ARP Axxe Mk II Analog Synthesizer Keyboard Fully Serviced w/ LED Sliders & Anvil Case

Description

This vintage ARP Axxe Mk II has just been fully serviced & overhauled by Synthchaser – recapped, new key bushings, new LED sliders (I can disable the illumination at buyer’s request prior to shipping), clean, fully functional, calibrated, in tune and sounding great.  Includes an Anvil case in good condition!  This powerful 37 key monosynth is great for leads and effects.

The one oscillator’s saw and pulse outputs can be mixed with the white noise source.  The oscillator may be modulated by LFO (square and/or sine), random sample & hold, and ADSR.  Pulse width adjustable from 5% to 50% and may be modulated by LFO and ADSR.  4 pole voltage controlled filter with self-oscillating capabilities.  Filter may be modulated by keyboard control voltage, random sample & hold, LFO and ADSR.  Normal keyboard triggering mode, as well as keyboard repeat and auto repeat.  Pitch bend control, portamento/glide, and transposable up and down 2 octaves.  CV/Gate/Trigger inputs & outputs.  External audio input can be run through the synth’s filter!

Here is a video run through of the actual keyboard being sold:

https://youtu.be/NZAzb56HY34

There are some spots where the paint has chipped and the underlying metal has rusted, but it’s not very distracting from the otherwise awesome condition of this synth.  Please see photos for condition.  From an electronic standpoint, this has been overhauled:

• Synthchaser Precision LED slider upgrade.  All 23 of the old original sliders have been replaced with new, smooth, high precision LED illuminated sliders.  The difference in the way these sliders feel and perform compared to the originals is a huge improvement.
• Illuminated slider caps – Slider caps with a translucent plastic stripe that allows the LED illumination to shine through, while giving you something substantial to grip onto. They look and feel awesome!
• Power supply rebuilt – All tantalum and electrolytic capacitors in the power supply have been replaced, and high quality, high temperature 105 deg C capacitors have been used for the power supply filter capacitors.
• All tantalum capacitors replaced – The tantalum capacitors in ARP synths are ticking time bombs.  All tantalum capacitors in this synth have been replaced with electrolytics to help provide stable operation for years to come.
• 4075 Filter Enhancement  – The ARP Axxe  uses the same 4075 filter submodules found in the Quadra, Odyssey, Omni, Avatar, and Pro/DGX which was designed with a calculation error that limited the cutoff frequency.  The 4075 filter submodule has been recapped, and corrected to provide superior frequency response, and tested for proper operation in the Synthchaser custom test fixture.
• Keyboard rebuild – New key bushings installed, keys removed and cleaned, bus bars removed and polished, key contacts cleaned and adjusted, keybed leveled.
• Tuning pots and slide switches cleaned
• Oscilloscope calibration – Calibrated & tuned using oscilloscope and frequency counter.

Prospective buyers are welcome to come try it out before purchasing. Local pickup is welcome and encouraged.  This is a vintage electronic item, so all sales will be as-is and final.  But visit the Synthchaser YouTube channel and rest assured that a high quality detailed restoration was done to this synthesizer by the expert on ARP Synthesizers.