JBL LSR305P MKII Active Studio Monitor 1 pc

JBL 305P MkII — Studio Monitor with M2-Derived Imaging

The JBL 305P MkII powered studio monitor delivers flagship-grade imaging precision and dynamic range in a compact 5-inch cabinet. Patented technologies lifted from JBL's M2 Master Reference Monitors and 7 Series place this model in a class of its own at the project-studio tier. With a frequency range of 43 Hz to 24 kHz and a maximum peak SPL of 108 dB, the 305P MkII reproduces everything from sub-bass weight to airy high-frequency detail.

What Sets the 305P MkII Apart in Its Class

The Image Control Waveguide, originally developed for JBL's M2 flagship, ports into this compact form factor for a seamless acoustic transition between woofer and tweeter. Supporting the low end, the patented Slip Stream low-frequency port lets the small cabinet move real air without chuffing. Built to JBL's Linear Spatial Reference criteria — 72 measurements taken 360° around each speaker — the 305P MkII delivers a faithful stereo image across a broad sweet spot, even off-axis.

Transducers and Amplification — Power That Translates

Driver and amplifier choices directly shape how a monitor handles transients and dynamic swings. The 305P MkII uses a bi-amplified configuration with a dedicated Class-D amp for each driver.

• LF Driver: 127 mm (5") long-throw woofer — extended excursion for tight, controlled low end
• HF Driver: 25 mm (1") soft-dome tweeter, woven-composite Neodymium — detailed highs with ferrofluid damping
• Bi-amplified power configuration with 30–60 W Class-D amps per driver — separate amplification paths tuned to each transducer

Frequency Response and Headroom — Hear Every Detail

Frequency response and maximum SPL determine how much of the audible spectrum a monitor can reproduce and how loudly it can do so without distortion. The 305P MkII reaches a maximum peak SPL of 108 dB.

• Frequency Range: 43 Hz – 24 kHz (-10 dB) — reaches deep into sub-bass and above the audible threshold
• Frequency Response: 49 Hz – 20 kHz (±3 dB) — flat, neutral window for mix decisions
• Maximum peak SPL of 108 dB — headroom for demanding production styles and loud playback checks

Connectivity and Room Tuning — Fits Any Studio

Connectivity and room-tuning controls decide how easily a monitor integrates into any studio. The 305P MkII ships with balanced XLR and 6.3 mm TRS inputs, switchable input sensitivity, and onboard EQ.

• Inputs: Balanced XLR and 6.3 mm TRS — professional-grade connections for audio interfaces and mixers
• HF Trim Switch: -2 dB / 0 dB / +2 dB — adjusts high-frequency response to taste or room acoustics
• Boundary EQ with LF shelf at 50 Hz (-3 dB / -1.5 dB / 0 dB) — counteracts low-end buildup near walls or on a desktop

Who Should Choose the 305P MkII

This model is the right choice for project-studio engineers, bedroom producers, podcasters, and content creators who need reference-grade imaging and headroom without flagship pricing. Music producers benefit from the broad sweet spot and neutral response, which translate mixes reliably to consumer playback. Pairing with the matching LSR310S subwoofer extends the system into full-range territory.

JBL — 70 Years of Acoustic Engineering

The 305P MkII draws on more than 70 years of JBL acoustic expertise, building on the original 3 Series — widely adopted by professionals in music, film, post, and broadcast. Every unit must pass JBL's 100-hour full-power test before leaving the factory.