EAW CP621 User Manual

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FEATURES

• High performance passive ceiling-mount system

• Concentric Phase Aligned Array(tm) solve coaxial
design problems

• 6x 5.25-in woofers couple to act like a 21-in woofer

• 1-in exit HF on large format 60° (conical) horn

• 2x phase aligned 5.25-in woofers in horn-throat

• Optional 70 volt transformer available

DESCRIPTION

A 2-way/coaxial passive full range system for permanent in­stallation in 24-in square ceiling grids. Includes 6x concen­trically arrayed 5.25-in woofers plus 2x phase aligned 5.25-

in woofers and 1-in exit compression driver on a 60° (coni-

cal) constant directivity horn in a vented enclosure. Avail­able with optional installed 70 Volt transformer (CP621T).

APPLICATIONS

The CP621 uses Concentric Phase Alinged Array Technology
to acheive even response over a large defined area. Excel­lent power handling lets it cover a larger area than tradi­tional ceiling mounted loudspeakers with higher quality
sound. Easy installation in 24-in or 600 mm ceiling grids.
Six year warranty.

Applications include:

Gymnasiums
Convention Centers
Transportation Centers
Major Malls
Major Retail Spaces

PERFORMANCE

Frequency Response (1 Watt @ 1m)

±3 db 75Hz to 18kHz

-10 dB 60Hz

Axial Sensitivity (dB SPL, 1 Watt @ 1m)

101

Impedance (Ohms)

4

Power Handling, AES Standard (Watts)

Full Range 300

Calculated Maximum Output (dB SPL @ 1m)

Peak 131.8

Long Term 125.8

Nominal Coverage Angle , -6 dB Points (degrees)

Horizontal 60

Vertical 60

Recommended High-Pass Frequency

24 dB/Octave 65Hz

SPECIFICATIONS CP621

PHYSICAL

LF Subsystem 6x 5.25-in. concentrically arrayed

cones, vented plus 2x 5.25-in
phase aligned cones

HF Subsystem 1x 1-in exit compression driver on

constant directivity horn

Configuration Full range 2-way coaxial system

Powering Passive LF/HF crossover

Cabinet Type (shape) Rectangular

Enclosure Materials Baltic birch plywood

Finish Black catalyzed polyurethane

Connectors 2-Terminal barrier strip

Suspension Hardware (8) 3/8"-16 threaded mounting

points (2 each right and left side,
4 on top)

Grille Vinyl coated perforated steel

Options 70 volt transformer version

(CP621T)

Dimensions Inches Millimeters

Height 23.8 605

Width 23.8 605
Depth 13.6 345

Weights Pounds Kilograms

Net Weight 75 34.1

Shipping Weight 79 35.9

EASTERN ACOUSTIC WORKS

One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email [e-mail] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB# CP621-888024 (B)/2 pp/5/1/00 • Printed In USA

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DIMENSIONAL DRAWING

DIMENSIONAL DRAWINGS

MOUNTING POINT, 3/8"-16 THREADED HOLE

CP621

FRONT (BAFFLE)

510175
EXP 4/1/97 SHB

LEFT

CENTER OF GRAVITY.
ALL DIMENSIONS IN INCHES UNLESS OTHERWISE SPECIFIED.

23.31

23.31

2.75

1.65

12.03

.5

4.5

19.38

BACK

11.65

(1.97)

6.38

13.87

BOTTOM

.25

(1.97)

19.36

TOP

12.03

RIGHT

SPECIFICATIONS CP621

A & E SPECIFICATIONS

The 2-way full range ceiling mounted coaxial loudspeaker
systems shall incorporate 6x 5.25-in concentrically arrayed
LF transducers plus 2x 5.25-in phase aligned LF transducers
and a 1-in exit compression driver HF transducer.

The LF drivers shall be mounted in a vented enclosure tuned
for optimum low frequency response. The HF driver shall be
loaded on an axis symmetrical constant directivity horn with

a nominal coverage pattern of 60° (conical). An internal

passive filter network shall provide fourth order acoustical
crossover and system equalization.

System frequency response shall vary no more than ±3 dB

from 75Hz to 18kHz measured on axis. The loudspeaker shall
produce a Sound Pressure Level (SPL) of 101 dB SPL on axis
at 1 meter with a power input of 1 Watt, and shall be ca­pable of producing a peak output of 131.8 SPL on axis at 1
meter. The loudspeaker shall handle 300 of amplifier power
(AES Standard) and shall have a nominal impedance of 4
Ohms.

The loudspeaker enclosure shall be rectangular in shape and
shall be designed to mount in a 24-in ceiling grid. It shall be
constructed of 1/2-in thickness void-free cross-grain-lami­nated Baltic birch plywood. It shall be finished in black cata­lyzed polyurethane. Input connectors shall be 2-terminal
barrier strip type. A total of eight 3/8"-16 threaded mount­ing points (2 each right and left side, 4 on back) shall be
provided. The front of the loudspeaker shall be covered with
a vinyl coated perforated steel grille.

The 2-way full range ceiling mounted coaxial loudspeaker
shall be the EAW model CP621.

Acoustic Performance Partnership Eastern Acoustic Works CP621

One Main Street, Whitinsville MA, 01588 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • Web http://www.eaw.com • email [e-mail]