HAZELRIGG INDUSTRIES VDP — Microphone
HAZELRIGG INDUSTRIES VDP — Microphone
Hazelrigg Industries VDP is a two-channel all-tube microphone preamp and DI built in the USA.
Specifications
Format
| Product type | Two-channel all-tube microphone preamp and DI |
|---|---|
| Origin | Handcrafted in the USA |
| Rack format | 2U 19-inch rackmount |
Circuit
| Signal path | All-tube signal path |
|---|---|
| Transformers | Transformer-coupled input and output |
| Design basis | Based on D.W. Fearn VT-series preamp and power-supply design |
| Tube complement | Two 6072A and two 12AT7 tubes listed by retailer/editorial sources |
Controls and I/O
| Inputs | Front-panel microphone/instrument input plus redundant rear microphone input |
|---|---|
| Di sensing | Automatic DI sensing |
| Phantom power | Aircraft-inspired locking +48 V phantom-power switch |
| Pad | -20 dB pad switch |
| Polarity | Polarity reversal switch |
Performance
| Gain | +63 dB gain listed by retailer/editorial sources |
|---|---|
| Frequency response | +/-0.6 dB from 20 Hz to 20 kHz |
| Thd | <0.5% from 15 Hz to 15 kHz |
| Input impedance | 150 ohms, optimized for 1.5 kOhm load |
| Output type | Low-Z transformer-balanced output |
Fit and constraints
Intended use
Constraints
To use it
Questions
Which connections, drivers, operating systems, and sample rates are supported by this exact revision?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
What cables, mounts, power supplies, or licenses are included?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Is the current retailer listing new stock, demo stock, open box, or special order?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
Hazelrigg Industries VDP is a two-channel all-tube microphone preamp and DI built in the USA. The manufacturer states that it uses an all-tube signal path with transformer-coupled input and output stages, front-panel microphone/instrument inputs, redundant rear microphone inputs, automatic DI sensing, locking +48 V phantom-power switches, -20 dB pad switches and polarity reversal. Hazelrigg describes the amplifier as derived from D.W. Fearn VT-series preamp and power-supply design. Retailer and editorial sources add published performance details including up to +63 dB gain, +/-0.6 dB response from 20 Hz to 20 kHz, THD below 0.5% from 15 Hz to 15 kHz, 150 ohm input impedance, low-Z transformer-balanced output, a 2U 19-inch chassis and a tube complement of two 6072A and two 12AT7 tubes. Accessible sources did not expose a GTIN or manufacturer MPN beyond the VDP model name.