QSC Audio MD-L115, MD-L118, MD-F152-64r, MD-F122-94r, MD-F122-64r User Manual

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MD Series

ModularDesign Loudspeakers

MD-F122/64r | MD-F122/94r | MD-F122/124r | MD-F152/64r MD-F152/94r | MD-F152/124r | MD-L115 | MD-L118

Features

All full range models feature a rotatable high-frequency horn, enabling them to be utilized in a vertical or horizontal configuration

Available in either black or white finishes

All full range and low-frequency enclosures employ the same overall dimensions and identical attachment point locations

All models constructed in a trapezoidal design of multi-ply birch with a powder coated steel grille

The ModularDesign™ Series offers exceptional performance in a wide variety of applications, including houses of worship, performing arts facilities, hotels, casinos, night clubs, and sporting facilities. Specifying MD Series is appropriate anywhere there is a need for dependable high performance loudspeakers with predictable coverage and extended frequency response. For design / build contractors and electroacoustic design consultants, the MD Series offers an effective solution to the myriad of challenges encountered in the design and implementation of permanently installed sound reinforcement systems.

Designed as a family of modular, arrayable loudspeakers, the full-range MD family includes six models: three models with 12" LF sections, and three with 15" LF sections. Nominal coverage patterns of 60˚ x 40°,

90° x 40° and 120° x 40° are available with either low-frequency complement. In addition, two low-frequency only MD systems, the MD-L115 and MD-L118, share the common form factor of the full-range systems. All share the same 35" tall, 30° trapezoidal enclosure as their MD Powered Series counterparts.

The form factor common to all MD loudspeaker models makes creating full range or combined full range/low-frequency clusters painless. The enclosures are designed with 30° angles; wall-to-wall tight packing enclosures splay the 60° x 40° horns perfectly and provide uniform coverage in any multiple of 60° to 360°. No gaps or spacers are required and the radial form of the front surface of the enclosures forms a contiguous cylindrical surface for a clean and aesthetically pleasing appearance.

Each enclosure is equipped with a total of fifteen 3/8"-16 threaded attachment points offering the installer tremendous flexibility in suspension and mounting.

Low-frequency transducers feature technically advanced 4" voice coils assembled with proprietary high temperature adhesives, vented magnet assemblies and highly optimized motor design to provide excellent dynamic range, flat frequency response and a very low distortion figure.

High-frequency compression drivers feature a Neodymium magnet motor structure and 65 mm (2.5") aluminum voice coil and titanium diaphragm plus a pole piece mounted copper shorting cap for extended HF response.

ModularDesign is a trademark of QSC Audio Products, Inc.

QSC Audio MD-L115, MD-L118, MD-F152-64r, MD-F122-94r, MD-F122-64r User Manual

MD Series Loudspeakers

MD-F122/64r

MD-F122/94r

MD-F122/124r

MD-F152/64r

Configuration

Low-frequency

12" transducer with 4" voice

 

coil, ferrite magnet

High-frequency

60° x 40° rotatable horn with

 

1.4" exit dia., 2.5" voice coil,

 

neodymium magnet

12" transducer with 4" voice coil, ferrite magnet

90° x 40° rotatable horn with 1.4" exit dia., 2.5" voice coil, neodymium magnet

12" transducer with 4" voice coil, ferrite magnet

120° x 40° rotatable horn with 1.4" exit dia., 2.5" voice coil, neodymium magnet

15" transducer with 4" voice coil, ferrite magnet

60° x 40° rotatable horn with 1.4" exit dia., 2.5" voice coil, neodymium magnet

Frequency Response (-6 dB)1

50 Hz - 18 kHz

50 Hz - 17 kHz

50 Hz - 15 kHz

50 Hz - 16.5 kHz

Frequency Range (-10 dB)1

45 Hz - 18.5 kHz

45 Hz - 20 kHz

45 Hz - 18 kHz

45 Hz - 18.5 kHz

Impedance

 

 

 

 

 

Passive

 

8Ω

8Ω

8Ω

8Ω

Biamp

 

8Ω LF / 8Ω HF

8Ω LF / 8Ω HF

8Ω LF / 8Ω HF

8Ω LF / 8Ω HF

 

 

 

 

 

 

Sensitivity 2

 

 

 

 

 

Passive 

95 dB

95 dB

95 dB

96 dB

Biamp

 

95 dB LF / 110 dB HF

95 dB LF / 109 dB HF

95 dB LF / 107 dB HF

96 dB LF / 110 dB HF

 

 

 

 

 

RMS Power Handling

 

 

 

 

Passive 3

 

400 W

400 W

400 W

400 W

Biamp 4

 

500 W LF / 63 W HF

500 W LF / 63 W HF

500 W LF / 63 W HF

500 W LF / 63 W HF

Maximum Output at 1 m

 

 

 

 

Passive

- Continuous 5

121 dB

121 dB

121 dB

122 dB

 

- Peak 6

127 dB

127 dB

127 dB

128 dB

Biamp

- Continuous 5

122 dB LF / 128 dB HF

122 dB LF / 127 dB HF

122 dB LF / 125 dB HF

123 dB LF / 128 dB HF

 

- Peak 6

128 dB LF / 134 dB HF

128 dB LF / 133 dB HF

128 dB LF / 131 dB HF

129 dB LF / 134 dB HF

Recommended Amplifier Power

 

 

 

 

Passive 

 

800 W

800 W

800 W

800 W

Biamp

 

1000 W LF / 125 W HF

1000 W LF / 125 W HF

1000 W LF / 125 W HF

1000 W LF / 125 W HF

 

 

 

 

 

Nominal Coverage (-6 dB)

60° x 40°

90° x 40°

120° x 40°

60° x 40°

 

 

 

 

 

 

Enclosure

 

 

 

 

 

 

 

 

 

 

Input Connectors

Terminal strips

 

 

 

 

 

 

 

Suspension Points

15 load-rated attachment points that accept 3/8"-16 threaded hardware

 

 

 

 

 

 

Finish

 

Wear resistant textured paint. Available in black and white (handles on black only)

 

 

 

 

 

 

Grille

 

Powder-coated perforated steel with black foam backing

 

 

 

 

 

 

 

Dimensions (HWD)

35" x 20.5" x 16.67"

35" x 20.5" x 16.67"

35" x 20.5" x 16.67"

35" x 20.5" x 16.67"

 

 

(889 mm x 521 mm x 423.4 mm)

(889 mm x 521 mm x 423.4 mm)

(889 mm x 521 mm x 423.4 mm)

(889 mm x 521 mm x 423.4 mm)

 

 

 

 

 

 

Weight

 

86 lbs (39 kg)

86 lbs (39 kg)

86 lbs (39 kg)

85 lbs (38 kg)

 

 

 

 

 

 

1)Free Field Response (4π)

2)1W, 1M Free-Field (4π) except MD-L115 and MD-L118, which are groundplane measurements

3)Measured per AES1984

4)AES1984 50 - 500 Hz (LF), 1 - 10 kHz x (HF); Power = V 2 / Zmin

5)Calculated based on sensitivity and continuous power handling capacity

6)Calculated based on sensitivity and 6 dB peak-to-average ratio of signal used for continuous power handling test

Specifications subject to change without notice.

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