background image

4

5

Rear

 

panel

 

features

 

introduction

Rear view of 4-channel model fitted with Speakon Connectors

2

 

channel

 

version

shown

 

with

 

Neutrik

Speakon

 

output

connectors

DIP

 

switches

for

 

adjusting

 

key

features

(

See

 

below

)

XLR

 

connectors

 

for

inputs

 

and

 

loop

 

thru

4channel

 

version

shown

 

with

 

Neutrik

Speakon

 

output

connectors

Four-channel model shown. Two-channel versions have VPL and Bridge Mode switches for 

channel 1 and 2 only. All models have different VPL values. Functions are otherwise

identical.

6.2.2

 

The DIP switch features

The following features may be adjusted using the DIP 

switches on the rear

-

panel of

 

the amplifier. Gain-Globally 

set for all channels, from +23 dB to +44 dB in 3 dB steps.

Bridge 1+2 and 3+4 Switches the channel pairs into 

bridge mode operation an automatic -6 dB gain 

compensation is applied.

Output Connectors

Input Connectors

Speakon outputs-4-channel models

Audio inputs-4-channel models

Speakon outputs PARALLEL or STEREO models

Speakon outputs PARALLEL or STEREO models:

In stereo models, the signal input into chann

e

l 1 can 

be output from channel 1 only, similarly, the signal 

channel 3 is the same. In parallel models, the signal 

input into channel 1 or channel 3 can be output from 

channel 1 and channel 3.

Four-channel amplifiers

 

 Additional connectors are provided for channel 3 and channel 4. Channel 3 

functions as channel 1 above, and channel 4 as channel 2 above.

Mains

 

input

 

200V

-

240V

or

 1

00V

-

120V

 

operation

MODE
SWITCH
SOFT

HARD

M

O

D

E

VCL

70V

121V

101V

83V

150V

56V

47V

38V

CH1

M

O

D

E

VCL

CH2

M

O

D

E

VCL

CH3

M

O

D

E

VCL

CH4

B

R

ID

G

E

1

+

2

3

+

4

B

R

ID

G

E

ON

GAIN

41dB
38dB
35dB
32dB
29dB
26dB
23dB

44dB

VCL

-

VOLTAGE

 

CLIP

 

LIMITER

MODE
SWITCH
SOFT

HARD

M

O

D

E

VCL

70V

121V

101V

83V

150V

56V

47V

38V

CH1

M

O

D

E

VCL

CH2

M

O

D

E

VCL

CH3

M

O

D

E

VCL

CH4

B

R

ID

G

E

1

+

2

3

+

4

B

R

ID

G

E

ON

GAIN

41dB
38dB
35dB
32dB
29dB
26dB
23dB

44dB

VCL

-

VOLTAGE

 

CLIP

 

LIMITER

Mode-Select VCL mode

 to either Hard or Soft operation.

 

 For

 

channels driving sub-woofers 

and low-frequency drivers, 

 

it 

 

is recommended to use the Hard setting for optimal operation. 

For mid- and high-frequency drivers, always select Soft.

VCL-Voltage Clip Limiter

 adjustment is provided for eight discrete levels for each channel.

 Select the setting most appropriate for connected speakers. 

Rear

 

panel

 

features

 

introduction

Summary of Contents for Quattro 06

Page 1: ...Copyright 2017 Screen Excellence Ltd 136 Bentwaters Parks Rendlesham Suffolk IP12 2TW UK Version 1 0 06 4 Channel Power Amplifier USER MANUAL ...

Page 2: ...ment 20Hz 25kHz 0 5dB 0 10 110dB 20KΩ Balanced 10k Ω Unbalanced 23 26 29 32 35 38 41 44bB Speakon Conne ctors NEUTRIK 100 120V 50 60Hz or 200 240V 50 60Hz Contents 1 Importantnote 2 Controlelements 3 Rearpanelfeaturesintroduction 4 Rearpanelfeaturesintroduction 5 Audioinputandoutputconnections 6 OutputMode 7 ProfessionalPowerAmplifierSpecifications 8 8ΩStereoPower 4 625W 4ΩStereoPower 4 1250W 2ΩSt...

Page 3: ... Electrical energy can perform many useful funtions This unit has been engineered and manufactured to assure your personal safety Imporoper use can result in potential electrical shock or fire hazards In order not to defeat the safeguards observe the following precautions for its installation use and servicing Explanation of Graphical Symbols CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION RISK...

Page 4: ...r is equipped with the Speakon output connectors Speakon outputs 4 channel models 1 LEVEL CONTROL Calibrated detente potentiometers to alter the total gain of the power amplifier In order to avoid distortions in mixing consoles upstream these controls should normally be positioned between 0 and 10 The calibrated markings show the additional attenuation directly 2 PROTECT LED protection under mute ...

Page 5: ...nto channel 1 can be output from channel 1 only similarly the signal channel 3 is the same In parallel models the signal input into channel 1 or channel 3 can be output from channel 1 and channel 3 Four channel amplifiers Additional connectors are provided for channel 3 and channel 4 Channel 3 functions as channel 1 above and channel 4 as channel 2 above Mains input 200V 240V or 100V 120V operatio...

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