file FSP118LEVBPH - (Forward firing version of Staiper ES18BPH)

8 years 11 months ago #12079 by MAutopsy

bitzo wrote: :think: I guess it's a no.

Mautopsy, I'm sorry but I worked too much on this plan for share it, I want to be the first who build it. By the way there's a lot of kick cab on this site.


I completely understand smiley20

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8 years 11 months ago #12080 by levyte357

saul wrote:
this we know, but im not sure i follow...

low qes might be more sensitive, but high qes usually equals a nice smoother and rounder response would we not agree

even "real" efficiency is very high on la neeeoooo

18700N

FS Hz 38Hz
RE Ohms 5.2 O
Qms 5.273
Qes 0.325
Qts 0.306
Vas Ltr 217
Vd Litres 0.921
CMS (mm/N) 0.119
BL T/m 24.2


18XB

FS Hz 33 Hz
RE Ohms 6.5 Ω
Qms 5.77
Qes 0.358
Qts 0.337
Vas Ltr 236
Vd 0.803
CMS (mm/N) 0.13
BL T/m 25.9


We should continue this on the driver efficiency thread.

\"When in Vegas, do as the vegasians do\".

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8 years 11 months ago #12081 by saul
sorry yes, bit off topic here

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8 years 11 months ago #12094 by mykey-
EBP is fine Saul

it's like this..........if you're going to use the cabs as stand alone then I would go for a lower EBP, if you are using them as a dedicated kick cab then go for a higher EBP and take their heads off

all depends on what one you are after

looking at the 700n it's bang in the middle smiley20

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8 years 11 months ago #12096 by mykey-

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8 years 11 months ago #12097 by levyte357

mykey- wrote: 2 x


Excellent job there Mykey,

Would imagine if kick bins are being used, it's a minimum of 2x per stack.

Please say dims are 630x570x730'ish

\"When in Vegas, do as the vegasians do\".

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8 years 11 months ago #12098 by mykey-
636h x 574w x 736d

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8 years 11 months ago #12099 by saul

mykey- wrote:
looking at the 700n it's bang in the middle smiley20



4x plot looks alright to me, does 60hz with ease

ok so the BL is a tad low, but at least it'll sound nice! all down to budget i guess. smiley1

for reference, the "real" efficiency comes out at no 3.49 that's just under v18-1000

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8 years 11 months ago #12101 by levyte357

saul wrote:

mykey- wrote:
looking at the 700n it's bang in the middle smiley20



4x plot looks alright to me, does 60hz with ease

ok so the BL is a tad low, but at least it'll sound nice! all down to budget i guess. smiley1

for reference, the "real" efficiency comes out at no 3.49 that's just under v18-1000


EDIT:Higher Fs & decent Vas, gives "your" 700N good efficiency. ( Also better Qes & EBP than the XB smiley20 )

Would say BL<24 is low, BL=24-27 is Medium, BL>27 is high

Flatter, musical sound easier to obtain with med BL drivers.

However excursion eaten up rapidly below certain freq, due to higher BL needed to rein in driver movement at higher power if higher Vas.

\"When in Vegas, do as the vegasians do\".

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