My speakers have a fixed LPad (R1 & R2) followed by an adjustable rheostat Lpad (R3 & R4) to attenuate the tweeter. I want to replace these two Lpads with a single pad with fixed resistors. I will measure the value of the adjustable Lpad to determine R3 and R4. How do I add the two pads together to determine the replacement resistor values? I'm looking for a single series and single shunt resistor values. Thank yoU!
Rich
Is it as simple as adding up the series resistors
R1+R3
and adding up the parallel resistors
1/(1/R2 + 1/R4)
as normal?
bump
Can someone confirm if the above post is correct?
Thanks!!
Rich
Wish I could really help Rich. I saw this when you first posted it, and my gut is telling me you can't just do some math to replace these 4 with 1, because they are in different locations on the circuit, but I'm not really knowledgeable on this stuff, so I sat on my hands ;)
Rich, being the lazy person that I am the first thing I would do is remove the first Lpad resistor network and then measure the resistance needed for the fixed Lpad network directly from the adjustable Lpad.
Scotty
That's OK Barry, thanks for replying!
Dang-NABBIT Scotty you are so clever! Who needs engineering when you have common sense? Thanks!