Optimal audio Smartamp User manual

Ampliers

SmartAmp

Ampliers with DSP

USER GUIDE

The Optimal Audio range of

compatible audio zoners, controller,

ampliers and loudspeakers are

designed to work together simply

and effectively. Our quick start

guides will take you through

connectivity and set up in a

straightforward style that reects the

Optimal Audio brand.

Congratulations on your choice of Optimal Audio

for your latest sound system installation.

2/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

There are three ampliers in the SmartAmp range:

SmartAmp 10

Two channels of Class D amplication, 125W each with power sharing, low

impedance or 70 – 100V output, integrated DSP

SmartAmp 20

Four channels of Class D amplication, 125W each with power sharing between

pairs of channels, low impedance or 70 – 100V output, integrated DSP

SmartAmp 30

Four channels of Class D amplication,

250W each, low impedance or 70 – 100V

output, integrated DSP

3/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

All SmartAmps come loaded with DSP presets for Optimal Audio Up series

ceiling speakers and the smaller models in the Cuboid range. Presets are easily

selected via the dip switches on the rear panel. Presets can be found later in this

guide.

SmartAmp 10 and 20 offer increased exibility through power sharing between

pairs of channels. This means that if the power requirement on one channel of an

adjacent pair is required to deliver more that its rated 125W, it can draw unused

power from its partner channel, assuming it has the power available.

This does not apply for SmartAmp 30, which offers 4 channels of 250 W.

All SmartAmp models use identical connectors, which are supplied with the

units. Inputs are 3.5mm pitch green Euro Block connectors. Amplier outputs are

5mm pitch green Euro Block connectors. Refer to the diagrams on the rear panel

of SmartAmp for the correct wiring, and the Optimal Audio Connectors and

Cables, Lights and Labels Quick Start Guide, which will help you get the wiring

right.

• Connect the output of your Optimal Audio Zone 4 or 8 that relates to the

loudspeakers in the area you want your SmartAmp to power

• Once you have connected everything up, plug your SmartAmp into the mains

power and turn it on

• Turn the relevant amplier channel volume knob all the way up

• Apply signal and the amplier will automatically wake up, the front panel LED

turning from red (standby) to green (operational)

• Green LED’s will illuminate on the channels to which signal is applied.

Start using your SmartAmp

4/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

240V AC, 50/60Hz. Use the mains cable appropriate to your region as supplied

with the amplier and connect it to a switched mains supply.

SmartAmp ampliers have no mains power switch and are operational as

soon as mains power is connected. Ensure that all signal, GPIO and output

connections are made and that all DIP switch options are selected appropriately

before connecting the amplier to mains power.

NOTE

SmartAmps are Energy Star compliant and will sleep when not in use to

minimize energy consumption. On receiving a signal at the input above

-47dBu the amplier will wake up.

Ampliers will not power up from standby mode unless an input signal is

present.

Powering Up

5/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

SmartAmp 10

SmartAmp 20 & SmartAmp 30

Rear Panel Connections & Controls

GPIO

Input Channel

1 & 2

Input Channel

1 & 2

Input Channel

3 & 4

Output Channel

6/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

SmartAmp inputs are of balanced, line level format and require the use of

suitable two-core, screened signal cable.

Input connections to SmartAmp are achieved via male ‘Euro Block’ connectors.

Connecting cables to the supplied female input connectors is illustrated below

Input Connections

7/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

All channels are capable of both Low-Z and Hi-Z (70V or 100V) outputs.

Output impedance is selected by a combination of the impedance switches

and the active preset. Where presets include subs, these channels are xed

at low impedance.

It is critical that the correct connections are made using the appropriate

‘Euro Block’ connectors, supplied with the unit. Again, ensure the amplier is

off when connecting loudspeakers and check that you have used the correct

combination of pins for your application.

Be aware that the Hi-Z output pins can deliver voltages up to 100 volts!

Output connections from SmartAmp are achieved via male ‘Euro Block’

connectors. Ensure that speaker connection polarity is correct throughout

the installation: positive (+) amplier terminals should always be connected

to positive speaker terminals and negative (–) amplier terminals always

connected to negative speaker terminals.

Together with DIP switch conguration, the output connector blocks provide

connection options that enable channel independent selection of Hi-Z or

Low-Z mode. Connecting cables to the supplied female output connector,

and the selection of Hi-Z or Low-Z connection options as shown in the

diagram.

Loudspeaker Outputs

Ch1: Low-Z connection

Ch2: Hi-Z connection

Ch3: Hi-Z connection

Ch4: Low-Z connection

The caution symbol printed next to the

OUTPUT terminals of the SmartAmp

amplier is in addition to the “CLASS

2 WIRING” text intended to alert the

user to the risk of hazardous energy.

Output connectors that could pose a

risk are marked with caution symbol.

Do not touch the output terminals while

the amplier power is on. Make all

connections with the amplier turned off.

8/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

The dip switches allow you to

select the recommended DSP

presets for the Optimal Audio

Up series of ceiling speakers,

Cuboid 8, Cuboid 10 and Sub

10. The following tables contain

all the presets available in

SmartAmp 10, 20 and 30. Be

sure to use the correct table

for the amp you are using, as

SmartAmp 10 has different

preset allocations to SmartAmp

20 and 30.

Please note that only the

rst 5 switches are used for

loudspeaker preset selection.

SmartAmp Presets – white

squares show switch position.

Dip Switches

SmartAmp 10

Preset No. Speaker Configuration Phase 1

CH1 CH2 12345

22222

2 2 2 2

1 1

2 2 2

2 2 2 2

1 1

2 2 2

1 1

2 2 2

111

2 2

2 2 2 2

1 1

2 2 2

1 1

2 2 2

1 1 1

2 2

1 1

2 2 2

1 1 1

2 2

1 1 1

2 2

1 1 1 1

2 2 2 2

1 1

2 2 2

1 1

2 2 2

1 1 1

2 2

1 1

2 2 2

1 1 1

2 2

1 1 1

2 2

1 1 1 1

1 1

222

1 1 1

2 2

1 1 1

2 2

1 1 1 1

1 1 1

2 2

1 1 1 1

11111

Reserved

Reserved Reserved

Reserved

Up 4

16 Sub 10 Up 4O

Reserved

Reserved Reserved

Sub 10 Up 6

Reserved Reserved

Reserved

10 Reserved Reserved

Sub 10 Up 4S

Reserved

13 Sub 10 Sub 10

14 Sub 10 Up 3

Sub 10

Up 4S Up 4S

11 Reserved Reserved

6Reserved Reserved

Reserved

8Reserved Reserved

9Reserved

5Up 6 Up 6

0No Processing No Processing

1Up 3 Up 3

2Up 4 Up 4

Up 4O

SmartAmp 20 & 30

Preset No. Speaker Configuration Phase 1

CH1 CH2 CH3 CH4 12345

22222

2222

2 2 2 2

1 1

222

2 2 2 2

1 1

2 2 2

1 1

2 2 2

1 1 1

2 2

2 2 2 2

1 1

2 2 2

1 1

2 2 2

1 1 1

2 2

1 1

2 2 2

1 1 1

2 2

111

2 2

1 1 1 1

2 2 2 2

1 1

222

1 1

2 2 2

1 1 1

2 2

1 1

2 2 2

1 1 1

2 2

1 1 1

2 2

1 1 1 1

1 1

2 2 2

1 1 1

2 2

1 1 1

2 2

1 1 1 1

111

2 2

1 1 1 1

1111

11111

28 Reserved Reserved Reserved Reserved

31 Reserved Reserved Reserved Reserved

29 Reserved Reserved Reserved Reserved

30 Reserved Reserved Reserved Reserved

Reserved

27 Reserved Reserved Reserved Reserved

24 Reserved Reserved Reserved Reserved

25 Reserved Reserved Reserved Reserved

22 Sub 10 Cuboid 10 Sub 10 Cuboid 10

23 Reserved Reserved Reserved Reserved

20 Reserved Reserved Reserved Reserved

Sub 10

Cuboid 8

Sub 10

Cuboid 8

18 Reserved Reserved Reserved Reserved

19 Reserved Reserved Reserved Reserved

16 Sub 10 Up 4S Sub 10 Up 4S

17 Sub 10 Up 6 Sub 10 Up 6

14 Sub 10 Up 4 Sub 10 Up 4

15 Sub 10 Up 4O S ub 10 U p 4O

Sub 10

13 Sub 10 Up 3 Sub 10 Up 3

10 Cuboid 8 Cuboid 8 Cuboid 8 Cuboid 8

11 Cuboid 10 Cuboid 10 Cuboid 10 Cuboid 10

8Reserved Reserved Reserved Reserved

9Reserved Reserved Reserved Reserved

6Reserved Reserved Reserved Reserved

Reserved

4Up 4S Up 4S Up 4S Up 4S

5Up 6 Up 6 Up 6 Up 6

2Up 4 Up 4 Up 4 Up 4

Up 4O

0No Processing No Processing No Processing No Processing

1Up 3 Up 3 Up 3 Up 3

DIPS 6 7

DIPS 8

Trim gains disabled

Trim gains enabled

Low-Z 8 ohms

High-Z 100V

Low-Z 4 ohms

High-Z 70V

DIPS 6 7

DIPS 8

Trim gains disabled

Trim gains enabled

Low-Z 8 ohms

High-Z 100V

Low-Z 4 ohms

High-Z 70V

DIPS 6 7

DIPS 8

Trim gains disabled

Trim gains enabled

Low-Z 8 ohms

High-Z 100V

Low-Z 4 ohms

High-Z 70V

DIPS 6 7

DIPS 8

Trim gains disabled

Trim gains enabled

Low-Z 8 ohms

High-Z 100V

Low-Z 4 ohms

High-Z 70V

SmartAmp standalone mode

+4dBu input level gives maximum

amplier output

Front panel volume controls active

SmartAmp used with a Zone

processor

+20dBu input level gives maximum

amplier output

Front panel volume controls inactive

and levels set to unity.

9/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

The GPIO connectors enable remote control of key parameters of SmartAmp:

*In order to conform to EMC specications, shielded cable must be employed

when connecting external volume control potentiometers to the GPIO connectors.

This is to prevent the cable acting as an antenna for any radiated emissions from

within the amplier.

Be sure to use the appropriate Euro Block connector for the GPIO inputs

GPIO (General Purpose In/Out) Connections

Function Notes

GPIO GND (1) Ground reference for all GPIO pins

GPIO v12 (2) * Channel 1 & 2 auxiliary gain

control

Connect to a potentiometer (>10kΩ) wiper between

the VCC and GND pins. The maximum level available

when using GPIO control is dened by the front panel

gain control setting.

GPIO V34 (3) * Channel 3 & 4 auxiliary gain

control (four channel ampliers

only)

Connect to a potentiometer (>10kΩ) wiper between

the VCC and GND pins. The maximum level available

when using GPIO control is dened by the front panel

gain control setting.

GPIO VCC (4) Control voltage output Provides a 3.3V DC control output (100Ω

output impedance) for up to two volume control

potentiometers (>10kΩ)

GPIO STB (5) Alarm Mute Connect to GND pin to mute the unit and place it in

standby mode

GPIO GPO (6) Mute Out OV DC indicates normal status, +3.3V DC indicates

one or more channels in protection mode

10/20

SmartAmp

Ampliers with DSP

Ampliers

USER GUIDE

Introduction

Overview

Start using

Power up

Rear panel

Inputs

Outputs

Dip switches

GPIO

Installation

Maintenance

Tech specs

Appendix A

Appendix B

Appendix C

Safety info

Table of contents

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