Gemini GEM-12USB
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- This item is covered for 3 years
Essential Information About the Gemini GEM-12USB Analog Mixer
Essential Information About the Gemini GEM-12USB Analog Mixer
- 12 total inputs to manage multiple sources in rehearsal, home studio, or small sound reinforcement setups.
- 4 microphone preamps with phantom power to connect dynamic or condenser microphones according to your setup.
- Bluetooth streaming convenient for playing back tracks, interludes, or hold music from a compatible device.
- 16 internal effects + 3-band EQ per channel to quickly shape a clear and musical mix.
Manufacturer Information
Gemini
https://www.geminisound.com
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Safety manager:
MSC Distribution
Email: infos@msc-distribution.com
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A 12-input mixer designed for everyday versatility
The Gemini GEM-12USB falls into the category of compact analog mixers focused on performance and ease of use. Its small size makes it easy to integrate on a control desk, home studio furniture, or rehearsal corner, while maintaining a full feature set to build a solid mix: mic inputs, stereo inputs, effects section, and headphone monitoring. The goal is clear: to provide a reliable and quiet foundation for working quickly without getting lost in menus.
Who it's for and what it's for: rehearsals, content creation, and small gigs
This mixer is aimed at musicians, singers, small bands, DJs, and content creators who need to centralize multiple audio sources in one control point. In rehearsal, you can balance vocals and instruments, apply some EQ to improve clarity, then add an effect to highlight the voice. In broadcast or content contexts, Bluetooth simplifies playing jingles or background music, while the headphone output with dedicated volume helps precisely control your listening level.
Technical specifications
| Type | analog Compact | Rackable | No |
| USB stereo recording / playback | Yes | Headphone output | Yes |
| Number of faders | 13 | ||
| Standard inputs | x12 | LED indicator | two-level |
| Balanced MIC/LINE inputs | x4 | Common-mode rejection | -80 dBu |
| Stereo inputs | x4 | S/N ratio | -82 dB |
| Equalizer | 3 bands per channel with dedicated volume control | Frequency response | 20 Hz - 20 kHz |
| High | 12 kHz, +/-15 dB | THD | less than 0.03 % at 1 kHz |
| Low | 80 Hz, +/-15 dB | MIC input | +60 dBu |
| Internal effects | 16 | LINE input | +30 dB |
| Effects send | on each channel | Stereo input | 300 mW |
| Pan | on each channel | Dimensions | 245 x 230 x 55 mm |
Questions frequently asked
How many microphones can be connected to the Gemini GEM-12USB?
The mixer features 4 balanced MIC/LINE inputs. Phantom power allows the use of condenser microphones as needed.
Does Bluetooth support playback streaming?
Bluetooth streaming enables playback of backing tracks, jingles, or background music from a compatible smartphone, tablet, or computer.
What equalization settings are available per channel?
Each channel has a 3-band equalizer with dedicated volume control. The high and low adjustments affect 12 kHz and 80 Hz respectively, with a range of +/-15 dB. This section helps quickly correct the tonal balance of sources.
Does the mixer have effects for vocals?
16 internal effects are available, with adjustable effects send on each channel. This allows different effect levels between vocals and instruments.
Is it possible to monitor with headphones at a separate volume?
A headphone output with dedicated volume control allows the monitoring level to be adjusted independently from the main output level.



