sE Electronics Gemini II Dual-Tube Condenser Microphone

sE Electronics Gemini II Dual-Tube Condenser Microphone

The sE Electronics Gemini II is a true flagship—a unique dual-tube large-diaphragm condenser microphone designed to deliver unprecedented audio depth, warmth, and detail. The uniqueness of this microphone lies in its innovative circuit: instead of the usual single-tube and transformer combination, the Gemini II uses two different vacuum tubes. The first (12AX7) tube operates in the input stage to provide rich, classic analog warmth, while the second (12AU7) tube replaces the traditional output transformer. This allows the microphone to retain a classic tube sound character while ensuring crystal-clear high frequencies and a highly accurate, deep low-end response.

This design makes the Gemini II one of the biggest and widest-sounding microphones on the market, ideal for lead vocals that need to stand out in a mix. The -10 dB attenuation pad and 150 Hz low-cut filter switches integrated into the microphone body increase versatility when recording different sound sources, from intimate vocals to massive drum room sounds. The microphone is bundled with its custom external power supply unit, a robust shock mount, and arrives in a premium aluminum flight case.

Key Features

• Unique dual-tube (12AX7 and 12AU7) design for exceptional tone and detail.
• Transformerless output design via the 12AU7 tube for transparent high frequencies.
• Hand-crafted 1 1/4" gold-sputtered true condenser capsule.
• Switchable -10 dB attenuation pad and 150 Hz low-cut filter.
• Premium bundle including an external power supply and a heavy-duty aluminum flight case.

Technical Specifications

• Manufacturer: sE Electronics.
• Model: Gemini II.
• Type: Dual-Tube Condenser Microphone.
• Capsule: Hand-crafted 1 1/4" True Condenser.
• Tube Complement: 1x 12AX7 / ECC83, 1x 12AU7 / ECC82.
• Diaphragm: Gold-sputtered mylar.
• Polar Pattern: Cardioid.
• Frequency Range: 20 Hz – 20 kHz.
• Sensitivity: 40 mV/Pa (-28 dBV).
• Electrical Impedance: 200 Ohms.
• Max SPL: 135 / 145 dB (0 / -10 dB pad).
• Low-Cut Filter: 150 Hz, 6 dB / Oct, switchable.
• Powering: External power supply unit (included).
• Connectivity: 8-pin cable (between mic and power supply), standard 3-pin XLR plug from the power supply unit.
• Mic Dimensions: Diameter – 80 mm (3.15 in.), Length – 220 mm (8.66 in.).
• Floor Box Dimensions: 186 x 157 x 81 mm.
• Weight: 1180 g (microphone), 1970 g (power supply unit).
• Product Code: GEMINI-II

Included in the Box

• 1 x sE Electronics Gemini II microphone.
• 1 x Custom external power supply.
• 1 x Custom shock-mount.
• 1 x 8-pin microphone cable.
• 1 x IEC power cable.
• 1 x Aluminum flight case.

Best For

• Professional vocalists and voice actors looking for maximum sonic "size," intimacy, and tube warmth.
• High-end recording studios wanting a flagship-level microphone with a distinct sonic character.
• Exceptional acoustic instrument recordings, such as grand piano, acoustic guitar, or brass, where precise detail without harshness is required.

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