@xrk971 Hello! I am wondering, how do you decide what size dagger to use for a driver? I am curious about how you arrive at the internal volume, and then how much of that space to allocate to height vs base diameter. I'm guessing the shape of the dagger will depend on the range of the passband? As for the volume, my intuition was to just treat it like a regular sealed box..but I'm second guessing myself
I tried to find an instance of you talking about this already. Maybe I'm just not using the right keywords, but I couldn't find anything 😕
So, sorry if this is something you've already talked about!
I tried to find an instance of you talking about this already. Maybe I'm just not using the right keywords, but I couldn't find anything 😕
So, sorry if this is something you've already talked about!
Mostly it is based on practical considerations like fitting the driver and keeping the size compact enough. The volume as a sealed rear chamber not having to reproduce any bass makes it easy. Almost anything will do but just not too small. If on the other hand, you need the full range driver to make bass, then you need enough volume to be at least 1/2 of the Vas. In this case, it might make more sense to use the spiral Nautaloss design.
About to do the PS95 and Rs225-4 I seen this- ( https://www.diyaudio.com/community/threads/whats-on-the-bench-tonight-obt.372508/post-7632467)
was wondering is what R1 value would you use for ORIG XO paired with Daytons? I cant afford snagg those SB woofers...And I have a lot of Rs225-4 going to waste lol. @xrk971 I did the RS100 version a few years ago and was a little on dull side so hoping for better with PS95
was wondering is what R1 value would you use for ORIG XO paired with Daytons? I cant afford snagg those SB woofers...And I have a lot of Rs225-4 going to waste lol. @xrk971 I did the RS100 version a few years ago and was a little on dull side so hoping for better with PS95
Finally finished my version of the TL’s
Absolutely Beatiful work!
I'm probably just a weirdo but my mind wandered to "Little Shop of Horrors" 😀
Attachments
Which driver? I think those horns are designed by you! phenomenal! do share some measurements, if you can!
cheers!
Hi All,
To those who have used the SB23NRXS45-8 woofer and flush mounted it, do you feel there is any need to double the front baffle? The flush mount rebate is basically half the baffle thickness and I guess this just makes me a little nervous.
Cheers Richard
To those who have used the SB23NRXS45-8 woofer and flush mounted it, do you feel there is any need to double the front baffle? The flush mount rebate is basically half the baffle thickness and I guess this just makes me a little nervous.
Cheers Richard
Richard,
Assuming that you are using 18mm thickness material for baffle, you will still have 9.5mm material behind driver - with decent quality plywood, this should be adequate. You can increase the baffle thickness by 6-9mm by adding a layer of plywood/mdf if you want too (more peace of mind 🙂.
Assuming that you are using 18mm thickness material for baffle, you will still have 9.5mm material behind driver - with decent quality plywood, this should be adequate. You can increase the baffle thickness by 6-9mm by adding a layer of plywood/mdf if you want too (more peace of mind 🙂.
Thanks zman01,
Sound advice. I'll make that decision based on the quality of the plywood I can get hold of 🤞
Sound advice. I'll make that decision based on the quality of the plywood I can get hold of 🤞
So I have searched and searched, Why the dagger? why not just sealed off? Im actually going to re-try this build. I have TEN RS225-4 I need to use or throw away. I also have 5 RS100. But im ordering some PS95--- Got test one up now no back to it but rs100 is sealed off and seems fine.
less standing waves due to non parallel walls...................
cool, you can do 5 speakers as mmt ?
That would be awesome
cool, you can do 5 speakers as mmt ?
That would be awesome