@markbakk @fluid @augerpro @hifijim
Thanks for all of your help. Here are the latest measurements of the completed crossover, both speakers.
I changed amplifiers between last batch of measurements and now. Note that the weird dip at 8khz is gone... I am blaming that Fosi Audio V3 amplifier. I picked up a Marantz SR6008 for my living room and used that for measurements in Direct mode.
X-Over vs Sp1 and Sp2. The X-over measurements were probably taken at a higher volume than the actual speaker measurements.
Speaker 1
Speaker 2
This is the setup. Speakers are about 3" from rear wall (would like them to be further away, but it would look pretty silly in that position and the WAF (wife approval factor) would be severely impacted).
All in all I am very happy with how they sound. I use them in my living room as TV speakers and also for listening to music and such.
I listen at about 10-15ft away from the speakers and their volume is fine. The room is adjacent to my kitchen (without a wall between) and at about 18ft and there is a significant bass amplification (I assume this is in-room effects). Sometimes when there is a lot of bass..all muddied at the same time.. I hear a noise which sounds like someone is stomping upstairs.. is this a room effect or is the woofer actually hitting some sort of excursion limit.
Lastly...now that these have been completed... How did I do?
edit... adding X-Over
Thanks for all of your help. Here are the latest measurements of the completed crossover, both speakers.
I changed amplifiers between last batch of measurements and now. Note that the weird dip at 8khz is gone... I am blaming that Fosi Audio V3 amplifier. I picked up a Marantz SR6008 for my living room and used that for measurements in Direct mode.
X-Over vs Sp1 and Sp2. The X-over measurements were probably taken at a higher volume than the actual speaker measurements.
Speaker 1
Speaker 2
This is the setup. Speakers are about 3" from rear wall (would like them to be further away, but it would look pretty silly in that position and the WAF (wife approval factor) would be severely impacted).
All in all I am very happy with how they sound. I use them in my living room as TV speakers and also for listening to music and such.
I listen at about 10-15ft away from the speakers and their volume is fine. The room is adjacent to my kitchen (without a wall between) and at about 18ft and there is a significant bass amplification (I assume this is in-room effects). Sometimes when there is a lot of bass..all muddied at the same time.. I hear a noise which sounds like someone is stomping upstairs.. is this a room effect or is the woofer actually hitting some sort of excursion limit.
Lastly...now that these have been completed... How did I do?
edit... adding X-Over
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Congratulations on making something you are happy with.
It is a little strange that there is so much variation between the two speakers. If this is real and not just a measuring issue then it is not ideal.
Having the speakers be closely matched in output and frequency response does make a difference to how the speakers sound as a stereo pair and their imaging properties.
I still think the Morel tweeter should be swapped for the SB26ADC but if you are happy that is all that really matters.
@fluid I think I could improve the Morels slightly by playing with the LPAD. The response curves look very similar to my untrained eye.
After looking at the data a little closer, I think I made a mistake when measuring the port, the microphone may not have been in the same location and therefore the SPL levels are several db different between the two.
When comparing just the near field woofer response, the scan speaks are within 1db of each other (am I wrong in thinking that is pretty tight? if not, then what is considered tight?).
Thanks again for all the information sharing on this forum. Could not have gotten this far without your expertise.
One last opinion-seeking question: Now that I have had so much fun learning, should I scrap the build and buy a pair of used bookshelfs which may perform better? I am in it for about $650-$750. If I keep these, I will need to build/buy a subwoofer. These bookshelfs don't achieve the volume I need when listening to music (I sort of like it loud, and listening 15' away doesn't help)... I guess I really need my large 3-way floor standers from college. 😉 (that won't happen, WifeApprovalRating won't allow that nonsense).
After looking at the data a little closer, I think I made a mistake when measuring the port, the microphone may not have been in the same location and therefore the SPL levels are several db different between the two.
When comparing just the near field woofer response, the scan speaks are within 1db of each other (am I wrong in thinking that is pretty tight? if not, then what is considered tight?).
Thanks again for all the information sharing on this forum. Could not have gotten this far without your expertise.
One last opinion-seeking question: Now that I have had so much fun learning, should I scrap the build and buy a pair of used bookshelfs which may perform better? I am in it for about $650-$750. If I keep these, I will need to build/buy a subwoofer. These bookshelfs don't achieve the volume I need when listening to music (I sort of like it loud, and listening 15' away doesn't help)... I guess I really need my large 3-way floor standers from college. 😉 (that won't happen, WifeApprovalRating won't allow that nonsense).
