The Gemini Sound GEM-12USB is a compact 12-channel mixer built for the working setup that needs to do it all: live bands, karaoke nights, podcast interviews, houses of worship, or a business install where space is tight. You get four mic preamps with phantom power, 3-band EQ on every channel, onboard effects, and Bluetooth streaming from your phone, all in a footprint small enough to fit on a crowded desk. Gemini has been making mixers since 1974, and this one keeps that tradition going: real features, honest price, no fuss.

Key features

12 channels of clean routing. Plug in your band, your mics, your backing tracks, and your phone all at once. Four XLR mic inputs handle the vocals and instruments, with plenty of line inputs left over for everything else.
Phantom power for your condenser mics: +48V across four channels means your studio mics work the way they’re supposed to. Great for podcasts, vocal recording, or any setup where sound quality matters.
Shape every channel: 3-band EQ (high, mid, low) and dedicated volume on every input lets you dial in each source individually. No more compromises when the guitar is too bright or the kick needs more thump.
Onboard effects built in. Reverbs, delays, chorus, and flanger are ready to go without plugging in outside gear. Add space to vocals, thicken up a guitar, or keep it dry. Your call.
Bluetooth and USB playback. Stream backing tracks from your phone over Bluetooth or plug in a thumb drive for MP3 and WAV playback. Perfect for karaoke hosts, solo performers, and anyone who needs music between sets.
What’s in the box
GEM-12USB mixer
USB-C power cable
User manual

Specifications

Channels: 12-channel mixer
Inputs: 4 x XLR, 12 x 1/4″, stereo RCA
Outputs: 6 x 1/4″, stereo RCA
Phantom power: 4 channels (+48V)
Bluetooth: Yes
Media player: USB (MP3 and WAV)
FX: Onboard adjustable multi-FX unit (reverbs, delays, chorus, flanger); AUX/FX send
EQ: Hi/Mid/Low per input channel
LED indicators: Power, master meter with clip indicator, +48V
Power: DC 5V / AC 110–240V (USB-C power supply)
UPC: 747705007117

Dimensions

Unit (L x W x H): 8.66″ x 10.04″ x 1.57″ (220 x 255 x 40 mm)
Unit weight: 3 lbs (1.7 kg)
Gift carton (L x W x H): 11.82″ x 14.97″ x 3.35″ (300 x 380 x 85 mm)
Gift carton weight: 4.55 lbs (2.06 kg)
Master carton (L x W x H): 17.72″ x 13.39″ x 24.41″ (450 x 340 x 620 mm)
Master carton weight: 48.73 lbs (22.1 kg)

Price-Flex

Price Flex

Name: Gemini GEM-12USB 12-channel Audio Mixer
Brand: Gemini DJ
SKU: GEMI-GEM 12USB
Availability: InStock

Found a better price elsewhere?

Send us the details and we’ll see if we can match or beat the offer while still providing the service, support and warranty that Bounce Online customers expect.

✔ Trusted South African retailer since 2015
✔ Local warranty and support
✔ Fast nationwide delivery
✔ Competitive pricing on leading brands

Simply complete the form below and we’ll get back to you as soon as possible.

Delivery Exclusions

PLEASE NOTE:

Some products are exceptionally large, heavy or bulky and require specialist freight services. This typically includes items such as large PA speakers, dual 15″ speaker cabinets, dual 18″ subwoofers, flight cases and other oversized or very heavy equipment.

We work hard to keep our prices as competitive as possible and, in most cases, delivery is completely covered by our standard shipping rates. However, for certain oversized items being delivered to regional or outlying areas, the actual courier cost can be significantly higher than standard deliveries. This is also owing to factors completely outside of our control (petrol costs and rising costs of delivery by courier partners)

If this applies to your order, we will always contact you before dispatch to discuss the available options. These may include:

Proceeding with a small additional freight contribution.
Collecting the order from one of our suppliers or a nearby courier depot where available.
Cancelling the order for a full refund if a suitable solution cannot be reached.

Please be assured that we only request an additional freight contribution in exceptional circumstances where the courier cost is substantially higher than normal. Our goal is always to deliver your order at the advertised price whenever possible.

If you’re unsure whether an item may be affected, you’re welcome to contact us before placing your order and we’ll gladly provide a delivery estimate.

Thank you for your understanding and ongoing support!