Icom SP-23 Instructions

INSTRUCTIONS
EXTERNAL SPEAKER
SP-23
FOREWORD
The SP-23 is designed for use with
EXTERNAL SPEAKER
a wide variety of communication equipment, especially
base station systems. The SP-23 is equipped with four
separate audio network filters for maximum control of
the audio characteristics of received signals.
CONNECTIONS
Connect the supplied speaker cable between the [INPUT A] or [INPUT B] jack on the SP-23 rear panel and the trans-
,
ceiver or receiver s external speaker jack.
Another jack is available to connect other transceiver or receiver. In this case, it is necessary to purchase another
speaker cable.
(Cable specification: 3.5 (d) mm, monophonic audio cable)
CONNECTION EXAMPLE
SP-23 (Rear panel)
from other transceiver or receiver
SPECIFICATIONS
• Rated Input Power : 2 W
• Maximum Input Power : 4 W
: 8 Ω
• Impedance
All stated specifications are subject to change without notice or obligation.
Thank you for purchasing the SP-23
EXTERNAL SPEAKER
To fully enjoy the benefits of the SP-23, please read
these instructions thoroughly before using the SP-23
with transceiver or receiver.
ACCESSORIES
• This instruction sheet ....................................... 1
• Speaker cable ................................................ 1
• Sticker (Frequency characteristics) ..................... 1
Transceiver or receiver
Ext. speaker jack
Supplied connection cable
D) : 145 mm × 111 mm × 282.5 mm
× ×
• Dimentions (W H
in × 4 in × 11
(Projections not incl.) 5 23 ⁄ 32 3 ⁄ 8 1 ⁄ 8 in
• Weight : Approx. 1.65 kg (3.6 lbs.)
' ' FRONT PANEL
.
q FILTER SELECTOR SWITCHES [HPF-1/2, LPF-1/2]
Push to select the internal audio filters that consist of
high-pass and low-pass filters with two different cut-
off frequency characteristics for each filter. They are
useful in producing a customized, personal audio
sound.
• [HPF 1] SWITCH
Cuts off audio output frequencies of approx. 500 Hz
or less when the switch is pushed IN.
• [HPF 2] SWITCH
Cuts off audio output frequencies of approx. 250 Hz
or less when the switch is pushed IN.
• [LPF 1] SWITCH
Cuts off audio output frequencies of approx. 3 kHz
or more when the switch is pushed IN.
• [LPF 2] SWITCH
Cuts off audio output frequencies of approx. 1 kHz
or more when the switch is pushed IN.
NOTE: [HPF 1] is selected automatically while [HPF 1]
and [HPF 2] are pushed IN at the same time.
[LPF 1] is also selected automatically while
[LPF 1] and [LPF 2] are pushed IN at the same
time.
' ' STAND
To raise the stand:
With the speaker upside down, pull the stand upwards,
as illustrated below.
RCAUTION
BE CAREFUL not to cut your fingers on the edge of the
stopper when pulling up the stand.
stopper
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
PANEL DESCRIPTION
q
FILTER SELECTOR
SWITCHES
w
INPUT JACK
SELECTOR SWITCH
e
SPEAKER ON/OFF
SWITCH
r
HEADPHONES JACK
w INPUT JACK SELECTOR SWITCH [INPUTA/B]
Push to select [INPUT A] or [INPUT B] on the rear
panel.
• [INPUT A] is selected: Released (
• [INPUT B] is selected: Pushed IN (
e SPEAKER ON/OFF SWITCH [SPEAKER OFF]
Push to turn the speaker audio output ON or OFF.
• The speaker is ON: Released (
• The speaker is OFF: Pushed IN (
NOTE: If no sound is emitted from both the speaker
and headphones, make sure the [SPEAKER
OFF] switch is in the OUT position.
r HEADPHONES JACK [PHONES]
Connect a pair of headphones (impedance: 4–16 Ω)
to this jack if required. The built-in speaker does not
function while the [PHONES] jack is being used.
A-6314H-1G Printed in Japan
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© 2003 Icom Inc.