The WA-234 is supplied with a set of physical plug-in "keys" that actually modify the circuit configuration for different uses
Actually it's two US$5,000 amps because these rather spectacular looking beasts are mono-blocks. They are two completely separate, but matched, mono amplifiers. Now it's no secret that the world of audiophile hi-fi sound systems can be a place of strange voodoo and esoterica - where the Law of Diminishing Returns becomes a way of life for deluded males of a certain age (never women it seems) but let's check our cynicism at the door for the moment. There is something interesting going on here and it may just turn out that at $10,000 for the pair, these amps are a (relative) bargain.
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