comb filter
A straightforward question:
In theory, will the comb filtering in my speakers at high frequencies appear as varying SPL levels in the room due to local cancellation points, or will I most likely just notice it as a decreased high frequency response?
Thanks
A straightforward question:
In theory, will the comb filtering in my speakers at high frequencies appear as varying SPL levels in the room due to local cancellation points, or will I most likely just notice it as a decreased high frequency response?
Thanks
Hello polkymon,
I like your speaker DIY,
Can you send to me the constructions pics of your speakers
Thank you so much
mail: bui.nguyen.anh@gmail.com
I like your speaker DIY,
Can you send to me the constructions pics of your speakers
Thank you so much
mail: bui.nguyen.anh@gmail.com
polkymon said:
News!
The build has been on hold for a while, but now I just ordered parts for stage 2 and 3!
a Behringer DCX2496 and two 8" woofers. Meanwhile, the unfiltered full-range arrays have been quite nice to listen to.
The build has been on hold for a while, but now I just ordered parts for stage 2 and 3!
a Behringer DCX2496 and two 8" woofers. Meanwhile, the unfiltered full-range arrays have been quite nice to listen to.
stage ... 3?
If anyone still remember my line arry project, here's some news! The "bass feet" are finished and installed!
As you can see in the pictures, I still use a single dome tweeter, temporarily mounted in the top of the array (not the best placement, I know).
The sealed bass cabinets are made out of very heavy duty glass fibre/epoxy tubes and pine woodboards. The 8" MGR woofers (MGR F-2008W) face downwards.
The speakers are "tri-amped", and a dcx2496 is used for filtering and level adjustments.
Despite all their questionable design solutions, I must say I'm very very satisfied with their sound so far!
Next stage will be the tweeters. Either DIY magnetostatic ribbons, or arrays of dome tweeters. I haven't decided... 🙄
If anyone still remember my line arry project, here's some news! The "bass feet" are finished and installed!
As you can see in the pictures, I still use a single dome tweeter, temporarily mounted in the top of the array (not the best placement, I know).
The sealed bass cabinets are made out of very heavy duty glass fibre/epoxy tubes and pine woodboards. The 8" MGR woofers (MGR F-2008W) face downwards.
The speakers are "tri-amped", and a dcx2496 is used for filtering and level adjustments.
Despite all their questionable design solutions, I must say I'm very very satisfied with their sound so far!
Next stage will be the tweeters. Either DIY magnetostatic ribbons, or arrays of dome tweeters. I haven't decided... 🙄
Attachments
Tweeters!
One and a half hear later, I have taken another step in this project! 🙂
I was on my way with the magnetostatic ribbons, and even got the magnets, but yesterday I just couldn't help myself from buying a box of 200 tweeters from PE! :
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=269-810
I know this is a bit of a faulty choice, but stubborn as I am, I will still give it a try. These little tweeters have an FS of 4200 Hz which is too high for my 83mm C-C midwoofer spacing.
Any advice on how I should deal with this? What will be worse, running the tweeters down to below Fs or running the midwoofers up to over comb-filtering freqencies? (I will of course try both settings on the filter, but a theoretical discussion is always interesting)
One and a half hear later, I have taken another step in this project! 🙂
I was on my way with the magnetostatic ribbons, and even got the magnets, but yesterday I just couldn't help myself from buying a box of 200 tweeters from PE! :
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=269-810
I know this is a bit of a faulty choice, but stubborn as I am, I will still give it a try. These little tweeters have an FS of 4200 Hz which is too high for my 83mm C-C midwoofer spacing.
Any advice on how I should deal with this? What will be worse, running the tweeters down to below Fs or running the midwoofers up to over comb-filtering freqencies? (I will of course try both settings on the filter, but a theoretical discussion is always interesting)
200 tweeters at 10USD 
Not sure what to say about the 4khz Fs
But I would try to sort out how many really works, and try and find the best sounding
Sell the individually as super tweeters, 1USD ea 😉
And start building that linesource ribbon
Not sure what to say about the 4khz Fs
But I would try to sort out how many really works, and try and find the best sounding
Sell the individually as super tweeters, 1USD ea 😉
And start building that linesource ribbon
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What do you mean "how many really works" ?? Even if the price is embarassingly low, I still expect all 200 to be working! Don't you think so?
Eton 8-200/A8 Symphony, Morel MDM55 2" & Eton 26HD1/A8 Symphony
An externally hosted image should be here but it was not working when we last tested it.
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