Hazelrigg VDP - Dual-Channel Vacuum Tube Microphone Preamp & DI
The Hazelrigg VDP is a handcrafted, two-channel vacuum tube preamp and DI built on the legendary design philosophy of D.W. Fearn. Featuring an all-tube signal path with transformer-coupled inputs and outputs, it delivers rich harmonic depth, natural warmth, and musical saturation while offering cleaner headroom and lower noise than vintage predecessors. With +63 dB of gain, front-panel Mic/DI inputs, and precision controls, the VDP is the definitive input stage for ribbons, condensers, and high-SPL sources in the modern studio.
Pure Tube Signal Path
The VDP utilizes a fully tube-based design with carefully selected 6072A and 12AT7 tubes, delivering the signature D.W. Fearn character with enhanced clarity and headroom. Transformer-coupled I/O ensures isolated, rich signal integrity from input to output, while the refined power design provides stable, low-noise operation for pristine recordings.
Key Features of the Hazelrigg VDP
- Dual-channel all-tube preamp and DI
- Transformer-coupled input and output stages
- +63 dB of gain for ribbons, condensers, and high-SPL sources
- Front-panel Mic/DI inputs with rear XLR inputs
- High-pass filter and -20 dB pad per channel
- Locking +48V phantom power switch
- Polarity reverse switch for phase alignment
- Hand-built in the USA
Technical Specifications
- Gain: +63 dB (minimum)
- Frequency Response: ±0.6 dB (20 Hz to 20 kHz)
- THD: <0.5% (15 Hz to 15 kHz)
- Signal-to-Noise Ratio: 74 dB (minimum)
- Input Impedance: 150 ohms (optimized for 1.5 kΩ load)
- Tube Complement: (2) 6072A & (2) 12AT7 (low-noise selected)
- Output Type: Low-Z, transformer-balanced
- Power Supply: Fully regulated solid-state B+, filament, and +48V
Included Accessories
- Hazelrigg VDP Two-Channel Preamp
- Power Cable
- Manual & Warranty Information
