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.
EXTERNAL SPEAKER
INSTRUCTIONS
SP-23
The SP-23
EXTERNAL SPEAKER
is designed for use with
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.
FOREWORD
CONNECTIONS
CONNECTION EXAMPLE
SP-23 (Rear panel)
Transceiver or receiver
Ext. speaker jack
Supplied connection cable
from other transceiver or receiver
FILTER SELECTOR
SWITCHES
INPUT JACK
SELECTOR SWITCH
SPEAKER ON/OFF
SWITCH
HEADPHONES JACK
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1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
A-6314H-1G Printed in Japan
© 2003 Icom Inc.
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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.
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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 ( ).
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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 ( ).
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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.
NOTE:
If no sound is emitted from both the speaker
and headphones, make sure the [SPEAKER
OFF] switch is in the OUT position.
• This instruction sheet
…………………………………
1
• Speaker cable
…………………………………………
1
• Sticker (Frequency characteristics)
…………………
1
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.
PANEL DESCRIPTION
SPECIFICATIONS
• Rated Input Power
: 2 W
• Maximum Input Power : 4 W
• Impedance
: 8
Ω
• Dimentions (W
×
H
×
D) : 145 mm
×
111 mm
×
282.5 mm
(Projections not incl.)
5
23⁄32
in
×
4
3⁄8
in
×
11
1⁄8
in
• Weight
: Approx. 1.65 kg (3.6 lbs.)
All stated specifications are subject to change without notice or obligation.
ACCESSORIES
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)
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FRONT PANEL
To raise the stand:
With the speaker upside down, pull the stand upwards,
as illustrated below.
‘
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STAND
stopper
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CAUTION
BE CAREFUL
not to cut your fingers on the edge of the
stopper when pulling up the stand.
