My "Stealth" OB recipe

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gainphile2

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My "Stealth" OB recipe
« on: 10 May 2008, 08:42 am »
Hi... I'm into OB stuff and there's no way back.. but I'm building a Pluto just because I want to. My current "stealth" ob has been with me for quite sometimes with no itch to upgrade  :P.. the recipe is:

Take one vifa tweeter, cross it passively using 2nd order LR at 6kHz. Take one Vifa P13WH and connect directly.. no xo as it rolls off naturaly at 6kHz.. and mix the above using one gainclone amp. Burn in.

Then take 1 cheapish jaycar 10" woofer but have qts of 0.7, build 120hz lowpass and equalise it at -db towards low freq. Connect to 2nd gainclone.

Make another one for the other channel and. Mix the two and enjoy the sound.


ttan98

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Re: My "Stealth" OB recipe
« Reply #1 on: 10 May 2008, 10:33 am »
Buy a digital x-over DCX2496 at US$250 plus US$80 postage cost less than AUD$450 in melb. cheapest you can find.

Using this unit you will not go back, at the same time and gives you more flexibility and more importantly more accurate Freq Resp. curve.

planet10

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Re: My "Stealth" OB recipe
« Reply #2 on: 11 May 2008, 03:36 am »
Buy a digital x-over DCX2496 at US$250 plus US$80 postage cost less than AUD$450 in melb. cheapest you can find.

Using this unit you will not go back, at the same time and gives you more flexibility and more importantly more accurate Freq Resp. curve.

Really useful for XO development but i couldn't live with a stock one in a regular system as they don't sound all that good.

When i replace the loaner with one i own, i'll mod it significantly.

dave

ttan98

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Re: My "Stealth" OB recipe
« Reply #3 on: 11 May 2008, 06:55 am »
Buy a digital x-over DCX2496 at US$250 plus US$80 postage cost less than AUD$450 in melb. cheapest you can find.

Using this unit you will not go back, at the same time and gives you more flexibility and more importantly more accurate Freq Resp. curve.

Really useful for XO development but i couldn't live with a stock one in a regular system as they don't sound all that good.

When i replace the loaner with one i own, i'll mod it significantly.

dave

Looks like you are die hard passive components x-over users, I intend to design a passive x-over once my speaker design is finalised. Reasons:

1. don't want to have  too many expensive components(caps and inductors not being used) hanging around not being used, it gets too expensive, hundreds of dollars.
2. make some comparison with my existing active x-over, looks like you found and decided which one is better. If it is better I want to know how much better, by a wide margin or marginal?

cheers.





gainphile2

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Re: My "Stealth" OB recipe
« Reply #4 on: 11 May 2008, 08:15 am »
Dave, I've been looking at the 2496. I heard it is sucessfully used in Physics CS2. I agree it is a good investment as there is no need to buy (anymore) parts. Can it do automatic adjustment using mic?

Where is the store which sells at that price ?

JimJ

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Re: My "Stealth" OB recipe
« Reply #5 on: 11 May 2008, 03:22 pm »
Buy a digital x-over DCX2496 at US$250 plus US$80 postage cost less than AUD$450 in melb. cheapest you can find.

Using this unit you will not go back, at the same time and gives you more flexibility and more importantly more accurate Freq Resp. curve.

Really useful for XO development but i couldn't live with a stock one in a regular system as they don't sound all that good.

When i replace the loaner with one i own, i'll mod it significantly.

dave

Looks like you are die hard passive components x-over users, I intend to design a passive x-over once my speaker design is finalised. Reasons:

1. don't want to have  too many expensive components(caps and inductors not being used) hanging around not being used, it gets too expensive, hundreds of dollars.
2. make some comparison with my existing active x-over, looks like you found and decided which one is better. If it is better I want to know how much better, by a wide margin or marginal?

cheers.






I'm not a die-hard passive Xover user, and I wouldn't recommend the Behringer either :)

I think the DBX Driverack unit is better, albeit more expensive.

Nothing wrong with active, as long as the components are up to snuff.