JBL Car Speaker MS125S User Manual

Low Frequency  
Loudspeaker System For  
Permanent Installation  
MS125S  
Marquis Series  
Key Features:  
Usable LF reinforcement to 35 Hz  
2 x 15" LF transducers  
Internal Low Pass Passive Network  
DuraFlex finish, tough, weather-resistant  
and paintable  
Ultra Compact Optimized enclosure design  
Dual Neutrik Speakon connectors  
Hand Locations  
The model MS125S is an ultra compact low  
frequency loudspeaker system. The dual 15"  
JBL low frequency transducers combined with  
an acoustically optimized enclosure design  
provide powerful transient bass with  
minimum power compression and distortion.  
The internal low pass passive network  
replaces the need for an external electronic  
crossover when using with other Marquis  
Series systems in a complete installation.  
The compact rectangular enclosure enables  
this system to be located in discrete locations  
or stacked together for maximum acoustic  
coupling.  
The rugged plywood construction of the  
enclosure, along with a textured DuraFlex  
finish and a heavy duty zinc treated steel,  
foam-backed grille and treated cones enable  
this Marquis Series enclosure to meet with  
environmental test specifications.  
Preliminary Specifications:  
System:  
Freq. Range (-10 dB): 35 Hz - 250 Hz  
Freq. Response (-3 dB): 40 Hz - 175 Hz  
Recommended High Pass: 30 Hz, 12 dB/Octave  
Internal Low Pass: 200 Hz, 6 dB/Octave  
Transducers:  
Low Frequency: 2 x 2032H, 380 mm (15 in) dia.  
Nominal Impedance: 4 Ohms  
Input Power Rating: 700 W, AES; 2800 W Peak  
1
Sensitivity : 100 dB, 1 W @ 1 m (3.3 ft)  
Maximum Rated SPL: 134 dB, @ 1 m (3.3 ft)  
3
Recommended Amplifier : 800 W (4 ohms)  
Physical:  
Enclosure: Rectangular cabinet, plywood  
Environmental Specifications: Mil-Std 810, IPX4 per IEC 529  
Finish: Black DuraFlex coating  
Grille: Black powder coated zinc treated 18 gauge  
perforated steel grille with foam backing  
Input Connectors: 2 x NL4 Neutrik Speakon connectors  
Dimensions: 922 mm x 569 mm x 572 mm (36.3 in x 22.4 in  
x 22.5 in)  
Net Weight: 45.5 kg (100 lbs.)  
Designed for permanent installation, the  
MS125S is part of the Marquis Series, a  
complete range of installation loudspeaker  
systems.  
1
Measured on-axis in the far field with 1 watt (2.0 V RMS, 8 ohms) input and referenced to 1 meter distance using the  
inverse square law. Listed sound pressure represents an average from 100 Hz to 500 Hz.  
2
Recommended Amplifier is a power capability value that should be taken as a guide.  
JBL continually engages in research related to product improvement. New materials, production methods, and design  
refinements are introduced into existing products without notice as a routine expression of that philosophy. For this  
reason, any current JBL product may differ in some respect from its published description, but will always equal or  
exceed the original design specifications unless otherwise stated.  
 

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