Aura NS6-255-8A with Dayton DC28F tweets

[illnastyimpreza]

I'm looking to put together a simple in wall speaker. These will be used for my computer speakers. Can someone design me a quick crossover? doesn't need to be crazy, 12db would be fine.

thanks !

 

[Einric]

3rd order worked out really well.

 

[illnastyimpreza]

awesome thanks !

 

[Einric]

It is a SOLID 4Ω load with an impedance minimum of about 2.9Ω in the simulations.

 

[fastbike1]

Do yourself a favor, look at this design instead. Much better sounding tweeter.

Aura NS6-255 and Vifa BC25SC TM

I'm looking to put together a simple in wall speaker. These will be used for my computer speakers. Can someone design me a quick crossover? doesn't need to be crazy, 12db would be fine.

thanks !

 

[Dissi]

Another proposal, a basic 2nd-order crossover:

 

[illnastyimpreza]

I had no idea crossover components where so expensive. would I be ok just going with a 1st order? 1.7MH coil for the woofer and a 8.2UF cap for the tweeter?? Should I still use a resistor for a zobel?

 

[Einric]

You will blow that tweeter up at 2khz with only a 1st order XO.

What is your desired budget?

You could take the Dayton B652 and cut the front baffle off the enclosure.
Mount the front baffle to the wall and build in an equal size enclosure in the wall.
That would make it cheap and OK sounding.

If you want to make it better then you could go with the Zaph Audio tweaks for it.

 

[Einric]

Possible First Order Setup

You could try this.

I would call this a 6Ω design with a first order crossover at 4500hz.
I have used this tweeter at 4500hz 1st order and it worked very well.

Use the same box specifications as before.

 

[illnastyimpreza]

You could try this.

I would call this a 6Ω design with a first order crossover at 4500hz.
I have used this tweeter at 4500hz 1st order and it worked very well.

Use the same box specifications as before.

The caps come in 6.2UF and 6.8uf. Which one do you think would work better?

also, what guage inductor is neccessary? this will be a pretty low wattage system...

 

[illnastyimpreza]

also,the LPAD is just a resister correct? There is no value for RP1 in the chart.

I see you incorporated some EQ adjustment for the woofer in the crossover?

and what is REQ and CE ?

 

[Einric]

The 1 parallel resistor in the tweeter circuit is all you need.
The 6.8uf will work just fine.
18-20awg inductor is just fine.

REQ & CE are the Woofer Zobel.
They will help to tame the woofer and make it play nice in the crossover.
You need them, the 15uf cap for Ce can be a regular Non-Polar Electrolytic.

 

[Einric]

Update.........
Use a 4Ω resistor for Req. It makes the phase tracking and reverse null extremely good.

 

[illnastyimpreza]

fantastic einric thanks. I'm gonna order everything once I figure out what I'm gonna use for an amp.

Right now I'm using a Yamaha 5.1 receiver to power my bookshelf computer speakers AND the front room in walls speakers with sub.

I simply need more power to the front room...

 

[Einric]

Keep in mind this speaker would be somewhere between an 4-6Ω design.
Please keep that in mind.
Also remember.....this is only a simulation, not an exact science.
Will it be better than most off the shelf "garbage"? Probably.
Will it be better than a well designed 2-Way from a mainstream builder? Maybe.
Will it be the next revolution in audio design? NO WAY!

 

[geraldfryjr]

Very Cool!!!
I have been modeling that driver lately myself.
I will be very interested in hearing about your impressions with it, once you get it going.

Cheers !!

jer

 

[illnastyimpreza]

just ordered everything. I noticed there was no value in the chart for RP1? did it miss something?

go 10 bucks off my parts express order AND free shipping.

 

[Einric]

Nope I removed Rp1 and tweaked Rp2 to give the response shape needed.

 

[illnastyimpreza]

cool thanks. I have my office demod. I'm gonna be mounting the speaker boxes right in the studs and going with an "old wood" look....IE no drywall on my desk wall....kinda like an accent wall or something.

I'm building my computer desk out of 3/4'' cabinet grade particle board and dimensional lumber. Then mounting my monitor on the wall in between the studs. Then the speakers in the adjacent cavities.

I'll post pictures as I go !

 

[illnastyimpreza]

I forgot to order the port tubing. Can I just swing by home depot and grab some 3'' PVC piping?

I also forgot computer circuit board to build the crossover on.... guess ill hit up radio shack.