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JBL MRX-512M 12-Inch 2-Way Passive PA Speaker 800W

(12 Reviews)
We apologize, this product is no longer available.
Likely due to either replacement with a newer model or manufacturer discontinuation.
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JBL MRX-512M 12-Inch 400-Watt Speaker

The MRX512M is a premium, utility/monitor speaker. The MRX512M uses a JBL 262H 305 mm (12 in) Differential Drive woofer and a 2408H 375 mm (15 in) annular polymer diaphragm, neodymium compression driver for 400 watts (continuous) power capacity. A 70° x 70° horn provides smooth, even coverage whether used in the vertical (mains) or horizontal (monitor) orientation.

NL4 connectors are provided on both ends of the speaker to keep cable runs tidy on stage when used in the monitor application and for easy access when used on tripods. A passive network provides accurate reproduction throughout the cross-over region.

For use on a tripod or over a subwoofer, JBL's dual angle pole mount is included. This feature allows the speaker to be mounted in a vertical position or with a 10° down tilt for optimum audience coverage.

The enclosure is constructed of quality plywood and coated in JBL's rugged DuraFlex finish. The attractive CNC-machined, 16-gauge steel grille wraps around the sides of the enclosure. The grilles are internally lined with an acoustically transparent screen to provide additional driver protection and give a very professional appearance.

Applications:
  • Speech reinforcement
  • Live performance stage monitoring
  • Reinforcement of vocal and acoustic music
  • High-performance satellite speaker for use with subwoofers
Features:
  • 12" Differential Drive woofer for high-power capacity and very lightweight
  • 15" annular polymer diaphragm compression driver
  • Compact and low-profile for minimal obstruction of audience sight-lines
  • 70° x 70° coverage for even and smooth response on and off axis
  • Dual-angle pole socket for applications requiring tripod mounting
  • Heavy Duty 16 gauge protective screen backed steel grille
  • Tough DuraFlex enclosure finish
Specifications:
  • Frequency Range (-10 dB): 60 Hz - 20 kHz
  • Frequency Response (±3 dB): 90 Hz - 20 kHz
  • Coverage Pattern: 70° x 70° nominal
  • Crossover Mode: Passive
  • Crossover Frequency: 17 kHz
  • Power Rating: 400 with 800 with 1600 W, 2 hrs (IEC standard, full bandwidth pink noise with 6 dB crest factor for specified period)
  • (Continuous/Program/Peak): 350 with 700 with 1400 W, 100 hrs (IEC standard, full bandwidth pink noise with 6 dB crest factor for specified period)
  • Maximum SPL: 123 dB SPL continuous (129 dB SPL peak) - Calculated based on power rating and sensitivity
  • System Sensitivity (1w @ 1m): 97 dB SPL
  • LF Driver: 1 x JBL 262H 305 mm (12 in) Differential Drive woofer
  • HF Driver: 1 x JBL 2408H 375 mm (15 in) annular polymer diaphragm, neodymium compression driver
  • Nominal Impedance: 8 ohms
  • Enclosure: Symmetrical stage monitor, 15/18 mm, plywood
  • Suspension/Mounting: Dual angle, 35 mm pole socket
  • Transport: Integrated handle/input cup
  • Finish: Black DuraFlex finish
  • Grille: Powder coated, black, 16 gauge perforated steel with acoustically transparent black screen backing
  • Input Connectors: Neutrik Speakon NL-4 (x2), one on each end
  • Dimensions (H x W x D): 645 mm x 380 mm x 345 mm (2525 in x 150 in x 135 in)
  • Net Weight: 149 kg (330 lbs)

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Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 11 answers
How can I connect this to my mixer so when i DJ, so i can hear the music in the DJ Booth?
DJ on Apr 16, 2011
BEST ANSWER: What you can do is have one speaker on one side and have two connected on the other. That way you can use one as a monitor.
JBL Pro MRX-512M Reviews
4.8 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
11
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1
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the best deal!
Pros: Good Power Output,Attractive Design,Easy To Set Up,Great Sound Quality

Multi-use cabinet, main top, monitors,looks, sounds great and a great del!
June 23, 2015
Purchased
1 year ago
as described fast shipping low price free shipping
Pros: Easy To Set Up,Good Power Output,Great Sound Quality

they do what the are made to do good for vocals and some intruments not so good on bass and kick drum but not suppose to be
June 25, 2015
Purchased
1 year ago
Definitely recommend this to a friend!
Pros: Attractive Design,Good Power Output,Great Sound Quality,Easy To Set Up,Swag All Day And Night,Easy to Mount,Great price
Cons: Nothing

Use this setup to Dj small and large parties, even practical for practicing at home! Would recommend this to a fellow dj looking for a strong and clear sound!
June 26, 2015
Purchased
1 year ago
Awesome JBL MRX monitors
Pros: Feedbac Is Gone,Good Power Output,Easy to Mount,Great Sound Quality,Easy To Set Up,Attractive Design
Cons: NONE

So happy to purchase these JBL. Told my buddy to buy another pairs. The prices from PSSL is unbeatable
July 7, 2015
Purchased
1 year ago
great stage monitor!
Pros: Respected Model,Lightweight,Rugged,Great Sound Quality,Great price
Cons: Out Of Production

A step down from the srx712 in maximum output, but a much better value and it gets loud enough for small stages and sounds good doing so with a few EQ cuts.
July 9, 2015
Purchased
1 year ago
Very nice utility speaker
Pros: Accurate Reproducer,Great Sound Quality,Easy to Mount

These are one of the most useful stage monitors that I own.
This speaker is suprisingly light and wonderfully clean sound. Add a pair of 418s subs and they will do fine for FOH at small to medium sized venues as well.
July 10, 2015
Purchased
1 year ago
Best speaker for the money
Pros: Easy To Set Up,Easy to Mount,Attractive Design,Great Sound Quality,Good Power Output

Really impressed with the overall quality and durability.
July 13, 2015
Purchased
1 year ago
Can't believe jbl discontinued this speaker
Pros: Good Power Output,Great Sound Quality,Easy To Set Up,Attractive Design,Easy to Mount
Cons: Discontinued

I have had a pair of these since they first came out. I bought the mrx515 as well. But the sound of the mrx512 over subs is hard to beat. I bought a second pair of mrx512 and never take the 515s out of the trailer.
We use for gospel quartet as monitors and also as mains over the matching 18 in. Subs.
July 21, 2015
Purchased
1 year ago
JBL MRX is the best
Pros: Easy to Mount,Easy To Set Up,Great Sound Quality,Good Power Output,Attractive Design

I use this for product for my one man band and it's great..
July 22, 2015
Purchased
1 year ago
JBL Excellence
Pros: Good Power Output,Attractive Design,Easy To Set Up,Great Sound Quality,Easy to Mount

JBL has been reliable thru the years. JBL gives the biggest bang for the buck. JBL is a working man's hero.
July 28, 2015
Purchased
1 year ago
JBL Pro MRX-512M Product Manual
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