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TE Audio 4071 – Replacement Part Compatible with Graaf GM20
I’m proud to present the perfect clone of the TE Audio model 4071 choke, an essential component for the Graaf GM20 amplifier. This replica is the result of a detailed reverse-engineering process carried out to solve a common issue faced by GM20 owners: the difficulty of finding a proper replacement for the TE Audio 4071 choke. In this article, I describe the component’s characteristics, the reverse-engineering process, and how this clone effectively eliminates the annoying hum produced by the Graaf GM20 when the original choke fails.
Pair price: €350, shipping within Italy included
Price updated May 2023
If interested in purchasing, please contact me via this form.
The TE Audio 4071 choke plays a crucial role in the proper operation of the Graaf GM20 amplifier. It regulates current flow within the circuit and suppresses power supply ripple. This is not a simple single-winding choke, but a complex component with multiple windings whose behavior within the GM20 circuit is quite sophisticated. In fact, it could be more accurately described as part of a filtering and noise-neutralization network rather than a conventional choke.
Eliminating the Graaf GM20 Hum
The hum produced by the Graaf GM20 can completely ruin the listening experience. With our TE Audio 4071 choke clone, this issue can finally be solved. Replacing the original choke with a high-quality replica is essential to restoring the amplifier’s silent and clean operation.
The creation of the TE Audio 4071 choke clone was made possible through meticulous reverse engineering. The original component was disassembled and analyzed in detail—materials, internal structure, and design specifications were all examined. This effort ensured that the replica perfectly matches the original in both characteristics and performance.
The Result
After an extensive reverse-engineering and testing process, I am pleased to present the perfected clone of the TE Audio 4071 choke. Crafted with the utmost precision and high-grade materials, it ensures outstanding performance and perfect compatibility with the Graaf GM20 amplifier. The result is a clear, noise-free sound and the complete restoration of the GM20’s original sonic purity.