Gemini Sound GPSS-650 MKII is a portable powered PA speaker designed to deliver professional-quality sound for performances, presentations, worship services, classrooms, and events. Featuring a 400W Class D bi-amplified system with a 6.5-inch woofer and 1.35-inch high-frequency driver, it provides clear vocals, balanced mids, and powerful low-end response. Despite its powerful output, the compact design and ergonomic handle make it easy to transport and set up wherever sound reinforcement is needed.

The GPSS-650 MKII includes a built-in 3-channel mixer with dedicated gain controls, EQ, and reverb on channels 1 and 2 for flexible audio adjustment. Two XLR/1/4-inch combo inputs support microphones, instruments, and line-level sources

Built for reliable portable operation, the GPSS-650 MKII features an 11.1V lithium-ion rechargeable battery that provides up to 10 hours of playback and recharges in approximately 4 hours.

Key Features

• 400W Class D bi-amplified system delivers powerful full-range sound.
• 5" woofer and 1.35" high-frequency driver provide clear audio.
• 3-channel mixer with EQ and reverb for versatile sound control.
• Bluetooth 5.2 with TWS linking for wireless stereo pairing.

Ideal For

• Live performances and solo musicians.
• Public speaking and presentations.
• Houses of worship and church services.
• Classrooms and educational events.
• Small venues and coffee shops.
• Outdoor events and community gatherings.
• Busking and portable PA applications.
• Fitness instructors and trainers.
• Karaoke and entertainment events.
• Mobile DJs and event hosts.

What's in the Box

• GPSS-650 MKII PA Speaker.
• Wired Microphone.
• IEC Power Cable.
• User Manual.

Inputs & Outputs

• 2 × XLR/1/4" Combo Inputs (Line/Mic/Guitar Selectable).
• 1/4" Auxiliary Line Input.
• 1/8" (3.5mm) Auxiliary Line Input.

Frequently Asked Questions

How much power does the Gemini GPSS-650 MKII provide?

 It delivers 400W of Class D bi-amplified power.

How long does the battery last?

 The rechargeable lithium-ion battery provides up to 10 hours of operation.

Does it have Bluetooth?

Yes, it features Bluetooth 5.2 with up to 32 ft / 10m wireless range.

Does it include a microphone?

Yes, a wired microphone is included

Full Technical Specifications

Audio Performance

System Type	Active PA Speaker
Amplifier Type	Class D Bi-Amplified
Total Power	400W
LF Driver	6.5" Woofer with 1" Voice Coil
HF Driver	1.35" High-Frequency Driver
Frequency Response	50Hz–20kHz
Maximum Peak SPL @ 1 Meter	106dB
Mixer	3-Channel Mixer
Inputs	2 × XLR/1/4" Combo, 1/4" Aux, 1/8" Aux, OTG Audio In
Input Modes	Line/Mic/Guitar Selectable
Outputs	Balanced XLR Line Out, OTG Audio Out
Bluetooth	Bluetooth 5.2
Wireless Range	Up to 32 ft / 10m
TWS	Supports wireless speaker linking
Signal Processing	EQ and Reverb on Channels 1 and 2
Battery	11.1V / 6A Rechargeable Lithium-Ion
Battery Playtime	Up to 10 hours
Battery Charge Time	Approximately 4 hours
USB Charging	USB-A 5V/2A
Enclosure Material	Polypropylene (PP)
Mounting Options	Speaker stand mount and tilt-back floor monitor

Connectors

Combo Inputs	2 × XLR/1/4"
Auxiliary Input	1 × 1/4"
Auxiliary Input	1 × 1/8" (3.5mm)
Audio Port	USB-C OTG
Output	1 × Balanced XLR Line
Output	1 × USB-A 5V/2A Charging
Bluetooth	5.2 Wireless Connectivity

Power & Operation

Power Output	400W Class D bi-amplified system.
Battery	11.1V / 6A rechargeable lithium-ion battery
Battery Life	Up to 10 hours of operation
Charging Time	Approximately 4 hours
Device Charging	USB-A 5V/2A output
Mixer	EQ and reverb on Channels 1 and 2
Wireless	Bluetooth 5.2 with TWS speaker linking
OTG Audio	USB-C OTG supports audio input/output for live streaming and recording

Dimensions & Weight

Unit Dimensions	11.22" L × 9.57" W × 13.19" H
Unit Weight	15.87 lbs (7.2 kg).
Gift Carton Dimensions	13" L × 11.15" W × 15.36" H.
Gift Carton Weight	18.08 lbs (8.2 kg).