Sterling Audio ST33 Small Diaphragm Class-A FET Condenser Microphone  

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The Sterling Audio ST33 is a small-diaphragm condenser microphone that incorporates a hand-built capsule with a thin, 6-micron evaporated gold Mylar diaphragm. Optimized to capture the most definition... Click To Read More About This Product

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The Sterling Audio ST33 is a small-diaphragm condenser microphone that incorporates a hand-built capsule with a thin, 6-micron evaporated gold Mylar diaphragm. Optimized to capture the most definition and detail from all acoustic instruments like piano, drums, and guitars, the ST33 mic's FET Class-A electronics provide a level of warmth typically found in much more expensive microphones.
Requires phantom power.

  • Mid-size, all-brass capsule
  • Low noise
  • Black nickel-plated all brass body
  • Stainless steel head and grille assembly
  • HM-1 hard mount
  • Preamp: Class-A FET
    Polar Pattern: Cardioid
    High Pass Filter: switchable 75Hz, 12dB/octave
    Attenuation Pad: switchable -15dB
    Frequency Response: 20Hz - 18kHz
    Equivalent Noise: 20dB SPL ” A weighted
    Sensitivity: 26mV/Pa
    Maximum SPL: 140dB-155dB (adjustable w/pad)
    Typical Load Impedance: >500 ohms
    Output Source Impedance: 200 ohms - transformer isolated
    Dimensions: 7.4" long, 1.2" max. dia.
    Weight: 8 oz.
  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 5 reviews)

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Reviewed by 5 customers

Displaying reviews 1-5

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A Really Beautiful Mic

By Banmier

from Asheville

About Me Professional Musician

Verified Buyer


  • Clear Sound
  • Compact
  • Easy To Use
  • Versatile
  • Well Made


    Best Uses

    • Acoustic Guitar
    • Amateur Recording
    • Events
    • Home Studio
    • Percussion
    • Performances
    • Professional Recording

    I got this mic specifically to record an accoustic guitar for a project I was working on. I love the sound. I set this mic up where the neck connects to the body of the guitar pointed back towards the body at a 35 degree angle. I use a tube preamp to record through. The sound is spectacular. It really picked up the richness of the guitar but was still able to get all the small detail of frets sounds. Perfect.

    (3 of 3 customers found this review helpful)


    Excellent mic for the price

    By Jonathann Rice

    from Nashville

    This is an excellent mic on acoustic guitars. I usually do my recording at my home studio and then do mixing/mastering at a bigger studio. Many time engineers with years of experience have asked me what mic/pre-amp combo I used to get my acoustic guitar sound. When I tell them the sterling ST-33 straight into my digi002 to ProTools, they are extremely surprised and impressed. I am at the point where I can afford and even own more expensive mics, but I still turn to the Sterling for acoustics more often than not. It also works well as drum overheads in a small room that's not great acoustically (i prefer a wider pick up range in a bigger room) and can work for the right kind of vocalist (usually a pretty loud or aggressive rock singer. Most female vocalists and some males will sound too thin). But it is worth it for the acoustic guitar. If you're on a budget, get two of these. Use them for stereo acoustic recordings and as drum overheads and you'll be happy at their versatility and quality.

    (2 of 3 customers found this review helpful)


    ST 33

    By JustGotPaid

    from Mississippi

    This mic came highly recommended and when I tried it I heard why. I've used it on just about everything and love the way it accurately reproduces the sound course. This is one I wouldn't be with out. Give this one a try, it's a very good one and the price is right.

    (9 of 9 customers found this review helpful)


    Vital for any home recording studio

    By Antonym of

    from Tucson AZ

    I bought this mic after a great deal of researching different condenser mics in the same price range, and this one is key for studio recording, it captures the rich true natural sound sound of an acoustic with all the beautiful shimmers and the bass you need as well. think Elliott Smith, Jack Johnson and Dave Matthews recordings, where the strong sonding acoustic at the forefront makes all the difference,this mic gives pro sound for a good price, and the -10 db signal boost allows you to mic drums and anything else as well. Sterling audio seems to be the next big mic company but i would also highly reccommend the 990 & 991 condenser mic package from MXL, for $100, those mics can suprisingly more than hold their wait against mics twice the price of this one....

    (2 of 2 customers found this review helpful)


    ST33 mic is a good deal

    By Rockin Johnny

    from Warrenton, VA

    I have been very happy with this mic. It is very good on off-axis guitar amps, acoustic guitars, and rock vocals. I am going to try it as an overhead mic for my drum kit. If I like what I hear then I plan on buying one more. Very good build quality and really nice sounding and warm mic. Would highly recommend.

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