Hello diy friends
I’m about to rebuild some crossovers in my Klipsch H1’s. I have a 3rd speaker that I’m going to use a the Guinea pig for this
My question is this, how do I do some before and after testing to see how well the new components will do on paper, as well as how well they sound to my ears. I have the laptop the test mic, and REW program installed on my laptop , I don’t really know how to use the program, lol
and I have an oscilloscope and Few different types meters for matching all my components with it as near as possible ESR on all the capacitors that I’ll be using.
I’m only changing the caps, nothing else , well maybe the wires inside the speaker cab
So could someone please direct me to a YouTube video or detailed instructions on how to accomplish all this so I can have some before and after measurements on this project? That way I can keep a log on what is working and what’s not working
I’m about to rebuild some crossovers in my Klipsch H1’s. I have a 3rd speaker that I’m going to use a the Guinea pig for this
My question is this, how do I do some before and after testing to see how well the new components will do on paper, as well as how well they sound to my ears. I have the laptop the test mic, and REW program installed on my laptop , I don’t really know how to use the program, lol
and I have an oscilloscope and Few different types meters for matching all my components with it as near as possible ESR on all the capacitors that I’ll be using.
I’m only changing the caps, nothing else , well maybe the wires inside the speaker cab
So could someone please direct me to a YouTube video or detailed instructions on how to accomplish all this so I can have some before and after measurements on this project? That way I can keep a log on what is working and what’s not working
Using REW:
sine wave burst sweep from computer speaker output into xover input
chart record xover output via computer line-in
Repeat for each xover driver output
Make sure you use a voltage divider at the computer line-in
sine wave burst sweep from computer speaker output into xover input
chart record xover output via computer line-in
Repeat for each xover driver output
Make sure you use a voltage divider at the computer line-in
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"Use a very low signal level in the speaker, it's easy to damage drivers with test tones"
I'm very error prone, so I like to have a backup on my backup for this. For software I have:
1) equalizer APO
2) the start frequency used for sweeps in REW
e.g. for a robust compression driver:
1) I used equalizer APO to cut the LF (-50dB).
2) I ran the REW sweeps loud, but starting at 200Hz or higher.
If I forgot to apply one of these, the other would be there as a safeguard.
When testing a less robust driver, I also add a (fairly big) capacitor.
I'm very error prone, so I like to have a backup on my backup for this. For software I have:
1) equalizer APO
2) the start frequency used for sweeps in REW
e.g. for a robust compression driver:
1) I used equalizer APO to cut the LF (-50dB).
2) I ran the REW sweeps loud, but starting at 200Hz or higher.
If I forgot to apply one of these, the other would be there as a safeguard.
When testing a less robust driver, I also add a (fairly big) capacitor.
Speaker output? Is that a sound card with a built-in amplifier?
For mine, I run the PC's headphone jack --> amplifier --> device being tested.
Not saying my way is better, just different (my PC is definitely not ideal as an audio testing tool).