Whitebread
1000+ Head-Fier
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- Sep 16, 2002
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Hello folks,
I'm trying to purchase components in order to build an AMB Delta1 attenuator. However, I'm not certain what I should set the Zatt value to in the calculator. I'll have three inputs within the amp. The first will be the Gamma1/Gamma2 stack. The second is a Phono pre-amp. I've reached out for the output impedance value from the manufacturer and I'm waiting on that. The Gamma1/Gamma2 stack doesn't seem to have any information about it's output impedance value on amb.org. So, I'm wondering what others have used as their input impedance value when building the Delta1 for use with this DAC. Is the default value of ~25k ohms reasonable for most applications? (USB DACs, Phono preamps, CD/SACD players, etc)?
Thanks
I'm trying to purchase components in order to build an AMB Delta1 attenuator. However, I'm not certain what I should set the Zatt value to in the calculator. I'll have three inputs within the amp. The first will be the Gamma1/Gamma2 stack. The second is a Phono pre-amp. I've reached out for the output impedance value from the manufacturer and I'm waiting on that. The Gamma1/Gamma2 stack doesn't seem to have any information about it's output impedance value on amb.org. So, I'm wondering what others have used as their input impedance value when building the Delta1 for use with this DAC. Is the default value of ~25k ohms reasonable for most applications? (USB DACs, Phono preamps, CD/SACD players, etc)?
Thanks