Live sound specific Tapped Horn thread...

I have 2.3m long tapped horns with one 180 degree bend and a 90 degree for the driver and exit.
No reflectors.
Consensus was not needed at these frequencies.
No issues with sound, freq measurements etc.
Have build square ones with more folds since and no reflectors, same comments.
thanks bro,
what do you use for stuffing when you need to add damping.
 
thanks bro,
what do you use for stuffing when you need to add damping.
The only damping was in that small box section below the driver. I stuffed it with needled upholstery felt, probably doesn't do anything though.
Apart from that, no damping.
The long internal dividing panel is 1/3 / 2/3 braced it's entire length.
I used 18mm birch plywood for the construction.
21mm or 24mm would have cost a bomb (even back then) and made them even heavier than they are (~110kgs).

Porters trolley at the ready🙂

Subseqently removed the outer wrap around panels / damping bracing.
They looked nice but it added weight and needed to get them up into a loft room staircase.
it didn't affect the sound any.

They don't vibrate at hifi listening / outputs. Even when making the room / sofa shake🙂
 

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The only damping was in that small box section below the driver. I stuffed it with needled upholstery felt, probably doesn't do anything though.
Apart from that, no damping.
The long internal dividing panel is 1/3 / 2/3 braced it's entire length.
I used 18mm birch plywood for the construction.
21mm or 24mm would have cost a bomb (even back then) and made them even heavier than they are (~110kgs).

Porters trolley at the ready🙂

Subseqently removed the outer wrap around panels / damping bracing.
They looked nice but it added weight and needed to get them up into a loft room staircase.
it didn't affect the sound any.

They don't vibrate at hifi listening / outputs. Even when making the room / sofa shake🙂
Just admire it!! Super nice job!!
How long it take to finish it
I'm looking to make a sub ,still deciding what design.
 
Just admire it!! Super nice job!!
How long it take to finish it
I'm looking to make a sub ,still deciding what design.
Made them about 10 years ago.
In regular use since then.
I wouldn't be without them.
They integrate so well and under pin the music effortlessly. Just like a good bass player🙂

They took about a long weekend each to make.

I did the basic cutting to size at the timber place I bought the birch plywood from.
 
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what driver you are using and how much power are you feeding it
15" Eminence Kappa Pro LFII drivers.
They modelled in Hornresp very well and have never missed a beat😂

I use a large Cerwin Vega silicon amp.
Can't remember which one. Lots a Watts🙂
At 105dB/w they E not inefficient, but have to keep up the the other channels, 110dB/w mid bass, and 116 / 118 dB/w mid and upper mid compression drivers.
The Raal tweeters are 111dB/w.
I run the cooling fans on the Cerwin in series to halve their speed = quiet.
It's the high damping factor that's most important.
I feed it 18 - 90Hz on a steep X/O.
Either 6th or 8th order. Can't remember which.
I do need lots of cutting PEQ at room a mode of 30Hz.
Nicely tamed..
 
have you considered to switch your amps to class D topology
I did start with 2 stereo D class amps but they weren't beefy enough though, so not a fair representation of what other D class could perhaps do..

I have a Crown D class on the mid bass horns (12" Eminence Kappa drivers).
It drives them very well.

I have tried that amp on the tapped horns but prefer the Cerwin A/B class.