marems Posted March 16, 2021 Share Posted March 16, 2021 I am in the process of recapping and updating the stock resistors in my RB-75’s and I have purchased all of the components to match the values I got from a schematic off of the Klipsch forums. However, My crossovers have 5 ohm resistors and not the 6 ohm resistors that were in the RB 75 crossover schematic. All of the other component values are the same, I was curious if anybody could tell me what this will do to the sound if I install the 6 ohm resistors instead of the 5 ohm. I understand the there were 3 crossover reversions. Quote Link to comment Share on other sites More sharing options...
Deang Posted March 17, 2021 Share Posted March 17, 2021 If you see a 5, use a 5. If you use the 6 instead, what you hear will depend on where in the circuit it is located. Quote Link to comment Share on other sites More sharing options...
marems Posted March 17, 2021 Author Share Posted March 17, 2021 @Deang it’s located in the HF circuit. Strange the pcb labels it as a 6ohm too. Quote Link to comment Share on other sites More sharing options...
Deang Posted March 17, 2021 Share Posted March 17, 2021 It looks as if a single series resistor has been used to pull the compression driver down. We don't have a complete picture, in other words, we don't know why a 5 is in there instead of 6. For example, did they go to a different driver? If the driver is the same, then the 6 will bring the horn down more. You may or may not like it. Quote Link to comment Share on other sites More sharing options...
marems Posted March 18, 2021 Author Share Posted March 18, 2021 @Deang here is the schematic. Trey stated in another thread there were 3 xover reversions in the RB-75. I guess I will have to see how it sounds. If anything I will install 5ohm if I don’t like the sound... btw I love the 10ohm resistor mod in the RF-7’s you shared several years back, I did this to my RF-7’s as well and improved the sound significantly. RB-75.pdf Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.