Lm318 front end. Bet that hisses as bad as the 741 in CS800 rev A & B.
Thanks for the analysis. Never know how to compare microvolt noise figures to sqrthz noise figures.Actually, probably not all that bad, for a POWER amp.
-= GoatGuy ✓ =-
Only one problem, you got the maths wrong.And do the math:√( 20,000 Hz ÷ 20 Hz ) = 31 or so,If the 318 signal input is at 1.0 VRMS, then the noise floor is about –120 dB from signal.
31 × 16 nV … = 500 nV audio-band input noise.
Only one problem, you got the maths wrong.
BW = 20000 - 20 = 19980,
√19980 ≈ 141
16nV x 141 = 2.25µV rms
[ you divided frequencies by mistake ]
So 113dB down from 1V rms, ignoring source resistance / current noise.