Im thinking to use +/- 5V for the AD815 for two reasons one is there are very few voltage regulators which can actually give super ultra low noise like 2uV in that voltage and yet be discrete. If we scale up there are again which can give noise as much as 4.1uV.
I just have a doubt that if we use +/-5V will it sound the same or we need to use higher voltages like +/-12V or 15V to get the best possible sound quality?
I just have a doubt that if we use +/-5V will it sound the same or we need to use higher voltages like +/-12V or 15V to get the best possible sound quality?
I run my AD815s on 5-6V, doesn't degrade the SQ. PSU noise is secondary to PSU impedance for this, as its operating in class B.
Running on low voltage has the advantage that the caps on the supply can have larger values in the same physical space. Hence I'd recommend < 6.3V so that 6.3V rated caps can be used.
Running on low voltage has the advantage that the caps on the supply can have larger values in the same physical space. Hence I'd recommend < 6.3V so that 6.3V rated caps can be used.
Iam planning to use zetex regulators giving for very low noise floor. But will the dynamics will be reduced by any chance since the applied voltage is lowest possible.
Dynamics isn't reduced by running from lower voltage but will be reduced by using a normal regulator. The noise spec of the regulator isn't really much of a guide to how much noise you'll get on the rails in practice due to modulation of the supply current.
I have a thought of using zetex discrete regulator for ultra low noise but would be considering TI tps7a4700 which one will be good?
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