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JBL LSR308 3 Series 8" 2-Way Powered Studio Monitor

Brand:|Model: LSR308|Part # 245-8124
The impressive clarity of the 3 Series is largely due to JBL's development of a patent-pending waveguide design that enables a neutral response, not just on-axis, but off-axis in the vertical and horizontal planes. Thus, the LSR308 is able to provide an unprecedented price/performance ratio.

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Part # 245-8124
  • Patent-pending Image Control Waveguide delivers incredible detail
  • Long throw 8" woofer for rich bass
  • Woven composite tweeter provides crisp highs
  • Strong, efficient Class D amplifiers built in

Product Details

JBL LSR308 3 Series 8" 2-Way Powered Studio Monitor

While most manufacturers take only a single on-axis measurement of the speaker's performance, this very rarely tells the true story of how it will sound in your room. JBL's LSR (Linear Spatial Reference) design criteria requires 72 (seventy-two) measurements yielding more than 1,200 times more data than single-axis measurement, enabling JBL to engineer a speaker that "just sounds right" in virtually any working space. With LSR design, 3 Series Studio Monitors deliver astonishing accuracy regardless of the size and shape of your room, so your mixes really hit their mark when heard on a variety of playback systems.

The Image Control Waveguide is a significant factor in the all-around crystal clarity of the LSR308. It was initially developed for JBL's new flagship M2 Master Reference Monitor, and with the introduction of the JBL 3 Series, it is now included for the first time in an affordable, compact reference monitor. 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.

JBL transducers are legendary for their performance. The 3 Series is no exception: the shielded long-throw woofer and its damped, woven composite Neodymium tweeter are designed from the ground up to reproduce the powerful transients and micro dynamics of your mix. These drivers deliver deep, satisfying bass and smooth high frequency response beyond the range of human hearing.

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.

The 3 Series super-efficient Class D amplifiers provide abundant power to deliver the output and dynamic headroom needed for the most demanding production styles, and balanced XLR and 1/4" TRS inputs give you the options you need to connect your 3 Series to any signal source, while maintaining professional signal quality. The -10 dB/+4 dB sensitivity switch ensures compatibility with a broad range of signal sources, allowing you to connect the 3 Series to high output professional gear without any danger of input overload. LF and HF "TRIM" switches for both the low and high frequencies give you excellent control over the 3 Series sound in your room. Use these to fine-tune the amount of bass and treble you hear to compensate for room acoustics, program material and your personal taste.

Prior to becoming a production-ready design, each 3 Series model is subjected to JBL's grueling 100 hour power test, in which the speaker is required to play continually - at full output - for 100 hours without failure. This demanding test ensures your 3 Series LSR308 will deliver years of reliable performance.

Specifications: • Frequency response: 37 Hz - 24 kHz • Output: 112 dB SPL (C-weighted, peak) • Amplification: 56 watts LF; 56 watts HF • Inputs: XLR, 1/4" balanced • Weight: 18.9 lbs. • Dimensions: 16.5" x 10" x 12.1". 

Product Specifications
  • Speaker TypeActive / Powered
  • Speaker Configuration2-Way
  • Woofer Size8"
JBL LSR308 3 Series 8" 2-Way Powered Studio Monitor
  • BrandJBL Professional
  • ModelLSR308
  • Part Number245-8124
  • UPC050036904612
  • Product CategoryStudio Monitors
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight22.4500 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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JBL LSR308 3 Series 8" 2-Way Powered Studio Monitor
JBL LSR308 3 Series 8" 2-Way Powered Studio Monitor is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from The 1st choice for accuracyThese speakers are some of the most accurate around regardless of the price. I base this on the measurement methods recommended by Dr. Earl Geddes, and the data is posted on his web site I recently recorded a choral concert at the Hill auditorium in Ann Arbor, MI using a coincident pair of AKG C414B-ULS mikes into a Tascam DR-680. Listening through the JBL LSR-308s was stunningly close to being there - the closest I've heard so far.There is one small caveat; although the internal sound card of my computer had adequate levels to drive the speakers directly, I could not eliminate the processor noise. A proper interface with balanced outputs is required for serious audio editing.
Date published: 2015-06-05
Rated 5 out of 5 by from Nice!Good looking speaker. Bought only one to review. Plays nice, crystal clear.Paint job is a bit thin and comes off really easy. Just be careful. Set it in place and leave it alone. Will be buying another for my HT 7.1 as my side or rear speakers. A bit expensive but I was going for clarity as distortion is distracting while watching a movie. Nice tweeter, a soft dome mounted in an Econowave horn.
Date published: 2014-04-07
  • 2016-02-12T06:20CST
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Product Q&A

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JBL LSR308 3 Series 8" 2-Way Powered Studio Monitor

Is there for a single speakers or a pair of speakers?

Asked by: BrianLev
These speakers are sold individually.
Answered by: MattP
Date published: 2014-07-22
  • 2016-02-12T07:09CST
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