JBL 308P MKII 8″ Powered Studio Monitor

95 out of 100. Incorporating 700+ ratings and reviews.
JBL Professional
JBL 308P MKII 8″ Powered Studio Monitor

Gearank Recommendation

The 308P MKII appeared on our recommended list for Studio Monitors from September 2020 until February 2022 when it was out-ranked by higher rated models in its price category.

Although this was previously on our recommended list, there are now more highly rated options available which you can see in our guide to The Best Studio Monitors.


As a successor to the LSR308, the 308P MKII features the same waveguide profile as seen on their 7 Series and M2 Master Reference Monitors.

Another step up from the previous generation is the use of upgraded transducers and new boundary EQ controls in the back.

The 308P is a natural evolution of the critically acclaimed LSR 308. With a more refined frequency response building on its predecessor’s clear-sounding signature, the 308P is a great pick for small to medium studios.

JBL 308P MKII Frequency Response Chart

JBL 308P MKII Frequency Response Chart

Tech Specs

  • Driver: 8″ Woofer, 1″ Dome Tweeter
  • Amplifier: 112W Class D (56W LF, 56W HF)
  • Inputs: 1 x XLR, 1 x 1/4″ TRS
  • Frequency Response:45Hz-20kHz (±3dB)
  • Enclosure: Rear Ported
  • Controls: Sensitivity, Boundary EQ, HF Trim
  • Dimensions: 16.5″ x 10″ x 12.1″
  • Weight: 20.73 lbs.

Rating Source Highlights

Website Source *Rating Value
Mix Online Mike Levine 94/100
Audio Science Review amirm 90/100
*Displayed values are prior to the Gearank Algorithm’s adjustments it makes when evaluating the source.

About the Author

Other speaker types are covered elsewhere here on Gearank, including Passive PA Speakers.