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jason str

Use of spray on sound deadening material on medium size horns

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Has anybody here used sound deadening materials on mid size horns before and if so does it help mellow the sound any ?

I just picked up a nice pair of black LaScalas from joesportster this friday and am very happy with the sound of these in my main system but notice the mids do sometimes have a general plastic horn noise coming from the mid, there is nothing wrong with the horn itself and i am just being picky here but like anybody would like options to please my ears.

There are horn upgrades available i know but would like to test this idea first before spending money i don't have available at the time.

It may just be my room acoustics but these sound fantastic compared to my Chorus 2's that i have been using for the past ~18 years or so, many here have said these lack very low frequency production but i am impressed with what i have heard so far.

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The metal horns ring, and improve with damping.

I think the plastic horns lack rigidity and simple damping schemes may not be enough.

On the EV HP series of fiberglass horns I have used 2" of expanding foam (rigid when cured) and they sounded much better. I had to massage a thin layer onto the horn surfaces first, then I applied (touching) rows of a 3/8" bead all over the back. When cured the foam was about 2" in most areas. Excess cured foam was removed using a steak knife. Wear gloves, use ventilation, etc.

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