I'm interesting in experimenting with a line-level passive crossover.
I found this page:
TLS.org | Passive Line-Level Crossover
I haven't been able to find the input impedance of the SMSL 98E amplifiers.
I wrote the company at their E-Mail address but never heard back.
Ideas?
I found this page:
TLS.org | Passive Line-Level Crossover
I haven't been able to find the input impedance of the SMSL 98E amplifiers.
I wrote the company at their E-Mail address but never heard back.
Ideas?
I haven't been able to find the input impedance of the SMSL 98E amplifiers.
You can measure the input impedance by connecting a variable resistor in series with the input
(not as a volume control). Input a small AC voltage (perhaps 100mV) at 1kHz. Adjust the resistor
until the voltage output is half that with the resistor set to zero. This value of the resistor is
the input impedance.
Alternatively, a buffer circuit after the passive filter will eliminate the effect
of the input impedance loading on the filter.
Last edited:
You can measure the input impedance by connecting a variable resistor in series with the input
(not as a volume control). Input a small AC voltage (perhaps 100mV) at 1kHz. Adjust the resistor
until the voltage output is half that with the resistor set to zero. This value of the resistor is
the input impedance.
Yeah I found instructions but I don't have the gear.
Yeah I found instructions but I don't have the gear.
Ok, this says 69k input impedance.
https://www.st.com/content/ccc/reso...df/jcr:content/translations/en.DM00044235.pdf
Ok, this says 69k input impedance.
https://www.st.com/content/ccc/reso...df/jcr:content/translations/en.DM00044235.pdf
Thank you!
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