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Multi-Way Conventional loudspeakers with crossovers

Open Source "Tower XL"
Open Source "Tower XL"
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Old 26th September 2018, 03:18 PM   #61
LORDSANSUI is online now LORDSANSUI  Brazil
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Consulting this database with indicated targes the options are:

BMS 15N620
BMS 15N630
Beyma 15LX60V2 (the lowest VAS=106L)
Celestion TF1530SL
D.A.S. Audio 15GNR
Eminence KAPPA-15LFA
FaitalPRO 15FH520
LaVoce NBASS15-30

Link for the search results
Loudspeaker Database
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Old 26th September 2018, 04:30 PM   #62
Aatto is offline Aatto  United States
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Open Source "Tower XL"
Quote:
Originally Posted by Brett View Post
I gave you 3 options, not one. I use the 15S and X and have useful sealed Qts in much smaller boxes, circa 45Hz / 140L and 60Hz / 60L IIRC.

89dB is in boring domestic box territory.
you see, i was never good at paying attention at school you know

TD15X and TD15H both looks very good. TD15X has better efficiency and both can be tuned really low.

we may go a little over the budget ( well, more than a little ) specially if we go with TD6M as midrange, but we may have to do it.

I vote for TD15X lets see what others think.
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Old 26th September 2018, 04:35 PM   #63
Aatto is offline Aatto  United States
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Open Source "Tower XL"
Quote:
Originally Posted by KaffiMann View Post
It's mostly under 200$ here.

2 x 4ohm in series is OK, but then you should make a separate volume for each, not a big problem, will make the bracing job easier.
Quote:
Originally Posted by KaffiMann View Post
Regarding 4ohm 12" drivers, the Eminence Delta Pro 12-450-4 might work, but it is not optimal... The hunt continues...

Edit:
Beyma 12WR400 looks nice.
yeah both drivers have high FS .

what do you think of AE TD15X that Brett mentioned. I did a quick and dirty sim, and it looks promising, can be done in a 100-130 liter box, not sure if we can hit 92db but we should be close enough and we may need to settle down since it's been going on for a while. it would be over the budget but probably worth it, it's AE, it's for life time .

EDIT: this is from AE website: "The TDX uses a 4 layer flat wire aluminum coil. The BL is slightly higher and mass is slightly lower. They are typically used in vented enclosures where more efficiency is desired." it's 96db. not bad
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Last edited by Aatto; 26th September 2018 at 04:39 PM.
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Old 26th September 2018, 04:37 PM   #64
Aatto is offline Aatto  United States
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Open Source "Tower XL"
Quote:
Originally Posted by ILikeFoodz View Post
I thought this might be a helpful resource for the driver search. I think some of the drivers here might not be available anymore, but still should help.

Loudspeaker Database
thanks man

Quote:
Originally Posted by LORDSANSUI View Post
Consulting this database with indicated targes the options are:

BMS 15N620
BMS 15N630
Beyma 15LX60V2 (the lowest VAS=106L)
Celestion TF1530SL
D.A.S. Audio 15GNR
Eminence KAPPA-15LFA
FaitalPRO 15FH520
LaVoce NBASS15-30

Link for the search results
Loudspeaker Database
BMS 15N630 looks good, not sure of the availability tho. that Eminence KAPPA-15LFA I think have been discussed before and this is the closest we can get to what we are looking for ( if i m not mistakin it for another eminence driver )
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Old 26th September 2018, 05:03 PM   #65
Paul Vancluysen is offline Paul Vancluysen  Belgium
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Quote:
Originally Posted by Aatto View Post
yeah both drivers have high FS .

what do you think of AE TD15X that Brett mentioned. I did a quick and dirty sim, and it looks promising, can be done in a 100-130 liter box, not sure if we can hit 92db but we should be close enough and we may need to settle down since it's been going on for a while.
it would be over the budget but probably worth it, it's AE, it's for life time .
Very good driver that one, but I think it is better to increase cabinet volume to about 170 L (??...)
With 130 L the F3 is higher than 40 Hz looking to first simulation.
VB = 170 L tuned at 31 Hz, F3 = 37Hz and F6 = 31 Hz.
Sensitivity full space wil be 90.3 dB. The mentioned 2.83Vrms values on the AE site are correct.
AE TD15X has a maximum excursion of 14 mm peak!
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Old 26th September 2018, 05:17 PM   #66
Aatto is offline Aatto  United States
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looks good
how about TD15H ? slightly less sensitivity but will need smaller cabinet.
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Old 26th September 2018, 05:42 PM   #67
KaffiMann is offline KaffiMann  Norway
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Open Source "Tower XL"
The problem is not finding a good 15", there are many that will suffice.

The problem is finding smaller drivers that are suitable for the goals specified.
I think it will be easier to use 4 x 8" than 2 x 12".
Imo it does not complicate the build significantly to have 2 separate volumes inside the box. There will be less bracing needed.
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Old 26th September 2018, 06:27 PM   #68
Aatto is offline Aatto  United States
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Open Source "Tower XL"
ok, so i misunderstood you before, IMO 4x8" will have better audience as well.
this look good:
Beyma 8WOOFER/P V2

these will probably do as well:

SB Acoustics SB23NRXS45-8

Scanspeak 22W/8534G00
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Old 26th September 2018, 07:53 PM   #69
Audio Elite is offline Audio Elite  South Africa
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Try this one, its awesome and its also used in the Augspurger Duo 8 monitors.
I have used it in a potent 2 way with the faital HF10AK and sounds really good.
BEYMA 8P300Fe/N
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Old 26th September 2018, 11:12 PM   #70
LORDSANSUI is online now LORDSANSUI  Brazil
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The last option for 15" I found is the Precision-Device PDN15BR40

Sensitivity: 97dB SPL
Fs: 39,22 Hz
Re: 5,13 ohms
Qms: 10,77
Qes: 0,39
Qts: 0,38
Vas: 140,14 L
Sd: 829,58 cm
Xmax: 10,5 mm
Le: 0,89 mH
Bl: 19,14 T/m
No: 2,74%
Mms: 112,89 g
Pe: 700 W

Probably sensitivity at the limit and cost out of target

PDN.15BR40
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