Quote:
Originally Posted by Bombadil
The McIntosh MA7200 integrated amp's preamp output produces a maximum of 8V. The 1.4V spec is stating how much voltage is needed by the amplifier section to produce its full rated 200 wpc. I.e. the amp's input sensitivity specification.
8V is more than enough to drive any power amplifier to full power / clipping. That is unless the source's output is very low. Say playing a CD which was recorded with extremely low volume levels.
8V is a pretty common specification, many preamps' output voltage is in that neighborhood. Some do go higher, I have a Conrad-Johnson which has a maximum output of 17V, but I'm sure I never get it anywhere near that.
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Thank you for explaining.
I’ve tube rolled the KT170, KT88, KT77 and 7581s. I have to say the KT77s with the 5AR4 are my favorite. The 88s have a bit more power. Really satisfied.