road and EMI to ensure extreme authenticty!This pre features the same discrete transformer balanced amplifiers as the TG series limiter and offers a creamy, smooth tone with a surprisingly open, clear top end (dare we say nicer than Neve....) The sound, as explained by many users, has the Neve "warmth" and punch, but with a "nicer" expanded top end. In fact the unit does have a small rise in its top end frequency response and some warmth inducing distortion which contribute to its sound.Options: Stepped Output (Stereo)*Please note: Not all of the early Abbey Road TG-2 units have the "impedence" as a standard feature of the unit. If buying a used unit, please inquire as to whether the unit is equipped with the impedence before purchasing.