– 21 –Information Cubed
The data acquired in the testing procedure is then graphed in the form of
a 3-dimensional cube, hence the name
PowerCube
.
The
Phase Angle
is expressed on the horizontal axis, the
Output Voltage
is presented on the vertical axis and the
Impedance
is displayed on the
Z axis.
Output Power
, in watts, is listed on the left hand side for each
impedance at each phase angle.
What is an Amplifier?
An amplifier by definition is a voltage generating device, recreating the
signal input which is identical but in a larger or
amplified
form. It will be
connected to a reactive load (the speaker). The impedance of this load
and the phase of the signal passing through the load will vary, dependent
upon the frequency and amplitude of the input signal (music).
Therefore, a perfect amplifier will be able to maintain the same output
voltage regardless of load characteristics and will not alter the signal it is
reproducing. A perfect amplifier when measured by the
Audio Graph
PowerCube
would present data that forms a perfect cube. Unfortunately,
amplifiers are not perfect. The laws of physics generally prevent it. A great
amplifier is about the best one can hope to attain.
As you can see by the
PowerCube
and as you will experience by listening,
your Series 1 amplifier is a GREAT AMPLIFIER!
Amplifier: Series 1 4600x
Serial No: PHASE 1
Owner : ROCKFORD CORPORATION
Rated Power: 30 V at 4 ohms
AudioGraph – The PowerCube