AKG C 414EB-P 48
A phantom-powered workhorse that carried the CK 12 capsule into the digital era - and got scored against Neumann by a room full of trained ears.
Overview
The C 414EB/P48 is the phantom-powered member of AKG's long-running C 414 line, and the most recent offering in that family as of the mid-1980s. It shares its one-inch, dual-diaphragm CK 12 capsule with the tube-driven C 12, which preceded it by three decades. AKG used the same capsule across its professional quad, stereo, and mono condenser microphones. The tube models needed their own power supplies and a warm-up. The C 414EB/P48 runs on 48V phantom power, which is what the "P48" in the name denotes. According to AKG's own 1982 launch material, the electronics are a completely new departure from the earlier C 414EB, and the company aimed the microphone squarely at the emerging digital recording market.
The C 414EB/P48 offers four polar patterns - the usual omni, cardioid, and figure-of-eight, plus hypercardioid - along with a full set of capsule attenuation and low-frequency rolloff settings. AKG claimed in 1984 that it had "the highest dynamic range of any microphone we knows," which reads as marketing copy, not a measured verdict. The company's advertising billed it as the microphone that would let engineers realize the advantages of digital recording, and leaned heavily on the CK 12 capsule's gold-plated dual-diaphragm construction as the selling point.
Studio Sound (August 1982, p.41) described the C 414EB/P48 as the latest development in a long line of famous AKG large-diaphragm microphones, all employing the CK 12 one-inch dual-diaphragm capsule, and noted that the new model's electronics were a completely new design. That framing — new electronics, old capsule — is the essence of the microphone. AKG wasn't trying to reinvent its sound; it was trying to make a proven sound work in the transistor era.
In a May 1985 stereo evaluation session at Clapp Recital Hall, the C 414EB/P48 was ranked against fifteen other large-diaphragm microphones by a panel of listeners scoring on a 1-to-10 scale. It came in at a composite 6.86. That put it in the middle of the pack, ahead of the Neumann U47 (6.74), the AKG C24 (6.68), and the Milab VIP-50 (6.55), but behind the Neumann M50 (7.94), the Neumann TLM170 (7.79), the Neumann SM69 (7.46), the Sanken CU-41 (7.21), and AKG's own C12 (7.09). The same evaluation ranked the C 414EB/P48 at 8+ in the reviewer's own rating scheme, alongside the Neumann SM69s and the classic C12. The panel's composite and the reviewer's personal ranking don't line up, which says something about how divisive the mic's voicing is.
That evaluation also produced a telling comparison. The same CK 12 capsule was available in the C 414EB/P48 at less than half the price of AKG's own tube reissue, The AKG Tube, which sold for $1,700 at the time. The reviewer's conclusion was blunt - the FET unit is quieter and much easier to use thanks to 48V powering, and The Tube was too expensive for its true level of performance.
Durability and service life aren't documented in the available material, and production years for the C 414EB/P48 specifically aren't confirmed. What is confirmed: the microphone was in active professional use by 1985, appearing in studio equipment lists alongside Neumann U87s, U89s, U47s, and SM69s, and AKG C12As. It shows up in the mic locker of Steve Sperry's "The Mult Shop" personal-use studio, listed with a C505E-11, D100E, and C12A.
At a listed street price of $575, the C 414EB/P48 undercut most of the elite large-diaphragm competition by a wide margin. The Milab VIP-50 ran over $1,500. The Neumann TLM170, which served as the control microphone in the 1985 evaluation sessions, was a considerably more expensive piece. AKG's pitch was straightforward: you get the CK 12 capsule and four patterns for a fraction of what the boutique names charge, and you give up some high-frequency extension and a bit of the "premium" cachet in exchange.
The four-pattern design is what separates the C 414EB/P48 from single-pattern large-diaphragm mics. Omni, cardioid, figure-of-eight, and hypercardioid cover virtually every studio application short of a dedicated stereo pair. The capsule attenuation and LF rolloff switches let you tame proximity effect and high-SPL sources without swapping microphones. That flexibility is why the C 414 line became a default choice in studios that couldn't afford to keep six different large-diaphragm mics on hand.
The "condenser-like" emphasis in the 6-10 kHz region that Recording Engineer/Producer flagged is the same character that made the C 12 and C 24 famous as vocal microphones. The C12's brightness peak sits slightly higher in the spectrum than the Neumann U47's, which is why the two mics appeal to different engineers for different sources. The C 414EB/P48 inherits that family voicing. It's a bright microphone, not a neutral one. If you want a flat, uncolored capture, this isn't the tool. If you want the CK 12 sound with modern powering and no tube maintenance, it is.
The available documentation doesn't cover frequency response figures, self-noise specifications, maximum SPL ratings, or the specific attenuation and rolloff values offered by the switches. What the period sources do show is a versatile, affordable, phantom-powered large-diaphragm condenser that carried AKG's most famous capsule design into the FET era, earned solid if not spectacular marks in blind evaluations, and found its way into working studios on both coasts.
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