Doepfer A-103 18dB Low Pass Filter The Doepfer A-103 is a 3-pole (18dB/octave) analog low-pass filter based on the iconic TB-303 circuit. This filter delivers the unmistakable acid squelch and aggressive resonance that defined early techno and acid house. It brings a sharp, liquid tone with a unique slope and self-oscillating capabilities. The A-103 includes CV control for cutoff frequency, making it easy to modulate in real time. It's a great addition for anyone chasing classic Roland-inspired filter behavior in a modern modular system. Key Features: Based on the Roland TB-303 filter design 18dB/octave low-pass (3-pole) response Classic acid-style resonance Self-oscillating capabilities CV input for cutoff frequency control Great for acid, techno, and classic electronic tones
