AK Design Collaborative - Insignia-Class Economy Speakers (a.k.a Indignia)
- Thread starter Zilch
- Start date
aspalmacin
New Member
Will using 1/4" plywood and mounting the crossover components to them and then attaching the XO "board" to the bottom of the cabinet cause any problems? I got the 1-1/2" PVC pipe from Lowes this morning and all I need now is some 20-22ga. hookup wire.
I notice that Parts Express sells self-resetting circuit breakers to protect the speakers from being over-driven. Are they any good/useful?
Al
dnewma04
The Healer
The 1/4" plywood for the crossover will work just fine, the PCB just makes it a bit easier for those with a soldering iron and not much else.
The circuit breakers probably wouldn't hurt, but I'm not sure they are needed. These arent high power handling party speakers, and under normal conditions, shouldn't be in danger of blowing a tweeter if that's your worry.
dnewma04
The Healer
I believe it's 37 hz typically, but somewhere in the 37-40hz range has been used to good effect. One of the pairs I built was sealed and it worked very well, as well.
aspalmacin
New Member
You're probably right; my thought was it would prevent any likelihood of excessive volume damaging the speakers or the crossover.
Al
aspalmacin
New Member
The layout for the baffle doesn't reference where the center of the woofer is. If I scale the diagram of the front cutouts, it looks like the center of the woofer cutout is 4.5" from the bottom edge of the baffle and centered across the width. Is this about right?
Al
Al
specialidiot
Break Glass, Smoke Lucky
I run my Indignias with my F5 as well. They've been paired and running every day for over a year and a half. That's like 87 in audio years.
I built a pair of XO's for an ejfud project a while ago and used the back of an old clipboard. I tie wrapped the components to the board, ran the leads to the back and hard wired everything. They aren't that complicated to do.
I have some questions - please help folks.
I am trying to build a set of these ewaves. I am using a GrordonW mix and match magic special 15" woofer. He rconed this specifically for me to do ewaves. It will do 30-well above the 1.2k needed. it has 95/96db spl 1w/1m.
My crossoever, the standard using the 1.5mH and 12uf cap seemed just a bit underwhelming.
GordonW suggested this
Crossover coil: 2mH
Cap: 10uf
Zobel (across woofer): 22uf cap in series with 6.8 ohm 10w resistor
SO, what does increasing the inductor and decreasing the cap do to the sound? More gain? Less Gain? Different frequency response? What?
I am not sue I know what a zobel(filter?) is or does. ANy laymans explainations?
Thanks for the help folks.
BTW - this is going into a 6 cubic foot box, curretnly tuned to 20hz. Made of 3/4" particle board, braced and stuffed with batting.
I am trying to build a set of these ewaves. I am using a GrordonW mix and match magic special 15" woofer. He rconed this specifically for me to do ewaves. It will do 30-well above the 1.2k needed. it has 95/96db spl 1w/1m.
My crossoever, the standard using the 1.5mH and 12uf cap seemed just a bit underwhelming.
GordonW suggested this
Crossover coil: 2mH
Cap: 10uf
Zobel (across woofer): 22uf cap in series with 6.8 ohm 10w resistor
SO, what does increasing the inductor and decreasing the cap do to the sound? More gain? Less Gain? Different frequency response? What?
I am not sue I know what a zobel(filter?) is or does. ANy laymans explainations?
Thanks for the help folks.
BTW - this is going into a 6 cubic foot box, curretnly tuned to 20hz. Made of 3/4" particle board, braced and stuffed with batting.
aspalmacin
New Member
Great, thanks.
My material of choice for XO's. :thmbsp: You can get one at Walmart for $.97 and generally get 4 crossovers out of it. Then I mount the leftover clip to the front of a shelf in the shop and use it to hold plans, schematics, etc. while working on the next project.
beans
Got arth-a-ritis
That sounds fine... just tie the parts to it with tie wraps & wire it point-to-point, and run leads up to the binding posts. I would mount the board with screws using wood shims at the corners and not bind-up the tie wraps on the bottom side. I used aluminum spacers from the same supply house where I got the project boards:
