The Doepfer A-103 is a compact 8HP module for Eurorack synthesizers that recreates the classic 303-style low pass filter. With its transistor-ladder-style design, it offers the signature sound of Acid House, with its smooth frequency cut-off, subtle crunch, and harmonics.
Ideal for Acid House
The A-103 is the perfect tool for producing the sound of Acid House, with its smooth and seamless frequency cut-off that rounds out the low-end of the signal to maintain the signature punch, even under high resonance. With three CV inputs, including 1V/Oct standard on CV1, you can even use the A-103 as its own dedicated sine wave generator by driving the resonance to its maximum self-oscillation.
Transform your Sound
A low-pass filter is a crucial component of Eurorack synth design, and the A-103 offers a wide frequency sweep and complete control over your filtering. With its sweepable resonance dial, you can drive your signal into self-oscillation to add texture and grit to your tone. Whether you want to beef up kick drums, tame harsh leads, or create euphoric build-ups, the A-103 is a versatile tool for shaping your sound.
Smooth and Seamless
The frequency cut-off of the A-103 is smooth and seamless, with no jumps between values and no dead spots. By boosting the resonance, you’ll add harmonics that give your sound the definitive cut to be heard above a dense mix of instruments.
- Width: 8HP
- Depth: 55 mm
- Current: +30mA (+12V), -10mA (-12V)
- Product code: A-103
In conclusion, the Doepfer A-103 18dB Low Pass Filter is a compact and powerful tool for recreating the classic sound of Acid House, and a versatile tool for transforming your sound in Eurorack synthesizers.