K4102 and piezo?

Kits Audio Hi Fi Projects
1

Hi

Can I use a piezo with the K4102? I have the B-Band 29R accoustic guitar piezo, unfortunately I cant find the impedance for this piezo anywhere. But is it possible to run piezos at all?
Thanks!
Olivier

2

I’m afraid we do not have any experience with this matter.

3

Thanks very much for your answer.

Can you tell me the input impedance of the K4102 in ohm?

Thanks again and greetings
Olivier

4

Should be around 50K ohm.

5

Would it be possible to change that to 5-10M ohm?

Thanks for your help!
Olivier

6

No, that is not possible.
Such an absurd high input impedance would lead to hum troubles.
If a piezo pickup requires such an impedance, most likely the amplifier must be mounted very close (i.e. in) the pickup element.
The quality and shielding of such an amp must be high, to avoid interference pick-up.

7

Thanks again for your help!

Olivier