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Your Optimal Audio SmartAmp should require minimal maintenance and prove to be 

a reliable workhorse in your sound system

From time to time it may be necessary to clean the fan filters. SmartAmps are forced 

air cooled, and if located in certain environments the filters can become blocked, 

causing the amplifier to run at high temperatures, with the potential for shut down.

If in doubt, contact your distributor, who will help you with whatever you need to 

keep your Optimal Audio system running at its best.

Maintenance

14/20

SmartAmp

Amplifiers with DSP

Amplifiers

USER GUIDE

© 2021. Optimal Audio Group Ltd. (v1.0)

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

Summary of Contents for SmartAmp

Page 1: ...Amplifiers SmartAmp Amplifiers with DSP USER GUIDE ...

Page 2: ... in a straightforward style that reflects the Optimal Audio brand Congratulations on your choice of Optimal Audio for your latest sound system installation 2 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 Introduction Overview Start using Power up Rear panel Inputs Outputs Dip switches GPIO Installation Maintenance Tech specs Appendix A Appendix B Appendix ...

Page 3: ... sharing between pairs of channels low impedance or 70 100V output integrated DSP SmartAmp 30 Four channels of Class D amplification 250W each low impedance or 70 100V output integrated DSP 3 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 Introduction Overview Start using Power up Rear panel Inputs Outputs Dip switches GPIO Installation Maintenance Tech spe...

Page 4: ...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 Smar...

Page 5: ...connecting the amplifier 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 amplifier will wake up Amplifiers will not power up from standby mode unless an input signal is present Powering Up 5 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 ...

Page 6: ...l 3 Output Channel 4 Output Channel 1 Output Channel 1 Output Channel 2 Output Channel 2 6 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 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 ...

Page 7: ...Block connectors Connecting cables to the supplied female input connectors is illustrated below Input Connections 7 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 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 ...

Page 8: ...ed to negative speaker terminals Together with DIP switch configuration 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 con...

Page 9: ...1 1 28 Reserved Reserved Reserved Reserved 31 Reserved Reserved Reserved Reserved 29 Reserved Reserved Reserved Reserved 30 Reserved Reserved Reserved Reserved 26 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 Reser...

Page 10: ...by the front panel gain control setting GPIO V34 3 Channel 3 4 auxiliary gain control four channel amplifiers only Connect to a potentiometer 10kΩ wiper between the VCC and GND pins The maximum level available when using GPIO control is defined 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 cont...

Page 11: ...quipment rack The installation and equipment rack should be configured to provide appropriate ventilation airflow space around the sides and rear of the amplifier Ventilation airflow space of at least 25 mm 1 in should be maintained along at least one side of the amplifier at all times Ventilation apertures are also located on the rear panel of the amplifier and must not be obstructed It is import...

Page 12: ...tructed It is important to retain at least 80 mm 3 1 in free space for airflow behind the amplifier rear panel In addition to rack mount ears optional rack mount rear support hardware is available and can be attached to the amplifier Rear support hardware may be appropriate if the amplifier is to be used in a mobile rack or potentially be subject to significant movement Multiple SmartAmp 20 can al...

Page 13: ...dware The adhesive rubber feet should also be used in these circumstances Wall and desk mounting is illustrated above It is important in any free standing installation that airflow through the amplifier s side panel mounted fans and rear panel ventilation apertures is not compromised by adjacent items At least 80mm of free space behind the amplifier and 25mm along at least one side should be retai...

Page 14: ... causing the amplifier to run at high temperatures with the potential for shut down If in doubt contact your distributor who will help you with whatever you need to keep your Optimal Audio system running at its best Maintenance 14 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 Introduction Overview Start using Power up Rear panel Inputs Outputs Dip switches...

Page 15: ...B below rated power 0 05 20Hz 20kHz 8Ω load 3dB below rated power 0 05 20Hz 20kHz 8Ω load 3dB below rated power SLEW RATE 8 796V µS at 70V peak low impedence 17 77V µS at 100V peak high impedence 8 796V µS at 70V peak low impedence 17 77V µS at 100V peak high impedence 8 796V µS at 70V peak low impedence 17 77V µS at 100V peak high impedence DAMPING FACTOR 370 with 8Ω load 370 with 8Ω load 370 wit...

Page 16: ...ed Half Rack Units Long Rack ear Rack Ear Coupling Plate SmartAmp Support Bush 4 5 6 7 1 2 3 5 7 4 3 5 2 1 6 2 Appendix A 16 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 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 ...

Page 17: ...crew Flathead M4 x 8 1 2 3 2 2 2 1 3 2 Appendix B 17 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 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 ...

Page 18: ...Countersink M3 x 6 Black 1 2 Appendix C 18 20 SmartAmp Amplifiers with DSP Amplifiers USER GUIDE 2021 Optimal Audio Group Ltd v1 0 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 ...

Page 19: ...the cord use the plug 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does...

Page 20: ...Relax It s Optimal Audio Optimal Audio Group Ltd Century Point Halifax Road Cressex Business Park High Wycombe Buckinghamshire HP12 3SL optimal audio co uk ...

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