Hartmann Neuron ✅ ULTRA RARE from ´90s✅ Professional Synthesizer/ Keyboard ✅ Cleaned & Full Checked ✅

🙋🏻‍♂️ 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 unicorn of modern synthesizer history: the Hartmann Neuron. Designed by Axel Hartmann in the early 2000s, this instrument represents one of the boldest and most futuristic leaps in sound design ever attempted. It is a legendary, ultra-rare flagship synthesizer that breaks completely away from traditional subtraction, FM, or wavetable synthesis.

Instead, the Neuron uses an artificial neural network to analyze real-world acoustic sounds and convert them into multi-dimensional models called "Models" and "Meta-Models." Rather than manipulating standard parameters like cutoff or pulse width, you use the iconic, green-glowing dual joysticks to morph the physical and structural properties of the sound in real-time—such as "Scapes" (timbral characteristics) and "Spheres" (spatial and temporal properties).

Technically, this Hartmann Neuron is in excellent operational condition. Anyone familiar with these units knows they are essentially specialized, high-end Linux computers housed in a stunning industrial chassis, making professional service absolutely vital. This unit has been thoroughly inspected. The internal software runs stably, the display is crisp, and the critical stick controllers and encoders are fully functional and responsive. Optically, it is beautifully preserved, displaying that unmistakable, museum-grade futuristic aesthetic with only minimal signs of use.

Please note: This listing includes the Hartmann Neuron and the power cable.

⚙️ Specifications

• Type: Flagship Neural Network Resynthesis Synthesizer
• Manufacturer: Hartmann Music
• Model: Neuron
• Era: Early 2000s (approx. 2001–2005)
• Keyboard: 61 keys with velocity and channel aftertouch
• Sound Engine: Model-based Neural Synthesis (resynthesis of complex audio samples into fluid, organic models)
• Polyphony: Up to 20 voices (dynamic based on complexity)
• Controllers: 2 multi-axis joysticks (glowing green) for real-time landscape/sphere morphing, and an array of endless rotary encoders
• Effects: High-end integrated multi-effects engine (Delay, Reverb, Chorus, Flanger, and specialized silver/shimmer modeling filters)
• Connectivity: Multiple balanced individual outputs, digital I/O (S/PDIF), MIDI In/Out/Thru
• Sound Character: Organic, surreal, deeply cinematic, and morphing textures that sound entirely unearthly—unmatched for high-end film scoring and experimental sound design

📦 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 instrument 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 Hartmann Neuron loading models and responding to the joystick controllers. 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 encoders and joysticks
• 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 (EU voltage, non-EU buyers please use an appropriate high-quality transformer/adapter if required)

💯 Your Advantages

✅ Professionally checked instruments

✅ Tested and cleaned

✅ Verified & functional joysticks/encoders

✅ Worldwide insured shipping

✅ Export documents included

✅ Verified seller

✅ Secure payment

✅ Animal-Free & Non-Smoking Household

⛔ What are you waiting for!?

The Hartmann Neuron is a legendary centerpiece that very few studios in the world will ever possess. Combined with professional custom crating, this rare titan is ready to bring an unparalleled sonic dimension to your collection! 😉