Doepfer A-184-1 Ring Modulator / S&H / T&H / Slew Limiter

Ring mod, S&H, T&H and slew in 4HP

4 HP Eurorack module

The A-184-1 combines a ring modulator, a Sample & Hold / Track & Hold unit, and a slew limiter into a compact 4 HP module. It is designed for systems where dedicated modules for each function are unnecessary, offering classic analog signal mangling, stepped random voltage generation, and smooth glide in a single space-efficient package. Musically it excels at metallic timbres, random melodic sequences, and portamento-style transitions.

Features

• Ring modulator section identical to half of the A-114 module
• X and Y inputs with X*Y output for ring modulation
• Sample & Hold mode triggered on rising edge of trigger signal
• Track & Hold mode that follows input while trigger is high and holds when trigger goes low
• Internal jumper selects between S&H and T&H modes
• Slew limiter follows S&H/T&H section with manual Slew Time control
• Trigger input normalled to high so module works as slew limiter without any patch cables
• All three functions available simultaneously from one 4 HP module
• Combines functionality of A-114, A-148, and A-170 in a single small module

Controls & Jacks (9)

• Trig
• S/H
• SES
• Out— Output of S&H/T&H/Slew Limiter section
• In
• X In— Ring modulator X input
• Y In— Ring modulator Y input
• Out— Output of S&H/T&H/Slew Limiter section
• TH

How-To Guides

• Classic Random Melody Generator
• Smooth Random Filter Sweep
• Metallic Ring Modulation
• Ring Mod Vocal Texture
• Arpeggio Freeze with T&H
• Portamento / Glide
• Random Gate Sequencer
• Ring Mod with Slewed CV Modulator

Explore the interactive A-184-1 Ring Modulator / S&H / T&H / Slew Limiter panel on BleepDex — tap any control to learn what it does.