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Wish List Poll your project wishes here

View Poll Results: Active Crossover?
Yes, as part of a WD loudspeaker kit. 6 30.00%
Yes, for adding a subwoofer to my existing 'speakers* 5 25.00%
Yes, as a generic solution for any two-way* 11 55.00%
Yes, but make it modular... three-way, four-way* 9 45.00%
No, I'd go elsewhere. 1 5.00%
No, there'd be no demand. 2 10.00%
Multiple Choice Poll. Voters: 20. You may not vote on this poll

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  #1  
Old 3rd January 2006, 02:02 AM
Lord.
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Default Active (valve) Crossover?

As the title says, but read the poll options too!

All options marked with an * assume that instructions for setting the crossover point and roll off rate would be included, I expect these would include a bag full of alternative and cheap starter components, upgradeable once the punter is happy.

N.B. The Poll allows you to vote for more than one option!

Last edited by Lord.; 3rd January 2006 at 02:14 AM.
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  #2  
Old 3rd January 2006, 01:32 PM
alexs2 alexs2 is offline
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Default Re: Active (valve) Crossover?

It's a fascinating possibility,but one I think that would have a very limited application,and therefore be unlikely to be cost effective as an offer.

Given that active speakers with offboard active crossovers are relatively few in number(and most producers of actives do so with their own dedicated systems,like Linn,Meridian and ATC),then the market for a standalone valve X-over is likely to be even more restricted,and the issues of tailoring a x-over for an individual system are more complex than simply frequency,and roll-off(Linn's for instance take into account a degree of phase correction,as well as bass level and extension,plus treble level).

Boxes like Bryston's active crossover are obviously quite pricey,but even at half the price,would give an idea of the likely costs involved.
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  #3  
Old 3rd January 2006, 01:45 PM
Ianm2 Ianm2 is offline
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Default Re: Active (valve) Crossover?

I think that this one is perhaps a bit too complex and specialist to be do-able, but you never know.
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  #4  
Old 3rd January 2006, 05:17 PM
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KTea88 KTea88 is offline
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Default Re: Active (valve) Crossover?

Great, would be a fine thing to build.
I currently run a Behringer active xover fed from a preII.
into a wad kat88 LF and kat84 HF driving Home brew TL's fitted with 6" Tannoy DC's with Tannoy super tweeters
it would be nice to ditch it for something with valves in. I have seen designs out there on the net mainly from the good olde usa.
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  #5  
Old 3rd January 2006, 05:31 PM
alexs2 alexs2 is offline
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Default Re: Active (valve) Crossover?

It's an interesting idea certainly,but my own experience with active crossovers(trimaped active Linn Keltiks,and also Meridian M3s) is that good designs are costly,and their applications are limited,plus there are very clear benefits in the tailoring of a crossover design to an individual speaker system,and whilst going active can produce immense benefits in terms of speed,control and power reserves,it's not an easy project.
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  #6  
Old 28th May 2006, 08:53 AM
Black Stuart Black Stuart is offline
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Cool Re: Active (valve) Crossover?

Alex2,
try visiting Rod Elliot's site ESP - active x/overs that work (and Rod has been using them for well over 20 years). Rod has a programme that you punch in the parameters of your speakers and it gives you the values of the components. His PCB costs around $20.

Oh I forgot to mention - you end up with a far better sound. As to more expensive - you've got that the wrong way round.

Black Stuart
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  #7  
Old 28th May 2006, 11:35 AM
Brian Brian is offline
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Default Re: Active (valve) Crossover?

Quote:
Originally Posted by KTea88
Great, would be a fine thing to build.
I currently run a Behringer active xover fed from a preII.
into a wad kat88 LF and kat84 HF driving Home brew TL's fitted with 6" Tannoy DC's with Tannoy super tweeters
it would be nice to ditch it for something with valves in. I have seen designs out there on the net mainly from the good olde usa.
Can you point me to a link that describes this active crossover you're using? Will this work for a 3 way speaker?

I'd also like to ask whether or not you've tried swapping over the amplifiers to see if the current configuration is the best or not?

Thanks

Brian
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  #8  
Old 30th May 2006, 09:23 AM
Black Stuart Black Stuart is offline
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Default Re: Active (valve) Crossover?

Brian,
Berhinger do a 3-way as well as a 2-way active x/over - it just costs more.

Black Stuart
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  #9  
Old 30th May 2006, 02:38 PM
Brian Brian is offline
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Default Re: Active (valve) Crossover?

Quote:
Originally Posted by Black Stuart
Brian,
Berhinger do a 3-way as well as a 2-way active x/over - it just costs more.

Black Stuart
I've scoured their website before I made my other post and can't find anything even about a 2-way crossover.

Probably can't see for looking.
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  #10  
Old 30th May 2006, 03:12 PM
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Darren D Darren D is offline
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Default Re: Active (valve) Crossover?

This is what I use, a good price too....

http://cgi.ebay.co.uk/BEHRINGER-Supe...QQcmdZViewItem
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