At some point, between console restorations and speaker builds, some radios have peaked our interest, and we ended up over-engineering them all, restoring their natural ellegance and bringing their tech up to our current age of streaming and bluetooth with excellent sound quality.
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Grundig 2066
This vintage Grundig radio showcases our transformation of the 1958 Grundig 2066 into a modern streaming machine. By integrating JBL speakers, custom amplification, and wireless streaming, we preserve the charm of vintage design while delivering high-fidelity performance.
We picked up this 1958 Grundig tabletop radio with a blown (single) speaker and burnt out amplifier to restore and retrofit not knowing how well it’d turn out.
Inside the Grundig 2066: From Mono to Stereo
Usually preferring buying broken down radios, we never know what to expect. Especially when ordering online. In this case, it only took a deep cleaning and some light buffing at Vintage Source to make its wooden case shine. The audio however, was a different story.
Every Vintage Grundig radio retrofit we build is tuned for clarity, warmth, and reliability and this one is no different. We started by replacing its mono speaker with a stereo set from JBL with concentric tweeters.
After installing our custom tuned amplifier we wired the volume control to the original volume knob and kept the original clacky buttons performing some modern functions — off, on and input selection, cycling through Wi-Fi Streaming (for Spotify Connect, Apple Airplay and more), Bluetooth, and even an aux-in port in the back.
This custom retrofit honors the Grundig legacy while delivering modern performance and convenience. But don’t let it’s compact size fool you, it gets loud while keeping a clear, crisp, hi-fi sound.
Want your own? Check out current inventory and availability in our order page.
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Neckermann Körting
This Vintage Körting fully retrofit radio transforms the Neckermann 1035/60 into a modern yet elegant tabletop streamer. Built in the early 1960s, the compact radio arrived in rough condition after spotted on eBay. Its blonde tuner plate and understated cabinet made stood out enough to take a chance, sight unseen.
Following a full cabinet refinish by Vintage Source, we focused on preserving the original look and dial glass. Inside, the mono speaker was replaced with a stereo set from Polk Audio, paired with a custom-tuned solid-state amplifier engineered for clarity and warmth. The original volume knob now seamlessly controls the new amp, while the factory buttons remain functional: the “aus” button powers the unit off, pressing any other button switches it on and the far-right button has been modified to act as an input selector.
Polk Audio Drivers and Solid-State Amplification
This retroengineered Körting now supports Bluetooth, Apple Airplay, Spotify Connect, Roon and a wide range of streaming services via Wi-Fi. To support legacy devices, we discreetly installed an aux-in port on the rear panel. This addition enhances compatibility with older sources and allows users to integrate vintage gear without sacrificing convenience or quality. It complements the system’s modern streaming capabilities by offering a tactile, analog option for purists and collectors alike. Thanks to a redesigned internal layout, the stereo imaging remains clean and balanced with minimal resonance, making it ideal for small spaces without compromising fidelity.
Whether placed on a shelf, sideboard, or desk, the piece adds a touch of elegance while delivering modern functionality. In essence, it reflects Acvstica Audio’s commitment to preserving design heritage and elevating sonic performance.
Photo Credit: Vintage Source 
Photo Credit: Vintage Source 
Photo Credit: Vintage Source 
Photo Credit: Vintage Source 
Photo Credit: Vintage Source 
Photo Credit: Vintage Source Want your own? Check out current inventory and availability in our order page.