Gemini II
The Gemini II is a large-diaphragm cardioid tube condenser microphone with a transformerless dual-tube design and an external power supply. It suits vocals and a wide range of instruments, and also loud sources such as drum overheads and room mics.
- Transformerless dual-tube design: 12AX7 input, 12AU7 output
- Hand-built true condenser capsule, gold-sputtered Mylar diaphragm
- Cardioide pattern, 20 Hz - 20 kHz
- Switchable 150 Hz low-cut and 10 dB pad
- Max SPL 151 dB (0 dB pad), 13 dB equivalent noise
- Supplied in flight case with shock mount and power supply
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The Gemini II is a cardioid condenser microphone built around two vacuum tubes: a 12AX7 / ECC83 in the input stage and a 12AU7 / ECC82 in the output stage. The second tube handles impedance matching that most tube microphones leave to a transformer, so the design is transformerless. It uses a hand-built true condenser capsule with a gold-sputtered Mylar diaphragm and a discrete Class A amplifier.
A switchable 150 Hz low-cut filter (6 dB/oct) and a switchable 10 dB pad extend its use to loud sources. The listed applications are vocals, drums, overheads, room, acoustic and electric guitar, orchestra and strings, piano, woodwinds and brass. Maximum SPL is 151 dB without the pad and 135 to 145 dB with it, at 0.5% THD at 1 kHz.
The microphone connects to a separate power supply box with a multi-pin cable, and the power supply provides the powering, so phantom power is not required. The power supply outputs mic-level signal only, so it feeds a microphone preamp or audio interface. The kit arrives in a flight case with a wooden presentation box, a custom shock mount, the power supply and an IEC power cable.
Video
Parametre
- Značka
- sE Electronics
- Model
- Gemini II
- Kategória
- Štúdio › Mikrofóny
Microphone
- Type
- True condenser, tube
- Capsule
- Hand-built true condenser, 1 1/4"
- Diaphragm
- Gold-sputtered Mylar
- Tube complement
- 1x 12AX7 / ECC83, 1x 12AU7 / ECC82
- Polar pattern
- Cardioid
Audio
- Frequency range
- 20 Hz - 20 kHz
- Sensitivity
- 40 mV / Pa (-28 dBV)
- Max SPL
- 151 / 135 / 145 dB (0 / -10 dB pad) (0.5% THD @ 1 kHz)
- Equivalent noise level
- 13 dB
- Dynamic range
- 122 / 132 dB (0 / 10 dB pad)
- Signal-to-noise ratio
- 81 dB
- Low-cut filter
- 150 Hz, 6 dB / Oct, switchable
- Pad
- 10 dB, switchable
Electrical
- Electrical impedance
- 200 ohms
- Recommended load impedance
- >1k ohms
- Connector
- 3-pin male XLR
Power
- Power
- Supplied by included power supply
Physical
- Microphone diameter
- 80 mm (3.15 in)
- Microphone length
- 220 mm (8.66 in)
- Microphone weight
- 1180 g (41.62 oz)
- Power supply box dimensions
- 186 x 157 x 81 mm (7.32 x 6.18 x 3.19 in)
- Power supply box weight
- 1970 g (69.49 oz)
In the box
- Included
- Gemini II microphone, custom shock mount, 8-pin cable, power supply, IEC power cable
- Packaging
- Wooden presentation box inside a flight case