Mama Mia! Legendary ARP 2601 Analog Synthesizer with 3620 Controller. In great working order, this has new keys (reverse colour) and replaced sliders. $13,999! Please note that this is available by appointment.

The ARP 2601, often referred to as the ARP 2600, is a semi-modular analog synthesizer that has become a legendary instrument in the world of electronic music. The “Black and Orange” face version is one of the most iconic models, known for its distinctive appearance and rich, versatile sound. Produced in the late 1970s by ARP Instruments, the 2600 is renowned for its robust build, powerful oscillators, and extensive modulation capabilities.

Key Features:

Semi-Modular Design:

  • Patchable Architecture: The ARP 2601 features a semi-modular design, allowing users to connect various sections of the synthesizer using patch cables. This provides flexibility and encourages experimentation while maintaining an easy-to-use interface.
  • Internal Pre-Patching: While it offers modular flexibility, many of the commonly used signal paths are internally pre-patched, enabling quick setup and immediate playability without needing patch cables.


  • Three VCOs: The 2601 is equipped with three voltage-controlled oscillators (VCOs), each capable of producing multiple waveforms (sine, triangle, sawtooth, square/pulse). These oscillators can be used for rich, complex sounds or precise tonal control.
  • Frequency Modulation: VCOs can modulate each other, allowing for FM synthesis and creating complex harmonic textures.

Filters and Amplifiers:

  • 24dB/Octave Low-Pass Filter: Features a resonant low-pass filter, providing smooth, musical filtering with the ability to self-oscillate.
  • Voltage-Controlled Amplifier (VCA): The VCA offers precise control over the amplitude of the signal, modulated by the envelope generators.

Envelope Generators and LFO:

  • ADSR Envelope Generator: Provides attack, decay, sustain, and release parameters for shaping the amplitude of the sound.
  • AR Envelope Generator: Offers a simpler attack-release envelope, useful for percussive and transient sounds.
  • Low-Frequency Oscillator (LFO): The LFO can be routed to various parameters, adding modulation effects such as vibrato, tremolo, and more.

Additional Features:

  • Spring Reverb: Includes a built-in spring reverb for adding depth and ambiance to the sound.
  • External Signal Processing: Can process external audio signals, applying the ARP 2600’s filters, envelopes, and effects to other instruments or sounds.

Sound Characteristics:

  • Rich Analog Tone: The ARP 2601 is celebrated for its warm, rich, and powerful analog sound, capable of producing everything from deep basses to soaring leads and complex soundscapes.
  • Versatile Modulation: Extensive modulation options allow for highly dynamic and evolving sounds, suitable for a wide range of musical styles.


  • Sound Design: Ideal for sound designers looking to create unique and complex sounds for music, film, and media.
  • Music Production: Widely used in electronic music production, offering classic analog sounds that can enhance any track.
  • Live Performance: Suitable for live performances, providing a visually striking and sonically powerful instrument.


  • Oscillators: 3 x VCOs with multiple waveforms
  • Filters: 24dB/octave low-pass filter
  • Amplifiers: VCA with ADSR and AR envelope generators
  • Modulation: LFO, FM synthesis capabilities
  • Effects: Built-in spring reverb
  • Inputs/Outputs: Various CV and audio inputs/outputs for patching and external signal processing

Country of Manufacture:

  • USA: The ARP 2601 was manufactured in the United States, reflecting ARP Instruments’ high standards of quality and innovation.

Notable Features:

  • Semi-modular design with internal pre-patching
  • Three versatile VCOs with multiple waveforms
  • Resonant low-pass filter with self-oscillation
  • ADSR and AR envelope generators
  • Built-in spring reverb for added depth
  • External signal processing capabilities

Notable Users:

The ARP 2600 has been used by a wide range of renowned musicians and sound designers, including:

  • Edgar Winter: Used the ARP 2600 for the famous synthesizer solo in “Frankenstein.”
  • Herbie Hancock: Utilized the ARP 2600 in his pioneering electronic jazz recordings.
  • Pete Townshend (The Who): Known for using the ARP 2600 on tracks like “Baba O’Riley.”
  • Jean-Michel Jarre: Employed the ARP 2600 in his iconic electronic music productions.

The ARP 2601 “Black and Orange” face synthesizer is a legendary instrument that offers a powerful and versatile analog sound with a semi-modular design. Its rich oscillators, resonant filters, and extensive modulation capabilities make it a favorite among musicians, sound designers, and producers. Whether used in the studio or on stage, the ARP 2600 delivers classic analog tones and a flexible, hands-on interface that continues to inspire creativity in electronic music.

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