in case an image didn't upload: B308-C1-E3-C64-E-4-DE8-AB3-E-6613-B5-C3241-F — ImgBB
so i should remove R1 & R14 and install Rx1 400R and set the jumper on S1 correct?
No, you will remove nothing. You will add RX1 400R (390R-430R acceptable). And a jumper across front left and right pads of S1.
do i need a Z-foil for 400R resistor or any will do? Thanks
No, you will remove nothing. You will add RX1 400R (390R-430R acceptable). And a jumper across front left and right pads of S1.
Finally, after hours of fiddling, got the bias right! Will let the music spin for a while now ;> Thanks for all your support!
No, you will remove nothing. You will add RX1 400R (390R-430R acceptable). And a jumper across front left and right pads of S1.
i have also shunted S1 left/right pin.
If you measure at the input RCA with the Ohm meter (phono power must be off and no input cable attached) what value you see? About 387 Ohm? If yes, all is done well.
will test that later in the eve after work, thanks
If you measure at the input RCA with the Ohm meter (phono power must be off and no input cable attached) what value you see? About 387 Ohm? If yes, all is done well.
Measured inputs: 384 & 385 ohm respectively. Must be ok. Thanks
If you measure at the input RCA with the Ohm meter (phono power must be off and no input cable attached) what value you see? About 387 Ohm? If yes, all is done well.
THANK YOU Mr Salas, it's a pleasure having such a musical phono! Respect is burning
Yes its ok. Numbers reading within tolerance of DMM and resistors %.
Hi Salas, just curious......the Denon 103 cartridge have 40 Ohm output impedance for 0.3mV output voltage. Why did you recommend 400R (Rx1) // with the 47k (R1).??Put around 400R in the Rx1 slot for a regular 40 Ohm DL103 model.
To have about 10:1 load impedance to source impedance ratio. So not to lose any cartridge signal potential. That's technically sufficient. Unless other factors exist.
Note:
We usually read various load recommendations for MC cartridges. Many times conflicting. One likes 100 Ohm loading and another one 1000 Ohm for the same model. Others like everything in between for it.
I suspect everyone is right and their difference isn't what the cartridge asks for, but with what resistive damping the same cartridge + their different phonos behave best for ultrasonic peaking. Classic integrated Japanese phono stages with strong negative feedback loop tended to 100 Ohm with most MC carts for instance.
Note:
We usually read various load recommendations for MC cartridges. Many times conflicting. One likes 100 Ohm loading and another one 1000 Ohm for the same model. Others like everything in between for it.
I suspect everyone is right and their difference isn't what the cartridge asks for, but with what resistive damping the same cartridge + their different phonos behave best for ultrasonic peaking. Classic integrated Japanese phono stages with strong negative feedback loop tended to 100 Ohm with most MC carts for instance.
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