Vintage Grundig GDM 121 Microphone (Sennheiser MD 21) – Old, but gold (1958)

Some microphones just have it. The Grundig GDM 121 in hammer-finish gold is one of them. It is essentially the same microphone as the Sennheiser MD 21 HL—so you get that trusted old German broadcast DNA in a finish that looks every bit as special as it sounds. And yes, it really does look awesome. But this isn’t just eye candy: it delivers a strong, healthy signal, plenty of vintage presence, and exactly the kind of no-nonsense performance that made these old German dynamics so beloved in the first place. This example should date from roughly 1958 to 1960, since Sennheiser switched to a different, more curved grille design from around 1960 onward.

Sound Character
Full, direct, and beautifully solid. The GDM 121 has that unmistakable old-school dynamic tone: rich mids, a nicely controlled top end, great low end and a strong, confident signal without unwanted noise. It feels instantly “finished” on guitar and bass amps. But it’s also wonderful on acoustic guitar, where it captures the tone in a really pleasing way without getting harsh.  Some people also love using it as a drum crotch mic – probably because of the sound, and maybe a little because it looks so good doing it. There’s something very reassuring about the way it sounds – clear, weighty, and effortlessly usable. A proper vintage tool, but one that still makes complete sense in a modern setup.

Specs

• Type: Dynamic
• Essentially the same mic as the Sennheiser MD 21 HL
• Polar pattern: Omnidirectional
• Frequency response: 50 Hz – 15 kHz  
• Sensitivity: 0.2 mV/µbar at 200 Ω  
• Impedance: 200 Ω
• Weight: 230 g  
• Finish: Hammer-finish gold
• Cable: Fixed textile cable – upgraded with a fresh Neutrik XLR
• Can be wired balanced internally, though it already sounds excellent as is.

Accessories
It comes in the original box, together with the original desk stand in matching hammer-finish gold—a really lovely and unusually complete vintage set.

Condition
Very, very good. Rarely seen in such well-kept condition. Clean, handsome, and exactly the kind of vintage microphone you’re thrilled to find still looking this good.