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X-15 Stereo Short Ribbon Microphone

Two hand-tuned ribbon elements with legendary symmetrical design


The X-15 Stereo ribbon microphone houses two separate matched ribbon motors that are positioned one above the other. The elements are offset 90 degrees and are configured in the Blumlein setup. Stereo separation is superb and off-axis coloration is minimal. Add in the excellent sensitivity and frequency response range the X-15 is ready for the big leagues. The fit and finish are of top quality and includes a premium suspension shockmount, thick padded vinyl pouch and an upgraded aluminum case. Package also includes a 20ft. 5-Pin XLR cable that connects to a splitter cable for conection to upper and lower ribbon motors.

Legendary symmetrical ribbon design is incorporated into the X-15

Unlike most ribbon motors designed today with an offset ribbon element the new Cascade X-15 houses two hand-tuned ribbon elements that incorporate the legendary symmetrical ribbon design. This design offers a true figure 8 pattern. The corrugated aluminum membrane itself is positioned in the center from front to back, thus producing a balanced audio input signal to both sides of the ribbon assembly.

Glen Phillips, lead singer of Toad the Wet Sprocket just completed a new album called "Coyote Sessions" done completely live with one Cascade X-15 stereo microphone.

 The album was recorded at Coyote Road Studio in Santa Barbara. Artist list includes- Jim Connolly, Alastair Greene, Tariqh Akoni and Sean McCue.  Video shot by Nina McCue. 

Samples Courtesy of The Disney Sax Quartet



The MP3 samples were recorded by the Disney Quartet on the live-to-air jazz concert for a local public radio station in Orlando Fl. John Marsden donates his time & equipment as part of trying to keep the genre alive. Instead of micing each instrument individually and then mixing, John records live-to-air to his laptop running DP. John put up the Cascade X-15 stereo ribbon (which was responsible for 75% of the signal) in a X-Y configuration along with the FAT HEAD as a mono and let the musicians do what they do best. John's reaction: WOW - total warmth with air on top - you can hear where every musician is located and all the subtleties of their playing - and the self compression of these mics is just so SWEET!!

Customer Response: I put the X-15 up over a drum kit as an overhead. Plugged it into my True Precision Mic pre in channels 1 & 2 which have the MS encoding. Brought up the volume and then ....picked my jaw up off the floor. Complete and total amazement. I've used Royer Stereo as Drum overheads with mixed...if not poor results. The X15 was stunning. The True Pre gave me way more gain than I needed too. I was not having to crank my pre to 'levels unknown'.

The imaging was amazing, and it got all the drums and the room in a wonderful balance. Dennis Cupp

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  • Type: Ribbon (velocity) Microphone
  • Ribbon type & Dimensions: 99% Pure aluminum, 2.5 micron, 1 3/4" (L) X 3/16" (W)
  • Polar pattern: Figure 8 Symmetrical design
  • Sensitivity: -51.7 dB +/- 2dB (2.6 mV/Pa)
  • Frequency response: See PDF below
  • Output Impedance: <=200 Ohms
  • Recommended load impedance: >1000 Ohms
  • Max.SPL (1% THD @1000 Hz): 135 dB
  • Connector: Heavy gauge 5-Pin male XLR
  • Size: Diameter: 1 1/4" (O.D. grill), overall length 9 1/2", 1" (O.D. body)


  • X-15 Stereo Ribbon Microphone
  • Aluminum case
  • Premium suspension shockmount
  • Thick padded vinyl pouch
  • Wind filter
  • 20ft. 5-Pin XLR cable
  • Splitter cable for left right channels
  • Micro-fiber cleaning cloth
  • Specifications and typical measurement report

Frequency Response and Polar Pattern:

With Stock Transformer

X-15 Cut-Sheet


Alternate Images




Upgrade Transformer Option

Optional Lundahl transformer available

 White paper: LL2912 Transformer







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