Information Cubed
The data acquired in the testing procedure is then graphed in the form of a
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.
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| AudioGraph – The PowerCube |
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| Amplifier : | Series 1 4600x | Rated Power: 30 V at 4 ohms |
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| Serial No : | PHASE 1 |
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| Owner : | ROCKFORD CORPORATION |
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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!
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