3.1 Welcome
Many thanks for purchasing this Void Acoustics Bias Series
amplifier. We truly appreciate your support. At Void, we design,
manufacture and distribute advanced professional audio
systems for the installed and live sound market sectors. Like
all Void products, our highly skilled and experienced engineers
have successfully combined pioneering technologies with
ground-breaking design aesthetics, to bring you superior
sound quality and visual innovation. In buying this product, you
are now part of the Void family and we hope using it brings you
years of satisfaction. This guide will help you to use this product
safely and ensure it performs to its full capability.
3.2 Unpacking & checking for shipping
damage
Your Void product has been completely tested and inspect-
ed before leaving the factory. Carefully inspect the shipping
package before opening it, and then immediately inspect
your new product. If you find any damage notify the shipping
company immediately.
The box contains the following:
• One Bias Series amplifier
• One AC mains power cord
• This user guide
3.3 Disposal of the packing material
The transport and protective packing has been selected
from materials which are environmentally friendly for dis-
posal and can normally be recycled.
Rather than just throwing these materials away, please en-
sure they are offered for recycling.
3.4 About the amplifier platform
Bias Series has many advanced features, digital control of
many parameters, adjustable maximum mains consump-
tion, selectable digital presets and a graphic display that
shows detailed information of the status of the amplifier.
All Bias Series amplifiers come with built in Power Factor
Correction. This unique feature ensures that a predominantly
resistive load is presented to mains thus minimizing current
distortion and voltage/current displacement. This leads to
improved performance of the amplifier at high levels of out-
put and avoids mains-voltage collapses, typical of standard
and switching power supplies. Another great advantage of
this technology is that its performance is, to a large extent,
independent of mains voltage. The rated output power does
not vary with load/line conditions.
3.4.1 More sound and less weight
Class D technology based amplifiers are highly efficient,
delivering greater power to speakers with reduced heat dis-
sipation: typical running efficiency of output stages is 95%,
with only 5% of input energy dissipated as heat. This allows
for smaller dimensions, weight and power consumptions.
Contrary to conventional amplifiers which achieve highest
efficiency only at full rated power output, Class D efficiency
is almost independent of output level. Music has an average
power density of 40% of its peak value; this means that other
(non-class D) amplifiers can easily generate 10 times more
heat than Void products for the same sound pressure level.
Void amplifiers deliver crystal-clear highs, and a tight, well-
defined low end: the most accurate reproduction of an audio
signal. Solid time proven design features ensure extremely
high performance in terms of super low total harmonic dis-
tortion, optimal frequency response, high power bandwidth
and damping factor across a vast number of application
scenarios. Void’s multi patented application of Pulse Width
Modulation (PWM) high frequency sampling techniques is
just one of the many factors contributing to the Bias Series’
high performance ratings across the audio bandwidth.
3.4.2 The Show Always Goes On
The Bias Series offers complete protection against any pos-
sible operation error. Every amplifier in this series is designed
to work under a large range of possible conditions, delivering
maximum power with maximum safety and an outstanding
long term reliability. Anticipating potential problems at the
design stage means your show always goes on!
3 Bias series user guide
Amplifier
Mains cable
User guide
FIGURE 1: Packaging
.
Bias Series User Guide V1.0
Page 1
