doepfer/a-130-2

A-130-2 Dual VCA

Doepfer

A slim dual VCA offering two identical voltage-controlled amplifier channels, each with manual initial gain, a CV attenuator, and a switchable linear/exponential response curve. DC-coupled throughout, making it suitable for both audio and control voltage processing.1014

Capabilities 2

Dual VCAdual-vca
Dual-channel VCA in 4 HP, identical per-channel operation with shared panel and independent response-curve switching.1014
Voltage-Controlled Amplifiervca
Two independent VCA channels, each switchable between linear and exponential response, with DC-coupled inputs and outputs.1014

Jacks 6 (4 in / 2 out)

NameSignalVoltageDescription
Inputs (4)
Ch1 CV Incv—Control voltage input for channel 1; at least +5 V is needed to achieve maximum gain (1) when the CV attenuator is fully clockwise and the Gain knob is fully counterclockwise.1014
Ch1 Inaudio-8V to 8VSignal input for channel 1; handles up to 16 Vpp (±8 V) without distortion. DC-coupled, suitable for both audio and control voltages.1014
Ch2 CV Incv—Control voltage input for channel 2; at least +5 V is needed to achieve maximum gain (1) when the CV attenuator is fully clockwise and the Gain knob is fully counterclockwise.1014
Ch2 Inaudio-8V to 8VSignal input for channel 2; handles up to 16 Vpp (±8 V) without distortion. DC-coupled, suitable for both audio and control voltages.1014
Outputs (2)
Ch1 Outaudio—Signal output for channel 1; DC-coupled, mirrors the processed input signal.1014
Ch2 Outaudio—Signal output for channel 2; DC-coupled, mirrors the processed input signal.1014

Parameters 6

NameTypeRangeBehavior
Ch1 CVknob—Attenuates the CV input signal for channel 1, controlling how much of the external control voltage influences the channel gain.1014
Ch1 Gainknob0 – 1Sets the initial (manual) gain for channel 1 from 0 to 1. Combined with the CV input, the total gain is capped at 1; increasing CV beyond what is needed does not push the gain above unity.1014
Ch1 Modeswitch—Three-position switch for channel 1 that selects linear response at one extreme, exponential response at the other, and mutes the channel in the centre position.1014
Ch2 CVknob—Attenuates the CV input signal for channel 2, controlling how much of the external control voltage influences the channel gain.1014
Ch2 Gainknob0 – 1Sets the initial (manual) gain for channel 2 from 0 to 1. Combined with the CV input, the total gain is capped at 1; increasing CV beyond what is needed does not push the gain above unity.1014
Ch2 Modeswitch—Three-position switch for channel 2 that selects linear response at one extreme, exponential response at the other, and mutes the channel in the centre position.1014

Firmware history 0 versions

No firmware history recorded.

References 1

  1. [1014]
    Doepfer A-130-2 Dual VCA product/manual pageproduct_page
    source 1014 canonical ↗ archived ↗
    ● verified 2026-05-28