SA-251 MK2

The SA-251 MK2: A Legend Reborn

The Stam Audio SA-251 MK2 is the world’s finest and most precise replica of the legendary Telefunken ELA M 251 multi-pattern tube condenser microphone. Building a true 251 replica has been a lifetime dream for us.

However, we refused to rush the process. We waited for years until we could source and develop the exact key components required to recreate the magical sonic characteristics, three-dimensional depth, and silky top-end of the vintage original.

By strictly adhering to the original schematic and refusing to cut corners, we haven’t just mimicked the character of the ELA M 251—we have painstakingly resurrected it.

True CK-12 Brass Capsule

The capsule is the single most critical component of a 251 microphone’s tone, we use the absolute best. Unlike competing brands that rely on low-quality mass-produced K67 style replicas, our all-brass multi-chamber CK12 capsule is built to historical specifications to capture every ounce of detail.

AMI T14 Transformer

Perhaps the most critical component after the capsule. This premium transformer is built from original blueprints and specifications, matching the exact winding ratios and core materials used half a century ago to deliver that unmistakable vintage vibe.

NOS Tube

Featuring elite capacitors and a choice of a New Old Stock (NOS) 6072a. This drastically lowers the noise floor and output impedance, delivering unparalleled signal quality.

Custom Dual-Mesh Head Basket

The SA-251 MK2 employs a custom head basket that perfectly matches the original vintage dimensions. It includes the vital, ultra-thin inner mesh layer that smooths out the top end and acts as a natural pop filter.

Dedicated Custom Power Supply (PSU) Circuit

The SA-251 MK2 includes a custom-designed, heavy-duty external power supply unit engineered to deliver ultra-clean, regulated voltages. The 251 MK2 PSU circuit is meticulously filtered to eliminate AC hum and power line artifacts, ensuring a dead-silent noise floor even at high gain levels. It provides precise, stable plate and heater voltages, protecting the delicate NOS 6072 tube from voltage spikes and extending its operational lifespan.

Period-Correct Metalwork Body & Vintage Connector

To achieve true authenticity, a replica must feel, look, and acoustically interact with sound exactly like the historical hardware. The SA-251 MK2 features flawless, original-spec physical construction.

Authentic Metalwork Body: The microphone body shell is engineered with the exact dimensions, weight, material composition, and finish of the vintage ELAM 251. This ensures the correct structural resonance and handling characteristics required by purists.

Custom Dual-Mesh Head Basket: Specifically engineered to match the original acoustic dimensions, perfectly taming harsh high frequencies and eliminating sibilance naturally before it hits the capsule.

Premium Heavy-Duty Connector: Fitted with a robust, period-correct multi-pin connector that guarantees rock-solid electrical contact, zero signal degradation, and a secure connection that stands up to decades of rigorous studio use.

100% Satisfaction Guarantee: Try It Risk-Free

If you have worked with an original vintage 251 before, we are incredibly confident that the SA-251 MK2 will put a massive smile on your face every time you engage the preamp.

If you have never experienced an original, we understand that the only way to truly know if a microphone fits your workflow is to test it in your own room. That is why the SA-251 MK2 comes with a 30-day money-back guarantee. Put it through its paces, hear how it elevates your recordings, and if you don’t absolutely love it, send it back for a full refund. No questions asked.