R evenge C omes with F orce

[jbell]

i got 2 models here
the one on the left has a bigger chamber shorter hornpath.
i like to here the experts on pro's /con's for these 2 models.
the width is 4' wich would be 121.92 cm correct?
hight 70 cm ,depth 87.5 cm.

left:

any time I've built a TH with a nasty dip -- I've not liked it. Remember one of the benefits of a TH is a 'little bit' of the 2nd harmonic distortion that our ears really 'want' to hear at PA levels. It's why I like the TH sound over a FLH sound. The nasty midbass dip makes notes sound different that have their 2nd harmonic in that band.

 

[olsound]

Jbell you're saying the one on the left is better

 

[olsound]

Jricci you just build a tapped horn which one you think is better

Thanks

 

[epa]

tnx jbell.
my thinking was ,the dip is past the bandpass say 100 hz,
the peaks of the left design would maybe stil be audible,crossing 100 hz 4th order?

grtz erik

 

[olsound]

So the left one is it than

 

[Josh Ricci]

Jricci you just build a tapped horn which one you think is better

Thanks

Which one what do I think is better? Better for what? All designs and enclosure types have compromises involved.


BTW I agree with JBell though for slightly different reasons. I do not like to have huge nulls right above the expected crossover point or even quite a ways above it really. It can make things difficult to blend with the other speakers.

 

[olsound]

trying to play with the big boys

what do you guys think of this.

 

[jbell]

Here's a good visual on why I don't like TH's with a big null just above the passband.

This is the ss15 with a 40hz SINE WAVE...

You really have to think musical instrument when designing one of these.

 

[Djim]

Here's a good visual on why I don't like TH's with a big null just above the passband. This is the ss15 with a 40hz SINE WAVE... You really have to think musical instrument when designing one of these.

Have you done a similar sinewave tests with freq >50Hz (Fb)?

 

[epa]

Here's a good visual on why I don't like TH's with a big null just above the passband.

This is the ss15 with a 40hz SINE WAVE...

You really have to think musical instrument when designing one of these.

i understand what you saying.
we should be going for the left one(peaks are never that severe in real live)
just like the groep delay and impulse better from the right one(i know its just pictures)

 

[epa]

what do you guys think of this.


View attachment 225463

View attachment 225464

that looks a bit like my first sim.and sketch.
that wil be >800ltrs.
you wil need much more wood because the size's being not economical.
i like the sim ,nice straight line

 

[epa]

this is same size 65 high(60.7 internal)

import !

 

[olsound]

that looks a bit like my first sim.and sketch.
that wil be >800ltrs.
you wil need much more wood because the size's being not economical.
i like the sim ,nice straight line

Too big for real .I will leave the playing for the experts.

 

[olsound]

this is same size 65 high(60.7 internal)

import !

epa i down your file to horn response ,what a difference in size for al much the same db. both size are one to two db apart. (epa)527ltre to my herina 613 litre sim

 

[epa]

maybe the chamber .
hr gives you an aproximation. in real live you won't hear much difference between the 2(if any)
here is another brainfart,not as low as the other 3 but more efficient.
same size box,but smaller chamber and longer horn end
you want from 35hz straight?with 1 or 4

 

[olsound]

i will be building 4 cabs but it would be great to one cab playing from 35hz straight for when one cab is wanted

 

[bjorno]

...i will be building 4 cabs but it would be great to one cab playing from 35hz straight for when one cab is wanted..

Is this for commercial rental purposes? Is it for PA/Live reinforcement or pure instrumental use?

b

 

[olsound]

Is this for rental purposes? Is it for PA/Live reinforcement or pure instrumental use?

b

Pa/live reinforcement use . Jamaican style

 

[epa]

so this one is verry close to your likings
htthttp://www.diyaudio.com/forums/subwoofers/189551-r-evenge-c-omes-f-orce-6.html#post2593171p://

 

[bjorno]

so this one is verry close to your likings
htthttp://www.diyaudio.com/forums/subwoofers/189551-r-evenge-c-omes-f-orce-6.html#post2593171p://

Hi Epa,

Nice,Looks very good IMO,better than olsound3 that was far better than olsound2 and promise good SQ as well.

b