JBL 305P MkII Professional Studio Monitor

JBL 305P MkII Professional Studio Monitor



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JBL 305P MkII Professional Studio Monitor
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JBL's original 3 Series gained a well-earned reputation for outstanding quality and value, offering both professionals and hobbyists alike a professional quality broadcast/production experience at a reasonable price.

5" Two-Way Powered Studio Monitor

Now the new-and-improved 3 Series MkII is here, starting with the JBL 305P MkII - a compact powered studio monitor, which makes that legendary JBL performance available to every studio.

Whether you own a home production studio, or you're a hobbyist/prosumer wishing to engage in music production, podcasting, vlogging, YouTube and more, if your studio space is limited then the JBL305P MKII represents the ideal solution for you!

Why the MkII?

Subsequent to their release, the original JBL 3 Series gained a reputation for their high quality to cost ratio, which saw an awful lot of hobbyists and budding professionals using them for their work. However, never one to rest on their laurels, JBL continually look to improve upon what came before, and so have included a handful of new features and improvements in a successful attempt to one-up themselves.

Such upgrades include those final improvements to the transducers, the inclusion of a much-requested feature, and application of the latest manufacturing learning. All of this and more has gone into producing a brand new edition of a popular studio monitor, with improved looks and sound being added to the best qualities from the original.

Patented Image Control Waveguide

Originally developed for JBL's flagship M2 Master Reference Monitor, the groundbreaking Patented Image Control Waveguide allows you to reveal impressive details, ambience and depth into your mixes. Offering an acoustically seamless transition between the low-and high-frequency transducers, this technology provides an immersive soundstage with precise imaging - you know that you're going to get a crystal-clear representation of your mix with the JBL 305P MkII.

Good Monitors Mean a Good Mix

With its new and improved 3 Series transducers, the JBL 305P MkII provides you with breathtaking performance capabilities.

Thanks to the long-throw 5" woofer and the patented JBL Slip Stream low-frequency port, you get to hear deep, accurate and tightly controlled bass frequencies. On top of this the woven-composite 1" Neodymium tweeter will throw soaring, immaculately detailed highs into the mix too.

Featuring a faster HF transient response, greater low frequency linearity, and lower harmonic distortion than previous models , the JBL 305P MkII is a studio monitor you can trust!

Plug And Play Functionality

No matter how simple or demanding your production needs, the JBL 305P MkII is ready for it right out of the box. Thanks to its dual integrated Class D power amplifiers (custom designed for each transducer), you get a generous dynamic range whatever your project.

Whether your needs revolve around music production, podcasting, vlogging, or even cinematic sound design, the JBL 305P MkII allows you to hear exceptional detail at any volume, even at peak SPLs. Just plug in, power on, and you're ready to go!

Versatile, Flexible, and Reliable

Thanks to the innovative new Boundary EQ and 3-position HF Trim switch, you can adjust your JBL 305P MkII to perfectly match the dimensions and acoustics of almost any room you choose to work in. Add to this the balanced XLR inputs, adjustable input sensitivity, and that world-renowned JBL reliability, and you have yourself a powered studio monitor that suitable for any situation, in any environment.

Order Yours Today

With more than seven decades of expertise behind them, it's clear that JBL are still pushing the boundaries of acoustic excellence, so don't delay and order your very own JBL 305P MkII Professional Studio Monitor today! Order can be made Online, In-Store, or by contacting our Online Sales Team directly!

JBL 305P 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 lowfrequency 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

JBL 305P MKII Technical Specs

General Specifications

  • LF Driver Size: 127 mm (5")
  • HF Driver Size: 25 mm (1")
  • HF Driver Type: Soft dome
  • Crossover: 1725Hz 4th order acoustic Linkwitz-Riley
  • Power Configuration: Bi-amplified
  • HF Driver Power Amp: 41 W Class D
  • LF Driver Power Amp: 41 W Class D
  • Frequency Response: 49Hz – 20kHz (±3dB)
  • Frequency Range: 43Hz – 20kHz (-10dB)
  • Low Frequency Extension: 43Hz (-10dB)
  • Maximum Continuous SPL: 94dB
  • Maximum Peak SPL: 108dB
  • 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


  • Height: 298 mm (11.7")
  • Width: 185 mm (7.3")
  • Depth: 231 mm (9.1")
  • Net Weight: 4.73 kg (10.43 lbs)


  • Enclosure Type: Ported
  • 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)
More Information
Manufacturer JBL
SKU 181717
Shipping Weight (kg) 6.000000
Warranty 2 Years
SPL 94dB (RMS), 108dB (Peak)
Tweeter 1" Tweeter
Power Output 2 x 41 W Class D
Woofer Size 5" woofer


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note, we cannot accept returns of:

  • Special/Custom Orders - Any order that is custom or has been personalised.
  • Products with Hygiene Seals - Microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have broken the hygienic seal on the packaging.
  • Software & Media - Any software or media that has been opened or registered via physical or digital means.

Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.