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DA 87i DIY Microphone Kit

DA 87i Condenser Microphone

The DA 87i sets a new standard for what a vintage ’87-style microphone should be. Featuring the renowned DA-K87 capsule, Cinemag transformer, and a genuine NOS Fairchild JFET, the DA 87i captures the faithful vintage sound you’ve been chasing, and at an unprecedented price — go DIY or buy yours pre-built by a U.S.-based Dachman Audio technician.

“…the closest reproduction of the original U87 model I have experienced…”

Faithful vintage sound

Hearing is believing.
An incredible capsule.

It all starts with the capsule. The secret to the authentic vintage sound of the DA 87i is the renowned DA-K87 mic capsule. Made from high-quality brass backplates and 6-micron gold-sputtered mylar, the DA-K87 reproduces a balanced, natural tone with rich lows and silky smooth highs. The result is a sound that is truly reminiscent of the original, vintage capsule.

Build the legend

A classic, reborn.
DIY made easy.

The DA 87i DIY microphone kit includes a beautifully designed body, premium components, professional shockmount, a real wood mic box, and crystal-clear, illustrated instructions to guide you every step of the way.

Premium components.
No compromises.

When you build your kit with components selected for quality and tight tolerances, you’ll have a microphone that not only sounds great, but lasts you a lifetime, too.

Authentic sound

In order to achieve the most authentic sound, the DA 87i uses the highest quality materials throughout, including premium resistors and capacitors from WIMA and the Panasonic FC series.

Pre-matched components for an easier build

Each DA 87i DIY kit includes pre-matched 2.2k resistors and a genuine Fairchild 2N3819 JFET that’s been hand-selected for optimal performance.

Vintage vibes.
Hello Cinemag.

The DA 87i includes the CM-13113 output transformer from Cinemag, an industry leader in premium audio output transformers. The CM-13113 is the perfect complement to the DA 87i circuit and delivers exceptionally wide bandwidth and low phase shift.

Professional accessories

Elegant wood box.
Pro shockmount.

Protect your DA 87i DIY kit in style with the included wood box.  The threaded shockmount isolates the microphone from environmental noise and vibration. 

Believe your ears.

Printed assembly guide.
Step-by-step photos.

Complete your build in an afternoon. Every DA 87i DIY kit includes a set of printed instructions so you can get started right away. Dachman Audio products are backed by free, lifetime support — we’re here to help.

What’s included.
All the components you need.

  • 87-style mic body
  • PCB set
  • DA-K87 mic capsule
  • Cinemag 9.5:1 output transformer
  • Components from Vishay, WIMA, Panasonic, Fairchild, and more.
  • Professional metal shockmount
  • Wood microphone box
  • Color, printed assembly guide
  • 1 year limited warranty
  • Lifetime support

Dachman Audio is not in any way affiliated with Neumann Microphones, the U87 microphone, or Georg Neumann GmbH.