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With the current resurgence of interest in the "retro"
technology and particularly in single-ended retro
technology, the matter of sufficient drive power for modern
loudspeakers becomes a very real problem. We came to the
conclusion that the market needed one 'BIG BOY' single-ended
amplifier.
The 150 / 75 SE/PP 807
MONOBLOCKS can switch from either 75 watts in
single-ended to 150 watts in push-pull. The 807 tube was
chosen for good reasons: easy availability and high
reliability, but mainly for its glorious sound in its
(intended design parameter) triode-strapped configuration.
We chose 8 of them in parallel as the output stage which
presents a favorably low anode impedance to the very special
MANLEY output transformer which in turn provides a very low
impedance drive to the loudspeaker and a much higher damping
factor than other single-ended designs. Single-ended detail
with high-power brawn. You won't run out of power with this
amplifier.
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