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sE Electronics Gemini II Large-diaphragm Tube Condenser Microphone Demo

Dual-tube Cardioid Condenser Microphone with 12AX7 Input Tube and 12AU7 Output Tube

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A Mic You'll Love to Sing Into!

A tube mic - but even better! sE Electronics puts its own spin on the classic tube mic with the Gemini II. We've all heard tube mics on some of the most famous vocal recordings of all time, but you've never heard a tube mic like this. The Gemini II puts a cool spin on the traditional tube mic, using both a 12AX7 at the input stage and a 12AU7 at the output stage. Two tubes, huh? You might think this would put too much tubiness in play, but in actuality it gives you the body and warmth of a tube mic coupled with the top-end response of the "best of the best" solid state condensers. How could you go wrong? Many things promise to give you the best of both worlds, and few really do. The Gemini II delivers, and how! Give your mic locker a kick in the pants with the Gemini II. You won't be sorry!

sE Electronics Gemini II Dual-tube Condenser Microphone Features at a Glance:
  • Dual-tube design
  • 12AX7 at input stage
  • 12AU7 at output stage
  • Brings you best of classic tube mic designs with solid state-style top-end
  • Frequency Response: 20Hz-20KHz
  • Sensitivity: 12.6mV/Pa - 38 +/- 1dB(0dB=1V/Pa 1000Hz)
  • Polar Pattern: Cardioid
  • Impedance: 200 Ohms
  • Equivalent Noise Level: 12dB(A weighted)
  • Max SPL for 0.5% THD@1000Hz: 135dB
  • Power Requirement: External PSU included.
  • Connector: 3-pin
An innovative tube mic from sE Electronics Gemini II!

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At Sweetwater, we're so picky that what we call a "demo" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

What demo means to us is that we've had it out of the box, or maybe it was in a customer's hands for a few days and isn't "factory fresh" as a result. Every demo item we sell has Sweetwater's 2-year Total Confidence Coverage™ warranty, and has been tested and verified up to "new" specs by our factory-authorized technicians to make sure it's in perfect working order before we ship it to you.

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Warranty Info

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Tech Specs

  • Microphone Type: Tube Condenser
  • Mono/Stereo: Mono
  • Polar Pattern: Cardioid
  • Diaphragm Size: 1.06" (27mm)
  • Frequency Response: 20Hz-20kHz
  • Max SPL: 135dB
  • Output Impedance: 200 ohms
  • Self Noise: 12dB (A weighted)
  • Low Cut Filter: 100Hz
  • Pads: -10dB
  • Tube: 12AX7, 12AU7
  • Color: Green
  • Power Source: External power supply
  • Connector: XLR
  • Weight: 2.6 lbs.
  • Included Accessories: Shock Mount, Wood Case, Flight Case
  • Manufacturer Part Number: GEMINI-II-U

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Customer Reviews

Write your review
Rated 5/5

AMAZING Mic!!!

I couldn't say enough positive things about this mic! It is not cheap but is well worth the price!
It is my favorite microphone out of all of the ones I had (I have about 10 microphones).
This one is my go to for vocals, it is warm but at the same time I feel like it is super crisp, cuts great through the mix!!!
There's something about it that just gives a great boost to the high frequencies!!
It is a delicate and heavy mic, keep that in mind, you'll want to place it in a big solid stand!!
Overall, I couldn't be happier with this microphone!
Music background: latin grammy nominated audio engineer
Rated 5/5

AMAZING Mic!!!

I couldn't say enough positive things about this mic! It is not cheap but is well worth the price!
It is my favorite microphone out of all of the ones I had (I have about 10 microphones).
This one is my go to for vocals, it is warm but at the same time I feel like it is super crisp, cuts great through the mix!!!
There's something about it that just gives a great boost to the high frequencies!!
It is a delicate and heavy mic, keep that in mind, you'll want to place it in a big solid stand!!
Overall, I couldn't be happier with this microphone!
Music background: latin grammy nominated audio engineer
Rated 5/5

Amazing mic!

The sE Gemini II is an amazing mic. I'm not gonna say "for it's price" because this is truly an awesome valve studio mic that fits in the category of top mics! I have used it on acoustic guitar as well as vocal sources. I get a great sound right off the bat and don't have to work hard to get it sounding great as the recordings sound great already!
Rated 5/5

Great and big sounding mic

The biggest sounding mic I ever tried on acoustic guitar! Full of clear detail, a great doze of tube sound but not in an exaggerated way like some mics do and kill the detail and strangely the most 3 dimensional sounding mic I ever seen after using many mics that cost triple the price of this one.
Music background: audio engineer
Rated 5/5

Perfect for vocal

i just test this beautiful lady for baritone and tenor vocals.. just amazing! one of the best mic for vocal i ever seen
Music background: record engineer,singer,composer&consert pianist

Hear from a Sales Engineer

What Do Our In-house Gear Experts Think?

Carson McClain

The sE Electronics Gemini II is a serious mic for the modern recording engineer! Get the massive warmth you want from vintage and the clarity of modern mics all in one package. Two tubes in one mic, oh my!
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