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The Telefunken ELA M 251 microphone, introduced in the early 1960s, has become one of the most beloved microphones in recording history. Known for its clear, sparkling highs and warm midrange tones, this legendary tube microphone quickly became a favorite for recording vocals, orchestras, and acoustic instruments. The 251's unique brass capsule, tube electronics, and transformer-balanced output created a smooth and open sound that has been used on countless classic recordings.
Over the years, the legendary 251 has inspired many modern versions, each designed to capture the magic of the original while offering updated features and improved reliability. In this blog, we'll explore some of the best modern 251-style microphones available today, from exact copies to innovative new designs. Ready to get started?
Up first, we’ve got a meticulously accurate reissue from the original manufacturers, and it doesn’t get much closer than this. The TELEFUNKEN Elektroakustik ELA M 251E is widely considered the closest thing to a vintage ELA M 251 available today, thanks to its edge-terminated, dual-backplate CK12 capsule, Electro-Harmonix 6072A vacuum tube, and Haufe T14/1 output transformer (the same transformer used in AKG’s classic C12).
Finished with historically accurate cosmetics and true-to-spec construction, this modern 251 delivers the unmistakable sound and feel of the original, without the risks that come with vintage ownership.
Of course, the Telefunken ELA M 251E is kind of the holy grail of 251-style mics, so if you’re looking for something a bit more affordable, check out the Telefunken Elektroakustik TF51, which also features a CK12-style edge-terminated capsule, 6072A vacuum tube, and custom-made Haufe transformer, but offers a fresh take on the classic “Austrian” sound.
Up next is the FLEA Microphones M 251, a carefully built recreation that stays true to the spirit of the original. At its core is a custom Tim Campbell-designed CK12 capsule (engineered to the same specs as the original CK12), paired with an authentic 6072A vacuum tube, and a custom T14/1-style transformer. FLEA also offers a solid-state version, called the M 251 FET, which captures the same spirit but requires minimal maintenance.
Next on the list is the Upton Microphones 251, a thoughtful take on the classic ELA M 251 design. Upton stays true to the original recipe by using a custom CK12-style capsule, a T14 output transformer, and the same circuit topology that made the vintage mic so special.
If you're after obsessive, component-level accuracy, the Heiserman H251 is definitely a top choice. It’s built around a custom Generation 5 HK12 capsule and a T14/1 transformer engineered from a pristine 1961 unit. Paired with high-end components like Vishay and Takman Rex resistors, plus NOS polystyrene and PIO capacitors, this mic captures every detail of the legendary 251 sound with stunning clarity.
However, the H251 isn’t the only Austrian-inspired mic in the brand’s catalog. While it doesn’t use a tube, the Heiserman Audio Type-21 combines the same Generation 5 HK12 capsule with a unique transformerless circuit built around a low-noise JFET, precision resistors, and high-end tantalum and film capacitors. The result is a compact, affordable mic with classic 251-inspired tone.
Designed by David Bock of Bock Audio, and based on his most cherished microphone designs, the UA Bock 251 builds on the legacy of the original as an authentic replica made with premium components. At the heart of this microphone is a proprietary all-brass C12-type capsule that captures the character of the vintage original, while the custom transformer has been re-engineered for a wider frequency response and greater headroom.
Manufactured in Santa Cruz, California, with high-quality through-hole components, the Bock 251 ships complete with a shock mount, power supply, 20-foot cable, wooden box, and retro-style suitcase.
Wunder Audio's 251 is a limited edition recreation built with obsessive attention to detail and premium components. The Wunder 251 is built using three main components: a pristine CK12 capsule with 6-micron Mylar, a period-correct Hiller T14/1 transformer, and a hand-tested NOS GE 5-star 6072A tube, which is arguably one of the finest 6072 tubes ever made.
Golden Age offers not one, but two 251-inspired mics. Up first is the Premier ELA M251E, which features the brand’s carefully tuned K251D capsule, an EH6072A tube, and a reverse-engineered polar pattern switch mechanism for ultimate authenticity.
Alternatively, the Golden Age GA-251 MKII is a more affordable take on the classic 251. Handmade in small batches of 50 units at a time in a boutique microphone workshop, each GA-251 MKII features a 34 mm K251-style capsule and a New Old Stock Phillip 5840W super low-noise pentode tube.
Much like the FLEA 251, the Pearlman TM 250 features a custom C12-type capsule hand-made in Denmark by Tim Campbell, paired with a carefully selected 6072 (12AY7) tube. The audio circuit uses old-style carbon resistors to maintain the original sound, while an accurate replica of the original CINEMAG output transformer delivers that beautiful, vintage smoothness.
If you’re searching for something that captures the classic 251-style sound but working on a budget, the Peluso 22 251 is a solid choice. It features a dual-sided, edge-terminated 34 mm gold-coated Mylar capsule and a 5744WB subminiature glass triode tube for smooth, detailed sound. Inside, the circuitry and transformer have been designed to match an authentic vintage 251.
The most affordable 251-style mic on our list, the Warm Audio WA-251 delivers classic tube condenser performance without breaking the bank. Under the hood, there’s a custom WA-12-B-60V edge-terminated, dual-backplate, all-brass vintage CK12-style capsule, paired with a JJ Slovak 12AY7 vacuum tube. A Cinemag USA output transformer ties it all together, delivering the big low end and open top you expect from a 251-inspired design.
For a modern, no-hassle twist on the classic tone, the solid-state Colares is inspired by the 251 but built for long-term reliability. Its sound comes from an NOS JFET that’s specially selected and individually biased using a custom test fixture. Plus, the Colares also offers two unique features: a pad/voicing switch and a 3-way filter switch for fast control over harmonics and low-end response.
Last but not least, if you’re searching for true versatility, modeling microphones are worth a close look. Units like the Antelope Audio Edge Solo/Duo and Axino, the Universal Audio Sphere DLX/LX, and Slate Digital ML-1A all provide authentic software emulations of the legendary 251, plus dozens of other classic mics. This approach lets you capture a performance and then experiment with different vintage tones right in your DAW, making them incredibly powerful tools for the modern hybrid studio.
Curious how all these amazing 251-style mics actually compare? Don't just take our word for it, check out our definitive microphone shootout! It's the perfect way to hear the subtle differences and find the perfect match for your studio.
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