Kenwood SP-990 User Manual

EXTERNAL SPEAKER

SP-990

INSTRUCTION MANUAL

We are grateful you purchased this KENWOOD EXTERNAL SPEAKER.

PRECAUTIONS

• Do not expose the unit to rain or moisture to avoid the risk of ﬁ re or electric shock.

• Do not remove the case. Accidentally touching an internal part may result in serious electric shock.

• Do not expose the unit to long periods of direct sunlight, nor place it close to heating appliances.

• Do not place the unit in excessively dusty and/or humid areas, nor on unstable surfaces.

• Do not use solvents such as benzene or paint thinner to clean the unit. Use a silicone or a clean, dry cloth.

• Do not install this equipment in a constricted location, such as a book case.

• If you detect an abnormal odor or smoke coming from the unit, turn OFF the power of the transceiver immediately. Contact your KENWOOD service center or dealer.

FEATURES

This is an external speaker designed and dedicated for TS-990 transceiver. The 100 mm (3.94 in) large diameter full-range speaker is adopted, and

three diﬀ erent audio ﬁ lters for the high cutoﬀ and the low cutoﬀ . A Mute button instantly mutes the audio line.

SUPPLIED ACCESSORIES

Information on Disposal of Old Electrical and Electronic Equipment and Batteries (applicable for countries that have adopted separate waste collection systems)

Products with the symbol (crossed-out wheeled bin) cannot be disposed as household waste. Old electrical and electronic equipment should be recycled at a facility capable of handling these items and their waste byproducts. Contact your local authority for details in locating a recycle facility nearest to you. Proper recycling and waste disposal will help conserve resources whilst preventing detrimental eﬀ ects on our health and the environment.

The connection cable (Phone Φ3.5 mm (1/8"), mono) ......................1

Instruction Manual (this booklet) .......................................................1

Warranty Card ...................................................................................1

SPECIFICATIONS

Operating Temperature Range ......... –10°C to 50°C (14 °F to 122 °F )

maximum Input .............................................................................5 W

Input Impedance ............................................................... 8 Ω ± 15 %

Filter Cutoﬀ Frequency

HIGH 1 ................................................................... 2.4 kHz, -3 dB

HIGH 2 ................................................................... 1.0 kHz, -3 dB

HIGH 1+2 ............................................................... 700 Hz, -3 dB

LOW 1 ..................................................................... 200 Hz, -3 dB

LOW 2 ..................................................................... 400 Hz, -3 dB

LOW 1+2 ................................................................. 600 Hz, -3 dB

Dimensions (Width x Height x Depth) ..................200 x 165 x 300 mm

(7.87 x 6.5 x 11.8 in)(exclusive of projections)

Weight ......................................................................... 2.8 kg (6.2 lbs)

PANEL DESCRIPTIONS

FRONT PANEL

bac

PHONES Jack

Connects a set of headphones. Mates with a set of headphones with 4 to 32Ω impedance. If the ﬁ lter has been enabled, the ﬁ ltered audio is sent out. If the set of headphones is connected to the PHONES jack, no audio sounds from a speaker.

SPEAKER

The speaker with Φ100 mm (3.94 in) and 8Ω input impedance is the most suitable for reception.

MUTE Key

With a single key press, mutes the audio line to a speaker. This switch can be used to temporarily deactivate the audio line to the speaker. Pressing the key again while the audio line is being muted unmutes the audio line.

INPUT A and INPUT B Keys

Toggles the audio input between Input A and Input B. A key press selects the Input A, and a key press again selects the Input B.

FILTERS Key

FILTERS HIGH 1 Key

While this ﬁ lter is active, the signal above 2.4 kHz can be attenuated. (2.4 kHz, -3 dB)

FILTERS HIGH 2 Key

While this ﬁ lter is active, the signal above 1.0 kHz can be attenuated. (1.0 kHz, -3 dB) Also, if this ﬁ lter is active while the Filter High 1 ﬁ lter is active, the signal above 700 Hz can be attenuated. (700 Hz, -3 dB)

FILTERS LOW 1 Key

While this ﬁ lter is active, the signal below 200 Hz can be attenuated. (200 Hz, -3 dB)

FILTERS LOW 2 Key

While this ﬁ lter is active, the signal below 400 Hz can be attenuated. (400 Hz, -3 dB) Also, if this ﬁ lter is active while the Filter Low 1 ﬁ lter is active, the signal below 600 Hz can be attenuated. (600 Hz, -3 dB)

FRONT BASES

The lift-up supplementary bases are available in the front bases on the bottom of the speaker. To position the front panel slightly toward the upper side, pull the supplementary bases forward to the limit.

REAR PANEL

INPUT B

LINE OUT INPUT A

LINE OUTPUT Terminal

This is the line output terminal. This terminal can be used for recording of the received audio or for the data communications. If the ﬁ lter has been enabled, the ﬁ ltered audio is sent out. The output impedance is 1kΩ.

INPUT A and INPUT B Terminals

Connect the transceiver to the INPUT A and INPUT B terminals, then use a switch on the front panel to switch. For the TS-990 transceiver, mates with the EXT.SP 1 or EXT.SP 2 terminal. Connecting not only the TS-990 transceiver but also other transceiver to the speaker, and the audio input line can be switched.

TIPS AND HINTS

With the ﬁ lter combination, a ﬁ lter optimal to the operating mode can be selected.

Following are tips and hints applicable to each operating mode.

In SSB mode, the High 1 ﬁ lter is normally used. If the noise level is high, the High 1 ﬁ lter can be used by combining it with the Low 1 or Low 2 ﬁ lter. To gain the eﬃ ciency, the High 2 ﬁ lter can be used by combining it with the Low 2 ﬁ lter.

In CW mode, while both High 1 and High 2 ﬁ lters are active, you can com- bine the ﬁ lters with the Low 1 and Low 2 ﬁ lters. If the transceiver is oper- ated with the narrow-band IF DSP ﬁ lter or the Auto Peak Filter enabled, the audio ﬁ lter eﬀ ect of the transceiver cannot clearly be distinguished; however, there may be an eﬀ ect to eliminate the noise components.

In AM or FM mode, a ﬁ lter is normally deactivated, so that you can use the wide bandwidth. If any noise is audible, you can activate the High 1 ﬁ lter.

FILTER BEHAVIORS

1 If both High 1 and Low 1 ﬁ lters are active, the passband is ranging

from 200 Hz to 2.4 kHz.

2 If both High 1 and Low 2 ﬁ lters are active, the passband is ranging

from 400 Hz to 2.4 kHz.

3 If both High 2 and Low 2 ﬁ lters are active, the passband is ranging

from 400 Hz to 1.0 kHz.

4 All High 1, High 2, Low 1, and Low 2 ﬁ lters are active, the passband is

ranging from 600 Hz to 700 Hz.

HIGH CUT FILTER

3 dB

0 dB

-3 dB

-6 dB

-9 dB

-12 dB

-15 dB

-18 dB

-21 dB

-24 dB

-27 dB

-30 dB

LOW CUT FILTER

3 dB

0 dB

-3 dB

-6 dB

-9 dB

-12 dB

-15 dB

-18 dB

-21 dB

-24 dB

-27 dB

-30 dB

100 Hz 1 KHz 10 KHz

OFF

LOW 1

LOW 2

LOW1+2

100 Hz 1 KHz 10 KHz

OFF

HIGH 1

HIGH 2

HIGH 1+2