hi XRK,
i am getting an offer for RS180 7" woofers. whats your opinion about these model compared to RS225? how much difference i am going to see? i beleive box dimensions will remain more or less same(?) but xover will change.
i am getting an offer for RS180 7" woofers. whats your opinion about these model compared to RS225? how much difference i am going to see? i beleive box dimensions will remain more or less same(?) but xover will change.
These are totally different drivers. You can’t use the same XO for RS225 and expect it to work. Perhaps someone can model it on Xsim using factory curve. You will have significantly less bass since Sd is less, Qts is lower, fs is different, etc.
Great news over here.
I finally got a contact at Usher. They won't let me tour the factory, but I can buy their drivers.
The bad news is they updated their price list. A similar woofer to the RS225 is 2 to 3 times pricier than the Dayton.
I finally got a contact at Usher. They won't let me tour the factory, but I can buy their drivers.
The bad news is they updated their price list. A similar woofer to the RS225 is 2 to 3 times pricier than the Dayton.
Wow 3x more!? You might as well get a ScanSpeak or similar. The RS225-8 is a great driver in its own right but hard to justify $150-$200 price range. But I did not know that Usher is the OEM.
What you need is a friend who travels between US and Taiwan often and have them bring back a Parts Express order in their luggage.
What you need is a friend who travels between US and Taiwan often and have them bring back a Parts Express order in their luggage.
No, I meant the Usher drivers.
The cheapest is $100 (8935A). 8935A1 – USHER
and the more expensive ones are $150 (8955A). 8955A – USHER
Quite the price hike from $50 RS225.
Still, might be worth it.
They have a few tweeters, a mid, 11" and 15" bass woofers (that 15" is $400!)
Yes, I wish I had a friend travelling a lot and could lug around some drivers for me! 🙂
The cheapest is $100 (8935A). 8935A1 – USHER
and the more expensive ones are $150 (8955A). 8955A – USHER
Quite the price hike from $50 RS225.
Still, might be worth it.
They have a few tweeters, a mid, 11" and 15" bass woofers (that 15" is $400!)
Yes, I wish I had a friend travelling a lot and could lug around some drivers for me! 🙂
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Luckily, the cheaper one models nicely in a vented enclosure... and even better in a MLTL.
Although, I wonder how much better the more expensive are... if any better...
Although, I wonder how much better the more expensive are... if any better...
Attachments
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LeornardAudio... unfortunately not pursued by the owner anymore, and still free!
If you need the link for a download, I'll look it up.
I love the graphical interaction, more than the segment oriented HornResp... easier for me to "get it".
If you need the link for a download, I'll look it up.
I love the graphical interaction, more than the segment oriented HornResp... easier for me to "get it".
i just got to know that the Allo Piano DAC 2.1 has very good builtin DSP core which would allow for upto 24db two way crossover. I will try this too along with passive. have anybody tried it here?
(please excuse me if i have missed any post, as its a pretty long thread)
(please excuse me if i have missed any post, as its a pretty long thread)
I have used miniDSP and that worked well. What software will you use for the Allo DAC/DSP? Perhaps Jriver could work?
My Focusrite 2i4 has 4 outputs which could probably be configured to be any filter output for a 2 Way XO. Of course, one needs 4 channels of amps then.
Allo DAC/DSP is having TI's DSP module integrated into the DAC chip. TI provides purepath graphical interface for programming. see below thread,
Raspberry Pi with Piano2.1 DAC DSP and Volumio2
DonVK has done experiements with this DAC/DSP
so as i understand, 2way xover and EQ is possible
Raspberry Pi with Piano2.1 DAC DSP and Volumio2
DonVK has done experiements with this DAC/DSP
so as i understand, 2way xover and EQ is possible
Oh very cool! Thanks for alerting us of this option. Great to see some work already done on DIYA. I never knew a small DAC like PCM5142 has a built in nanoDAC!?
I wonder if the sound quality is better or worse than miniDSP?
I wonder if the sound quality is better or worse than miniDSP?
it should be better because there is no analog-to-digital conversion stage. and i think DAC is better than what you will find in minidsp
Hi XRK,
I want to built these speakers, can you guide me with the internal dimensions and dimensions of dagger. Is the dagger Sealed?
Sadik
I want to built these speakers, can you guide me with the internal dimensions and dimensions of dagger. Is the dagger Sealed?
Sadik
Thanks for your interest. The dimensions are given in the first paragraph of post #1. Dagger is sealed and alternative to making it out of wood or foam core is to use a sports field marker cone or pylon. The critical dimensions are that overall internal volume be about 24L and baffle width about 10in. You can play with the rest but will find height to end up around 18in. Best Dagger is made from 5 triangular panels.
It’s a very straightforward design. Just a Dagger within a box. Try to get center to center spacing as close as possible. You can make full range centered or slightly offset. Flush mount the drivers though as that reduces diffraction. Round over the edges if you can and add round over on backside of driver cutouts for air flow.
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It’s a very straightforward design. Just a Dagger within a box. Try to get center to center spacing as close as possible. You can make full range centered or slightly offset. Flush mount the drivers though as that reduces diffraction. Round over the edges if you can and add round over on backside of driver cutouts for air flow.
Oh curse the hop gods. I'd have realised that wasn't a cheese grater earlier if I hadn't had a beer or 2. Although..... Excellent buck/former idea!
Hi X -
Quick question: the woofer zobel is 4.4uF and 470m Ohms? Seems like a huge resistance here. I haven't found much commentary on this zobel and its effectiveness. Also, I have assumed that R4 truly is as shown "intrinsic to L4." There is a much earlier listing of components that indicates an actual Dayton 1 Ohm resistor as R4.
I'm progressing with the 18mm BB cabinets, but I went with earlier external dimensions showing a baffle width of 11.5 in, height 15.75 in. Really different from the 2018 vintage box! Looks kind of fat and short in comparison. Looks better with offset tweeter/widerange.
I've experienced this confusion before in trying extract all the most current info from a very long development thread. Many changes large and small over 1420 posts.
Fun fact - after rejecting the orange safety cone dagger I've come around and ordered some dark red ones. I'm also thinking they'll help by using less baffle area than what I had planned in 1/4 ply.
Cam
Quick question: the woofer zobel is 4.4uF and 470m Ohms? Seems like a huge resistance here. I haven't found much commentary on this zobel and its effectiveness. Also, I have assumed that R4 truly is as shown "intrinsic to L4." There is a much earlier listing of components that indicates an actual Dayton 1 Ohm resistor as R4.
I'm progressing with the 18mm BB cabinets, but I went with earlier external dimensions showing a baffle width of 11.5 in, height 15.75 in. Really different from the 2018 vintage box! Looks kind of fat and short in comparison. Looks better with offset tweeter/widerange.
I've experienced this confusion before in trying extract all the most current info from a very long development thread. Many changes large and small over 1420 posts.
Fun fact - after rejecting the orange safety cone dagger I've come around and ordered some dark red ones. I'm also thinking they'll help by using less baffle area than what I had planned in 1/4 ply.
Cam