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JBL LSR305 MKII Studio Monitor - Single

by JBL
£150.00 inc. vat
£125.00 ex. vat
Please contact us for availability.


The JBL LSR305 MKII is the smallest of the 3 Series studio monitors. The design of the 305P MkII leverages over 70 years of JBL acoustic expertise to create a refined studio monitor at an outstanding value. 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.

Since their release, word has spread on the quality and value found in the original JBL 3 Series, resulting in wide adoption from hobbyists to high-end professionals working in music, film, post, and broadcast production worldwide. With such an obvious hit, you might ask, "Why update now?" On every project at JBL, there’s always a handful of features or improvements that the engineering team can’t squeeze in before going to production. 3 Series was no different. When the opportunity presented itself, JBL decided to make those final improvements to the transducers, add a frequently-requested feature, and apply the latest manufacturing learnings. The result—a new edition of this popular studio monitor that retains the best qualities of the original, but now looks better, sounds better, and provides transparent sound in even more production environments.

JBL LSR305 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 82 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: 203mm (5")
  • Hf driver size: 25mm (1")
  • Hf driver type: soft dome
  • Crossover: 1725hz 4th order acoustic linkwitz-riley
  • Input sensitivity (-10dB v input): 92dB / 1m
  • Power configuration: bi-amplified
  • Hf driver power amp: 41w, class-d
  • Lf driver power amp: 41w, class-d
  • Frequency response (±3dB ): 49hz – 20kHz
  • Frequency range (-10dB ): 43hz – 24kHz
  • Low frequency extension (-10dB ): 43hz
  • Maximum continuous spl: 94dB 
  • Maximum peak spl: 108dB 
  • Maximum peak input level (-10dB v / +4dBu): +6dB v / +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: 75dB a (a-weighted), 70dB r (unweighted), relative to 2.83Vrms output
  • Horizontal x vertical coverage: 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
  • Cabinet dimensions (h x w x d): 298 x 185 x 231 mm (11.75" X 7.3" X 9.9")
  • Display carton (h x w x d): 354 x 244 x 299 mm (13.9" X 9.6" X 11.8")
  • Shipping carton (h x w x d): 373 x 260 x 315mm (14.7" X 10.2" X 12.4")
  • Net weight: 4.73 Kg (10.43 Lbs)
  • Shipping gross weight: 5.72 Kg (12.61 Lbs)