Technical Specifications - Sensaphonics 3D AARO User Manual

TECHNICAL SPECIFICATIONS

The 3D Active Ambient System (U.S. Patent #8,160,261) is
designed to add ambient audio to the IEM mix without
distortion or added latency. The 3D system components
(ambient earphones and bodypack mixer) will only operate
properly when used together.
Notes:
1. For measurements, earpiece is terminated in a Zwislocki
coupler: IEC Type 60318-4 Occluded Ear Simulator.
2. The 3D-AARO bodypack mixer was introduced March
2014, replacing Model 3D-M. Both have identical audio
and electrical specifications.
3. 3D-AARO has a pure analog signal path, and thus zero
system latency.
Frequency Response
Maximum SPL, 500 Hz
Single-driver earpiece
Dual-driver earpiece
Ambient Microphone Input Overload, 500 Hz
Full Ambient Mode Insertion Gain
Monitor Input Sensitivity (for 124 dB-SPL, 500 Hz)
3D-AARO Mixer, unbalanced drive (pin 2 hot)
Monitor Input Impedance
3D-AARO Mixer
Ambient Mode Equivalent Input Noise
Monitor Mode Equivalent Input Noise
Single-driver earpiece (A-weighted)
Dual-driver earpiece (A-weighted)
Output Noise
Single-driver earpiece
Dual-driver earpiece
Limiter
Type: Slow, average responding, frequency selective, linked left-right;
dual independent for monitor and ambient signals
Limiter threshold (both operating modes)
Limiter threshold (monitor signal, Full Ambient mode)
NOTE: 105 dBA is not considered a safe level for extended
listening. The intention of the limiter is to provide a musically
pleasing limiting function while guarding against occasional
excessive levels. Monitoring levels for extended perfor-
mance times should not be entering the limiting region.
14
3D Active Ambient System
20 Hz – 20 kHz
124 dB-SPL
130 dB-SPL
140 dB-SPL
0 dB
0 dBV
20 kOhm
27 dBA-SPL
-104 dBV
-101 dBV
20 dBA-SPL
23 dBA-SPL
105 dBA-SPL
output levels
85 dBA-SPL
output levels