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JBL LSR4328P - Single

Bi-amplified monitor with JBL DSP-enabled RMC Room Mode Correction system

Product Description

The JBL LSR4328P features RMC™ (Room Mode Correction), JBL's exclusive technology that automatically analyzes and corrects the response of each speaker in the room for absolute accuracy at the mix position.


  • Advanced Linear Spatial Reference design ensures flatter-off-axis response for greater clarity at the mix position
  • RMC™ Room Mode Correction provides electronic control of room modes
  • Integrated bi-amplification with factory calibrated sensitivities
  • Silk dome transducer with Elliptical Oblate Spheroidal waveguide for precise pattern control
  • Magnetically shielded transducers minimize interference when used in close proximity to video monitors
  • Reinforced enclosure and convenient mounting points for mounted installation
  • Integral handles facilitate ease of positioning


  • Frequency response: +/-1.5 dB: 50 Hz – 20 kHz / -3 dB: 43 Hz – 22 kHz / -10 dB: 35 Hz – 32 kHz
  • SPL / 1m (continuous/peak): 106 dB / 112 dB
  • Transducers: 8 in 438H / 1 in 431G; Self Shielded Neodymium; Motor Structures
  • Sensitivity +4 dBu, -10 dBV: 96 dB / 1m
  • Amplification: 150 w/ 70 w
  • Digital processing: 24 bit, 96 kHz
  • Analog inputs: XLR, 1/4” Balanced, +4 dBu, -10 dBV
  • Digital inputs: AES/EBU XLR, S/PDIF RCA
  • Data connections: Harman HiQnet™ Network, USB, RMC Mic
  • Weight: 13.1 kg (29 lb)
  • Dimensions (H x W x D): 438 mm x 267 mm x 269 mm / 17.25 x 10.5 x 10.6"

Product Specifications

Condition New
Length 10.6 in
Width 10.5 in
Height 17.25 in
Unit Weight 29 lb
Active or Passive Active
Monitor Application Near-Field
Speaker Configuration Two-Way
Driver Sizes 8"
Number of Speakers Single
Input Connectors S/PDIF, 1/4-inch TS, Analog XLR
Amp Wattage 150 W
Frequency Range 1.5 dB: 50 Hz - 20 kHz, -3 dB: 43 Hz - 22 kHz -10 dB: 35 Hz - 32 kHz
Max. SPL 106 dB / 112 dB

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
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Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
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