Electro-Voice ID30C-8 Specifications

ID30C-8/ID30C-16/

ID30CT

General Product Description

The ID30C-8, ID30C-16 and ID30CT are heavy-duty
compression drivers for use in medium-power public address
installations.

The drivers employ rugged phenolic diaphragms, 1.5-inch
diameter voice coils and “rim centered” ferrite magnet
structures for long life and reliability under extreme operating
conditions.

A hinged cycolac rear housing for easy access and
connection to a sound system, via a BX conduit connector,
is provided together with a plug-in, field-replaceable
diaphragm assembly.

The transformer model (ID30CT) includes connections for
25-V and 70-V distributed systems and a screwdriver
operated power-tap select switch.

The exterior parts are injection-molded from polycarbonate,
and all metal parts have been tropicalized for resistance to
high humidity and fungus.

Ideal for both indoor and outdoor applications, these drivers
are well suited for any installation requiring rugged,
medium-power performance.

Architects’ and Engineers’ Specifications

The loudspeaker(s) shall be of the compression-driver type
utilizing a rugged phenolic diaphragm and a
high-temperature rated, 1.5-in. diameter voice coil.

The loudspeaker(s) shall exhibit essentially flat power
response from 300 to 4,000 Hz with a smoothly rolled-off
response beyond. Their sensitivity, when mounted on a PH
horn, will be 107 dB (1 W/1 m) with a 500- to 5,000-Hz
pink-noise signal applied.

Medium-Power

Compression Drivers

The loudspeaker(s) shall be capable of handling a 30-watt,
500- to 5,000-Hz pink-noise signal with a 6-dB crest factor
for a period of eight hours.

The loudspeaker(s) shall have a diameter of 10.6 cm (4.2
in.) and a depth of 13.2 cm (5.2 in.). They shall have a 2.41
cm (0.95 in.) throat opening with a 1 3/8-18 thread for
mounting.

The loudspeaker shall be the ID30CT, which includes a 70-V/
25-V line-matching transformer (see Table II) and weighs no
more than 2.1 kg (4.5 Ib), and the ID30C8, which has a
nominal impedance of 8 ohms (or ID30C-16 with 16-ohm
impedance) and weighs no more than 1.6 kg (3.5 lb).

COMMERCIAL

Specifications:

Frequency Response:

300-4,000 Hz, ±5 dB (see Figure 2)

Power Handling, 8 hours, 6-dB crest factor:

30 watts (500- to 5,000-Hz pink noise)

Impedance,
Nominal:

ID30C-8 ...................................................................... 8 ohms

ID30C-16 .................................................................. 16 ohms

Minimum, on Cobreflex Horns, Above 500 Hz:

ID30C-8 ................................................... 7.5 ohms (850 Hz),

ID30C-16 .................................................. 14 ohms (850 Hz),

Sound Pressure Level at 1 Meter, 1 Watt Input Average, Pink
Noise Band-Limited from 500 to 5,000 Hz:

see Table I

Voice-Coil Diameter: .......................................... 3.81 cm (1.5 in.)

Magnet Weight: ................................................... 0.28 kg (0.63 1b)

Magnet Material: .................................................. Strontium ferrite

Flux Density: ................................................................. 1.00 Tesla

Construction:

Rugged weatherproof finish for outdoor use

Dimensions,

Diameter: ...................................................... 10.6 cm (4.2 in.)

Height: ......................................................... 13.2 cm (5.2 in.)

Net Weight,

ID30C-8/-16: ..................................................... 1.6 kg (3.5 lb)

ID30CT: ............................................................ 2.1 kg (4.5 Ib)

Shipping Weight,

ID30C-8/-16: ..................................................... 1.8 kg (4.0 Ib)

ID30CT: ............................................................ 2.3 kg (5.1 Ib)

Recommended Horns:

Cobreflex IIB, Cobreflex III, PH, 2WP, SMH, SH

Installation

Remove the plastic cap from the threaded throat of the driver and screw
the driver into the horn until firmly seated

Install the horn/driver assembly in intended location, referring to the
instructions provided with the horn.

Remove the three screws from the rear of the driver housing and open the
housing for access to the wiring.

Loosen the gland nut in the side of the driver housing enough to admit the
loudspeaker wire/cable. Alternately, a 1/2-inch conduit fitting can be
substituted for the gland nut. However, the sealing washer must be retained.

For the ID30CT, connect the loudspeaker wires to the “com” terminal and
the appropriate line terminal (25 V or 70 V). For the ID30C-8/-16, connect
to the black and white loudspeaker wire using wire nuts.

Tighten the gland nut securely and reassemble the rear housing by replacing
the screws and tightening securely.

Transformer Model (1829T)

A transformer and power-selector switch are installed in the base of the
housing. Color coding for the transformer is listed in Table II. Transformer
wiring with respect to Table II is illustrated by Figure 5.

Low-Frequency Driver Protection

When frequencies below the low-frequency cutoff for the horn assembly
are fed to the driver, excessive current may be drawn by the driver. For
protection of driver, amplifier, and transformer (if driver with built-in

transformer is used), capacitor(s) in series with driver, or transformer primary
are recommended. Table I indicates recommended values. The values
shown are for 200 Hz. Values for other frequencies can be determined by
using the formula:

C

C

x 200

C =

200

[

f f = New Frequency

For drivers without transformers: 8-ohm driver, 25 V - 100

Values shown in the following table

200

]

nroHM1@W1rofLPS

BIIxelferboCBd601

IIIxelferboCBd601

mf

Table I. Sound Pressure Level for 1829 with Various Horns

seniLtloV-07seniLtloV-52

rewoPecnadepmIecnaticapaCecnadepmIecnaticapaC

W03smho7615

fm

W51smho5332fmsmho2402
W01smho0053.1

W5smho000,17.0

W5.2smho000,24.0

W52.1smho000,42.0

fm
fm
fm
fm

smho1204

fm
fm

smho3631

smho5217
smho0524
smho0052

fm
fm
fm
fm

Table II. Series Protection Capacitors for 200 Hz and Below

Disortion Response - Plane Wave Tube (1 inch)

Figure 1.

(6 watt input)

Figure 3.

Impedance Response - Plane Wave Tube (1 inch)

USA 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]
Canada 705 Progress Avenue, Unit 46,Scarborough, Ontario, Canada, M1H2X1,Phone: [phone], FAX: [phone]
Switzerland Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: [phone]. FAX: [phone]
Germany Hirschberger Ring 45, D94315, Straubing, Germany, Phone: [phone], FAX: [phone]
France Parc de Courcerin, Alle Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: [phone], FAX: [phone]
Australia Unit 23, Block C, Slough Business Park, Slough Avenue, Silverwater, N.S.W. 2128, Australia, Phone: [phone], FAX: [phone]
Hong Kong Unit E & F, 21/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: [phone], FAX: [phone]
Japan 2-5-60 Izumi, Suginami-ku,Tokyo, Japan 168, Phone: [phone], FAX:[phone]
Singapore 3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: [phone], FAX: [phone]
Mexico Av. Parque Chapultepec #66-201, Col. EI. Parque Edo. Mex. 53390, Phone: [phone], FAX: [phone]
UK 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: [phone], FAX: [phone]
Africa, Mid-East 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]
Latin America 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]

www.electrovoice.com • Telex Communications, Inc. • www.telex.com

© Telex Communications, Inc. 02/2001

Part Number 38109-854 Rev A

Disortion Response - FC100 Horn

Figure 2.

Figure 4.

Impedance Response - FC100 Horn

For customer orders, contact the Customer Service department at

For warranty repair or service information, contact the Service

For technical assistance, contact Technical Support at 866/78 AUDIO

Please refer to the Engineer ing Data Sheet for warranty information.

800/392-3497 Fax: [phone]

Repair department at 800/685-2606

Specifications subject to change without notice.

U.S.A. and Canada only.