Macca's Lash Up 2: Lash Harder

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Originally Posted by Ali Tait

I have a new design in mind which coincidentally will use 30mm acrylic as the baffle.

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Do it!:)

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Originally Posted by brian2957

I was at that Nebo Martin , and Gordons system was indeed a bit special . Probably cost a lot of money though , and a lot of time to out together .

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Actually for the performance level the cost was peanuts in relative terms. Although he did build the speakers himself, which would be beyond me.

This bloke has done similar for just a couple of hundred quid, although he did write his own software, that only saves the price of the DSP unit, (a few hundred): https://therationalaudiophile.wordpr...m/the-project/

:D will do when I get the time. Need to find a CNC place locally that can cut with a water jet. Don't want to do the driver cutouts by hand, would look too messy.

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Originally Posted by Macca

Actually for the performance level the cost was peanuts in relative terms. Although he did build the speakers himself, which would be beyond me.

This bloke has done similar for just a couple of hundred quid, although he did write his own software, that only saves the price of the DSP unit, (a few hundred): https://therationalaudiophile.wordpr...m/the-project/

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The miniDSP unit I use is only 500 dollars Martin.

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Originally Posted by Ali Tait

The miniDSP unit I use is only 500 dollars Martin.

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Indeed. It will be next year's project for me. If I can get it working well with the IMFs will then look at building some custom speakers for it. They will be a three way with 18'' bass drivers and about the size of a JBL 4365. Sealed box, though, not open baffle.

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Originally Posted by Macca

My copy arrived yesterday so I stuck it on eager to see how close I have got to the reference.

And the answer is... not very close. It does sound good, impressive even, but it is still short in terms of clarity, and as for the holographic imaging, where you can 'see' the venue and the performers, forget about it. Not there at all. I mean obviously there is a stereo soundstage, but it is not even close to holographic. Damn. Back to the drawing board.

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You want Jeff Beck in the room?
Sell the hifi and buy a guitar :D

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Originally Posted by Ali Tait

:D will do when I get the time. Need to find a CNC place locally that can cut with a water jet. Don't want to do the driver cutouts by hand, would look too messy.

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Biggish sign company may have one. Company i once worked for did.

Aye good shout, will have a nose around.

Had Peter (Petrat) round here this morning, he brought me a geetar (which I might show you tomorrow if you are all good).

Anyway long story short he had a bit of a listen to it, (which is probably slumming it a bit for him given what he uses himself); He reckoned the ported bass is the weak point ( 'a bit soft and fuzzy)', and that the lack of holographic imaging could be down to the lack of bass below 40 HZ (the port being tuned quite high, meaning bass rolls off fast after 40 Hz) and that a proper sub that will do 20 Hz would help retrieve the ambient cues lurking in the deep bass.

He makes a very valid point I think. It doesn't actually matter if there are musical frequencies down there on the recording, it still affects the illusion of reality.

I have all the bits to build such a thing lying about, might think about it.

Tune the port to a lower system resonance. Make it narrower or longer. It can be done as a reversible measure.