HPA SY-A8412H, SY-A8224H, SY-A8148H Owner's Manual

Owner’s Manual

SY-A8412H

SY-A8224H

SY-A8148H

Public Address Multi-Channel Mixer Amplier

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

0 0 0 0 0 0 0 0 0

MUTE

0+10

LEVEL

POWER

ON

OFF

-15+15

-15+15

-15+15

HIGH

-15+15

LOW

-15+15

MID

HIGH

LOW

MID

HIGH

LOW

MID

HIGH

LOW

MID

-15+15

-15+15

-15+15

-15+15

-15+15

-15+15

-15+15

HIGH

-15+15

LOW

-15+15

CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 CH 8

MASTER

PROT

CLIP

0

-10

SIG

1CH MIXING AMPLIFIER

SY-A8148H

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

0 0 0 0 0 0 0 0 0 0 0 0

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

MUTE

MUTE MUTE

MUTE

0+10

LEVEL

CH 1

CH 2

CH 3

CH 4

POWER

ON

OFF

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

CH 1 CH 2 CH 3 CH 4 CH 5

CH 6

CH 7 CH 8

MASTER 4MASTER 3

MASTER 2

MASTER 1

-10

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

SIG

4CH MIXING AMPLIFIER

SY-A8412H

-15+15

HIGH

-15+15

HIGH

-15+15

HIGH

-15+15

HIGH

-15+15

-15+15

MID

MID

MID

MID

-15+15

-15+15

-15+15

MID

MID

MID

MID

-15+15

-15+15

-15+15

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

0 0 0 0 0 0 0 0 0 0

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2 MUTE

MUTE

0+10

LEVEL

CH 1

CH 2

POWER

ON

OFF

-15+15

-15+15

-15+15

HIGH

-15+15

LOW

-15+15

MID

HIGH

LOW

MID

HIGH

LOW

MID

HIGH

LOW

MID

-15+15

-15+15

-15+15

-15+15

-15+15

-15+15

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 CH 8

MASTER 2MASTER 1

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

2CH MIXING AMPLIFIER

SY-A8224H

WARNING

SY-A8412H / SY-A8224H / SY-A8148H

1

Table of contents

Introduction .............………………………………………….2

Features .................……………………………………………3

Front panel controls..........…………………………………..4

Rear panel controls .....………………………………………6

Block diagram ..............………………………………………8

Specications ........…………………………………………...9

SY-A8412H / SY-A8224H / SY-A8148H

2

Introduction

Introduction

Welcome

Congratulation and thank you for purchasing SY-A series multi-channel

constant voltage power amplifier.

Unpacking and Installation

Although it is neither complicated to install nor difficult to operate Pre Am-

plifier, a few minutes of your time is required to read this manual for a prop-

erly wired installation and becoming familiar with its many features and

how to use them. Please take a great care in unpacking your set and do

not discard the carton and other packing materials. They may be needed

when moving your set and are required if it ever becomes necessary to

return your set for service. Never place the unit near radiators, in front of

heating vents, excessive humid or dusty location to avoid early damage

and for your years of quality use.

Connect your unit with the system components according to the descrip-

tion on the following pages.

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

0 0 0 0 0 0 0 0 0 0 0 0

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

MUTE

MUTE MUTE

MUTE

0+10

LEVEL

CH 1

CH 2

CH 3

CH 4

POWER

ON

OFF

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

CH 1 CH 2 CH 3 CH 4 CH 5

CH 6

CH 7 CH 8

MASTER 4MASTER 3

MASTER 2

MASTER 1

-10

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

SIG

4CH MIXING AMPLIFIER

SY-A8412H

-15+15

HIGH

-15+15

HIGH

-15+15

HIGH

-15+15

HIGH

-15+15

-15+15

MID

MID

MID

MID

-15+15

-15+15

-15+15

MID

MID

MID

MID

-15+15

-15+15

-15+15

SY-A8412H / SY-A8224H / SY-A8148H

SY-A8412H / SY-A8224H / SY-A8148H

3

Features

Features

• Controls

– Front : 4 Mic/Line Input Level(CH1-4) with 3-band EQ and selector

switches.

4 Line Input Level (CH5-8) with selector switches.

4 Output Level with 2 Tone control and Mute switch.

Monitor Level with selector switches.

– Rear : 8 Gain control for each input.

Talkover switch for CH1.

Phantom Power switches for CH1 and CH2-4.

• Connectors

– 4 XLR Electronically Balanced jack and 1/4” phone jack for CH1-4 input.

– 4 1/4” phone jack and RCA jack for CH5-8 input.

– RJ45 jack for Remote operation.

– Euro Block for 4 output.

• Indicators: Power. SIG, CLIP for each input channel and SIG,-

10dB,0dB, CLIP,PROT for each output channel.

SY-A8412H / SY-A8224H / SY-A8148H

4

Front Panel Controls

Front Panel Controls

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

PEAK

SIG

0 0 0 0 0 0 0 0 0 0 0 0

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

MUTE

MUTE MUTE

MUTE

0+10

LEVEL

CH 1

CH 2

CH 3

CH 4

POWER

ON

OFF

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

HIGH

-15+15

LOW

-15+15

CH 1 CH 2 CH 3 CH 4 CH 5

CH 6

CH 7 CH 8

MASTER 4MASTER 3

MASTER 2

MASTER 1

-10

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

-10

SIG

PROT

CLIP

0

SIG

4CH MIXING AMPLIFIER

SY-A8412H

-15+15

HIGH

-15+15

HIGH

-15+15

HIGH

-15+15

HIGH

-15+15

-15+15

MID

MID

MID

MID

-15+15

-15+15

-15+15

MID

MID

MID

MID

-15+15

-15+15

-15+15

1 2 3 7 8 9

4 5 6

10 11 14

15 16

12

13

1. INPUT CHANNEL EQ CONTROLS

These controls allow to equaliza the input signal from -12dB to +12dB at
80Hz(LOW),2.5kHz(MID) and 12.5kHz(HIGH) for CH1~CH4.

2. SIGNAL INDICATORS

These indicators show current input signal on the each input channels.

3. PEAK INDICATORS

These indicators warn against overload shortly on the each input channels.
We would like to recommend for users to adjust TRIM control on the rear
panel when PEAK indicators are flickering to make best performance.

4. INPUT CHANNEL FADER

These allow to adjust for each input level.

5. OUTPUT CHANNEL SELECTORS

These selectors allow to route each input signal through out to selected
output channels.

6. OUTPUT CHANNEL EQ CONTROLS

Output channels have two band equalizer which is adjustable over a wide
range as follow.
HIGH : ±15dB at 12KHz / LOW : ±15dB at 80Hz

SY-A8412H / SY-A8224H / SY-A8148H

5

7. OUTPUT LEVEL METER

These indicators show current output level.

8. CLIP INDICATORS

These indicators warn against overload shortly on the each output chan­nels. We would like to recommend for users to adjust FADER control when
CLIP indicators are flickering to make best performance.

9. PROTECT INDICATORS

These indicators show to be protected amplifiers due to over current or
over heat.

10. MUTE SWITCH

These buttons allow to mute for each output channels.

11. OUTPUT FADER

These faders allow to adjust the level for each output channels.

12. POWER INDICATOR

This indicator lights when power switch is turned on.

13. POWER SWITCH

This button is power on/off switch.

14. MONITOR SWITCH

These switches allow you to monitor each output channel through monitor
speaker.

15. MONITOR OUTPUT CONTROL

This control allow to adjust the monitor level of monitor speaker.

16. MONITOR SPEAKER

Front Panel Controls

SY-A8412H / SY-A8224H / SY-A8148H

6

Rear Panel Controls

Rear Panel Controls

WARNING

DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE

AVERTISSEMENT

NE PAS EXPOSER CET APPAREIL À LA

PLUIE OU À OU À L'HUMIDITÉ

CAUTION

FOR CONTINUED PROTECTION

AGAINST RISK OF FIRE, REPLACE

ONLY SAME TYPE FUSE

ATTENTION

UTILISER UN FUSIBLE DE RECHANGE

MEME TYPE

AVIS

RISQUE DE CHOC ELECTRONIQUE

NE PAS OUVRIR

WARNING

DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE

AVERTISSEMENT

NE PAS EXPOSER CET APPAREIL À LA

PLUIE OU À OU À L'HUMIDITÉ

CAUTION

FOR CONTINUED PROTECTION

AGAINST RISK OF FIRE, REPLACE

ONLY SAME TYPE FUSE

ATTENTION

UTILISER UN FUSIBLE DE RECHANGE

MEME TYPE

AVIS

RISQUE DE CHOC ELECTRONIQUE

NE PAS OUVRIR

MIC

LINE

PHANTOM

MIC

LINE

MIC

LINE

MIC

LINE

CHANNEL 1CHANNEL 2CHANNEL 3

CHANNEL 4

CHANNEL 1

LINE

CHANNEL 5

LINELINELINE

LINE

LINE

LINELINE

CHANNEL 6CHANNEL 7CHANNEL 8

LINE 1-4LINE 5-8

REMOTE INPUTREMOTE INPUTREMOTE INPUTREMOTE INPUT

ON

OFF

TRIM

PRIORITY

-6/+14 -50/-30

TRIM

-6/+14 -50/-30

TRIM

-6/+14 -50/-30

TRIM

-6/+14 -50/-30

TRIM

+14+14+14+14 -30-30-30-30

TRIMTRIMTRIM

OUTPUT

AMP AMP AMP AMP

CHANNEL 2CHANNEL 3CHANNEL 4

MADE IN CHINA

DESIGNED AND ENGINEERED IN KOREA

100V

COM

100V

COM

100V

COM

100V

COM

PHANTOM 2-4

ON

OFF

RJ45RJ45RJ45RJ45

1 3 5

2 4 476

~AC INPUT
230V 50Hz, 173W
FUSE T4AL/250V

1. AC POWER INPUT CONNECTOR

Acorrect capacity of fuse and power cable should be applied. Please
make sure the value of fuse before replacing.

2. REMOTE INPUT

These RJ45 jacks allow to connect with WP1(wall control panel) for ad­justing volume and inserting music source of remote area.

LINE

010

5

ACTIVE

MIC

WALL CONTROL

WP1

VOL

ON

PUSSH

SY-A8412H / SY-A8224H / SY-A8148H

7

Rear Panel Controls

3. AMPLIFIER OUTPUTS

These amplifier output blocks provide 100V constant voltage output for
commercial and industrial use.

4. TRIM CONTROLS

These controls allow to accept variable input level. They have 44dB
adjustable range as -50dB to -6dB for microphone input channels and

-30dB to +14dB for line input channels.

5. SIGNAL INPUTS

This amplifier provide several connectors for signal input and these con­nectors allow easy connection.
The channel 1~4 are balanced line and microphone input and channel
5~8 are mono line input.

6. PRIORITY SWITCH

All other input signals are muted by the input signal of channel 1 auto­matically when this switch pressed on.

7. PHANTOM POWER SWITCH

The phantom power can be provided to each microphone input for using
condenser microphone.

SY-A8412H / SY-A8224H / SY-A8148H

8

Block Diagram

Block Diagram

SY-A8412H / SY-A8224H / SY-A8148H

9

Specifications

Specications

SY-A8412H SY-A8224H SY-A8148H

Rated Output Power 120W X 4CH 240W X 2CH 480W X 1CH

Output / Impedance 100V (83 Ω) 100V (42 Ω) 100V (21 Ω)

Input sensitivity
/ Impedance

Mic Input - 50dB~ - 6dB / 20KΩ Balanced

Line Input -30dB~ + 14dB / 20KΩ Balanced

Frequency Response (-1dB) 20Hz - 20kHz

T.H.D < 0.1%

Closstalk > 70 dB

Equalization

Input

High : 12 kHz ± 15 dB / Mid : 2.5 kHz ± 15 dB /

Low : 80 Hz ± 15 dB

Output High : 12 kHz ± 15 dB / Low : 80 Hz ± 15 dB

S/N Ratio

EIN > 127 dB

Residual Noise > 90 dB

Power Source AC 230 Volt, 50~60Hz
Weight (Net) 9 kg
Dimensions (W x H x D) 420 x 88 x 320mm

* Specications and design subject to change without notice for improvements.