The document describes an invisible loudspeaker called the AIW350E Evolution Series. It features new technologies that provide improved sound quality over previous models, including OptiDrive technology for clearer high frequencies and OptiDamping technology for increased low frequency extension and mid-range accuracy. The loudspeaker is designed to be installed invisibly in drywalls or ceilings and is suitable for low to medium powered audio systems.

1. Invisible Loudspeaker
Product Data Sheet
• Completely Invisible, high fidelity loudspeaker
• Easy to install into drywalls or ceilings
• Simply skim over with a finishing coat of plaster
• Suitable for low/medium powered audio systems
• Features new technologies providing superior
mid-range and treble quality
The all new AIW350E Evolution Series loudspeaker takes Invisible loudspeakers into new territory with respect to sound
quality. An evolution of the highly successful AIW3X loudspeaker, the AIW350E retains the same familiar installation
technique and is compatible with all previous mounting accessories.
Recent engineering development has resulted in improvements in key areas of audio reproduction:
• OptiDrive technology optimally distributes the audio signal to the speaker’s exciters to ensure exceptional high
frequency clarity on and off-axis. The result: improved tonal balance and treble detail.
• OptiDamping technology delivers increased low frequency extension and improved mid-range accuracy by selectively
tuning discrete vibrational modes that are generated in the loudspeaker’s acoustic panel.
Specifications AIW350E
Nominal impedance 8 Ohms (APU connected)
Power handling (continuous / peak) 30W / 60W
Sensitivity (2mm plaster/mud skim) 84dB 1m/ 2.83Vrms (APU connected)
Frequency response 105Hz - 20kHz (-6dB) mounted in BackboxFS (APU connected)
Electrical connection Blue butt splice crimp terminals (14-16 AWG)
Dimensions 173/4” x 135/8” x 15/8” (450mm x 345mm x 40mm)
Product weight 2.6lbs (1.2kg)
Fixing requirement Amina BackboxFS / BackboxSW (wood adhesive and fixing blocks
available on request)
In-line protection unit APU2 or APU350
Manufacturer limited warranty for residential applications 10 years

2. On Axis Frequency Response
(product installed using Amina BackboxFS in 1/2” (12.5mm) drywall sheet with 16” (140mm) stud spacing and 2mm thick plaster skim coat)
100.0
90.0
80.0
dBSPL
70.0
60.0
20 50 100 200 500 1k 2k Hz 5k 10k 20k
Horizontal Dispersion 0° 0°
-30° 30° -30° 30°
-60° 60° -60° 60°
-90° 90° -90° 90°
-48 -36 -24 -12 0 12dB -48 -36 -24 -12 0 12dB
500Hz 4kHz
1kHz 8kHz
2kHz 16kHz
Vertical Dispersion
-90° -90°
12dB -60° 12dB -60°
0 0
-12 -12
-30° -30°
-24 -24
-36 -36
-48 -48
0° 0°
30° 30° 30°
60° 60°
90° 90°
500Hz 4kHz
1kHz 8kHz
2kHz 16kHz
UK
Amina Technologies Ltd US
Cirrus House, Glebe Road, Huntingdon Amina Technologies Ltd
Cambridgeshire,PE29 7DL, UK P: 1-866 462 6462 / F: 1-888-329 2491
T: +44 (0) 1480 354390 / F: +44 (0) 1480 356564 E: sales@aminatechnologies.com
E: inspired@amina.co.uk / W: www.amina.co.uk W: www.aminatechnologies.com
V1.2 April 2012 © Amina Technologies Ltd