JBL 306P MKII Review: Ranked #41 of 68

Last updated: October 1, 2026

The JBL 306P MKII ranks #41 out of 68 total Large Size Powered Bookshelf Speakers for sound quality. See all Powered Home rankings for every top pick.

Brand: JBL

Prices on this page were last checked October 1, 2026 at 6:23 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

As an eBay Partner, we may be compensated if you make a purchase.

#41 JBL 306P MKII: $398 per pair B&H Photo Video eBay

Pros: A 6.94 ideal-subwoofer score and 46.9Hz measured -3dB extension make this a useful affordable nearfield monitor. The waveguide supports broad horizontal listening coverage, and basic boundary controls help with setup. Measured bass extension of 46.9Hz (-3dB).

Cons: The 3.4dB response span from 300Hz to 5kHz is less even than the 308P MKII’s, with midrange resonances affecting neutrality. Hiss can matter at a quiet desk, while bass distortion limits demanding playback. A subwoofer improves bandwidth but does not remove the midrange irregularities. A narrow dip around 1.6kHz shows in the on-axis and listening-window curves.

How it compares: Just above it: Klipsch The Nines - $801 more, 128W more output power. Just below it: Sigberg Audio Manta - $32021 more, 488W more output power.

AES InputNo
Amplifier Power112W total
AppNo
Aux InputNo
Bass Extension (-10dB)38.6Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)46.9Hz (measured, Audio Science Review)
BluetoothNo
Coaxial InputNo
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)
HDMI InputNo
InputsXLR, 1/4” TRS
Optical InputNo
RCA InputNo
Spinorama Preference Score5.06
Spinorama Preference Score with Perfect Sub6.94
TRS InputYes
USB InputNo
Weight13.4 lbs (6.1 kg) each
XLR InputYes

More JBL speakers →

Questions about the JBL 306P MKII? Ask other owners on r/Powered_Speakers.