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JBL LSR308 Powered Studio Monitor Pair *** 1Left Only***


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Bi-amplified Studio Monitor with Magnetically-Shielded 8” Low Frequency Transducer and 1” Soft-Dome High Frequency Transducer and Image Control Wave Guide. Class-D 56 Watt RMS Amplifier for LF, and 56 Watt RMS Amplifier for HF. Balanced XLR and ¼” TRS Inputs with Detented Level Control, HF and LF Trim Controls.

The JBL 8" long-throw woofer and it's 1" damped woven composite neodymium tweeter are designed from the ground-up to reproduce the powerful transients and micro dynamics of the mix.These drivers deliver impressive 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 at all playback levels,the double flared shape of the port is precisely engineered for greater low frequency extension and reduced turbulence.

These studio monitors are truly a sleeper and a musical surprise to those that want an accurate studio quality sound at an affordable price.JBL's technology and design certainly provide something special for those looking for an affordable studio monitor that is true and accurate.JBL's history in designing studio monitors speaks for itself......they are the many recording studios have JBL  studio monitors as a reference to the true and accurate sound of James B Lansing......a true legend in the hifi industry.

These JBL LSR 308 monitors may be big for a bookshelf monitor  but they deliver more than a bookshelf monitor....they are kinda ....something special!


  • Image Control Waveguide: 
    • The Image Control Waveguide was developed for JBL’s new flagship M2 Master Reference Monitor and 
      with the introduction of the JBL 3 Series, 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 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 impressive deep 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.
  • Big Power, Big Sound - 3 Series efficient Class D Amplifiers provide abundant power to deliver the output and dynamic headroom needed for the most demanding production styles
  • Professional Balanced Inputs - Balanced XLR and 6 mm TRS inputs give you the options you need to connect your 3 Series to any signal source while maintaining professional signal quality.
  • Selectable Input Sensitivity - 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 Trim and HF Trim “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.
  • JBL Professional Reliability - Prior to becoming a production-ready design, each 3 Series model is subjected to JBL’s tough 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 speakers will deliver years of reliable performance.
  • JBL LSR Design - Your Music Needs a Point of Reference - While most manufacturers take only a single on axis measurement of the speaker’s performance, this doesn’t tell how it will sound in your room. JBL’s LSR Linear Spatial Reference design criteria requires seventy-two measurements yielding more than 1,200 times more data, enabling JBL to engineer a speaker that “sounds right” in any working space. With LSR design, 3 Series Studio Monitors deliver superior accuracy regardless of the size and shape of your room, so your mixes “hit their mark” when heard on any playback system.
  • Deep Pedigree - The impressive performance of the 3 Series Reference Monitors is the result of JBL’s development of its flagship M2 Master Reference Monitor. Learn more about the M2 at


  • Low-Frequency Driver: 8" long-throw woofer
  • High-Frequency Driver: 1" Neodymium tweeter
  • Frequency Response: 43Hz - 24kHz
  • Max Peak SPL: 112 dB SPL C-Weighted
  • Amplifier Class: Class D
  • Power Output: 56W (LF) + 56W (HF)
  • HF Trim Control: -2dB, 0dB, +2dB
  • LF Trim Control: -2dB, 0dB, +2dB
  • Input Connectors: Balanced 1/4" TRS, Balanced XLR
  • Dimensions (H x W x D): 16.5" (419mm) x 10" (254mm) x 12.1" (308mm)
  • Weight: 18.9 Lbs. (8.6 Kg.)

*Reprint from Manufacturers Website.

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