Hello everyone,
I have received some great help thus far but have been recommended to ask you lovely folk to perhaps join in on the tricky task of determining the capacitance of the phono stage in my AU-505 amplifier. My aim is to see if it is compatible with an Audio Technica MM cartridge which requires 100-200pf max loading, but it would just be all-round great to have knowledge of this spec as it will help me learn what cartridges will be compatible with my amp in the future. 🙂
Here is some relevant info I found in the manual, but I'll also attach the link to the full manual for those who'd like to dive into more detail.
Sansui AU-505 Solid State Integrated Amplifier Manual | HiFi Engine
Thank you.
I have received some great help thus far but have been recommended to ask you lovely folk to perhaps join in on the tricky task of determining the capacitance of the phono stage in my AU-505 amplifier. My aim is to see if it is compatible with an Audio Technica MM cartridge which requires 100-200pf max loading, but it would just be all-round great to have knowledge of this spec as it will help me learn what cartridges will be compatible with my amp in the future. 🙂
Here is some relevant info I found in the manual, but I'll also attach the link to the full manual for those who'd like to dive into more detail.
Sansui AU-505 Solid State Integrated Amplifier Manual | HiFi Engine
Thank you.
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This would likely be very small, mainly set by the input cabling.
Almost certainly below 100pF.
If you add 100pF to each phono input, it should be within your range.
Almost certainly below 100pF.
If you add 100pF to each phono input, it should be within your range.
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"Compatible"-- everybody knew what a phono cartridge was, and still is. It will surely work. If you load that needle with 400 pFd the top octave may slope off. You may not notice.
That is an older, value-priced, and unsophisticated phono preamp. Two transistors is usually not enough for "precision RIAA". The 1uFd input cap promises subsonic base current rumble, but the 10uFd at C609 may shave that off with the bottom bass. This is for fun, not accuracy. Just enjoy it.
That is an older, value-priced, and unsophisticated phono preamp. Two transistors is usually not enough for "precision RIAA". The 1uFd input cap promises subsonic base current rumble, but the 10uFd at C609 may shave that off with the bottom bass. This is for fun, not accuracy. Just enjoy it.