Gemini GPSS-650MKII - Portable 400W Active PA Speaker

The Gemini GPSS-650MKII active speaker is a versatile, portable PA system that combines 400W of power, a compact design, and modern wireless connectivity. Designed with musicians, educators, live streamers, and event organizers in mind, this speaker delivers full-range sound in a small enclosure that can be taken literally anywhere. Thanks to its built-in lithium-ion battery providing up to 10 hours of runtime and a 3-channel mixer with reverb, the device is suitable for both small concert halls and outdoor events or social media live streams.

Product Features

400W Class D power with bi-amplification ensures clean, full-range sound with clear bass and crystal-clear vocals. 3-channel mixer with dedicated knobs for gain, tone control, and reverb on channels 1 and 2 allows full control over the sound of each source. Bluetooth 5.2 with TWS (True Wireless Stereo) function enables wireless connection of two speakers in stereo mode, significantly widening the soundstage during larger events. USB-C OTG port allows live audio transmission directly to a phone, making this speaker an ideal tool for content creators, while the USB-A port (5V/2A) enables charging a smartphone or tablet from the speaker. Universal mounting options - on a standard speaker stand or in a tilted position as a floor monitor.

Professional Capabilities in a Compact Enclosure

The Gemini GPSS-650MKII is equipped with a 6.5-inch coaxial speaker with a 1-inch voice coil and a 1.35-inch high-frequency driver, ensuring a full frequency range from 50 Hz to 20 kHz. This configuration guarantees excellent phase coherence and even sound distribution throughout the room. The maximum sound pressure level reaches 106 dB (measured at a distance of 1 meter), allowing the speaker to easily fill a café, classroom, small concert hall, or sacred space with sound. The built-in signal processor offers tone and reverb control on channels 1 and 2, allowing you to adjust the sound to the character of the performance - from dry, studio-like sound to a spacious, stage-like atmosphere with reverb effects.

The 3-channel mixer built into the speaker is the true command center for sound. Channels 1 and 2 are equipped with gain, EQ, and reverb controls, allowing precise shaping of the microphone and instrument sound. The third channel handles signals from aux and Bluetooth inputs, enabling quick playback of backing tracks or background music. With this solution, a single speaker is sufficient for a small concert - without the need for an external mixer.

The input set includes two combo XLR/TRS jacks with line/microphone/guitar mode selection via a switch, as well as aux inputs on 1/4" and 1/8" jacks and an OTG input for digital audio transmission. This allows connection of dynamic microphones, electric guitars, keyboards, music players, or smartphones to the speaker. The balanced XLR output allows connection of another speaker in a chain or sending the signal to an external mixer, facilitating system expansion with additional components. The TWS (True Wireless Stereo) function enables pairing two GPSS-650MKII speakers wirelessly, achieving true stereo sound imaging without the need for cables between devices.

The built-in 11.1 V / 6 Ah lithium-ion battery provides up to 10 hours of continuous operation on a single charge, and a full battery charge takes only 4 hours. This makes the speaker fully self-sufficient during outdoor events, workshops, or street performances where access to mains power is limited. Additionally, the 5V/2A USB-A port allows charging a phone or tablet directly from the speaker, which is extremely useful during long streaming sessions or recordings.

Applications

Thanks to its versatility and compact size, the Gemini GPSS-650MKII speaker will work well in many different scenarios:

• Cafes and restaurants - background music or live performances
• Small concert halls and clubs - stage monitoring
• Classrooms and lecture halls - voice amplification for the presenter
• Sacred spaces - sound reinforcement for services and meetings
• Live streaming (TikTok, Instagram, YouTube) - streaming with OTG port
• Floor monitor - tiltable design for stage monitoring

Detailed Technical Specifications

• Type: active speaker (bi-amplified)
• Amplifier: Class D, bi-amplified
• Low-frequency speaker: 6.5" with 1" voice coil
• High-frequency speaker: 1.35"
• Total power: 400 W
• Frequency response: 50 Hz - 20 kHz
• Maximum SPL: 106 dB (1 m)
• Inputs: 2 x combo XLR/TRS (line/mic/guitar), aux 1/4" and 1/8", OTG audio in
• Outputs: balanced XLR line out, OTG audio out
• Bluetooth: 5.2 with TWS function
• Wireless range: 10 m (32 feet)
• Signal processor: EQ and reverb (channels 1 and 2)
• Battery: 11.1 V / 6 Ah lithium-ion
• Battery runtime: up to 10 hours
• Charging time: 4 hours
• USB charging: USB-A port (5V/2A)
• Dimensions: 285 x 243 x 335 mm
• Weight: 7.2 kg

Materials and Construction

The speaker enclosure is made of durable polypropylene (PP), which provides high resistance to mechanical damage, scratches, and environmental factors during transport and outdoor use. This material also features excellent acoustic properties, minimizing unwanted enclosure resonances. The compact dimensions of 285 x 243 x 335 mm and weight of just 7.2 kg make the device easy to carry under the arm, and the ergonomic handle facilitates transport. Additionally, the protective grill safeguards the speakers from accidental damage, and rubber feet ensure stability on any surface. The design allows mounting on a standard 35 mm threaded speaker stand and setting in a tilted position as a floor monitor, increasing the versatility of applications.

Package Contents

• Gemini GPSS-650MKII Active Speaker
• Wired Microphone
• IEC Power Cable
• User Manual

Summary

The Gemini GPSS-650MKII is an excellent choice for musicians, teachers, live streamers, and anyone who needs portable, self-sufficient sound reinforcement with professional quality. Long battery life, a versatile 3-channel mixer, Bluetooth 5.2 with TWS connectivity, and a compact, durable enclosure make this active speaker ready for any challenge - from intimate performances in a café, to classroom lessons, to outdoor events and live streams. It is an investment in reliable sound that you can take everywhere.