HAZELRIGG INDUSTRIES VLC Preamp/EQ/DI — Preamp / DI
HAZELRIGG INDUSTRIES VLC Preamp/EQ/DI — Preamp / DI
Hazelrigg Industries VLC Preamp/EQ/DI is an all-tube microphone preamp, DI and line-level EQ processor based on D.W. Fearn VT-series preamp and power-supply design.
Specifications
Format
| Product type | All-tube microphone preamp, DI and line-level EQ processor |
|---|---|
| Rack format | 2U 19-inch rackmount based on 3.5 in height |
| Origin | Handcrafted in the USA |
| Design basis | Uses D.W. Fearn VT-series preamp and power-supply design |
Signal Path and I/O
| Signal path | All-tube signal path |
|---|---|
| Transformers | Transformer-coupled input and output |
| Inputs | Front microphone/instrument input, rear redundant microphone input and rear balanced line input |
| Input selector | Front-panel selector for low cut, mic, line or instrument |
Controls and EQ
| Phantom power | Locking +48 V safety switch |
|---|---|
| Pad | -20 dB pad |
| Polarity | Polarity reversal switch |
| Eq | Passive 4-way LC equalizer with custom-wound inductor |
| Eq controls | Low Cut, Low Boost, High Cut and High Boost, each with two-way frequency selector; EQ bypass switch |
Performance
| Gain | Minimum 55 dB |
|---|---|
| Input impedance | 1.5 kOhm; input load impedance 150 ohms |
| Instrument input impedance | 1 MOhm |
| Thd noise | <0.32% from 20 cps to 20 kc |
| Snr | 72 dB |
| Max output level | +22 dBm unterminated |
| Power | 120 or 220 V AC; standard IEC connection |
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 VLC Preamp/EQ/DI is an all-tube microphone preamp, DI and line-level EQ processor based on D.W. Fearn VT-series preamp and power-supply design. The manufacturer lists an all-tube signal path, transformer-coupled input and output, front-panel microphone/instrument input, rear redundant microphone input, rear balanced line input selectable from the front panel, polarity reversal, EQ bypass, locking +48 V phantom power, -20 dB pad and a passive 4-way LC equalizer using a custom-wound inductor. The EQ provides low cut, low boost, high cut and high boost controls with two-way frequency selectors for each band. Perfect Circuit adds dimensions of 19 x 3.5 x 14 in / 482.6 x 133.4 x 228.6 mm, 12.5 lb / 5.66 kg weight, 1.5 kOhm input, 150 ohm input load impedance, 1 MOhm instrument input impedance, minimum 55 dB gain, THD+N below 0.32% from 20 cps to 20 kc, 72 dB SNR, +22 dBm unterminated maximum output and 120/220 V AC power. .