Monitor Audio Airstream s150 User manual

Page 1 AIRSTREAM S150
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S150
InstructionManual
DRAFT
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Page 2 AIRSTREAM S150
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Contents
1Introduction....................................................................................................................................3
2ElectronicSpecificationOverview...................................................................................................3
2.1PSU..........................................................................................................................................3
2.2PowerAmpsection.................................................................................................................3
2.3Otherfeatures.........................................................................................................................3
ARMCortexM4...........................................................................................................................3
3Control............................................................................................................................................3
3.1LocalControls..........................................................................................................................3
3.2Indicatorsandfunctionality....................................................................................................5
3.2.1LEDStates
........................................................................................................................5
3.2.2Functionality...................................................................................................................5
3.2.3ButtonControls...............................................................................................................5
4Packaging........................................................................................................................................5
4.1.1Packinaccessories..........................................................................................................5
5Specifications..................................................................................................................................6
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Thisdocumentisintendedtobeusedasareferenceforthesupplier.Itisdesignedtoclearly
communicateallthekeydesignfeaturesandreasoningbehindthedesignsupplied.
Note:Thisdocumentcontainsconfidentialinformationthatshouldnotbedistributedtothird
partieswithoutpriorconsentfromtheMonitorAudioboardofDirectors.
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Page 3 AIRSTREAM S150
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1 Introduction
AcompactBluetoothspeakersystemwithBluetoothonlyfunctionality.Theacousticsystemisbased
arounda3amplifierplatformdriving2xfullrangedriversand1x19mmtweeter.Thefunctionality
willbethesameasotherAirstreamproductsandincorporatethesameUIfeatures.Theunitwillbe
mainspowered.
2 Electronic Specification Overview
2.1 PSU
TheoutboardPSUadaptorisauto‐rangingfrommainsinputof94‐264Vac(100‐240v
nominalworkingvoltagerange)andwithaminimumoutputof17V/2300mA(40W)
ThePSUadaptorstylewillbedesignedtofitontoawallsocketandfeaturereplaceableplug
pinsfor;U.S.A,U.K,EU;
2.2 Power Amp section
3x20W@6Ωfordrivers
ClassDamplifiers
<1%THD+N(fullpower)
2.3 Other features
ARMCortexM4
aptXcodecforBluetooth
3 Control
3.1 Local Controls
Localisedcontrolsshouldinclude:
Volumeup/down(sidemounted)
Poweron/standby(frontmounted)
Auxiliaryinputbutton(sidemounted)
Bluetoothsourcebutton‐usingBTlogo.(sidemounted)
Bluetoothpairingbutton(rear)
Localisedinputsandconnectionsshouldinclude:
3.5mmmini‐jack(auxinput)
DCinputbycoaxialconnector
USBtypeAconnectorforgeneric5vchargingpurposes(Applecharging?)–removedApple
authenticationchip.
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Page 4 AIRSTREAM S150
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Figure1.‐AirstreamS150LocalControls
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Figure2.‐AirstreamS150InputsandConnections
POWERON/
STANDBY
VOLUMEUP/DOWN
BLUETOOTHSOURCE(BT
STDLOGO)
AUXILLIARYSOURCE
(AUXLOGO)
DCINPUT
USBCHARGING
(CHARGELOGO)
BTPAIRING
(CONNECTLOGO
FROMA100)
3.5MM
MINI‐JACK
(AUXLOGO)

Page 5 AIRSTREAM S150
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3.2 Indicators and functionality
3.2.1 LED States
1. SolidGreen–Auxiliaryinput
2. FlashingCyan–Bluetoothsearching
3. SolidCyan–BluetoothPaired/Connected
3.2.2 Functionality
Whenthepowerbuttonispressedorthepowerleadispluggedin,thedevicewillpoweron
andinitialise.ThedevicewillfindandconnecttothelastBTpaireddeviceandthenreturn
towhicheversourcewaslastselected(ifavailable).Theusercanthenscrollthroughthe
availablesourcesbypressingthesourceselectbutton
BluetoothshouldremainconnectedtotheBTdevice,evenwheninAuxmode.Whenplaying
aBTtrackandAuxisselected,theBTmoduleshouldsendasignaltothedevicetopausethe
track.
3.2.3 Button Controls
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Figure3.–SideButtonControls
4 Packaging
4.1.1 Pack in accessories
PSUadaptor+plugpins
QuickStartGuide
SafetyInstructions
POWER
LEDINDICATOR
AUXSOURCE
BUTTON
VOLUME
BLUETOOTH
SOURCEBUTTON

Page 6 AIRSTREAM S150
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5 Specifications
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S150
Frequency Response 80Hz - 20kHz
Maximum SPL 94dB
Power Output (RMS)
Bass: 2 x 15 watts (<1% THD+N, 100Hz)
Tweeter: 1 x 10 watts (<2% THD+N,
10,000Hz)
Drive Unit Complement
2 x 3” (76mm) C-CAM® Cone Bass Driver
2 x 3/4” (19mm) C-CAM® Gold Dome
Tweeter
System Configuration 2 Way, Rear ABR Loading
Auxiliary Input Impedance/ Sensitivity 10k Ohms/ 300mV
Signal to Noise Ratio > 60dB
DAC 28 - 56 Bit dual precision
Input Voltage 100 - 240v for Power Adapter
Amplifier Category Class D
Power Consumption Standby: < 0.5W
Rated: 70W
Electrical Approvals ETL/ CE/ Fcc/CB/ ErP/ Wi-Fi/ Wi-Fi WMM/
Bluetooth/ Apple MFi Certified
Dimensions (each) (H x W x D) 274 x 120 x 137mm (10 13/16 x 4 3/4 x 5 3/8”)
Colour/ Finish Charcoal Grey with Black Grille Cloth
White with Light Grey Grille Cloth
Weight (each) 2.25Kg (5lb 4oz)
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