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-   -   JL Audio Fathom f113 Question (https://www.audioaficionado.org/showthread.php?t=45431)

crwilli 08-15-2019 11:28 AM

Quote:

Originally Posted by W9TR (Post 976180)
Jensen makes great transformers and it makes sense to use them in this application.

Technically Barry is 100% correct and a myriad of REL owners are very happy with their setups, so go figure.

It just shows that “sounds great” and “technically correct” are not necessarily tightly related.

Barry also wants you to close off all of the ports in your speakers, essentially changing the design. I’m not doing that. :)



Good point that ‘sounds great’ and ‘technically correct’ not necessarily being the same thing.

On the last point, I have in fact, closed the ports on my Strads as I use the F113v2 below 90 HZ and don’t need another wave front below that frequency to smear the timing. His reasoning on that makes a lot of sense & sounds great! Go figure.

nicoff 08-15-2019 12:11 PM

JL Audio Fathom f113 Question
 
I do not think that there is a contradiction between 'Sounds great' and applying changes that are 100% technically correct. Applying technically correct changes can result in the same system sounding better than great.
As an example, my home theater sounded great. One day I decided to move the speakers around and ran a speaker frequency response for each speaker after repositioning. The recorded sweep noise showed a sharp drop in the high frecuencies of the center channel and in one of the surrounds. It turned out that both tweeters were damaged. Replacing the tweeters made the great sound even better. I have no idea how long those tweeters had been shot!

W9TR 08-15-2019 12:43 PM

I agree 100%. I use “technically correct” as a baseline and go from there. Without a solid technical foundation, you are building on sand.

jbaudio68 08-16-2019 10:59 PM

Quote:

Originally Posted by crwilli (Post 976181)
Good point that ‘sounds great’ and ‘technically correct’ not necessarily being the same thing.

On the last point, I have in fact, closed the ports on my Strads as I use the F113v2 below 90 HZ and don’t need another wave front below that frequency to smear the timing. His reasoning on that makes a lot of sense & sounds great! Go figure.



I also cross my cr-1 at 90hz and closed the huge ports on my IB2s and it sounded much cleaner. It is correct that it changes the speaker design but since my ib2s don’t have to reach so low I think the juice is worth the squeeze.

Not directly related but I heard a rattling and thought my subs were shaking pictures on the walls. Finally figured out that the backs of my IB2s had come loose over time. Tightened some screws and all better! So don’t be so quick to blame your subs if you hear a rattle!

Masterlu 08-16-2019 11:42 PM

Quote:

Originally Posted by jbaudio68 (Post 976419)
I also cross my cr-1 at 90hz and closed the huge ports on my IB2s and it sounded much cleaner. It is correct that it changes the speaker design but since my ib2s don’t have to reach so low I think the juice is worth the squeeze.

Not directly related but I heard a rattling and thought my subs were shaking pictures on the walls. Finally figured out that the backs of my IB2s had come loose over time. Tightened some screws and all better! So don’t be so quick to blame your subs if you hear a rattle!

And for us older crowd... :D

https://i5.walmartimages.com/asr/13d...0&odnBg=FFFFFF


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