Coustic 160SE Manuel du propriétaire télécharger pdf (Page 7)

FINAL SYSTEM CHECK

INPUT SENSITIVITY ADJUSTMENT

The Input Sensitivity Control is located on the Front Panel. The objective of input sensitivity

adjustment is to match the output of the source unit with the input of the amplifier. The output

voltage of individual source units can vary. For example, some radios have an output of 200 mV,

others have 5 Volts or more. To cater to these variations, the 160SE amplifier has an adjustable

input sensitivity level that ranges from 100 mV to 5 volts.

Adjusting this control requires some experimenting. Basically you want all the gain at the begin-

ning of the system, NOT at the end (amplifier). Turn your headunit volume UP and keep your

amplifier gains at the minimum possible settings. This will give you the best sound and lowest

signal to noise ratio.

Besides better sonic reproduction, proper input sensitivity also helps to prolong the reliability

span of your amplifier by eliminating excessive internal temperature generated by incompatible

source unit output and amplifier input.

Note : Turning the input gain UP does NOT indicate MORE power. Just MORE noise. The input

gain control IS NOT a power control. REMEMBER that the input gain control has nothing to do

with the power output of the amplifier.

Figure 9: Input Sensitivity Control

1. Turn the Input Sensitivity Control all the way down (counter clockwise).

2. Set the volume control of the source unit to approximately 2/3 of its maximum output.

3. Turn the balance control of the source unit to its center position.

4. Leave the tone (bass/treble) controls at their usual position.

5. Play a CD or tape track with greater dynamic range

6. To locate the optimum input sensitivity setting, ask the person assisting you to turn the Input

Sensitivity Control clockwise until audio distortion starts to develop. Turn the sensitivity

control backwards slightly to minimize the distortion.

7. If you constantly switch between CD/tape and radio, you will need further adjustment since

radio output level differs from that of CD or tape. In this case, you need to locate a balanced

sensitivity setting which is best for both the output level of radio and that of CD or tape.

CROSSOVER SELECTION

The amplifier has built-in high-pass/low-pass filters that can be defeated by sliding the switch to

the OFF position.

1. When the high-pass is selected, the amplifier will be devoted to mid/tweeters.

2. When the low-pass is selected, the amplifier will be used to drive woofers/subwoofers.

3. When the filter is switched off, the amplifier is used as a full range amplifier.

CROSSOVER FREQUENCY SELECTION

Both the high-pass and the low-pass section offer 2 crossover frequencies - 80 and 120 Hz.

Choose the setting according to your speaker component specification or to your particular

preference.

Figure 10: Crossover Frequency Selection

Figure 11. Typical System connection

www.coustic.com

5 volts .1 volt

NPUTOUTPUT INPUT

180

SENS

MIN MAX

MODE

HPF OFF LPF

180

80 120

MAX

MODE

HPF OFF LPF

FREQ

80 120

MAX

MODE

HPF OFF LPF

FREQ

80Hz - Low-pass selected

231456

LOUD

CD-328

–

LOUD MUTE

ASM MONO

DISP WB

P.CL

SHUF RPT SCAN EAS P.ME P.PLA

TUNE

SEL

MODE

BAND

DISC

PWR

EJECT

REL

FRONT speaker

lead Inputs

LoZ

option 2

HS-652a

6 1/2 inch Co-Axial

160SE

POWER AMPLIFIER

(crossover set at 80Hz)

CD527 CD/RECEIVER

and CD CHANGER CONTROL

RPT

Auto Aligned

Azimuth System

D.SCAN

1 4 5 6

70µ

POWER

PRO

MODE

DOLBY B

RX-779

SHUFF T.SCAN D.RPT P. PLAY

LOU

DIS

P. M E

TRACK

RESE

– +

A.S.

CD Changer Control

TUNE

SEEK

70µs TPS

AM FM 1 2

LOUD

SHUFF D.SCAN DISC D.RPT

TRACK

DIS

BAN

P. C

OPTION 1 -RCA Outputs

OPTION 2 -Speaker lead Outputs

(Note: You cannot use both RCA and

speaker lead inputs simultaneously!!)

Battery

Anybody’s leased car: high power In dash

FRONT

speaker lead

outputs

RCA

outputs

FRONT RCA

lead Inputs

HiZ

option 1

–

1 2 3 4 5 6 7 8 9 10 11

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Coustic 160SE Manuel du propriétaire Page 7

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