However, that particular test was based on differences in 1 watt playing conditions. The real value of 'better' made amps occurs when the volume is increased. As I've stated, if you like your music LOUD, then a separate, well built amp will pay dividends. A cheaper amp (like say something found in a $500 dollar reciever) will not play LOUD music to the same degree a well built amp will play it. The cheaper amp will introduce more distortion and clipping at higher volume levels.