Hazelrigg Industries DVP – 2-Channel Tube Microphone Preamp/DI

OVERVIEW

The Hazelrigg Industries VDP continues the celebrated design philosophy of D.W. Fearn, delivering classic tube warmth with modern precision and reliability. Handcrafted in the USA, this two-channel preamp and DI features a fully tube-driven signal path and transformer-coupled input and output stages, creating a sound defined by harmonic richness, musical depth, and exceptional detail. Inspired by the acclaimed D.W. Fearn VT series, the VDP introduces cleaner output, lower noise, and enhanced clarity while preserving the unmistakable analogue character engineers and producers demand.

Designed for versatility across a wide range of recording applications, the VDP offers generous gain with an additional +6 dB over the classic VT-2 design. Ribbon microphones benefit from clean, quiet amplification, condensers retain articulation and detail, and dynamic microphones maintain exceptional headroom even on high-SPL sources. Front-panel microphone and DI inputs provide immediate accessibility, while rear-panel XLR connections support permanent studio integration and streamlined workflows.

With practical studio features including a high-pass filter, polarity reversal, -20 dB pad, and Hazelrigg’s signature aircraft-inspired locking +48V phantom power switch, the VDP combines vintage-inspired sonics with modern recording flexibility. Every unit is meticulously hand-built in the USA, ensuring uncompromising audio performance, premium construction quality, and long-term reliability for professional studios.

KEY HIGHLIGHTS

All-Tube Signal Path

A fully tube-driven design delivers rich harmonic character, depth, and musical saturation with exceptional analogue warmth.

Transformer-Coupled Input & Output

Premium transformer-coupled stages provide enhanced signal integrity, smooth saturation, and classic studio tone.

Inspired by the Legendary D.W. Fearn VT Series

Built on the renowned D.W. Fearn preamp architecture, the VDP combines vintage character with modern refinement and lower noise performance.

High-Gain, High-Headroom Design

Offering +63 dB of gain, the VDP handles ribbon, condenser, and dynamic microphones with clarity, punch, and impressive headroom.

Front-Panel DI & Microphone Access

Convenient front-panel inputs allow fast connection of microphones and instruments while rear-panel XLR inputs support permanent studio patching.

Studio-Ready Control Features

Integrated high-pass filter, polarity reversal, -20 dB pad, and locking phantom power switch provide flexible control across recording applications.

Handcrafted in the USA

Each VDP is meticulously hand-built in the USA to ensure premium reliability, build quality, and long-term professional performance.

FEATURES

• All-tube microphone preamp
• All-tube DI interface
• Fully tube-driven signal path
• Transformer-coupled input and output stages
• Front-panel microphone and instrument input
• Rear-panel XLR microphone input for permanent patching
• Automatic DI sensing
• Built-in high-pass filter
• -20 dB pad switch
• Polarity reversal switch
• Aircraft-inspired locking +48V phantom power switch
• High-gain design with +63 dB minimum gain
• Amplifier designed by D.W. Fearn
• Handcrafted in the USA
• 7-year warranty (90 days for tubes)

TECHNICAL SPECS

General

Product Type: 2-channel tube microphone preamp and DI

Signal Path: All-tube

Design: Transformer-coupled input and output

Manufacturing: Hand-built in the USA

Audio Performance

Gain: +63 dB minimum

Frequency Response: ±0.6 dB (20 Hz – 20 kHz)

Total Harmonic Distortion (THD): <0.5% (15 Hz – 15 kHz)

Signal-to-Noise Ratio: 74 dB minimum

Equivalent Input Noise (EIN): -78 dBm maximum

Connectivity & Impedance

Front Input: Microphone / Instrument input

Rear Input: Redundant XLR microphone input

Input Impedance: 150 ohms (designed for 1.5k-ohm load)

Maximum Output Level: +22 dBm (unterminated)

Output Type: Low-Z transformer-balanced

Controls & Switching

Automatic DI sensing

Aircraft-inspired locking +48V phantom power switch

-20 dB pad switch

Polarity reversal switch

High-pass filter

Internal Components

Vacuum Tubes:

• (2) 6072A
• (2) 12AT7
• Specially selected for low-noise operation

Power Supply:

• Fully regulated solid-state B+
• Filament supply
• +48V phantom power supply

Warranty

Unit Warranty: 7 years

Tube Warranty: 90 days

DOWNLOADS

• User Manual