Icom SP-34 Instructions

INSTRUCTIONS
EXTERNAL SPEAKER
SP-34
FOREWORD
The SP-34 is designed for use
EXTERNAL SPEAKER
with a wide variety of communication equipment,
especially base station systems. The SP-34 is
equipped with four separate audio network filters
for maximum control of the audio characteristics of
received signals.
CONNECTIONS
Connect the supplied audio cable between the [INPUT
A] or [INPUT B] jack on the SP-34 rear panel and the
external speaker jack of the transceiver or receiver.
Another jack is available to connect another trans-
ceiver or receiver.
SP-34 (Rear panel) CONNECTION EXAMPLE
OUTPUT INPUT
A B
from another transceiver or receiver
SPECIFICATIONS
• Speaker : 12 cm (4.7 inch) Cone-type
• Rated Input Power : 3 W
• Maximum Input Power : 5 W
• Impedance : 8 Ω
• Frequency Response : 100 to 9000 Hz
• Filter Cut-off frequency :
HPF1 300 Hz at –3 dB point
HPF2 600 Hz at –3 dB point
LPF1 2.4 kHz at –3 dB point
LPF2 800 Hz at –3 dB point
All stated specifications are subject to change without notice or obligation.
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United
States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.
Thank you for purchasing the SP-34
external
.
speaker
To fully enjoy the benefits of the SP-34, please
read these instructions thoroughly before using the
speaker with a transceiver or receiver.
SUPPLIED ACCESSORIES
• Instruction manual (This sheet) �������� 1
• Audio cable ����������������� 2
• Feet �������������������� 2
(Audio cable specification: 3.5 (d) mm; 1 / " plug, mono-
8
phonic cable)
Transceiver or receiver
EXT-DISPLAY REMOTE RS-232C
AC
I
15A
ANT 1 ANT 2 ANT 3 ANT 4
GND
DC OUT
RX ANT EXT ACC ALC S/P DIF
15V
OUT IN X-VERTER MAX1A METER KEYPAD EXT-SP 2 1 RELAY ALC ADJ OUT IN CW KEY
External speaker jack
Supplied audio cable
• Filter Response : –6 dB/octave
• Dimentions : 150(H) × 200(W) × 343(D) mm
5.9(H) × 7.9(W) × 13.5(D) inch
(Proj. not included)
• Weight : Approximately 3 kg (6.6 lbs.)
Front panel view
PHONES
• FRONT PANEL
q SPEAKER OFF LED
When the [SPEAKER OFF] switch is pushed in,
and audio signals are applied to the [INPUT A] or
[INPUT B] jack, the Speaker OFF LED flickers and
varies in intensity relative to the received audio sig-
nal strength.
w SPEAKER ON/OFF SWITCH [SPEAKER OFF]
Push to turn the speaker or headphone audio out-
put ON or OFF.
• Released ( )
• Pushed in ( ) : The audio is muted.
Regardless of the [SPEAKER OFF] switch position,
audio signals are output from the [OUTPUT] jack.
NOTE: If no sound is heard from both the speaker
and headphones, make sure the [SPEAKER OFF]
switch is not in the pushed in position.
e INPUT JACK SELECTOR SWITCH [INPUT A/B]
Push to select [INPUT A] or [INPUT B] on the rear
panel.
• Released ( ) : The [INPUT A] jack is selected.
• Pushed in ( ) : The [INPUT B] jack is selected.
REF I/O
10MHz r FILTER SELECTOR SWITCHES
-10dBm
[HPF1], [HPF2], [LPF1], [LPF2]
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 use-
ful in producing a customized, personal audio sound.
• [HPF1] SWITCH
Cuts off audio output frequencies of approximately
300 Hz or less when the switch is pushed in.
• [HPF2] SWITCH
Cuts off audio output frequencies of approximately
600 Hz or less when the switch is pushed in.
• [LPF1] SWITCH
Cuts off audio output frequencies of approximately
2.4 kHz or more when the switch is pushed in.
• [LPF2] SWITCH
Cuts off audio output frequencies of approximately
800 Hz or more when the switch is pushed in.
NOTE: When both the [HPF1] and [HPF2]
switches are pushed in, priority is given to the
[HPF2] switch over the [HPF1] switch. Also in the
[LPF1] and [LPF2] case, priority is given to the
[LPF2] switch over the [LPF1] switch.
t HEADPHONES JACK [PHONES]
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
PANEL DESCRIPTION
Rear panel view
SPEAKER OFF
q
SPEAKER OFF LED
INPUT A B w SPEAKER
ON/OFF SWITCH
e INPUT JACK
SELECTOR
SWITCH
OUTPUT
HPF1 HPF2 LPF1 LPF2
r FILTER SELECTOR
SWITCHES
t HEADPHONE
JACK
Connect a pair of headphones (impedance: 4–16 Ω)
to this jack, if desired. The built-in speaker does not
function while the [PHONES] jack is being used.
• REAR PANEL
y INPUT JACKS [INPUT A], [INPUT B]
Audio signals are applied to [INPUT A] or [INPUT
: The audio is output. B]. Use the supplied audio cable to connect be-
tween either jack and the external speaker jack on
your transceiver or receiver. The SP-34 can be con-
nected to two transceivers or receivers using these
jacks.
u OUTPUT JACK [OUTPUT]
This jack outputs audio signals after they pass
through the audio filters specified by the front panel
filter selector switches. This is useful when operat-
ing terminal units such as RTTY, PSK31 or other
data communication modes.
Regardless of the [SPEAKER OFF] switch position,
audio signals are output from this jack.
NOTE: When the [SPEAKER OFF] switch is pushed
in, be sure to turn OFF all of the filters [HPF1],
[HPF2], [LPF1] and [LPF2].
Otherwise the audio signals from the [OUTPUT]
jack might be affected.
The speaker has adjustable feet for desktop use. Set
the feet to one of two angles, depending on your op-
erating preference.
INPUT
A B
y INPUT JACKS
u OUTPUT JACK
STAND ATTACHMENT
A-7021X-1G-qa Printed in Japan
© 2012–2016 Icom Inc.