AKG D-224
A two-way dynamic that AKG's own advertising pitched as one of the most advanced mikes made. Working studios kept reaching for it long after the ads went yellow.
Overview
The D-224 turns up in strange places once you start looking. It appears in a period advertisement in HiFI-Stereo (December 1974, p.121), pitched as one of the most advanced mikes made - a dynamic mic keeping company with AKG's capacitor line. It shows up in a 1980 dealer sale sheet from Mericka Audio, priced at $400.00 list and discounted to $280.00, in the same column as a C414EB and a Neumann KM 88. And it shows up in the suitcase of a Stellavox SP7 review unit, where a pair of them arrived as the reference microphones for evaluating a £525 tape recorder.
The D-224 is a "two-way" cardioid dynamic. AKG's own advertising in High Fidelity (December 1974, p.8) explained the idea plainly: one element handles the highs, another handles the lows, and the result is described as "incredibly smooth, even recordings." That same advertisement framed the purchase as a tug-of-war between ear and wallet, which hints that the D-224 was not cheap. The 1980 Mericka sheet confirms it: $400 list, well above the D 12 E at $225 and the D 140 E at $185, and in the same territory as capacitor mics.
The D-224 clearly did well on close-miking and instrument work. A 1977 Studio Sound advertisement (November 1977, p.69) featuring Manfred Mann's Earthband lists the D 224 E for floor tom, hi floor tom, rack tom and snare. That's four drum positions, which is a working drummer's endorsement rather than a spec-sheet claim. The same 1980 Mix studio directory lists D 224-E in the mic locker at Celestial Sounds in New York, alongside Neumann U-87s and U-89s.
Build and service details are thin in the surviving documentation. The price trajectory is documented: $400 list in the 1980 Mericka sale sheet, discounted to $280. The D-224E variant appears in that same sheet and in the studio listings, which suggests the E suffix was the version in circulation by the late 1970s. Whether the D-224 and D-224E differ in any meaningful way is not established in the available sources. The review literature treats them interchangeably, and the Mericka sheet lists only the E.
For anyone buying one today, the practical cautions are the obvious ones for a fifty-year-old two-element dynamic: the capsule assembly is more complex than a single-diaphragm design, and parts are not being made. The D-224 earns its place in a collection because it is one of the few dynamics that a serious studio would put up against a capacitor mic and splice the results without apology. That is a specific and defensible reason to own one — not nostalgia, not rarity, but the fact that a 1972 reviewer could not hear the seam.
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