Quad VCA - 4 Independent Analog VCAs In One Module for Eurorack

Hampshire Electronics Quad VCA 

The Hampshire Electronics Quad VCA is a 100% analogue, four-channel voltage-controlled amplifier designed for the Eurorack modular format.

Designed and hand-made in England.

Each of the four channels operates as a fully independent linear VCA, equipped with both a CV attenuator and an offset control.

The offset control applies a positive or negative bias to the CV input, allowing fine control over modulation depth and range.

For example, it’s ideal when modulating amplitude with a bipolar –5 V / +5 V LFO, but you want the resulting output signal to remain strictly 0 V to +5 V.

Quad VCA Manual: Download Quad VCA Manual PDF

⚙️ Key Features

• 16 HP wide Eurorack module with slim 20 mm depth
  
  
• Aluminium faceplate – light, strong, and built to last
  
  
• Four completely independent linear VCAs
  
  
• Each channel includes:
  
  
  • CV input with attenuation control
    
    
  • Offset control for CV biasing (positive or negative)
    
    
• Voltage ranges:
  
  
  • Signal inputs: –5 V to +5 V
    
    
  • CV inputs: –5 V to +5 V
    
    
• Linear response – perfect for modulation, mixing, and level control
  
  
• 100% analogue signal path for clean, natural dynamics
  
  
• Diode-protected power input for safety
  
  
• Power consumption: +12 V = 23 mA, –12 V = 23 mA

This versatile, precision-built Quad VCA is ideal for dynamic modulation, amplitude shaping, or general-purpose voltage-controlled mixing — a solid, reliable addition to any Eurorack system.