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Ted Kendall · 28th Jul 2020, 3:34 pm

It's irritating in a way, but the fact is that the 5534A is still the best chip you can get for an MM preamplifier, even if it has been about for forty-odd years, and very close in noise terms to the best attainable with discrete devices, an approach which brings other and greater problems. The single stage EQ approach is the optimum, but to calculate the exact component values is non-trivial exercise, because of the complexity of the relevant equations. Still, Self has done the sums, so that's that problem kicked into touch. He's written a tome just about electronics for vinyl, incidentally...

28th Jul 2020, 3:34 pm	#101
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	Re: Very low noise op amp recommendations? It's irritating in a way, but the fact is that the 5534A is still the best chip you can get for an MM preamplifier, even if it has been about for forty-odd years, and very close in noise terms to the best attainable with discrete devices, an approach which brings other and greater problems. The single stage EQ approach is the optimum, but to calculate the exact component values is non-trivial exercise, because of the complexity of the relevant equations. Still, Self has done the sums, so that's that problem kicked into touch. He's written a tome just about electronics for vinyl, incidentally...