The science of synchronized sound and light
The product combines acoustic power, photonic timing, and real-time signal processing so light pulses lock to the music instead of merely flashing with volume.
Stroboscopic Light Engine
A 48 LED array generates timed pulses from 1-25 Hz with 0.5 ms flash duration. The system operates below the visual flicker fusion threshold to create the freeze-motion party effect.
Helmholtz Bass-Reflex System
A tuned acoustic chamber and bass-reflex port extend low-end response around 45 Hz while a 5.25 inch long-throw woofer and dual 3 inch drivers deliver room-filling output.
Audio-Reactive Sync
FFT onset detection extracts beat transients and maps spectral energy to LED zones with sub-2 ms latency.
Class-D Power
A high-efficiency amplifier architecture allocates power between audio rails, LED drivers, and the digital core.
Persistence of Vision
Short strobe pulses exploit human temporal perception to make moving dancers and objects appear frozen.
Hi-Fi Signal Chain
DSP, discrete DAC, and active crossover design target clarity rather than simple loudness.
Component-level speaker design
The source concept specifies a custom 4-layer PCB, silicon selected for audio fidelity, power efficiency, wireless performance, and reliable thermal behavior.
4-Layer PCB
Signal, ground, power distribution, and bottom signal layers route DSP data, I2S audio, Bluetooth, LED control, battery management, and amplifier power.
Signal Flow
Bluetooth, USB-C, AUX, and microSD inputs feed conversion, DSP processing, ESS DAC output, Class-D amplification, drivers, and synchronized LED output.
Exploded Assembly
Seven primary subassemblies, three PCBs, drivers, battery pack, ports, chassis, and LED ring form the complete product stack.
Rugged Product Detail
A reinforced portable shell, sealed controls, and protected input doors support outdoor party use.
Portable Form Factor
At 2.8 kg with a carry-friendly footprint, the system is built to move between home, DJ booth, backyard, and outdoor events.
Technical package
A compact system with serious power, broad connectivity, a programmable light engine, and premium audio electronics.
Built for the full audio-visual set
Flash Dance is not just a speaker with lights attached. It treats audio, lighting, power, and control as one synchronized instrument.
MP3 Playback
Play from USB, microSD, or Bluetooth with MP3, FLAC, WAV, and AAC support.
12 Light Modes
Ambient wash, full strobe, party pulse, spectrum chase, custom RGB scenes, and beat-locked routines.
Bass Boost
One-touch low-frequency enhancement adds party impact without losing DSP control.
5-Band EQ
Flat, bass heavy, vocal, electronic, rock, jazz, classical, and custom tuning profiles.
IPX5 Protection
Splash-proof enclosure and sealed port doors help it survive outdoor events.
Power Bank
The internal battery can also charge a phone during a set.
Daisy-Chain
Connect multiple units for synchronized audio and strobe coverage across larger spaces.
DJ Integration
Line-level AUX, mic input, and app-driven choreography support professional party workflows.
Professional show control in a portable speaker
The system is designed for DJs, hosts, and event spaces that need synchronized light and sound without a separate lighting rig.
Party Environment
Atmospheric beams, RGB choreography, and beat-synchronized strobe transform a room into an active dance floor.
DJ Booth Integration
AUX input connects with mixers, controllers, and CDJs while chained units extend both coverage and visual timing.