The JBL 3 Series features two models, the LSR305 5-inch powered studio monitor and the LSR308, 8-inch powered studio monitor. The LSR305 offers a response of 43Hz to 24 kHz and a peak SPL of 108 dB, while the LSR308 features a response of 37Hz to 24 kHz and a peak SPL of 112 dB.
JBL Professional introduced its 3 Series studio monitors in August 2013. The first studio monitor line to incorporate JBL’s patent-pending Image Control Waveguide, 3 Series is designed to deliver professional studio reference monitoring with exceptional imaging and detail in any listening environment at an affordable price. The 3 Series monitors make their show debut at 135th AES
in New York City, booth # T1 (Harman truck).
Leveraging new technology developed for JBL’s flagship M2 Master Reference Monitor launched at Winter NAMM show 2013, the 3 Series features JBL’s Image Control Waveguide enabling the listener to hear greater depth and ambience in recordings. Surrounding the high frequency tweeter, and located directly above the woofer, the waveguide precisely controls the sound emanating from the monitor in the vertical and horizontal planes. With a complex contour employing tiny, meticulously engineered ridges, the waveguide optimizes the phase relationship of the loudspeakers and also the blend of directed and reflecting sound arriving at the listening position.
“Our goal with the 3 Series is to bring a new level of performance and accuracy to the market at most affordable price points,” said Peter Chaikin, Senior Manager, JBL Professional Recording and Broadcast Marketing. “The Image Control Waveguide gives 3 Series a dramatic advantage. It is a remarkable piece of engineering allowing us to deliver a loudspeaker that is more revealing and engaging to listen to. Customers will find, with this waveguide, the 3 Series loudspeakers provide a truly enjoyable listening experience.”
The 3 Series’ long-throw woofer and its damped woven composite tweeter deliver deep bass and smooth high-frequency response beyond the range of human hearing. JBL’s patented Slip Stream low-frequency port design complements 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 provide dynamic headroom.
JBL’s LSR Linear Spatial Reference design criteria requires 72 measurements, yielding more than 1,200 times more data, enabling JBL to engineer a loudspeaker that “sounds right” in any working space. Also, setting 3 Series low and high-frequency trim switches, the user can tailor the loudspeaker’s response to compensate for room acoustics, program material and personal tastes. Each 3 Series model incorporates a range of features to integrate the loudspeakers into different environments including multiple inputs, a detented volume control and an input sensitivity switch for compatibility with professional and consumer equipment.
To ensure reliable performance, 3 Series prototypes were subjected to JBL’s 100-hour power test, in which the loudspeaker is required to play continually at full output for 100 hours without failure.
Bryan Bradley, GM, Harman Professional Loudspeaker Group: “The simultaneous launch of 3 Series Studio Monitors and our new PRX700 portable powered loudspeakers is an expression of our commitment and passion for the audio industry and our ongoing investment in innovation. It gives us great pleasure to present our customers with these new JBL lines developed to take their projects to the highest possible level.”