Appendix C: Technical Information

HD1801 Specifications
Acoustic Performance

 

 

AC Power Requirements

 

 

 

 

 

 

Frequency Response (–10 dB):

35 Hz – 145 Hz

 

US:

100-120 VAC, 50-60 Hz,

Frequency Response (–3 dB):

44 Hz – 95 Hz

 

 

300 watts

 

 

 

Max peak SPL (calculated)1:

133 dB

 

Europe:

220-240 VAC, 50-60 Hz,

 

 

300 watts

Max peak SPL (measured)2:

129 dB

 

 

 

AC Connector:

3-pin IEC 250 VAC,

 

 

 

Transducer

 

 

 

15 A male

Diameter:

18.0 in / 457 mm

 

 

 

Voice Coil Diameter:

4.0 in / 102 mm

 

Construction Features

 

Diaphragm Material:

Paper

 

Basic Design:

Rectangular

 

 

 

Magnet Material:

Ferrite

 

Material:

15 mm exterior grade

 

 

 

Power Amplifier

 

 

 

premium birch plywood

 

 

Finish:

High durability black

Rated Power:

800 watts rms

 

 

 

paint

 

1600 watts peak

 

 

 

 

Handles:

One on each side

THD:

< 0.03%

 

 

Grille:

Powder-coated

Design:

Class D

 

 

 

galvanized steel

Cooling:

Active, twin thermally

 

 

 

Fly Points:

Twelve M10 x 1.5 mm

 

controlled vari-speed

 

 

 

 

 

 

fans

 

 

 

Manual Owner’s

Input/Output

Input Type:

Female XLR Balanced

 

differential

 

(stereo left/right)

Input Impedance:

20 k

Full Range Output:

Male XLR Balanced

 

(parallel with input)

High Pass Output:

Male XLR Balanced

Output Impedance:

300

Level Control:

–6 dB to +6 dB

Electronic Crossover

Crossover Type:

24 dB/oct.

 

Symmetrical

 

Linkwitz-Riley

Crossover Frequency:

100 Hz

Protection Features

Over-excursion Protection:

40 Hz 24 dB/oct.

 

Butterworth High

 

Pass Filter

Thermal Protection:

Amplifier mute, auto

 

reset, twin thermally

 

controlled vari-speed

 

fans

Driver Protection:

Peak/RMS Limiter

Display LEDs:

Power Light ON, Polarity

 

Invert, Thermal,

 

Sig/Limit, Front Power

 

ON

Physical Properties

Height:

23.0 in / 584 mm

Width:

23.0 in / 584 mm

Depth:

25.8 in / 655 mm

Weight:

106 lb / 48.1 kg

Mounting Methods

Floor mount or fly via 12 integrated M10 mounting points (using M10 x 1.5 x 37 mm forged shoulder eyebolts). See page 12 for more information.

Disclaimer

Since we are always striving to make our products­ better by incorporating new and improved materials, components, and manufacturing methods, we reserve the right to change these specifications at any time without notice.

“Mackie” and the “Running Man” figure are registered trademarks of LOUD Technologies Inc.

All other brand names mentioned are trademarks or ­registered trademarks of their respective holders, and are hereby acknowledged.

1Calculated from peak driver sensitivity and amplifier power, half space.

2Measured with swept sine at 1 W within operating range, scaled for max power, half space.

©2010 LOUD Technologies Inc.

Owner’s Manual

17

All Rights Reserved.