AKG D-224E
A dynamic microphone that behaves like a condenser - two capsules in one pencil body, and the studio-grade flagship of AKG's oddest design family.
Overview
The D-224E is a two-way cardioid dynamic microphone, and that is not marketing fluff. Inside a single pencil-shaped body AKG fitted two separate elements - one handling the highs, one handling the lows - and crossed them over the way a loudspeaker crosses a tweeter to a woofer, only in reverse. AKG's own advertisements of the period leaned hard on the analogy, calling it a "tweeter and woofer - only backwards," and the company was proud enough of the arrangement to point at the patent behind it. The design is the most sophisticated application of AKG's exclusive two-way principle, and the D-224E sits at the top of that family as the premier, studio-quality member.
It was made in Austria, and the archive's best reading of the era places it in the mid-1970s, though that date is contested. Collector listings have pinned individual units to circa 1968, to the late '60s, and to the 1970s generally. No source in hand confirms production start or end dates. Treat any single year attached to this microphone with suspicion, including the ones printed on dealer tags.
The sound is the reason people still hunt it. Owners and dealers describe it as a classic pencil dynamic with the frequency response of a condenser - a dynamic that doesn't sound like one. The field reports back that up. The mic turns up on tom-toms and snare because it adds presence and detail without piling on boomy low end, and it has a following among acoustic and classical guitar recordists who want natural capture rather than coloration.
Key Features
Two Elements, One Body — the Crossover Principle
The core of the D-224E is a high-frequency element and a low-frequency element sharing one housing. AKG's advertising framed this as the answer to a problem every wide-range dynamic faced: push the response at one end and the other end suffers, with trouble in between. Two elements, phase-aligned through an integral crossover, let the mic cover the full spectrum without strain. The company's ads claimed a completely flat response across the audio spectrum, natural reproduction up to 90° off axis, no boomy proximity effect, and virtually no feedback problems. Those are advertising claims, not measured results, and the archive has found no independent test report for this model. They do describe the design intent.
Condenser-Like Response from a Dynamic
Sellers and users keep reaching for the same comparison: a dynamic microphone with the frequency response of a condenser. One studio owner's take is that it sounds very natural, like a condenser rather than a dynamic at all. That is what separates it from the ordinary dynamic workhorses of its era.
Cardioid Pattern and the Supercardioid Question
The polar pattern is cardioid by the standard documentation, and manufacturer-adjacent spec listings and dealer descriptions agree. At least one studio's notes describe the D-224E as a two-way supercardioid instead. That discrepancy has never been resolved in the surviving record. Assume cardioid, and verify against the individual unit's documentation if the distinction matters for your setup.
Bass Rolloff Switch
At least one owner's account notes a bass rolloff switch on the D-224E. It is a small thing, but a useful one on a microphone this full-range, since it puts proximity control at the source rather than in the console.
The Capsule Description Conflict
Dealer listings have described the D-224E's capsule as a dual-diaphragm dynamic. That sits awkwardly against the two-separate-elements description AKG's own advertising used. Both descriptions are recorded here as stated. The two-element, crossover-based account is the one AKG itself pushed, and it matches the "two-way" name. The dual-diaphragm phrasing may be a dealer's shorthand rather than a contradiction, but the record is not cleaner than that.
Accessories Worth Knowing
Original accessories show up in listings and are worth watching for: the AKG SA18/3 silver metal holder, the AKG W22 solid metal windscreen made for the D224 series, and the original foam windshields. A complete example with its holder and windscreen is a more useful purchase than a bare mic, given how rarely the accessories surface on their own.
Historical Context
AKG had been building two-way dynamics for years before the D-224E arrived. The earlier D-200E was reviewed in Audio (December 1967, p.85), and that review took note of the two-element internal structure that defines the series - two capsules in one housing, handling the frequency range in tandem. The D-224E belongs to that same series and was positioned as its studio-grade flagship: the premier, studio-quality member of AKG's distinguished and totally unique family of two-way cardioid dynamic microphones.
The D-224E's own paper trail is almost entirely AKG's advertising. The campaign ran through hi-fi and trade publications, including High Fidelity (December 1974, p.8), where the copy described the mic as one of the most advanced made and walked buyers through the two-element principle. It then told them, more or less, that the decision came down to their ear against their wallet. DB-Magazine (October 1974, p.7) and Recording-Engineer (August 1974, p.3) carried the same "tweeter and woofer - only backwards" pitch.
The trade classifieds fill in the working life of the mic in a way the ads can't. Used D-224Es turn up repeatedly in Recording Engineer listings through the mid-1970s: a pair at $300 in one Nashville studio's for-sale notice, a single at $130 in a San Antonio ad, pairs at $100 each in Duluth. A 1983 Recording Engineer account of a Roxy Music date describes a D-224E on the saxophone, fed through a small Yamaha mixer and sweetened with a Roland Space Echo. Another engineer interviewed in the same publication names the D-224E among his snare-drum choices alongside an ECM-22P.
Collectibility & Value
The D-224E has an active secondary market. Listings appear regularly on the used-gear sites, and the microphone has a small but devoted following. One user calls it their absolute favorite dynamic mic and one of the best bargains going in dollars paid versus sound quality, rating it alongside the Sennheiser MD441 and MD421 and preferring it on acoustic and classical guitars. That is enthusiast opinion, not appraisal.
No confirmed current market prices are captured in the archive's research, so watch completed sales rather than asking prices. The accessories carry much of the value: original box, the SA18/3 holder, foam windshields, and the W22 metal windscreen are commonly bundled with good examples and commonly missing from cheap ones. A dealer listing for unit #5729 graded its cosmetics at 9.5 on the seller's own scale, and that grade is only as good as the seller.
No common failures, repair notes, or maintenance information for the D-224E have surfaced in the research. Buyers should inspect the capsule elements and the rolloff switch on any example they can handle. The archive has no documented failure pattern to warn about.
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