4343
Super Member
Sounds like a plan... Was there a crossover worked out for that combo?
Just remember to order the bolt-on version of the D220Ti to fit the QSC, not the thread-on version.
Zilch's AK Design Collaborative - Econowave Speaker
- Thread starter Zilch
- Start date
Sounds like a plan... Was there a crossover worked out for that combo?
Just remember to order the bolt-on version of the D220Ti to fit the QSC, not the thread-on version.
foofighter
Moonshiner
Here's the xover on TechTalk that can be used as starting point for it:
http://techtalk.parts-express.com/showthread.php?p=1658207#post1658207
Last edited:
I don't think Zilch got around to building that version of the Econowave, Brian. perhaps someone else here on AK has built the bolt on D220ti/QSC combo?
From AVS Forum:
From AVS Forum:
Zilch said:
mccarty350
Super Member
Greetings all. With help from Jack I have assembled and have operating a set of Radio Shack Monitor 8b econowaves. Specs are baseline across the board, wave guide is the Pyle JBL knockoff that Jack used in his conversion (I want to say 6.5" x 12"?), tweeter driver d220ti, crossover bone stock econowave standard on the zilchlab PCB's (thanks Wiredbecker!). Sounds phenomenal and the stock Nova 8b drivers have bass in spades, doesn't seem to be much need for a sub. Dispersion pattern is quite wide, sweet spot is huge. The only painful issue was cutting the baffle to accommodate the horn while removing the 3 tweet/midranges that appear in a triangular formation on a Nova 8b. Add me to the list of completed econowavers! I will post pics as soon as the wood putty is sanded and the baffles are painted, don't want to post a pic until they are pretty. I also have not yet cut the stock crosshatched grill's backing in the shape of the horn.
McCarty350
McCarty350
Congrates. Yes do post pix.
Oh cool, what component value changes did you make to the standard crossover? Brian is itching to start building.
Hey there McCarty,
We need a pic of your project!
I'd really like to add you to the list of official E'Wavers. Unfortunately I don't have the access to edit Zilch's post. Any chance a kindly mod would be willing to add McCarty (#122) and djginwis (#121) to the Official AK E'Waver List here: http://audiokarma.org/forums/showpost.php?p=2260584&postcount=2409
Thank you in advance...
We need a pic of your project!
I'd really like to add you to the list of official E'Wavers. Unfortunately I don't have the access to edit Zilch's post. Any chance a kindly mod would be willing to add McCarty (#122) and djginwis (#121) to the Official AK E'Waver List here: http://audiokarma.org/forums/showpost.php?p=2260584&postcount=2409
Thank you in advance...
skywave-rider
Slumming in Akihabara
While I am grateful for the nomination, I merely aspire to Zilch's level of participation and development at this point. I need to get the Zilchlab set up properly, learn to measure speakers and post the accompanying data. Not to mention, make more Econowaves!
In short, I'm not quite there... but I'm trying!
In short, I'm not quite there... but I'm trying!
DCinDC
I'm here to fix it
Howdy!
After weeks of reading and thinking and digesting and learning.....
Hats off to Zilch, Jack, and Wayne and the rest of you guys!
I recently got a set of New Advent Loudspeakers. I like the bass! The highs weren't perfect for me, and I LOVE messing around with speakers. I don't have room for woodworking projects so I do alot of redrivering.
I've been on AK for over a year and was wondering what the whole EW thing was about. Then I got that it was just what I have been looking for! A mid/high module that works!
Well once that cog turned in my head I was casting about looking at all my speakers and thinking of EW mods! The Advents were on the list, along with my Pioneer HPM-40s.
The price of the Selenium drivers was kindof keeping me at the 'thinking about it' stage... I'm brutally cheap, and poor at the moment.
Then last week I scored a set of Selenium DH200s with HM17-25 horns from ebay for like 40 bucks shipped. Yes, basically half price even though it's not the right parts. I checked all the docs and it looks like I was giving up about 5dB sensitivity, and the top octave response. But that price it was doable, and the lesson would surely be worth it.
They arrived today! My Advents have some bad resistors in them so the tweeters only work on the enhanced position of the switch, so it is easy to disable the tweeters.
I put the horns on top and rummaged thru my junkbox and came up with some resistors and capacitors to make the HF portion of the EW xover.
Sh***yit!
Now I used the wrong driver, the wrong horn and obviously underated components. And it sounds REAL.
Placing my PE order now to get the right stuff....
To sum up the important things I learned from Zilch and this thread:
1- the new waveguides are high tech and make this all possible.
2- the CD compensation in the xover is the key to getting the flat response.
3- this gives life to many speakers that would otherwise be junked.
4- EVERYBODY should do this!
I warn you though, it sounds so good you will want to turn it up! I've found the Advent's limits and am now seriously considering doing this to my much modified HPM-150s with Heils.
edit: I forgot to mention. I was the anti-horn guy. This totally changed my tune!
After weeks of reading and thinking and digesting and learning.....
Hats off to Zilch, Jack, and Wayne and the rest of you guys!
I recently got a set of New Advent Loudspeakers. I like the bass! The highs weren't perfect for me, and I LOVE messing around with speakers. I don't have room for woodworking projects so I do alot of redrivering.
I've been on AK for over a year and was wondering what the whole EW thing was about. Then I got that it was just what I have been looking for! A mid/high module that works!
Well once that cog turned in my head I was casting about looking at all my speakers and thinking of EW mods! The Advents were on the list, along with my Pioneer HPM-40s.
The price of the Selenium drivers was kindof keeping me at the 'thinking about it' stage... I'm brutally cheap, and poor at the moment.
Then last week I scored a set of Selenium DH200s with HM17-25 horns from ebay for like 40 bucks shipped. Yes, basically half price even though it's not the right parts. I checked all the docs and it looks like I was giving up about 5dB sensitivity, and the top octave response. But that price it was doable, and the lesson would surely be worth it.
They arrived today! My Advents have some bad resistors in them so the tweeters only work on the enhanced position of the switch, so it is easy to disable the tweeters.
I put the horns on top and rummaged thru my junkbox and came up with some resistors and capacitors to make the HF portion of the EW xover.
Sh***yit!
Now I used the wrong driver, the wrong horn and obviously underated components. And it sounds REAL.
Placing my PE order now to get the right stuff....
To sum up the important things I learned from Zilch and this thread:
1- the new waveguides are high tech and make this all possible.
2- the CD compensation in the xover is the key to getting the flat response.
3- this gives life to many speakers that would otherwise be junked.
4- EVERYBODY should do this!
I warn you though, it sounds so good you will want to turn it up! I've found the Advent's limits and am now seriously considering doing this to my much modified HPM-150s with Heils.
edit: I forgot to mention. I was the anti-horn guy. This totally changed my tune!
Attachments
Last edited:
Thanks for sharing your experiences DC! If you think it's good now, just wait until you get your actual Econowaves up and running.
DCinDC
I'm here to fix it
wiredbecker suggested I post the dh200 driver pdf.
I don't want to derail the thread, and this is only germane because I scored the dH200s cheap. The top octave is where it appears to roll off, but I'm probably not missing much.
When I get it all done correctly I'll post some response curves.
I don't want to derail the thread, and this is only germane because I scored the dH200s cheap. The top octave is where it appears to roll off, but I'm probably not missing much.
When I get it all done correctly I'll post some response curves.
Hmm, there's an impedance spike and sharp phase angle right at the crossover point on that horn - that could get weird, no? Also, is it just me or is it super weird that they published asymmetric horizontal polar responses? Anyway, with the usual crossover topology, it looks like you could get that treble pretty flat with a little rise in the extreme HF if you wanted, except for that 10k notch... It would be interesting to see what you get on one of the usual CD waveguides.
foofighter
Moonshiner
here it is.
Attachments
bwaslo
Active Member
All those curves seem to be on their horn, which will have a lot of effect, can't tell what the driver itself does. I wouldn't sweat the impedance peak the L-Pad will hide most of it from the crossover. The low-end isn't very encouraging, but maybe that's the horn again.
Thanks for the info. My projects always take some time as my wife is not into them at all. I will order the horns and compression drivers first. And it maybe I can sock enough money to buy the woofers next month. Brian
foofighter
Moonshiner
Zonker92
All shiny and chrome
Hey, before I start ordering crossover parts, can I just confirm that the schematic below is the one people are using with LE14A woofers, per this post? Thanks for any input.
Attachments
Last edited: