Table of Contents
Related Manuals for AUDIOFOCUS A Series
Summary of Contents for AUDIOFOCUS A Series
- Page 1 Four- channel amplifiers with DSP and remote control Opération Manual • Version 1.1 (English) A 354 SCiO A 704 SCiO A 1504 SCiO A 3004 SCiO © 2022 AUDIOFOCUS . All rights reserved. MADE IN BELGIUM September 2022 - www.AUDIOFOCUS.eu...
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Page 2: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS CAUTION: to reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel. The lightning flash with arrowhead sym- vice shall remain readily operable when the appa- bol, within an equilateral triangle, is in- ratus is installed or used. - Page 3 Customer participation is important to minimize the potential affects on the environment and hu- © 1999 - 2022 AUDIOFOCUS man health that can result from hazardous sub- All rights reserved. stances that may be contained in this product.
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Page 4: Table Of Contents
Audio menu PEQ Audio Menu X-OVER Audio menu Limiter Audio menu Signal generator Presets menu Hotspot menu Cloud menu Network menu 25 - 26 Notes on network About menu AUDIOFOCUS SCiO Software 27 - 46 Home page menu User gain menu... - Page 5 User Delay menu User EQ menu 29 - 31 User X-over menu 32 - 33 User Limiter menu 34- 35 Speaker preset menu Stereo link option Group menu 37 - 38 Group gain menu Group delay menu Group EQ menu 41 - 46 Settings menu 47 - 49...
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Page 6: Introduction
Thank you for choosing the AUDIOFOCUS A Series for your sound reinforcement needs. The all-new A Series is a professional amplifier series with feature built-in DSP and remote control over the cloud – securely. Log in to AUDIOFOCUS Cloud and remotely-manage your amplifiers from your office. -
Page 7: Before You Get Started
AC power cable Europe • Network cable (“straight” type) OPERATING ENVIRONMENT The A Series is designed to operate in mostnormal climates, at a temperature between 0 °C and 50 °C (32 - 122 °F), with relative humidity between 10% and 60%. -
Page 8: Front And Rear Panel Description
Daylight viewable colour OLED display. Function Icons Rotary control for menu navigation, data entry, etc. The control can also be pressed inwards, to perform an “Enter” action in the menu system. The A Series is powered on and off by a frontpanel switch. -
Page 9: Rear Panel
REAR PANEL IEC connector accepts worldwide operation Terminal block connector for remote applica- from 100-240Vac. A Series must be grounded tions, EN-54 ready. (earthed) with the safety ground pin to the mains distribution system. NEVER disconnect the earth (ground) pin on the mains cable (AC power cord). - Page 10 100 Mbps connection is present; the orange LED illuminates (static) to indicate a 1000 Mbps connection. The secondary network port on the A Series devices can be configured for redundancy of the primary network port. If a parallel network is created, any single cable or switch failure is overcome without loss of audio.
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Page 11: Signal Flow
SIGNAL FLOW The figure below depicts the audio signal flow for a A Series device. The signal flow can be divided in three main blocks, each with its own functionality and processing. These blocks are : input source, group and speaker blocks. -
Page 12: Group
GROUP Groups provide powerful control over all channels in a system. Amplifier channels can be assigned to multiple Groups, and each amplifier channel can be a member of up to 6 different Groups. Adjusting group parameters will affect all amplifier channels across the network assigned to that group. Multiple Groups can be used to logically partition a large-scale system. -
Page 13: Speaker
SPEAKER A speaker preset file contains one channel of loudspeaker setting information which can be recalled on an amplifier channel. The red properties below indicate the speaker preset parameters. The end user chooses a brand/type of loudspeaker in a list and doesn’t have to worry about the actual parameters. These speaker presets are created in the WebUI by the speaker OEM and can be uploaded and stored in the amplifier speaker preset folders. -
Page 14: Presets
PRESETS The A Series amplifier has two types of preset libraries, device and speaker presets. • A Global audio preset file contains all audio DSP settings of the four channels of the amplifier; User, Group and speaker parameters. • A speaker preset file contains one channel audio settings information which can be recalled on a amplifier channel. -
Page 15: Front Panel Operation
FRONT PANEL OPERATION The front panel gives the user access to the status of the amplifier and also gives the user the ability to set IP parameters and basic audio settings. There is only one encoder that is used to modify various parameters via the menu. -
Page 16: Settings Menu
SETTINGS MENU Pressing the encoder inwards will activate the selected settings submenu. Pressing “Return” will always return the menu up one level from every menu or sub menu. AUDIO MENU Mixer Gain Delay X-Over Limit Signal Générator Turning the encoder clockwise will acces the second page, where you can find the Signal Generator sub-menu. -
Page 17: Audio Menu/Mixer
AUDIO MENU/MIXER From the mixer sub menu, you can select the combination of inputs for each amplifier channel. There are twelve input options for each channel. Analog 1- 4, Stream L, Stream R, freq gen, pink noise andNetwork 1 - 4. The digital option card options are DANTE or AVB. -
Page 18: Audio Menu Gain
-80 dB to +15 dB, in 0.1 dB increments. AUDIO MENU/DELAY Each Source of the A Series may have up to 250 ms of delay inserted. Note: The total amount of delay per channel is 250 ms shared between the channel and the groups that are assigned from that channel. -
Page 19: Audio Menu Peq
AUDIO MENU/PEQ From the Parametric Equalizer sub menu, you can select with the encoder an amplifier channels Eq page to edit. The PEQ index indicates witch EQ is active from the selected channel. There are 12 EQ’s available for each channel. The Enable function, enables or disables the selected EQ. -
Page 20: Audio Menu/Xover
AUDIO MENU/XOVER From the XOVER sub menu, you can select with the encoder an amplifier channel XOVER page to edit. When selecting a XOVER channel to edit, it will open in the HIGH Pass window, a further encoder click will bring you to the LOW Pass window The Enable function, enables or disables the selected filter... -
Page 21: Audio Menu Limiter
AUDIO MENU/LIMITER From the Limiter sub menu, you can select with the encoder an amplifier channels limiter page to edit. There are six different modes for which you can enter limiter values, these are: Volt RMS, 2 Ohm load, 2,7 Ohm load,4 Ohm load, 8 Ohm load and 16 Ohm load. -
Page 22: Audio Menu Signal Generator
AUDIO MENU/SIGNAL GENERATOR Every A Series amp has a built in signal generator. There is a choice between pink noise or a sine wave generator with eight selectable frequencies: 50,100, 200 ,500,1000, 2000, 5000 or 10000 Hz. The level for both sources is adjustable from -50 to 0 dB. -
Page 23: Presets Menu
PRESETS MENU The A Series amplifier has two types of preset libraries, global and speaker presets. A global preset file contains all audio DSP settings of the four channels of the amplifier.(User,group and preset settings) A speaker preset file contains one channel’s loudspeaker settings information which can be recalled and inserted on the amplifier channel. -
Page 24: Hotspot Menu
Every A Series amplifier has an Hotspot option. This allows the user to control the amplifier with any mobile device. (Smartphone, Tablet or laptop). The software of the A Series is web based, so there is no need for a software installation. -
Page 25: Network Menu
IP addresses. After a connection is established with the router, the A Series device will receive an IP address that will displayed in the network menu. Enter this address in your device’s browser and the SCIO software will open on your device. -
Page 26: About Menu
IP address will be used; however this address may vary every time the device is connected to the network. If a DHCP server is available on the network then the A Series device will use the IP address provided by it. -
Page 27: Audiofocus Scio Software
As described in the front-panel section, the front panel control allows only basic sound operations for the user in the field. To explore all the functionally of the A SERIES amplifier, there is a additional off and online software solution: “AUDIOFOCUS SCIO”. -
Page 28: User Gain Menu
USER GAIN MENU Gain: opens a window where you can set gain and phase for any of the four inputs, regardless of what channel is selected. Gain can be set with the fader, keyboard arrows or by dialling in the desired level. A double click on the fader will reset the gain to 0 dB. -
Page 29: User Eq Menu
USER EQ MENU The A SERIES has a very powerful EQ section. Each amplifier channel can be processed by a total of 96 EQ filters.(12 filters in the user block, 72 in the group section and 12 in the speaker block). On top of that there is a FIR filter option available in the speaker block. - Page 30 To avoid accidental guesture operations in touch mode, there are three “Drag Locking” options. *Locks the gain setting for the selected filter. *Locks the gain setting for the selected filter. *Locks the freq setting when using a touch screen. The overview screen has different view options in the PEQ window Tap the View options icon to open the PEQ view options panel...
- Page 31 The PEQ view window uses different line and colours to indicate in an intuitive way what filters are active and which filter is in edit mode. The blue line indicates the active EQ curve of the PEQ Filter that is in edit mode.
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Page 32: User X-Over Menu
USER X-OVER MENU The A SERIES amplifier offers 19 different types of classic X-over filters :Bessel , Butterworth and Linkwitz Riley with slopes from 6 to 48 dB/oct in the user block. From the Home page tap the X-Over tab to access the X-Over main page. - Page 33 The overview screen has different view options in the X-Over window Tap the View options icon to open the PEQ view options panel The X-over view window uses different line and colours to indicate in an intuitive way what filters are active and which filter is in edit mode.
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Page 34: User Limiter Menu
USER LIMITER MENU Limiter: opens a window where you can adjust the limiter parameters for the selected output channel. To fully protect loudspeakers from damage, each output is provided with a two-stage limiter. One stage responds to the RMS level of the signal, the other is a very fast-acting limiter responding to signal peaks. The thresholds may be set independently for each stage, but note that the Peak threshold must always be higher than the RMS threshold. - Page 35 The calculator Icon in the RMS limiter section opens a window where you can dial in values from the connected speakers. The calculator will calculate start values for the RMS limiter. Click the apply button to copy the calculated values to the RMS limiter. The calculator Icon in the Peak limiter section opens a window where you can dial in values from the connected speakers.
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Page 36: Speaker Preset Menu
SPEAKER PRESETS MENU From the speaker preset page you can recall all the protected speaker preset files that are created from the SCIO speaker creator webui or those supplied from brand manufacturers. The preset file will be loaded in the selected channel. The current speaker preset running on the channel will be displayed with following icon around it “<... -
Page 37: Group Menu
GROUP MENU Groups provide powerful control over all channels in a system. Amplifier channels can be assigned to multiple groups, and each amplifier channel can be a member of up to six different groups. Adjusting group parameters will affect all amplifier channels across the network assigned to that group. Multiple Groups can be used to logically partition a large-scale system. - Page 38 Tap the edit Group tab to edit names for the six groups. Toggle the arrow to open or close the group assign view Selecting the Assign Group tab will for one or all amps in the open or close the Assign Group network.
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Page 39: Group Gain Menu
GROUP GAIN MENU Gain: opens a window where you can set gain and phase for the selected group. Values can be set with the fader, keyboard arrows or by dialling in the desired level. Gain range can be set from -80 to +15 dB. Group gain is a relative value that will add or detract gain from the amplifier channel that is part of the group. -
Page 40: Group Eq Menu
GROUP EQ MENU PEQ: opens a window where you can select twelve PEQ filters, for each of the selected group, with the same functionality as for the User PEQ menu (See section User EQ Menu on page 28). The group PEQ filters are on top of the User PEQ. Select one of the six groups to edit with these tabs. -
Page 41: Settings Menu
SETTINGS MENU A tab on the settings wheel Icon will bring you to all the available settings for the selected device. The Global Device Audio Preset menu gives access to the global preset folders and files. A Global audio preset file contains all audio DSP settings of the four channels of the amplifier;... - Page 42 The Status sub menu gives some technical information about the status of the amplifier. All the network settings are concentrated in this window. The A SERIES can be accessed in three different ways as described in the frontpanel part on pages 20 and 21.
- Page 43 A single A SERIES amplifier or a complete network of A SERIES devices can be accessed and controlled from any place in the world as long as both the A SERIES and the PC or mobile device are connected to the internet.
- Page 44 From this menu Spotify and Airplay streaming services can be activated and personalized. Make sure that your mobile device is on the same network as your A SERIES device. A unique spotify device name can be entered here. It will appear...
- Page 45 The output tab, opens a window where you can set the bridge mode for channel 1-2 and 3-4. The correct wiring details are also displayed. Keep in mind that the bridge settings are not stored in the global or speaker preset! Checking the Output tab option opens a window where you can set channels one and two and (or) channels three and four for in bridge...
- Page 46 When the bridge mode is engaged, the Enable tab turns red and the according connector scheme is indicated. The speaker is connected between the positive poles of both amplifier channels, the negative poles are not used. When a pair of channels is in bridge mode, both channels controls are collapsed into one channel in all control pages.
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Page 47: Firmware Update
Download the zip file : Turn « On » the amplifier Disconnect speaker cables Open your browser to the A SERIES UI interface : Go to « Settings » Go to « Settings » Select « Firmware Update » tab... - Page 48 Click « Browse » to select the downloaded zip file (A SERIES_v1.1.zip) Go to « Settings » Select « Firmware Update » tab...
- Page 49 Press « Update Now » button Update Now Update procedure is now started 10. After a few seconds, the front panel screen of the amplifier will become black, update is running on back- ground. After a few minutes, the screen will go back to normal. At this point, you can manually restart your amplifier.
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Page 50: Application Examples
APPLICATION EXAMPLES SINGLE AMPLIFIER EXAMPLE WITH ANALOG INPUTS In this bar example, the two rooms are equipped with their own speaker system comprising of a bar zone with ceiling mount loudspeakers and a dancing area with a stereo set of full range loudspeakers. Each of the systems is able to play any of the selected analog sources. -
Page 51: Dual Amplifier Example With
DUAL AMPLIFIER EXAMPLE WITH ANALOG INPUTS In this restaurant example, the four rooms are equipped with their own speaker system comprising of a bar zone with full range loudspeakers a concert area with a small PA system, a restaurant with ceiling loudspeakers and the rest rooms, also equipped with ceiling loudspeakers. -
Page 52: Dual Amplifier Example With Kara
DUAL AMPLIFIER EXAMPLE WITH KARAOKE AREA In this restaurant example, the four rooms are equipped with their own speaker system comprising of a bar zone with full range loudspeakers a Karaoke area with a small PA system, a restaurant with ceiling loudspeakers and the rest rooms, also equipped with ceiling loudspeakers. -
Page 53: Large Set Up Example With Analog
LARGE SET UP EXAMPLE WITH ANALOG AND DIGITAL INPUTS AND REMOTE CLOUD CONTROL In this museum example, all the zones are equipped with their own speaker and amplifier system. The A SERIES devices are connected to a central switch with standard network cabling. Settings can be done with either the central local computer or from a remote location over internet. -
Page 54: Specifications
SPECIFICATIONS Operating conditions Temperature 0° to 50° C, 10 to 60 % non-condensing Storage temperature -20° to 70° C Safety / Compliance CB Cerificate Amplification and power supply Amplification class Class D Glide Path technology Power supply model Universal switch mode power supply’s with active PFC Power Factor >... - Page 55 Two channels internal streaming source supporting Spoti- fy en Airplay Remote control and monitoring Network connection Single port Ethernet Gigabit interface AUDIOFOCUS remote control software SCIO- Webbased Front panel indicators Daylight viewable colour OLED display Real time level , limit and fault indicators...
- Page 56 Amplifier Model A 354 A 704 A 1504 A 3004 Total burst power (all channels driven) 1400 2800 6000 12000 2 ohms 1500 3000 4 ohms 1500 3000 8 ohms 1500 2000 16 ohms 1000 1000 Hi-Z 70V 1500 1500 Hi-Z 100V 1500 2500...
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Page 57: Limited Warranty
This limited warranty covers only repair or replacement for defective products manufactured by AUDIOFOCUS. AUDIOFOCUS is not liable for, and does not cover under warranty, any loss of data or any costs associated with determining the source of system problems or removing, servicing or installing AUDIOFOCUS products. This warranty excludes 3rd party software, connected equipment or stored data.
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