Hazelrigg Industries VDP 2 Channel Preamp

VDP is a handcrafted, two-channel preamp and DI featuring an all-tube signal path and transformer-coupled input and output stage, adding natural harmonic depth and musicality. Drawing from the acclaimed preamp and power design of the D.W. Fearn VT series, VDP brings the character and richness of the classic, paired with cleaner output, lower noise, and modern high-end polish.

Definitive Input Stage
An intuitive front end with a world-class tube stage to enhance any source and to complement all microphones. With +6 dBs of gain more than the DWF VT-2, the VDP introduces a nuanced shine unique to the DWF Hazelrigg lineup.

• Clean gain for ribbons, articulate for condensers, and deep headroom for your loudest dynamics.
• Transformer-Coupled I/O | Rich musical saturation and isolated signal integrity from input to output.
• Front-Loaded Flexibility | Quick-access Mic/DI on the faceplate, with XLR inputs on the rear for permanent studio patching.
• Clean Capture | Built-in High Pass Filter and -20dB Pad for total gain-stage control
• Flight-Ready Phantom | Signature aircraft-inspired locking +48V safety switch
• Signal Command | Polarity reversal for high-SPL sources and multi-mic phase alignment.
• Handbuilt Heritage | Proudly manufactured in the USA

Audio Performance
• Gain: +63 dB (minimum)
• Frequency Response: ±0.6 dB (20 Hz to 20 kHz)
• Total Harmonic Distortion (THD): <0.5% (15 Hz to 15 kHz)
• Signal-to-Noise Ratio: 74 dB (minimum)
• Equivalent Input Noise (EIN): -78 dBm (maximum)

Connectivity & Impedance
• Input Impedance: 150 ohms (designed for a 1.5k-ohm load)
• Maximum Output Level: +22 dBm (unterminated)
• Output Type: Low-Z, transformer-balanced

Internal Components
• Vacuum Tube Complement: (2) 6072A and (2) 12AT7 (specially selected for low noise)
• Power Supply: Fully regulated solid-state B+, Filament, and +48V phantom power