I had another go at quoting for some 3d printing and got s much better one so I had the adaptors made. Also had some done for XT25 to WG148.
So I drilled some extra holes to mount the driver dans front plate and managed to remove the mesh grille but leaving the phase shield. The dome fits better into the throat of the guide without the added thickness of the phase shield but it does fit. With the adaptor screwed to the guide, the guide throat needed a fraction sanding off to make flush.
Will get to do a new baffle for them one of these days!
So I drilled some extra holes to mount the driver dans front plate and managed to remove the mesh grille but leaving the phase shield. The dome fits better into the throat of the guide without the added thickness of the phase shield but it does fit. With the adaptor screwed to the guide, the guide throat needed a fraction sanding off to make flush.
Will get to do a new baffle for them one of these days!
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Hi X.
Just wondering, how you think the rS225-8 and DC28f-8 combo would go in your FAST TL cabinet design? I currently have both just slapped in a rough box and a very simply XO, but would like to get more/better results from these fine drivers...
You feed back would be much appreciated.
Thanks
Just wondering, how you think the rS225-8 and DC28f-8 combo would go in your FAST TL cabinet design? I currently have both just slapped in a rough box and a very simply XO, but would like to get more/better results from these fine drivers...
You feed back would be much appreciated.
Thanks
The RS28F of RST28F in a waveguide and RS225-8 in a TL would work great. The TL handles the response below 100Hz and will give bass extension down to 28Hz. The XO I developed in post 1 is very rough and all theory. We won’t know for sure until a box is built and drivers measured.
Hi,
I'm building a similar project but 3way.
After finishing 2way FAST in TL base on 4" Fullrange with 225-8 I have to tray that woofer in 3way in a sealed enclosure.
My plan is to use
RST28f with waveguide WG300
midwofer rs180-8 or rs225-8
Sub Peerless 830669 ( 12")
Need some help in 3 cases:
Rs225-8 will be a better option than rs180 because I want to make an active XO for that sub 12" and the location of that sub will be onside like in that pic so 12" make only real low end that makes mid has to start at 100Hz in small seal box.
For you much more experience in XO, Please take a look at my project on XO for RS225 and Rs180 for any mistake
And what are you thinking all about it?
I'm building a similar project but 3way.
After finishing 2way FAST in TL base on 4" Fullrange with 225-8 I have to tray that woofer in 3way in a sealed enclosure.
My plan is to use
RST28f with waveguide WG300
midwofer rs180-8 or rs225-8
Sub Peerless 830669 ( 12")
Need some help in 3 cases:
Rs225-8 will be a better option than rs180 because I want to make an active XO for that sub 12" and the location of that sub will be onside like in that pic so 12" make only real low end that makes mid has to start at 100Hz in small seal box.
For you much more experience in XO, Please take a look at my project on XO for RS225 and Rs180 for any mistake
And what are you thinking all about it?
Attachments
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You might be interested in this. I have not built it yet though. All just simulations. RST28F and RS28F are interchangeable.
https://www.diyaudio.com/community/...ligned-rs225-8-and-rs28f-in-waveguide.360445/
https://www.diyaudio.com/community/...ligned-rs225-8-and-rs28f-in-waveguide.360445/
This is WG300 and RST28F crossed at 3500K,Bessel, without the grill.
Yes a little ride at 15K but it's ok.
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Just thought I'd update a little. I made a pair of 'bass modules' using RS225 sealed in about 28litres. Repurposed Wharfedale Laser 100 I bought cheap. Enclosures are span 90 degree to how they are as a Laser, and 12mm MDF added down each new side. Noico'd, foamed and stuffed with batting. No braces as of yet.
My initial thought is I'd like to try some OB mids and highs. I don't think I will manage OB bass. So I stared with a SB15 and an SB29 tweeter.
Funnily enough my playing in XSim with admittedly factory curves gave me some components remarkably close to the stock Wharfedale XO....so I had a go!
Sounded very decent although needed the highs attenuating...maybe the mids too. This is by ear BTW.
And then I recalled my RST28s and WG300 sat doing nothing. So I mocked this up. Again the values what XRK simmed for this WG design is close to the Wharfedale so I plugged in the RST28 into the XO. (4.7uf and 0.3mh) Sounded very nice. I did one at a time and the highs with the 28f seemed more subdued than the SB29RDNC. And I had attenuated the SB by 6db on that XO.
All pie in the sky without measurements I know. But interesting.
So one of these has 6.9uf and 1.5r series/ 3.3R shunt attenuation. The other is stock Wharfedale with 4.7 horrible old lytic and no attenuation. As a pair sounds very nice!
The RS225 is 2nd order 3.7mh and 25uf
So there is mileage in this 225/28f WG design!
Time tomorrow to swap out the old 3.7mh with some new much lower DCR jobs and to replace more of the old caps
My initial thought is I'd like to try some OB mids and highs. I don't think I will manage OB bass. So I stared with a SB15 and an SB29 tweeter.
Funnily enough my playing in XSim with admittedly factory curves gave me some components remarkably close to the stock Wharfedale XO....so I had a go!
Sounded very decent although needed the highs attenuating...maybe the mids too. This is by ear BTW.
And then I recalled my RST28s and WG300 sat doing nothing. So I mocked this up. Again the values what XRK simmed for this WG design is close to the Wharfedale so I plugged in the RST28 into the XO. (4.7uf and 0.3mh) Sounded very nice. I did one at a time and the highs with the 28f seemed more subdued than the SB29RDNC. And I had attenuated the SB by 6db on that XO.
All pie in the sky without measurements I know. But interesting.
So one of these has 6.9uf and 1.5r series/ 3.3R shunt attenuation. The other is stock Wharfedale with 4.7 horrible old lytic and no attenuation. As a pair sounds very nice!
The RS225 is 2nd order 3.7mh and 25uf
So there is mileage in this 225/28f WG design!
Time tomorrow to swap out the old 3.7mh with some new much lower DCR jobs and to replace more of the old caps
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