🙋🏻‍♂️ Welcome to SynthFreak!

Hey and thank you for visiting my shop and for your interest in this synthesizer! Every instrument in my shop comes from my private collection and is treated with the highest level of care. My mission is simple: you receive a vintage instrument that performs flawlessly, not a "fixer-upper."

Before any item is listed, it undergoes a rigorous, multi-stage inspection by our technician. I know my prices reflect a premium compared to "as-is" listings, but this is a deliberate choice. When you buy from me, you are investing in a fully verified, professionally serviced, and risk-free collector’s item that is ready for the studio the moment you plug it in. You avoid the hidden repair bills and frustration that often accompany cheaper, unverified gear.

💎 Why You Invest in Quality

My pricing directly reflects the extensive time, technical expertise, and premium materials required to deliver an investment-grade instrument. Here is exactly what is included in your purchase:

• 🛡️ Double Technical Verification: Every instrument undergoes a comprehensive checkup before being listed. To guarantee perfection, the entire unit is tested again right before it is packed. Any component replacement, calibration, or display upgrade is handled by specialists so you receive a turn-key, flawless instrument.
• 📦 Premium Custom Packaging: Vintage electronics are fragile and irreplaceable. To ensure 100% safety during international transit, we do not use standard shipping methods. We spend hours custom-building heavy-duty, multi-layered packaging or bespoke wooden crates. This professional-grade preparation guarantees that your investment arrives in the exact condition described.
• 🚀 Worldwide Fastest FREE Shipping: I believe in delivering excellence to your doorstep without extra costs. Every purchase includes expedited, fully insured worldwide shipping at no additional charge, ensuring your instrument arrives as quickly and safely as possible.
• ⚡ Power & Global Connectivity: My instruments are configured for EU 230V. If requested, I can perform a free internal voltage conversion where technically possible. If not, I recommend a high-quality external step-up transformer (approx. $50). This is the preferred, risk-free solution for 90% of my international customers, allowing you to power multiple EU-spec devices simultaneously without compromise.
• 📑 Customs & Import Optimization: International shipping often brings unexpected financial burdens. Our dedicated logistics team reviews each shipment individually to prepare customs declarations strategically. This compliant, professional approach helps minimize or entirely avoid unnecessary import fees and taxes for you.
• ✅ Transparency & Peace of Mind: I document the entire process and prioritize full professional transparency. You avoid the hidden risks, dirty interiors, and immediate repair costs that often come with cheaper 'as-is' listings from private sellers.

Enjoy reading the description.

🎹 Information about the Item for Sale

I am offering an absolute legend of the late 1970s: the ARP Quadra. Produced in limited numbers between 1978 and 1981, the Quadra is one of the most iconic, visually striking, and sought-after analog multi-synthesizers ever created. It combines four independent, classic ARP engines into one massive, orange-and-black performance powerhouse.

The Quadra is famous for its symphonic, layered capability, allowing you to combine:

• A deep, punchy, dual-circuit Bass Synth (lower 2 octaves).
• A lush, rich String Synth (derived from the legendary Omni series).
• A flexible polyphonic Poly Synth section with its own dedicated 24dB/octave ARP 4075 low-pass filter.
• A screaming, duophonic Lead Synth with aftertouch expression and interval memory.

All of this runs into a spectacular, built-in Voltage Controlled Stereo Phase Shifter that gives the Quadra its signature shimmering, cosmic texture.

Technically, this ARP Quadra is in excellent functional condition. Anyone familiar with these instruments knows how finicky their vintage touch-panels and microcomputers can be—this unit has been thoroughly and professionally inspected. All sliders move smoothly, the keys respond beautifully (including the lead section's aftertouch), and all four sections mix perfectly. Optically, it shows normal, light signs of use consistent with its age, but retains a magnificent, well-preserved presence with its classic "leather-look" orange end blocks.

Please note: This listing includes the ARP Quadra and the power cable.

⚙️ Specifications

• Type: Vintage Polyphonic/Duophonic Analog Multi-Synthesizer
• Manufacturer: ARP Instruments, Inc.
• Model: Quadra (Model 2461/2463)
• Era: Late 1970s (1978–1981)
• Keyboard: 61 keys with Channel Aftertouch (dedicated to the Lead section)
• Architecture: 4 Independent Sections:
• • Bass Section: Monophonic 8' and 16' (Electric & String Bass presets, variable decay)
  • String Section: Polyphonic 4' and 8' (Omni-style divide-down chorus textures, "Hollow Wave" option)
  • Poly Synth: Polyphonic 4' and 8' waves with dedicated 24dB ARP 4075 VCF and ADSR envelope
  • Lead Synth: 2-Voice/Duophonic dual VCO screamer (sawtooth/square/PWM), Arpeggiator, Trill effect, and interval programming
• Effects: Integrated, state-of-the-art Stereo Phase Shifter (LFO or Sample & Hold modulation)
• Output Matrix: 4 separate section outputs, stereo output pair, and mono XLR/Line outputs
• Sound Character: Deep, symphonic, hauntingly warm, and distinctly cinematic

📦 Secure Packaging & Custom Wooden Crate The instrument is professionally and extensively packed to guarantee a 100% safe international transit.

• Ultra-Secure Multi-Layer Wrapping: The Wave itself receives multiple layers of high-density shock protection and heavy-duty wrapping.
• Custom Carpenter-Built Wooden Crate: To ensure maximum safety, a custom heavy-duty wooden crate is individually crafted by a professional carpenter specifically for your instrument.
• Palletized Shipping: The finished wooden crate is then securely strapped onto a heavy wooden pallet. This prevents any rough handling, drops, or improper orientation during transport.

📹 Video Before & After Purchase

Any interested buyer is welcome to request a video demonstration of the instrument.

Additionally, each buyer receives a detailed functional check video before shipping, so you can see and hear your ARP Quadra running through all four individual sections and the phaser. If any issue is discovered during this final inspection, it is immediately corrected by our technician.

💲 Prices

It is very important that my instruments go into good hands.

• Price proposals are welcome
• If you are seriously interested, feel free to make an offer
• Reasonable proposals will always be considered

⚠️ Information

• All instruments come from my private collection
• The collection is continuously updated
• Each instrument is cleaned, tested, and carefully prepared for sale
• Instruments are protected against dust and damage

📦 Secure Packaging

• The instrument is wrapped in multiple protective layers for safe transport
• Reinforced casing and extensive foam packing are utilized to safeguard the fragile front panel
• Fully insured shipping

💢 Shipping

• Best, fastest, and safest shipping option selected depending on destination
• Fully insured shipping
• Export documentation included if required for international shipping

⚡ Power and Connection

• Standard power connection (Switchable voltage configuration, or used with an appropriate step-down transformer depending on your region)

💯 Your Advantages

✅ Professionally checked instruments

✅ Tested and cleaned

✅ Worldwide insured shipping

✅ Export documents included

✅ Verified seller

✅ Secure payment

✅ Animal-Free & Non-Smoking Household

⛔ What are you waiting for!?

The ARP Quadra is an absolute masterpiece of vintage analog history that turns heads both visually and sonically. With the professional custom wooden crating and palletized transport, it will arrive at your studio in absolute safety. Ready to take a commanding spot in your setup! 😉