Hazelrigg Industries DLC 500 EQ
MPN #DLC
500 Series tube EQ, 6072a input, hand-wound inductor, transformer I/O, solid-state output, 4-band control, D.W. Fearn design, bypass switch
Introducing the Hazelrigg Industries D Series, a refined collection of 500 Series modules that brings the unmistakable tone, warmth, and musical finesse of Hazelrigg and D.W. Fearn designs into a compact, studio-friendly format. The series includes the DVA Vacuum Tube Microphone Preamplifier/DI, the DLC Vacuum Tube Inductor Equalizer, and the DNE Pulse Width Modulation Compressor-each handcrafted with transformer-balanced signal paths and vacuum tube or high-headroom solid-state amplification for uncompromising audio integrity. Designed for professionals seeking world-class analog tone in a portable and cost-effective package, these modules deliver the clarity, control, and color expected of Hazelrigg gear.
The DVA offers up to 60 dB of gain with a hybrid tube/solid-state design, while the DLC provides smooth, musical EQ with hand-wound inductors and D.W. Fearn's proven tonal philosophy. The DNE brings PWM compression from the revered VT-7 into the 500 Series, offering intuitive controls, LED metering, and stereo linking. Each unit features thoughtful additions like high-pass filters, polarity reversal, and pad switches. Built for serious engineers, the D Series modules combine classic sonics with modern convenience in every detail.
Features
Classic Passive EQ Tone: Based on the filter circuit from the D.W. Fearn VT-5 and Hazelrigg VLC for rich, musical shaping.Hand-Wound Inductor: Delivers smooth, vintage-style equalization with detailed character.Vacuum Tube Input Stage: Features a 6072a tube for warm, harmonically rich sound.Transformer-Balanced I/O: Uses premium transformers on both input and output for analog depth and clarity.Flexible Frequency Controls: Independent knobs and frequency selectors for high cut, high boost, low boost, and low cut.Bypass Switch: Allows for instant A/B comparison or full bypass when needed.Front Panel Instrument Input: Convenient access for direct signal connection.Designed by D.W. Fearn: Engineered with high-end analog signal paths and sonic integrity.Built for the 500 Series Format: Fits any standard 500 series rack for portable, modular integration.
Specifications
General Overview
Product Type: 500 Series equalizer moduleDesign Origin: Based on the passive EQ circuit in the Hazelrigg VLC and D.W. Fearn VT-5Application: High-fidelity tone shaping for tracking and mixing
Signal Path and Components
Input Stage: Vacuum tube (6072a) based on VT-2Output Stage: Solid state, high gain, low total harmonic distortionTransformers: Installed on both input and output stagesInductors: Hand-wound, identical to those used in the VLC
Equalization Controls
High Cut controlHigh Boost controlLow Boost controlLow Cut controlHigh Cut frequency selectorHigh Boost frequency selectorLow Boost frequency selectorLow Cut frequency selectorBypass switch
Connectivity and Interface
Front panel microphone or instrument input
Construction and Build
Format: 500 Series moduleBuild Quality: Handcrafted, premium-grade componentsDesign By: D.W. Fearn
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