Rated Power
200W
Product Overview
The Harmonai HJ-1504 is a 200W high-power portable professional speaker engineered for outdoor performances, event production, and conference sound reinforcement. Its dual-driver configuration—featuring a 15" woofer and 5" tweeter—delivers clear tonal separation and deep, powerful bass response. An optional 12V/14A lead-acid battery enables stable, cord-free operation in locations without AC power.
It supports Bluetooth wireless connectivity and TWS dual-speaker pairing for effortless stereo expansion. A dedicated 3-channel independent mixing system separates music playback, vocal microphone input, and instrument input—each with its own volume, treble, and bass controls for precise sonic shaping.
Speaker Configuration
15" woofer + 5" tweeter
Battery Option
12V/14A lead-acid battery (optional)
Input Interfaces
USB / AUX / MIC / OTG
Wireless Features
Bluetooth / TWS dual-speaker pairing
Channel 1 (Music)
Music volume / Treble adjustment / Bass adjustment
Channel 2 (Microphone)
Microphone volume / Microphone treble / Microphone bass
Channel 3 (Instrument)
Guitar/instrument volume / Instrument treble / Instrument bass / Effect control
Special Features
Microphone priority (automatically lowers background music volume during speech) / Master volume control
Recommended Use Cases
The HJ-1504 excels across diverse professional sound reinforcement scenarios: In outdoor performances, its 200W output and large-diameter woofer cover expansive venues; during conferences and events, the microphone priority function ensures clear, intelligible speech; for street performances, the optional battery eliminates reliance on power outlets; at KTV parties, the 3-channel mixer enables simultaneous playback of backing tracks and live vocals; and in training or education settings, flexible USB/AUX inputs support seamless integration with various audio sources.
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