Doepfer A-145-4 Quad LFO Slim Line (Used)

Quad Low Frequency Oscillator

• Eurorack module with 4 independent LFOs
• Used product in excellent condition
• Compact Slim Line format (4HP)
• Triangular and square waveforms for each LFO
• Two-color LEDs to display modulation status
• Frequency range selectable by jumper
• Ideal for multiple and complex modulations
• Perfect for compact modular systems

Used Doepfer A-145-4 Quad LFO Slim Line Eurorack

The Doepfer A-145-4 Quad LFO Slim Line (Used) is an essential used module for any Eurorack system, designed to provide four independent modulation sources in an extremely compact space. Despite its simplicity, it is an essential tool for adding movement, dynamics and depth to modular patches.

Four LFOs for advanced modulations

Module used to control multiple modulations

Each LFO in the Doepfer A-145-4 generates triangular and square waveforms with a range of about ±5V, perfect for modulating filters, VCAs, oscillators and other parameters. The presence of four independent units makes it possible to create complex, layered modulations within the system.

Immediate visual feedback

Integrated two-color LEDs for each LFO make it easy to monitor voltage trends: red for positive phase and yellow for negative phase, making the module intuitive even during live performances.

Flexibility for use in Eurorack systems

Selectable frequency range

Thanks to internal jumpers, different frequency ranges can be selected for each LFO, ranging from fast modulations (down to about 50 Hz) to extremely slow cycles (up to several minutes). This versatility makes the module suitable for both rhythmic patterns and slow, ambient sound evolutions.

Technical Specifications.

• Number of LFOs: 4 independent
• Waveforms: triangular and square
• Output: ±5V
• Visual indication: two-color LED for each LFO
• Frequency range: ~50 Hz to ~0.004 Hz (selectable via jumper)
• Width: 4 HP (20 mm)
• Depth: 30 mm
• Power consumption: +30 mA / -30 mA
• Format: Eurorack Slim Line
• Product used