Hazelrigg Industries VDI

Hazelrigg Industries VDI is a high-quality, single-channel tube direct box based on the legendary D.W. Fearn VT-1/F design. This device is housed in a durable, low-profile steel chassis, making it easy to carry — it fits into a backpack or gear bag. Designed for both studio and stage use, the Hazelrigg Industries VDI guarantees exceptional sound quality and is an ideal choice for acoustic instruments, guitars, basses, synthesizers, and other audio sources.

Hazelrigg Industries VDI is part of the Solution Series, offering a simple yet reliable vacuum tube construction that delivers warm, harmonically rich sound. The unit is equipped with a 1/4" input and output, an XLR output at microphone level, and a ground lift switch. The Hazelrigg Industries VDI provides precise impedance matching for optimal signal quality and dependable performance, even with intensive use on tour.

Key Features

• Single-channel tube direct box providing warm, rich tube sound
• 1/4-inch thick steel panel housing, rugged and built for heavy use
• Locking 1/4" input and balanced XLR output with custom Jensen transformer
• Thru jack for simultaneous connection to an amplifier
• Ground lift switch to eliminate potential ground loop issues
• Voltage switchable (115V/230V) with IEC socket on the rear panel
• Handcrafted in the USA with high-quality components for reliability and long-term use

Specifications

• Type: Active, single-channel DI
• Circuitry: Tube-based, designed by D.W. Fearn
• Input: 1 x 1/4" (front), 1 x Thru (pass-through)
• Output: 1 x XLR (balanced, Jensen Transformer), 150-ohm at a nominal -30 dBV level
• Input Impedance: 1 MOhm
• Frequency Response: 10 Hz–20 kHz, ±0.2 dB
• THD + Noise: <0.3% (20 Hz–20 kHz)
• Dimensions: 6.25 x 2.25 x 9.5 inches (W x H x D)
• Power: Internal, IEC socket on the rear panel, voltage selector 115V/230V
• Warranty: Limited, 7 years (90 days for tubes)