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Old 10th January 2013, 08:39 PM   #1
panduro is offline panduro  Denmark
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Default pro driver sound with only 15 watts?

just looking for a bit of experience from those who knows

thinking of making a vented subwoofer 90L, fane 15xb driver(tuned to 27hz) to pair it with a couple of satelittes, xover at 80hz with minidsp and a 25W 4ohm tripath poweramp to power the sub.

modelling it in winisd gives me a good response(with cabin gain) and with a bit of boundery gain it should provide me with the wanted target spl. (which is only 100db as it is a system for a bedroom).
music= jazz and rock mostly.

I know power is cheap, but i'd like to do it the low power way if possible.

will a tripath ta2020 poweramp that wattage be able to make it sound well or do i need more power?

best regards

panduro

Last edited by panduro; 10th January 2013 at 08:53 PM.
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Old 10th January 2013, 09:50 PM   #2
OscarS is offline OscarS  United States
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I've always been a fan of Fane. My pops still has four Colussus from '91 and they are still all original and still pound the lows.

Have you considered a horn of some sort to boost the on-axis sensitivity of the 15xb? Are you familiar with horn modeling software like HornResponse or Akabak?
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Old 10th January 2013, 10:09 PM   #3
panduro is offline panduro  Denmark
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Hi oscar and thanks for your reply.

I like fane as Well, im running 12" fane cresendo guitar drivers as a midbass driver and 1" jbl compression drivers in my ht doing lr duty.
I know its a guitar driver, but done as a "satelite" speaker crossed at 1200hz it sounds very nice and dynamic as hell.

No expirience With horn moddeling.

Horns for bass freq are quite large arent they?

Mest regards

Panduro
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Old 11th January 2013, 12:17 AM   #4
JMFahey is offline JMFahey  Argentina
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I think 15W will be fine, considering it's a bedroom and you can't go very loud anyway.
Why complicate matters with a horn, doubly so because you don't have a lot of space, is beyond me.
If you want more SPL , upgrade amplification to 50W, 150W or 500W, the Sky is the limit.
Watts are cheap anyway.
That said, 15W in a bedroom is fine.
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Old 11th January 2013, 12:48 AM   #5
OscarS is offline OscarS  United States
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Oops....didn't see where it said it was gonna be a bedroom

The xb should have a sensitivity of around ~94 db/1w/1m, so 15W should get it up to around 105 dB. A standard ported alignment should suffice.
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Old 11th January 2013, 02:55 AM   #6
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Sadly Fane COLOSSUS 15XB doesn't go low (extension) with/than ~40Hz@-12dB with any alignment.
panduro,
I love the Fanes, but after saying that, who told you to pick that woofer? Maybe for a (PA) rock concert is just fine.
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Old 11th January 2013, 03:27 AM   #7
OscarS is offline OscarS  United States
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Quote:
Originally Posted by Inductor View Post
Sadly Fane COLOSSUS 15XB doesn't go low (extension) with/than ~40Hz@-12dB with any alignment.
panduro,
I love the Fanes, but after saying that, who told you to pick that woofer? Maybe for a (PA) rock concert is just fine.
You sure about that, chief?

Click the image to open in full size.

169L, Fb=34Hz. Using T/S parameters from: http://www.fane-international.com/do...15XB_Specs.pdf


I'd say that goes plenty enough for jazz/rock.
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Old 11th January 2013, 04:33 AM   #8
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OscarS, thanks. I notice some parameters are different in the database (not made by me and maybe an old driver v.). So I will check again with the new T/S.
Edit: Anyway I looked at the PREDICTED BASS RESPONSE on your link and what I said it's not far-fetched.
Quote:
thinking of making a vented subwoofer 90L, fane 15xb driver(tuned to 27hz)
Attached Images
File Type: jpg COLOSSUS 15XB.jpg (27.9 KB, 217 views)

Last edited by Inductor; 11th January 2013 at 04:48 AM.
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Old 11th January 2013, 04:58 AM   #9
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As a way of checking I simulated the 2 alignments for the same driver.
1. FANE COLOSSUS 15XB v.2012, VB = 86.6 L, FB = 35.2 Hz, 92.2 dB2.83Vm. F3=52Hz F6=39Hz F12=28Hz
2. FANE COLOSSUS 15XB v.2012, VB = 169.0 L, FB = 34.0 Hz, 92.2 dB2.83Vm. F3=36Hz F6=31Hz F12=25Hz
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Old 11th January 2013, 05:06 AM   #10
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Quote:
Originally Posted by OscarS View Post
You sure about that, chief?
OscarS, please next time you work a simulation check the displacement of the cone. How much do you have for max displacement? (169L) (Theres something wrong with mine)

Last edited by Inductor; 11th January 2013 at 05:09 AM.
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