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Cubes

Some examples of cubes - real-live measurements from real-live amplifiers.

First we look at three examples which describes three basic shapes of the PowerCube measurements, and then we look at three well known brands... and we're not disclosing any names except one...

The perfect amplifier doesn't care about the load - it's a pure voltage generator - so the measurement of a theoretically ideal amp would produce a cube, hence the name "PowerCube".

In popular price ranges you can't really expect to find an amplifier that will produce a perfect cube, you can see a good example in the last cube on this page - a very well designed two channel amp from Rotel. Of course, good Class D amplifiers do exist, just as with any other topology, but you need a PowerCube system to find them!

If you pay top dollars, you can come very close to a perfect cube.

This is the best cube ever. The Rockford Fosgate T15kW amplifier uses HT Technology which gives the amplifier unmatched dynamic power capabilities.
The cube is near perfect, but expect to pay USD 20,000!

Here are some more examples:

 
 
 
 
 
 

 

All above is from www.audiograph.se/subpages/cubes/cubes.htm

AudioGraph: Home of the famous PowerCube!

The PowerCube graphs (the measurements, the 'PowerCubes') are used all over the world to evaluate audio amplifiers.

We have produced the PowerCube Measurement system since 1990 so if you're into audio you surely have seen the PowerCube graphs before.
>> Read about the first editions of the PowerCube

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

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