Gather 'round the campfire, new project is a brewin' *56k, yeah right*

[PV Audio 5,000+ posts]

Okay y'all, new speaker time. Last go around (at least that I posted) was the tang band 871s 50.5" towers. This time, we've got something a little more conservative.



Semi-D'Appolito two way tower. Using the Dayton Reference Series 7" woofer, and the dayton dc28fs-8 tweeter (I'd link you, but my internet is being fixed as I type). Finishing is still up in the air, I probably won't do any sort of nice finish if I'm not 100% satisfied with them. X-overs are done (you'll see them later), and I'm going out to cut my wood right now. More pics later tonight.

-Dave

Click to read more...

 

[baseballer1100 5,000+ posts]

Woot!

 

[scotsman 10+ year member]

sounds nice, subscribed

 

[j3bus2k3 5,000+ posts]

Wanna build 2 extra? I'll order the drivers for you...//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[ballstothewall 10+ year member]

Got baffle step?? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

You should like those Dayton 7"s though.

 

[PV Audio 5,000+ posts]

More pics coming by 10 tonight. Got the cuts finished, going to start building. The only problem I'm seeing thus far is that the woofers are so large that I really can't add much bracing to the inside. I have one shelf brace below the last woofer and above the port, but I can't fit another one anywhere else //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif Any suggestions? I had to make it less deep (12" deep instead of 14") as well, so now the tuning is about 6 hz higher than what it was before, but since the original was tuned too low, it should be alright.

And yes, I do got baffle step. It seems that the entire reference series line is being plagued. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[ballstothewall 10+ year member]

Whats it tuned to?

You could brace between the top woofer and the tweeter, tweeter and the woofer, and then under the woofer if you wanna get carried away...

 

[joetama 5,000+ posts]

Looks interesting... Daytons are nice speakers for the money...

Also, make sure that your port isn't more than 1/2 wavelength of the highest freq on the low-freq drivers away from the port.

 

[CAMSHAFT 10+ year member]

Good luck. Looks interesting.....

 

[PV Audio 5,000+ posts]

It's tuned to 50 something, I left my flash drive downstairs. The bookshelf speaks I made with the 5" version tuned to 63hz sounded absolutely phenomenal, wish I wouldn't have sold those //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

Resizing and uploading pics now.

 

[PV Audio 5,000+ posts]

BTW, these cones are going to be flush mounted, don't get the wrong idea from the model...it's just a mockup //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Also, theoretically, wouldn't having the speakers randomly scattered horizontally provide a better sound? I know that you can cut down on diffraction by having them off center (note what I did with the tweeter, although that's the least important driver for this topic //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif ), but what about a diagonal line across? Considering that the baffle is only 7.5" wide and I'm not going to round the outside edges (I've never noticed a difference anyway), I'm not too concerned. But in theory, would doing that make a difference?

Anyway, pic time.

The woofer (one of four):

The tweet:

My ghetto crossovers. NOTE: DO NOT BUY THESE PCBs. THEY ARE AWFUL. Seriously. The holes are tinned probably the worst that I've ever seen. If you don't know what that means, it means that it's next to impossible to solder the components down. Someone link me to something better, I might as well be soldering to a cucumber:

First order Butterwork filter, L-Pad on tweeter, 3 dB attenuation. I've never used a 1st order, only 2nd and 4th order, so we'll see how it goes. Took alot shorter time //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Started:

Had a problem with my fence, I'm sending it out to get calibrated. The stupid POS was off by 1/16 from the tape measurer (the clamp caused it to move over 1/16 before it set firm). Oh well, you win some and ya lose some.

Down tha hatch 1:

Aaand numero 2:

That's it, I'll try and have these guys finished within a decent amount of time. Bought a new router bit too (new straight bit), so we'll see how that turns out as well.

 

[PowerNaudio 10+ year member]

looking good so far.

for the xovers have you though about just buy the pcb boards and making the traces your self it will look more professional that way. here is a link for a store with good prices, http://www.oselectronics.com/ose_p55.htm im sure you can find it cheaper on ebay or something.

 

[96civ 10+ year member]

Is there a tutorial on how to make x-overs? That sounds 100% noobish, but oh well.

 

[Eugenics 5,000+ posts]

these aren't going to take you months to finish like the last ones are they? because i'll click unsubscribe right now. i swear.

 

[PowerNaudio 10+ year member]

Is there a tutorial on how to make x-overs? That sounds 100% noobish, but oh well.

this should get you started.

or this