SF:
•
Passive sound field speaker, using the built-in amplifier inMADSEN Astera², or
•
Sound field speaker with built-in amplifier or external amplifier, with both types
using the line output from MADSEN Astera².
Transducer options depend on how MADSEN Astera² is ordered and calibrated.
Outputs
AC:
3 x 2 mono jacks, 1/4 "
BC:
2 x mono jacks, 1/4 "
SF power output:
5 x terminals,
5 x 40 W peak, 8
Ω
load
SF line output:
3 x mini XLR 6 pin
5 x +6 dBu, balanced
External inputs
CD/Analog line in:
0.2 to 2.0 Vrms, 10 k
Ω
2 x RCA phone
Talk Back microphone:
•
Electret microphone
•
Input voltage: 0.002 to 0.02 Vrms
•
Input resistance: 2.21 k
Ω
.
•
3.5 mm jack
Stimulus presentation
Normal:
The signal is presented when the
Stimulate
button is pressed.
Continuous ON:
The signal is interrupted when the
Stimulate
button is pressed.
Pulse:
The signal is pulsed.
Pulse duration:
225 ms on and 225 ms off (default).
Operator accessories
Operator monitor speaker
•
1.5W 8
Ω
, connected between tip and ring, sleeve floating
•
3.5 mm jack
Operator monitor headset - head-
phones
•
40 mW 16
Ω
•
3.5 mm jack
Operator monitor headset - boom
microphone
•
Electret microphone
•
Input voltage: 0.002 to 0.02 Vrms,
•
Input resistance: 2.21 k
Ω
.
•
3.5 mm jack
Otometrics - MADSEN Astera²
25
16 Technical Specifications
