Stam Audio SA-87


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SKU: STM-SA87 Categories: ,


Stam Audio SA-87


The SA-87 is an exact reproduction of a 1979 (rev16) vintage Neumann u87 microphone, considered by most engineers as the finest sounding u87 ever made. We have recreated the distinctive character of this microphone to the very last detail and for the first time at a price that makes it affordable to anyone.


Since the capsule represents 90% of the microphones tone we have decided to take extra care and use the best available capsule. The Heiserman Audio HK- 87 capsule is based on a 1960’s vintage set of original back plates which offers a much greater vintage tone than alternative offerings. It utilises brass rings to secure the Mylar and nylon screws to isolate the capsule halves. Unlike similar offerings that feature Chinese-made capsules, all of the HK-87 capsules are 100% hand made by Eric Heiserman in the USA and are professionally skinned with DuPont Mylar in Chicago.

The SA-87 features premium Vishay capacitors on the audio path as well as polystyrene capacitors, which are more stable and much more linear in the top end. This makes them the perfect choice for feedback circuitry. Additionally, an optional Sowter 1303f output transformer is also available

Optional Sowter 1303f transformer is also available.


The main shortcoming with current offerings is polarization voltage. While current models feature 60V, the vintage units were rated at 48V. The lower voltage of polarization makes the capsule sound more musical and mellow as well as increasing the microphones headroom, hence making it less susceptible to distortion.

We have remained 100% faithful to the original vintage circuit and schematic and have made no compromise in parts which ensures you are getting the best sounding microphone possible.


Stam Audio Engineering products are about sound quality first and foremost. Every component of every single unit is premium quality and carefully selected to ensure our units match or even surpass the quality of high end boutique-gear.

So when you see the price for the SA-87 your first thought will probably be: “how is this possible?”

We have made the bold decision to bypass distributors and retailers and use the typical 30% margin on quality components. Whilst we inherit a slightly smaller reach without distribution, we conversely can afford to have a large budget for parts, allowing us to build a better product at a better price than any alternative offerings across all of our product range. Better components mean better recordings.


If you’ve used an original vintage u87 before, we’re extremely confident the SA-87 will put a big smile on your face every time you use it.

However, if you’ve never touched the original before, as gear-lovers ourselves we understand that the only way to really know if a piece of gear is for you, is to put it through its paces.That’s why the SA-87 comes with a 30-day money back guarantee. This allows you to get it into your studio and see how it impacts your recordings. If you love it (and we think you will!), great… keep the unit and create amazing music with it. If not, no problems. Just send it back to us and we’ll fully refund your purchase. Don’t worry, whichever way you decide to go we will remain friends.


  • • Hesierman HK-87 Capsule
  • • True to the original vintage schematic (rev 16)
  • • Sowter 1303f output transformer
  • • Vishay Capacitors
  • • Polystyrene capacitors
  • • Completely discrete signal path
  • • XLR connection
  • • Custom microphone holder
  • • Omnidirectional, cardioid and figure 8
  • • 20Hz – 20kHz frequency response
  • • Hand made in Chile
  • • 1 year warranty
  • • 30 day money back guarantee