My 'Burn-in' test is a live loop of Led Zeppelin's "Whole Lotta Love" at 50% volume. I run a CD player straight into the amp for the cleanest signal. Knowing that all audio equipment is subtractive to the original music, I can report that the WOPL amplifier is more like 'a straight wire with gain' than any other amplifier I have ever heard. When I close my eyes, I can see (hear) John Paul Jones on the left, Jimmy Page banging on the strings of his Gibson Les Paul on the right, and Robert Plant and the drummer, John Bonham, in the center.
The strike of the crash cymbal continues to ring for an incredibly long time while the thundering staccato bass guitar erupts through those folded-horn stage speakers. When the Page drags the bow across his guitar stings and the sound is panned from left to right again and again, you know the balance is right, the left-right separation is right, the noise level is right, and the clarity is right. There is nothing like a new WOPL 700.
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