The JBL KS308 is a passive 8-inch, 2-way professional loudspeaker designed primarily for karaoke (KTV), bars, lounges, restaurants, and small event venues rather than large outdoor PA systems.
Key specifications:
8-inch woofer + dual 1-inch silk dome tweeters
Power handling:
150 W Continuous
300 W Program
600 W Peak
Frequency response: 78 Hz – 18 kHz
Frequency range: 70 Hz – 20 kHz
Sensitivity: 86 dB
Impedance: 8 Ω
Maximum SPL: 110 dB (116 dB peak)
Weight: 8.1 kg
Passive speaker (requires an external amplifier)
Sound quality
The KS308 is known for:
Clear vocals with good speech intelligibility.
Smooth, crisp high frequencies from its dual tweeters.
Decent bass for an 8-inch cabinet, though a subwoofer is recommended for deep bass.
Best performance indoors for karaoke and background/live music.