The PM 1A 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. Serious listening tests of the PM 1A have revealed a sound quality second to none, placing it among a handful of the worlds very best designs. The PM 1A 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!

Note: Due to the high quality of the TUBE-TECH RM Series power supply and the pristine audio circuits, the Modular Series products deliver exactly the same uncompromised sound quality as our 19" units.

The TUBE-TECH PM 1A is a combined Microphone Preamplifier and Direct Instrument amplifier.

The input provides a switchable +48 V phantom power, a select-able mic. impedance of 600/1200/2400 Ohm, a phase reverse switch, a 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.

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

Frequency response @ -3 dB: 5 Hz to 60 kHz

Typical noise: 5 dB @ 200

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 /1.2 k/2.4 k

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 M

MU-metal shielded input transformer

In- and output are transformer balanced and fully floating