STSOE Posted December 5, 2019 Author Share Posted December 5, 2019 On 12/3/2019 at 7:08 AM, MechEngVic said: This. That's why repositories of know-how and experience, like this here forum, are such a valuable resource. Speaker builders make as good a sounding speaker as they can within the confines of the budgets they are given. There is always a compromise. Then we, with the help of these forums and our experiences, can extract the few missing bits of performance out of those designs. But care must be taken to avoid thoughtless "Swap-tronics". You. My friend, you understand. Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 5, 2019 Author Share Posted December 5, 2019 (edited) On 12/2/2019 at 6:10 AM, Jeffrey D. Medwin said: No doubt. Most likely. the passive crossovers you used were typical, and thus FAR from idealized as to wiring and parts choices and implementation. IF ( a big word ) a passive crossover is well done, and you run great electronics, a Passive will be an improvement over an Active, because the Active calls for a whole other set of gain stages, in the crossover, to do that signal dividing. That " always at least one other gain stage ", ( with passive parts inserted to get the roll offs ), gets 'ya. IMHO, IME, the extra gain stage employed, be it tube or sold state, creates a lack of transparency, in a really superbly implemented audio system. I am referring to a system that is at the edges of state-of-the-art, in the high-efficiency audio world. KISS often rules. As an example, I use a two way speaker, and absolutely NO crossover at all ...........on the 15 inch woofer. It is now directly amp - driven, ....runs full range. I almost never see a Passive crossover I really like, however. So the conceptually-inferior Actives can sneak into use. YMMV, fine, its all IMHO. Jeff Edited December 7, 2019 by STSOE Quote Link to comment Share on other sites More sharing options...
Coytee Posted December 5, 2019 Share Posted December 5, 2019 On 12/2/2019 at 12:16 PM, dtel said: I just wish everyone could see how little changes can change other other things not even considered. Are you trying to tell me that my room isn't perfect?? 1 Quote Link to comment Share on other sites More sharing options...
Moderators dtel Posted December 6, 2019 Moderators Share Posted December 6, 2019 1 hour ago, Coytee said: Are you trying to tell me that my room isn't perfect?? Was really talking about changes in the speaker but your room is probably not right, very few are. Mine is perfect, a perfect mess most of the time, unfolded clothes on the bench, grandkids playpen and toys, but it always sounds good to us. Quote Link to comment Share on other sites More sharing options...
pzannucci Posted December 6, 2019 Share Posted December 6, 2019 10 hours ago, dtel said: Was really talking about changes in the speaker but your room is probably not right, very few are. Mine is perfect, a perfect mess most of the time, unfolded clothes on the bench, grandkids playpen and toys, but it always sounds good to us. That's perfect - chaos. It helps reduce standing waves and increase the diffusion. 1 1 Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 7, 2019 Author Share Posted December 7, 2019 I finally got around to it. https://imgur.com/a/7qFZGKB Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 7, 2019 Author Share Posted December 7, 2019 I couldn't help myself. I had to throw in some bitumen. 😋 https://imgur.com/a/HWt94Vn Quote Link to comment Share on other sites More sharing options...
glens Posted December 8, 2019 Share Posted December 8, 2019 With what result? Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 8, 2019 Author Share Posted December 8, 2019 (edited) On 12/8/2019 at 1:28 AM, glens said: With what result? Not as much as with a pair of Rp's to be honest. These are pretty well braced. But i have pretty much no cabinet vibrations even with very high volumes. I was a bit chocked to see that the back at the top was just bare wood. I got a bit more precission at the higher frequencies. And as mentioned. No vibrations to the touch anymore. It was pretty late when i did it last night so i didn't do any critical listening at higher volumes. It's still pretty early so i'll wait a couple of hours before i crank it up but my initial impressions is that the bass is a bit tighter too. Not by the extend that you would notice it with lesser electronics i think. But it was noticeable at the high frequencies. Less ringing and a bit more precission. But hell a 50 dollar upgrade to minimize vibrations is well worth it in my book. I only took them apart to see the crossover, but it seemed like a good idea to stiffen them up a bit and get rid of some of the noise inside the cabinet when i was at it. Edited December 10, 2019 by STSOE Quote Link to comment Share on other sites More sharing options...
MechEngVic Posted December 9, 2019 Share Posted December 9, 2019 And where's the pics of the crossover?!?!?!? Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 9, 2019 Author Share Posted December 9, 2019 5 hours ago, MechEngVic said: And where's the pics of the crossover?!?!?!? There is a link three posts up mate? Quote Link to comment Share on other sites More sharing options...
MechEngVic Posted December 9, 2019 Share Posted December 9, 2019 18 minutes ago, STSOE said: There is a link three posts up mate? Maybe I'm missing something, I don't see any crossovers in any of those images. Quote Link to comment Share on other sites More sharing options...
glens Posted December 9, 2019 Share Posted December 9, 2019 In the first link: Quote Link to comment Share on other sites More sharing options...
MechEngVic Posted December 9, 2019 Share Posted December 9, 2019 Just now, glens said: In the first link: I totally overlooked that first link, thanks. Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 9, 2019 Author Share Posted December 9, 2019 (edited) 31 minutes ago, MechEngVic said: I totally overlooked that first link, thanks. No worries. It look somewhat decent except for that big ugly spool in the bottom. It is an iron core. I don't like that. And thanks for throwing up the image by the way. I couldn't figure out how to do that. 😋 Edited December 9, 2019 by STSOE Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 9, 2019 Author Share Posted December 9, 2019 Does anyone have an image of the crossover from the Rf7 ll to compare with just for fun? Quote Link to comment Share on other sites More sharing options...
glens Posted December 9, 2019 Share Posted December 9, 2019 "Iron" core ain't so bad. Saves a bunch on DCR, relatively. The only real problem is if you throw enough current at the speakers to saturate it, but unless you're wearing earplugs (as you should at that volume) that shouldn't be a problem. As for diff against v2 perhaps a value or two may be off here or there, otherwise I'd surmise they're much the same quality-wise. In that respect I'd guess they're entirely sufficient for >90% of users. I'd prefer point-to-point wiring vs. circuit board topology. I'd be surprised if my Forte3s are different than yours in that respect, but I'm not intending to "improve" on them until/unless I go active/DSP. Don't hold your breath... Perhaps mine would benefit from panel damping, though that would follow long after improving the room. Even that (it's a lousy situation) is not even on my radar. I enjoy them very much as-are. Quote Link to comment Share on other sites More sharing options...
MechEngVic Posted December 9, 2019 Share Posted December 9, 2019 16 minutes ago, STSOE said: No worries. It look somewhat decent except for that big ugly spool in the bottom. It is an iron core. I don't like that. And thanks for throwing up the image by the way. I couldn't figure out how to do that. 😋 It looks pretty good compared to other high end Klipsch crossovers, at least it has air cores for the small coils, and no 0.05 cent caps. Now we just gotta find the coil values. Double check my sketch for mistakes. Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 9, 2019 Author Share Posted December 9, 2019 My mistake. I didn't post the picture with the coil values. They are written inside of each of the small cores. Quote Link to comment Share on other sites More sharing options...
STSOE Posted December 9, 2019 Author Share Posted December 9, 2019 3 minutes ago, STSOE said: My mistake. I didn't post the picture with the coil values. They are written inside of each of the small cores. Okay, i just checked and i didn't only forget to post it. I forgot to take it too. God damn it.😋 Well i guess i'll have to take out the bottom woofer again on one of them to take one more before i start ordering stuff. They didn't write any value on the big one though. Which is hella annoying. Any idea how i find out the value of that one? Quote Link to comment Share on other sites More sharing options...
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