Purchased and put in my rack and then I took a long break from recording, so it has barely been used. From :

MP2A Description

The MP 2A is a combined mic preamp/DI, based on a classic TUBE-TECH design, but featuring even higher fidelity and a few new features: An impedance switch to match the input perfectly to all types of microphones, an overload indicator and 2 dB gain steps.

MP2A is the second in the new range of upgraded microphone preamplifier/DI’s.( The modular PM1A was the first.)
These new preamps features even higher headroom and fidelity than the earlier TUBE-TECH micpre”s.

Serious listening tests of the MP 2A have revealed a sound quality second to none, placing it among a handful of the worlds very best designs.

The MP 2A DI continues the TUBE-TECH tradition of extremely good sounding DI’s, delivering world class sound for bass and guitar DI recordings. You simply won’t find a better DI than this!

Features
=> The TUBE-TECH MP2A is a combined Microphone Preamplifier and Direct Instrument amplifier.
=> The input provides switchable +48 V phantom power, selectable mic. impedance of 600/1200/2400 Ohm, phase reverse switch, low-cut filter (20 Hz/40 Hz/off), as well as a switchable -20 dB pad.
=> Gain is adjustable from +10 dB to +70 dB.( 10db steps, coarse +2 dB steps, fine.)
=> The Direct Instrument Input are unbalanced with a gain ranging from + 10 dB to + 60 dB.
=> The amplifier is all tube. Input transformer is enclosed in a MU-metal can. Input and output transformers come with a static screen between the primary and secondary wirings.
=> The input and output are balanced as well as fully floating.
=> All-tube design featuring push-pull output amplifier

Technical
=> Frequency response @ -3 dB: 5 Hz to 60 kHz
=> Typical noise: 5 dB @ 200Ω
=> CMRR: > 60 dB @ 10 kHz
=> Gain: +10 dB to +70 dB in 2 dB steps – DI gain: 0-60 dB
=> Selectable mic input impedance: 600 Ω/1.2 kΩ/2.4 kΩ
=> Selectable pad in front of input transformer (-20 dB)
=> Selectable +48 V phantom power
=> Low cut filter (20 Hz/40 Hz/Off)
=> Phase reverse
=> Overload indicator
=> Gold plated switches
=> DI jack input for a variety of instruments
=> DI input impedance > 1 MΩ
=> MU-metal shielded input transformer
=> In- and outputs are transformer balanced and fully floating