Although the CMC 5 Ug has a more modern successor (the CMC 6 Ug), some people place a special value on its discrete circuitry, or seek an exact match for an existing microphone amplifier of this same type. But it is well worthy of a place in our sales room; it offers balanced, transformerless, direct-coupled Class A amplification with low impedance, low distortion, and high freedom from interference.
This amplification is necessary because the capsules of condenser microphones cannot be connected directly to microphone cables or inputs - an electrostatic charge is required by the capsule to produce a signal and this signal then needs to be amplified. That's what the CMC 5U does - and to avoid interference to the signal on the way from the microphone to the input of the mixer or preamp, the signal is conveyed at low impedance and in balanced form.
The CMC 5 Ug is designed exclusively for 48-Volt phantom powering.