More and more Watt... Where is the limit?
In the mid eighties, a 500W amplifier (per channel, on 4 Ohm) was considered a very powerful amplifier. Today, this honour
goes to a 2000 Watt model. The reasons for this power escalation are beyond the scope of this document, so let's assume
it's simply a fact that nobody can predict where the power limit really is. Some manufacturers even advertise 4000W
devices. The fact that the main purchase factor is the cost per Watt, together with the fact that output power ratings
depend on numerous factors which are difficultly measurable even by professional users has lead to great confusion
and speculation about these ratings. The consequence is an authentic "power race". Nevertheless, the market demand
for more and more Watt is a reality that forces manufacturers to increase the efficiency of power amplifiers, which were
becoming more and more heavy with traditional technologies that wasted significant amounts of energy as heat.
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