JBL 306P MKII Specifications and Review

Last updated: August 17, 2026

The JBL 306P MKII ranks #35 out of 39 total Large Size Powered Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: JBL

#35 JBL 306P MKII: $398 Bhphotovideo

Pros: CEA2034 spinorama shows a nice, smooth on-axis response with very good directivity control for a compact 6.5” monitor. Dual 56W Class D amps keep the design affordable at $398 per pair while following JBL’s well-regarded 300-series voicing.

Cons: A narrow but noticeable dip around 1.6kHz shows up in the on-axis and listening-window curves. Distortion runs classically high for this series, reaching around 5% near 200Hz at 96dB SPL. Amplifier hiss is audible from roughly 2 feet away, and the monitor runs out of headroom at higher volumes.

How it compares: Just above it: Focal Twin6 Be - $1802 more. Just below it: Genelec 8341A - $6192 more, 438W more output power.

AppNo
DSPNo
Dimensions16.1"H x 11.2"W x 12.9"D (408 x 285 x 328 mm)
Drivers6.5" woofer, 1" neodymium tweeter
EQNo
Frequency Response39Hz - 24kHz (-10dB) (Manufacturer specified)
Output Power112W total
Weight13.4 lbs / 6.1 kg each

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