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The JBL LSR305 5" Two-Way Powered Studio Monitor is a bi-amplified reference monitor with a magnetically-shielded 5" low frequency transducer and 1" soft-dome high frequency transducer. The monitor features JBL's Image Control Waveguide technology for accurate audio reproduction. It also features JBL's Slip Stream port design for improved bass response. The LSR305 is equipped with an LF trim switch and an HF trim switch, as well as dual 41W Class D amplifiers for both drivers. To ensure flexible connectivity, JBL included a balanced XLR input and a balanced 1/4" TRS input, both of which feature dented level control. Other features include JBL's LSR (Linear Spatial Reference) speaker design for accurate audio reproduction and a selectable input sensitivity switch that ensures compatibility with a range of signal sources.
Image Control Waveguide Technology
The Image Control Waveguide was developed for JBL's flagship M2 Master Reference Monitor and has been included in the LSR305. The patent-pending design of the Image Control Waveguide precisely controls the sound emanating from the speaker in the vertical and horizontal planes ensuring the presentation at the listening position is neutral and accurate.
The monitor's long-throw woofer and damped woven composite neodymium tweeter are both designed to reproduce the powerful transients and micro dynamics of your mix. These drivers deliver deep bass and accurate high frequency response beyond the range of human hearing.
JBL's Patented Slip Stream Low Frequency Port Design
JBL's patented Slip Stream low frequency port design works in concert with the woofer to produce deep bass response at all playback levels. The double-flared shape of the port is precisely engineered for greater low-frequency extension and reduced turbulence.
Efficient Class D Amplifiers
The LSR305's efficient 41W Class D amplifiers provide enough power to deliver the output and dynamic headroom needed for the most demanding production styles.
Professional Balanced Inputs
Balanced XLR and 1/4" (6.35mm) TRS inputs give you the options you need to connect the LSR305 to any signal source while maintaining professional signal quality.
Selectable Input Sensitivity
The -10dB/+4dB sensitivity switch ensures compatibility with a broad range of signal sources, allowing you to connect the LSR305 to high output professional gear without any danger of input overload.
LF Trim & HF Trim Switches
LF (Low Frequency) Trim and HF (High Frequency) Trim switches give you maximum control over the LSR305's sound in your room. Use these switches to fine-tune the amount of bass and treble you hear to compensate for room acoustics, program material and your personal taste.
100-Hour Power Test
Prior to becoming a production-ready design, each LSR305 model is subjected to JBL's rigorous 100-hour power test, in which the speaker is required to play continually at full output for 100 hours without failure. This test ensures that all LSR305 speakers will deliver years of reliable performance.
JBL's LSR (Linear Spatial Reference) design requires seventy-two measurements yielding more than 1200 times more data. This enables JBL to engineer a speaker that sounds right in any working space. With LSR design, the LSR305 is able to deliver accurate audio reproduction regardless of the size and shape of your room.
Research & Development
The impressive performance of the LSR305 is a direct result of the technology JBL used to develop their flagship M2 Master Reference Monitor.