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JBL 308P MkII Patented Image Control Waveguide - Image

Patented Image Control Waveguide

For detailed imaging and a broad, room-friendly sweet spot

JBL 308P MkII Next-generation JBL transducers - Image

Next-generation JBL transducers

For optimized transient response and improved linearity

JBL 308P MkII New Boundary EQ settings - Image

New Boundary EQ settings

Compensate for low frequency variants introduced by the environment


JBL 308P MkII 3-position HF Trim switch - Image

3-position HF Trim switch

Adjusts high-frequency output to room acoustics or personal preferences

JBL 308P MkII Patented Slip Stream™ low-frequency port - Image

Patented Slip Stream™ low-frequency port

For superior bass performance at all playback levels

JBL 308P MkII Dual integrated, custom Class-D amplifiers - Image

Dual integrated, custom Class-D amplifiers

Provide 112 watts of power for high output and dynamic range

JBL 308P MkII Flexible connectivity - Image

Flexible connectivity

With balanced XLR and 1/4" TRS inputs, +4dBu / -10dBV input-sensitivity switch and adjustable volume control

JBL 308P MkII Engineered to JBL Linear Spatial Reference design criteria - Image

Engineered to JBL Linear Spatial Reference design criteria

For outstanding accuracy in any working space

JBL 308P MkII Strenuous JBL 100-hour full-power test - Image

Strenuous JBL 100-hour full-power test

Ensures years of reliability

JBL 308P MkII Sleek, modern design - Image

Sleek, modern design

Provides a visual upgrade to any studio

Frequently Bought Together

What the Pro’s are Saying

34th NAMM TEC Awards:

34th NAMM TEC Awards:

“Winner- Best Studio Monitors”

Mix Magazine:

Mix Magazine:

“The 308P MkII provides sound quality and performance that’s well above its price class. You’d be hard pressed to find an 8-inch monitor that offers a better value.”



“Gives detailed imaging and ensures recordings benefit from greater ambiance and depth.”

Music Connection:

Music Connection:

“I am left with an overall great impression of the JBL 308P, you can have a proper 2.1 or 5.1 system for a few dollars as possible it seems. Go for it!”

Specs & Downloads

Item# 308PMKII


Powered 8" Two-Way Studio Monitor

The next-generation JBL 308P MkII powered studio monitor makes legendary JBL performance available to every studio. With the revolutionary JBL Image Control Waveguide and refined transducers, JBL 308P MkII offers stunning detail, precise imaging, a wide sweet spot and impressive dynamic range that enhances the critical listening capabilities of any modern workspace. Featuring patented technologies derived from the JBL 7 Series and M2 Master Reference Monitors and sporting a sleek, modern design, JBL 308P MkII delivers outstanding performance and an enjoyable mix experience at an accessible price.

General Specifications

LF Driver Size
203 mm (8")
HF Driver Size
25 mm (1")
HF Driver Type
Soft dome
1800Hz 4th order acoustic Linkwitz-Riley
Power Configuration
HF Driver Power Amp
56 W Class D
LF Driver Power Amp
56 W Class D
Frequency Response
45Hz – 20kHz (±3dB)
Frequency Range
37Hz – 24kHz (-10dB)
Low Frequency Extension
37Hz (-10dB)
Maximum Continuous SPL
Maximum Peak SPL
Maximum Peak Input Level
+6dBV / +20.3dBu (-10dBV / +4dBu)
System Distortion Criteria
<10% THD at maximum output with full compressor / limiter engagement
Electrical Distortion Criteria
0.2% THD @ 1kHz / 2.83VRMS output; <1% THD @ 1kHz, full rated output
Signal to Noise Ratio
75dBA (A-Weighted), 70dBr (unweighted), relative to 2.83VRMS output
Coverage Pattern
120° x 90° (horizontal x vertical)
HF Trim Control
-2dB, 0dB, +2dB
Boundary EQ
LF Shelf @ 50Hz
AC Input Voltage
100 – 240VAC (±10%), 50 / 60Hz


419 mm (16.5")
254 mm (10")
308 mm (12.1")
Net Weight
8.1 kg (17.87 lbs)


Enclosure Type
Enclosure Construction
15mm MDF
Enclosure Finish
Matte black PVC
Baffle Construction
Injection-molded structural ABS

Audio Input

Analog Input Types
1 x XLR female, 1 x TRS female, balanced
Input Sensitivity
92dB / 1m (-10dBV Input)

What's in The Box?

  • 1 x 308P MkII studio monitor
  • 1 x Power cord
  • 1 x Quick setup guide
  • 4 x Peel-off rubber pads
What's in The Box?

Documents & Downloads

Reviews and Q&A

Customer Reviews

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Product Q&A

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