Customized version of http://www.thingiverse.com/thing:590871

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=590871

Using the following options:

terminalNotchInset = 2.2
makeTerminalNotch = false
portWallThickness = 8
speakerScrewHoleSpacing = 33
terminalNotchOvalHeight = 20
terminalNotchOvalWidth = 24.5
speakerScrewHoleDiameter = 2
holeAngle = 52
trenchDepth = 2
makeBassPort = true
speakerMountDiameter = 33
numberOfSpeakerScrewHoles = 3
terminalNotchRotation = 180
speakerHoleDiameter = 37
wireHole2Diameter = 0
wireHole1Angle = 160
portLength = 50
portInternalDiameter = 15
sphereVolumeLiters = 1.5
manualSphereInternalDiameter = 100
flatBottomOfPrintDiameterIfNoBassPort = 20
useManualSphereInternalDiameter = true
speakerMountCountersink = 3
markingThickness = 0.5
wireHole1Diameter = 2.5
sphereWallThickness = 5
wireHole2Angle = 270