JBL Professional MD55

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2-Way Full-Range Loudspeaker System with 1 x 15" LF

JBL’s Marquis Dance Club Series is a state-of-the-art family of loudspeaker systems designed specifically for the Dance Club Market. The MD55 is also designed for the mobile DJ requiring a light weight, high fidelity portable system. The multiangle enclosure features a 45° angle on one side for use as a floor monitor in the horizontal orientation and is fitted handles, a pole mount cup on the bottom panel. MD55 is a medium-power 90° x 50°,
15" 2-way fully passive full-range system utilizing a 265H Differential Drive transducers and a 2408H-1 compression driver with a 1.5" diaphragm for smooth low distortion high-frequency response. All of the Marquis Series loudspeakers offer unprecedented fidelity, clarity, and breathtaking purity.

Features

JBL 265H 2" dual voice coil – dual magnetic gap Differential Drive® woofers
JBL 2408H-1 1.5" diaphragm, 1" exit compression driver
90° x 50° rotatable PT™ Progressive Transition waveguide
Pole mount socket for portable applications

Applications

Sophisticated dance clubs
Mobile DJ
Live sound reinforcement

Downloads

Documents

	Language	Size	Uploaded
Marquis Dance Brochure updated: Apr 2026		538 KB	Apr 2026
MD55 Spec Sheet updated: Apr 2026		790 KB	Apr 2026

Data Sheets

	Size	Uploaded
MD55 Spec Sheet updated: Oct 2019	790 KB	Oct 2019

Specifications

	Size	Uploaded
Marquis Dance Club Series Spec Sheets updated: Jul 2019	3.97 MB	Jul 2019

Brochures

	Size	Uploaded
Marquis Dance Club Series Brochure updated: Jul 2019	538 KB	Jul 2019

CAD Drawings

	Size	Uploaded
Marquis Dance Series 2D DXF Drawings updated: Oct 2019	612 KB	Oct 2019
Marquis Dance Series 3D DXF Drawings updated: Oct 2019	10.4 MB	Oct 2019
Marquis Dance Series Customer Drawings PDF updated: Oct 2019	205 KB	Oct 2019

Compliances

	Size	Uploaded
Marquis Dance Club Series Declaration of Conformity updated: Oct 2019	144 KB	Oct 2019

Images

	Size	Uploaded
MD55 Hi-Res Image updated: Jul 2019	906 KB	Jul 2019
MD55 Hi-Res Image 2 updated: Jul 2019	1.25 MB	Jul 2019

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Parts & Service

Specifications

Frequency Range (-10dB)	39 Hz – 20 kHz
Power Rating	550 W (2200 W peak) 2 hrs
Coverage Pattern	90° x 50°, rotatable waveguide
Frequency Response (±3 dB)	51 Hz – 19 kHz
Directivity Factor (Q)	11.6
Directivity Index (DI)	10.6 dB
Passive Crossover Frequency	1.8 kHz
System Power Rating	350 W (1400 W peak), 100 hrs
Maximum SPL (1m)	125 dB-SPL cont avg (131 dB peak)
System Sensitivity	98 dB SPL, 2.83V (1W) @ 1m (3.3 ft)
System Impedance	8 ohms
LF Driver	1 x JBL 265H-1 380 mm (15 in ) Differential Drive woofer with dual 50.8 mm (2 in) voice coil
HF Driver	1 x JBL 2408H-1, 25.4 mm (1 in) exit compression driver, 38 mm (1.5 in) voice coil
Waveguide	PT-H95HF-1 Progressive Transition Waveguide
Enclosure	Trapezoidal with 7.5° and 45° side angles, 16 mm (5/8 in) exterior grade 11-ply birch plywood
Suspension Attachment	10 points (2 top, 2 bottom, 2 each side, 2 rear), M10 threaded hardware, 35 mm pole mount socket
Finish	Black DuraFlex™ finish.
Grille	Powder coated 14 gauge perforated steel
Input Connector	Neutrik Speakons NL4 (2 wired in parallel), plus CE-compliant covered barrier strip terminals. Barrier terminals accept up to 5.2 sq mm (10 AGW) wire or max width 9 mm (.375 in) spade lugs. NL4’s +1/-1 in parallel with barrier strip (+2/-2 loop through).
Environmental	Mil-Std 810; IP-x3 per IEC529
Dimensions (H x W x D in vertical orientation)	781.1 x 419.8 x 457.7 mm(30.8 x 16.5 x 18.0 in)
Net Weight	23.8 kg (52.5 lb)
Optional Accessories	M10 x 35 mm forged shoulder eyebolts with washers