User's Guide


Page 3 AIRSTREAM S150


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tweet er.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.
