• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Zilch's AK Design Collaborative - Econowave Speaker

Econo woofers, what say ye?

Vaughn said:
My friends have heard my E-waves and now demand a pair for themselves...

I know this has been covered before but I can't seem to find any info. Is there a current production, reasonably priced (<$100) woofer that would work well in the E-wave?

These will be a combination of pa speaker for playing out and a speaker to use in the house when at home.
Click to expand...

Project is spreading like wildfire, still! It seems like perhaps one "econo" woofer that seems to keep coming up is the dayton classic 10 inch. Wish it had a little more efficiency, but sure seems to be successful here in a couple of projects, and at its price ( a little more that the Indignia woofer, I think < 30 bucks ) certainly may need looked at closer, maybe a crossover LF section designed for it, like the LE14A had designed for it. Or maybe there's a better "econo" 10 or 12 inch here at PE?

Russellc
 
Russellc said:
Project is spreading like wildfire, still! It seems like perhaps one "econo" woofer that seems to keep coming up is the dayton classic 10 inch. Wish it had a little more efficiency, but sure seems to be successful here in a couple of projects, and at its price ( a little more that the Indignia woofer, I think < 30 bucks ) certainly may need looked at closer, maybe a crossover LF section designed for it, like the LE14A had designed for it. Or maybe there's a better "econo" 10 or 12 inch here at PE?

Russellc
Click to expand...

Zilch says that GordonW recommended the Dayton Classic 12, and I notice that its t/s specs are similar to the LE14A. But it and the 10" version have a response peak to deal with that's pretty close to the crossover point to the EWG. Maybe that's not a problem? Maybe the LE14 crossover, with it's lower xover point, would work well with them?
 
Russellc said:
Project is spreading like wildfire, still! It seems like perhaps one "econo" woofer that seems to keep coming up is the dayton classic 10 inch. Wish it had a little more efficiency, but sure seems to be successful here in a couple of projects, and at its price ( a little more that the Indignia woofer, I think < 30 bucks ) certainly may need looked at closer, maybe a crossover LF section designed for it, like the LE14A had designed for it.
Click to expand...
I used it in KLH-17, and did a custom filter for it, but that is a dedicated design with a way-small box, different waveguide requiring different HF comp, and a substantial amount of diffraction loss compensation.

That worked out well, and several other members have built that design successfully.... :yes:
 
Stories of 2 two-ways, sort of EWG related

Sort of EWG related: I made a quick'n'dirty two-way for shop tunes, using JBL 2226 and Martinelli horn: http://audiokarma.org/forums/showthread.php?t=209940

More EWG related: I'm using a constant directivity horn at the moment for the HF of a BLH cabinet, and this might be my preferred choice over a tractrix horn.
http://audiokarma.org/forums/showthread.php?t=148048

I still find Bruce Edgar's round tractrix a better choice for pinpoint imaging (and will probably wind up with his 500hz on top of 2226 in my living room), but that's not what I'm looking for with the BLH room. The CD dispersion just seems a better match with both the soundfield of the 3' wide basshorn AND the sounds-big-and-good-everywhere intent of that listening room, which may wind up as home theater -- with no apologies!

If the 2226 setup ends up in my living room, I might try the EWG with a different setup in the workshop, using some 10" giant-killer woofers in 4 cu ft cabinets built in to the walls, sort of.
 
Zilch said:
I used it in KLH-17, and did a custom filter for it, but that is a dedicated design with a way-small box, different waveguide requiring different HF comp, and a substantial amount of diffraction loss compensation.

That worked out well, and several other members have built that design successfully.... :yes:
Click to expand...

What was the low frequency crossoverpoint? I mean electrically, not accoustically. Was its (dayton 10 inch) rise near the crossover point dealt with in a similar fashion to the LE14A?

thanks,
Russellc
 
The Dayton woofers both seem to have a peak at about 2k, but the 10 inch has a stronger 'dip' near 700 Hz. The t/s parameters for the 12 are really close to the LE14A - almost the same mms, fs and VAS, slightly higher Qts, higher Le, and a bit lower efficiency. It has an aluminum voice coil! Costing under $40 has me curious.:scratch2: Xmax of 4.3mm is probably OK for home use, but it might be a limiting factor for those looking for something really loud.
 
Russellc said:
What was the low frequency crossoverpoint? I mean electrically, not accoustically. Was its (dayton 10 inch) rise near the crossover point dealt with in a similar fashion to the LE14A?
Click to expand...
Someone'll have to calc it; the acoustic response is posted in the KLH-17 thread.... :dunno:
 
Zilch said:
Someone'll have to calc it; the acoustic response is posted in the KLH-17 thread.... :dunno:
Click to expand...

I'll have a look at that thread, do you remember if the Dayton had this rising response problem? Seems like I remember someone commenting about a peculiarity in the way either Dayton or PE measured them that caused a similar anomoly, or am I confusing another driver?

Russellc
 
Zilch, will the 7x7 Dayton waveguide from the ZLH project work with the original Econowave design. I ordered all of the crossover materials from the parts list from the Econowave project summary plus the Selinium D220Ti,s but I ordered the Dayton 7x7 waveguid. I will be mating them with HPM 12" woofers.
 
oldskl said:
Zilch, will the 7x7 Dayton waveguide from the ZLH project work with the original Econowave design. I ordered all of the crossover materials from the parts list from the Econowave project summary plus the Selinium D220Ti,s but I ordered the Dayton 7x7 waveguide. I will be mating them with HPM 12" woofers.
Click to expand...
It will work, yes, but requires additional HF comp, i.e., mods to the highpass filter, meaning R1, R2, and C3 may be different for optimum flatness in the HF response.

You might order the alternative values I used for those specific components with that waveguide in KLH-17 and try both.... :yes:
 
I have arrived to the future. I got the crossover materials for the JBL wave guides but the wavegiudes for the ZLH-17 project. Even though a few of the crossover components are not a direct match for the Dayton WG,s they still sound pretty damned impressive. I paired them with a pair of Bose interaudio 4000 speakers from the 90,s. they have a dual port 10" woofer and the bottom end is a bit boomy. I A-B,d them with My HPM 100,s and they are alot more balanced. Here are a few pics.
 

Attachments

  • DSC00251.JPG
    DSC00251.JPG
    151.5 KB · Views: 55
  • DSC00250.JPG
    DSC00250.JPG
    140.1 KB · Views: 45
  • DSC00249.JPG
    DSC00249.JPG
    144.1 KB · Views: 52
  • DSC00247.JPG
    DSC00247.JPG
    152.2 KB · Views: 54
  • DSC00248.JPG
    DSC00248.JPG
    154 KB · Views: 75
HEY, it's OldsklLab! :banana:

Very nice build on the E'Wave crossovers. :thmbsp:

Swap in the JBL waveguides, and you be an "Official E'Waver."

[Invert the Bose (woofer toward the top) and they'll be less boomy, perhaps.... :yes: ]
 
"[Invert the Bose (woofer toward the top) and they'll be less boomy, perhaps.... "

What Zilch said,

-------------------------

Also is that plexi for the xovers?
If so man I'd peal that paper protector off there in a heartbeat and show it clear, :smoke:
 
You must log in or register to reply here.
Back
Top Bottom