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Soyuz SU-011 Small-Diaphragm Tube Condenser Microphone - Stereo Matched Pair (Demo Deal)

Stereo matched pair of hand-made small-diaphragm tube condenser microphones with wood case, power supply and cable, XLR cable and microphone clip

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Soyuz Microphones
Included with your purchase:
  • Free Shipping (USA)
  • Free Tech Support
  • Free Extended Warranty

What is a Demo Deal Item?
In just about every case, a Demo Deal item is in nearly mint-condition but has be taken out of the box so a customer could take a look at it or try it for a few days. Because it is no longer factory-sealed, we offer it to you at a special price with full manufacturer’s warranty.

Regular Price: $1,999.99
Save 10%: -$200.99
Sale Price: $1,799.00

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Product Description
Additional Information
  • Product Description

    Boasting the same hand-crafted workmanship as its larger sibling, the Soyuz SU-011 Small-diaphragm Tube Condenser Microphone features an original "dead stock" sub-miniature tube, manufactured in the Soviet Union in 1986. The included cardioid capsule can be swapped for hyper-cardioid or omnidirectional models.

    Seeking more adventurous sonic possibilities? The SU-011 can accommodate the capsules the SU-017, giving you both large and small diaphragm options in a small body format.


    • Operating Temperature Range: O°C - +70°C
    • Storage Temperature Range: -20°C - +70°C
    • Humidity Range: 0%...90% at +20°C and 0% - 85% at +60°C
    • Directional Pattern: Cardioid with optional capsules in omni and hypercardioid (sold separately)
    • Frequency Range: 20Hz - 20kHz
    • Sensitivity: cardioid 12 mv/Pa; omni 10 mv/Pa; hypercardioid 14 mv/Pa
    • Impedance: 150 Ohm
    • SPL: -120 dB Equivalent Noise: less than 18 dB (a-weighted)
    • Tube Type: 6S6B
    • Power: Dedicated power supply- BP-011
    • Size: 26x123mm
    • Weight: 30 grams


    • SU-011 tube condenser mic
    • Wooden storage case
    • BP-011 power supply with power cable
    • XLR microphone cable (5 meters)
    • SU-011 microphone clip

    Want to hear it? Check out the Soyuz Small-Diaphragm Microphone Test 2016 on SoundCloud

  • Additional Information

    Condition Demo / B-Stock
    Package Contents PSU, PSU connection cable, mic-PSU cable, microphone box
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