EAW MH662iE User Manual

APP TECHNICAL DATA
VOLUME TWO
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EASTERN ACOUSTIC WORKS, INC. One Main Street, Whitinsville, MA 01588 • TEL: (508) - 234 - 6158 • FAX: (508) - 234 - 8251 • BBS (508) 234-6173
Volume 2: Release 1.2 Acoustical Performance Partnership Program Page 146
5.0 MH662iE SYSTEM
5.1 MH662iE Architectural Specifications
The two-way midrange/high frequency loudspeaker system shall incorporate two 10
inch mid frequency cone transducers and a compression driver mounted to a con-
stant directivity high frequency horn. The system shall meet the following perfor-
mance criteria: Frequency Response of 160 Hz to 19 kHz ± 3 dB; Axial Sensitivity (1W
@ 1m) of 112 dB SPL; 100 hour sine wave Power Handling of 350 Watts (MF), 80
Watts (HF); Horizontal coverage of 65° between -6 dB points; Vertical coverage of 45°
between -6 dB points.
The system’s mid frequency drivers shall be loaded into identical constant horizontal
coverage horns constructed of 3 mm cross-grain-laminated birch hardwood. The horn
flares shall be reinforced with high density polyurethane foam and shall incorporate
center displacement plugs. The high frequency driver shall utilize a titanium dia-
phragm.
The trapezoidal enclosure shall be constructed of void-free cross-grain-laminated birch
plywood and shall have internal bracing. It shall be finished in a black catalyzed poly-
urethane coating. All external hardware shall be stainless steel or shall be coated to
protect against rust and corrosion. The front of the system shall be covered with a
protective perforated steel grill assembly coated with vinyl to dampen resonance.
Hanging fixture attachment points shall be installed in the top and bottom of the
enclosure and mating clips shall be included with the system. Cabinet sides shall be
tapered in such a way as to simplify construction of arrays.
The two-way midrange/high frequency loudspeaker system shall be the EAW model
MH662iE.

EAW MH662iE Specifications

General

Nominal Beamwidth (horizontal)	60°
HF Subsystem	1 x 1.4" compression driver
LF Driver	12" woofer
HF Driver	1.4" compression driver
Connectors	Neutrik NL4
Nominal Impedance	8 ohms

Summary

MH662iE Architectural Specifications

System Design and Performance Criteria

Details the two-way midrange/high frequency system, transducer types, horn construction, and key performance metrics.

MH662iE Mechanical Drawings

Enclosure and Mounting Details

Provides dimensional drawings, enclosure construction, and hanging fixture information for the MH662iE.

MH662iE Polar Response Data

MH662iE Axial Frequency Response

Frequency Response Graph

Graph showing the axial frequency response of the MH662iE system, normalized to 2.83V @ 1m.

MH662iE Off-Axis Frequency Response

Horizontal Response (+10°/-10°)

Displays normalized horizontal off-axis response at +/- 10 degrees.

Horizontal Response (+30°/-30°)

Displays normalized horizontal off-axis response at +/- 30 degrees.

Vertical Response (+10°/-10°)

Displays normalized vertical off-axis response at +/- 10 degrees.

Vertical Response (+30°/-30°)

MH662iE Distortion Measurements

Total Harmonic Distortion Data

Presents Total Harmonic Distortion (THD) levels versus frequency.

Fundamental and Harmonic Distortion Curves

Detailed curves for fundamental, 2nd, and 3rd harmonic distortion versus frequency.

CCEPT™ Crossover and Powering Options

MX300i-662EBH CCEPT™ Configuration

Details component values and settings for the MX300i-662EBH CCEPT™ system.

MX300i-662EBH CCEPT™ Response Data

Presents response data for the MX300i-662EBH CCEPT™ system configurations.