Product Overview

The NU 67 V (008679) is a classical power supply unit that serves as the heart of the U 67 recording chain. It contains a high-quality mains transformer designed to provide the stable heater and plate voltages required for the vacuum tube. To protect your investment, the unit features intelligent current limiting and an automatic voltage switching system, making it a truly global tool for elite audio recording.

Product Description

Intelligent Global Power:

The NU 67 V is built for the international stage. It features an automatic switching system that detects and adapts to both 100-120 V and 220-240 V AC mains voltage ranges. For maximum convenience, the unit connects via a standard IEC 320 C14 socket and comes enclosed with three separate mains power cables (EU, UK, and US sockets), ensuring you are ready to record in any territory.

Soft-Start Tube Protection:

Vacuum tubes are most vulnerable during the initial heating phase. The NU 67 V works with integrated current limiting, which effects a "soft start" for the tube. This gradual ramp-up prevents thermal shock to the filament, significantly extending the lifespan of your microphone's internal tube and maintaining consistent tonal performance over years of use.

Pristine Signal Path & Connectivity:

Audio integrity is maintained through a transformer-balanced modulation output. The microphone connects to the PSU via a dedicated UC 5 cable, and the resulting signal is fed to a professional XLR 3 M connector. This setup is designed to handle long-distance cable runs with ease:

• Microphone to PSU: Supports UC 5 cable lengths up to 50 meters.

• PSU to Console: Supports modulation cable lengths up to approximately 300 meters in total.

Rugged Studio Construction:

With a weight of approximately 2 kg, the NU 67 V feels as substantial as the sound it helps produce. Its compact footprint (120 x 100 x 220 mm) allows it to fit easily into gear racks or on studio floors, while the durable metal housing and top-mounted handle make it portable for high-end location tracking.

Key Features

• Universal U 67 Support: Powers all vintage and modern U 67 tube microphones.

• Auto-Voltage Switching: Seamlessly handles 100-120 V and 220-240 V ranges.

• Soft-Start Circuitry: Current limiting protects the tube and extends its life.

• Transformer Balanced Output: Delivers a clean, professional XLR 3 M signal.

• Extensive Cable Support: Works with up to 50m mic cables and 300m audio lines.

• Complete Kit: Includes three mains cables for EU, UK, and US sockets.

Technical Data