Skip to content
Free UK Mainland Shipping On Orders over £99 - Got a question? Call 0151-236-7800
Free UK Mainland Shipping On Orders over £99 - Got a question? Call 0151-236-7800

JBL LSR306 MKII Studio Monitor 6.5-inch active bi-amplified studio monitor - Pair

by JBL
Save 20%
Original price £517.99 inc. vat
Current price £414.00 inc. vat
£345.00 ex. vat
Please contact us for availability.

JBL LSR306 MKII - Pair

This pair of JBL LSR306 MKII is a set of bi-amplified active studio monitors that are a result of over 70 years of expertise. These monitors offer outstanding performance and an enjoyable mix experience at an accessible price. With improved transducers, added frequently-requested feature, and the latest manufacturing learnings the 3 series offers stunning detail, precise imaging, a wide sweet spot and an impressive dynamic range. JBL 306P MkII is ready for the most demanding production styles right out of the box. Offering both balanced XLR and 1/4" TRS inputs and a Boundary EQ these monitors will seamlessly integrate into any studio.

Patented Image Control Waveguide
Reveal impressive detail, ambience and depth in your mixes thanks to the groundbreaking JBL Image Control Waveguide. Originally developed for JBL’s flagship M2 Master Reference Monitor, this patented innovation ensures an acoustically seamless transition between the low- and high-frequency transducers and provides an immersive soundstage with precise imaging. Offering a broad sweet spot and neutral frequency response, JBL 306P MkII delivers a crystal-clear representation of your mix—revealing subtle details, even when listening off-axis.

Your Mix is Only as Good as Your Monitors
To help you make the best mix decisions, JBL equipped the 306P MkII with acclaimed 3 Series transducers that now perform even better. Hear deep, accurate and tightly controlled bass thanks to a long-throw 6.5" woofer and the patented JBL Slip Stream low-frequency port. Enjoy soaring, immaculately detailed highs via the woven-composite 1" Neodymium tweeter. JBL engineers took things to the next level with faster HF transient response through fine-tuned ferrofluid damping, and greater low frequency linearity and lower harmonic distortion courtesy of an enhanced woofer design. The result is a studio monitor you can trust—with unmatched peak handling, stunning dynamics and neutral frequency response that’s unbeatable in its class.

Tailored Sound to Fit Your Studio
The dimensions and acoustics of a room can have a major effect on sonic accuracy, and that’s why JBL 306P MkII lets you adjust the response to fit your studio. The new Boundary EQ attenuates the low-end boost that can occur when you place monitors directly on the desktop or near walls. The 3-position HF Trim switch allows you to adjust the high-frequency response of the 306P MkII to tailor it to room acoustics or personal tastes.

Flexible Connectivity
Offering both balanced XLR and 1/4" TRS inputs, and adjustable +4dBu/-10dBV input sensitivity, the 306P MkII offers flexible, professional connectivity options to provide easy setup while maintaining your signal integrity.

JBL LSR306 MKII Features

  • Patented Image Control Waveguide for detailed imaging and a broad, room-friendly sweet spot
  • Next-generation JBL transducers for optimized transient response and improved linearity
  • Patented Slip Stream low-frequency port for superior bass performance at all playback levels
  • Dual integrated, custom Class-D amplifiers provide 112 watts of power for high output and dynamic range
  • New Boundary EQ settings compensate for low frequency variants introduced by the environment
  • HF Trim switch adjusts high-frequency output to room acoustics or personal preferences
  • Flexible connectivity with balanced XLR and 1/4" TRS inputs, +4dBu / -10dBV input-sensitivity switch and adjustable volume control
  • Engineered to JBL Linear Spatial Reference design criteria for outstanding accuracy in any working space
  • Strenuous JBL 100-hour full-power test ensures years of reliability
  • Sleek, modern design provides a visual upgrade to any studio


  • LF driver size: 165mm (6.5")
  • HF driver size: 25mm (1")
  • HF driver type: soft dome
  • Crossover: 1425hz 4th order acoustic linkwitz-riley
  • Ok for use near magnetically sensitive equipment: yes
  • Input sensitivity (-10dbv input): 92db / 1m
  • Power configuration: bi-amplified
  • HF driver power amp: 56w, class-d
  • LF driver power amp: 56w, class-d
  • Frequency response (±3db): 47hz – 20khz
  • Frequency range (-10db): 39hz – 24khz
  • Low frequency extension (-10db): 39hz
  • Maximum continuous SPL: 92db
  • Maximum peak SPL: 110db
  • Maximum peak input level (-10dbv / +4dbu): +6dbv / +20.3Dbu
  • 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 horizontal x vertical: 120° x 90°
  • Analog input types: 1 x xlr female, 1 x trs female, balanced
  • Hf trim control: -2db, 0db, +2db
  • Boundary eq: lf shelf @ 50hz: -3db, -1.5Db, 0db
  • Ac input voltage: 100 – 240vac (±10%), 50 / 60hz
  • Enclosure type: ported
  • Enclosure construction: 15mm mdf
  • Enclosure finish: matte black pvc
  • Baffle construction: injection-molded structural abs