Hi all,
I've obtained two Alcone BX10 sub drivers, T&S parameters as below:
BX 10
25 cm top class bass driver with coated paper cone, twin magnet, rubber surround, ventilated magnet system and sheet steel basket.
output (continuous/programme): 150/300 Watt
impedance: 4 Ohm
resonance frequency fs: 30 Hz
DC resistance Rdc: 3.5 Ohm
mechanical Q factor : 6.76
electrical Q factor Qes: 0.36
total Q factor Qts: 0.34
equivalent volume of compliance Vas: 50.07 L
voice coil inductance at 1 kHz: 3.12 mH
effective mechanical mass incl. air load Mms: 91.3 g
mechanical compliance Cms: 0.30 mm/N
effective piston radiating area Sd: 365 cm2
electromagnetic force factor BI: 13.11 N/A
sensitivity (2.83V /1m/1kHz): 87 dB
voice coil height: 23.5 mm
voice coil layers: 4
outside diameter: 258 mms
cut-out required: 229 mm
mounting depth: 133 mm
countersunk depth: 11 mm
cone diameter: 169 mm
mounting holes: 8x5 mm on 250 mm diameter circle
My question is, putting these into WinISD seem to suggest using a vented enclosure. If I use one of these in a sealed enclosure of, say, 30-35l, is it going to produce decent results, primarily for music? I.e. fast, fairly deep and transient-free bass?
I originally was told these drivers would be Peerless XLS10s (which will work nicely in an 18L sealed enclosure) but never mind!
More spec here:
http://www.alcone.nl/BX10.pdf
Thanks!
I've obtained two Alcone BX10 sub drivers, T&S parameters as below:
BX 10
25 cm top class bass driver with coated paper cone, twin magnet, rubber surround, ventilated magnet system and sheet steel basket.
output (continuous/programme): 150/300 Watt
impedance: 4 Ohm
resonance frequency fs: 30 Hz
DC resistance Rdc: 3.5 Ohm
mechanical Q factor : 6.76
electrical Q factor Qes: 0.36
total Q factor Qts: 0.34
equivalent volume of compliance Vas: 50.07 L
voice coil inductance at 1 kHz: 3.12 mH
effective mechanical mass incl. air load Mms: 91.3 g
mechanical compliance Cms: 0.30 mm/N
effective piston radiating area Sd: 365 cm2
electromagnetic force factor BI: 13.11 N/A
sensitivity (2.83V /1m/1kHz): 87 dB
voice coil height: 23.5 mm
voice coil layers: 4
outside diameter: 258 mms
cut-out required: 229 mm
mounting depth: 133 mm
countersunk depth: 11 mm
cone diameter: 169 mm
mounting holes: 8x5 mm on 250 mm diameter circle
My question is, putting these into WinISD seem to suggest using a vented enclosure. If I use one of these in a sealed enclosure of, say, 30-35l, is it going to produce decent results, primarily for music? I.e. fast, fairly deep and transient-free bass?
I originally was told these drivers would be Peerless XLS10s (which will work nicely in an 18L sealed enclosure) but never mind!
More spec here:
http://www.alcone.nl/BX10.pdf
Thanks!
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For sealed, I'd like Fs to be lower, 25Hz or less, so I can get decent bass without much equalization. This driver is better ported.
Hi,
The driver can be used sealed or ported. It is suited to a 1cuft vented
box or a 0.5cuft sealed and stuffed box, both very compact for a
10" driver. Yellow and green are the standard alignments. I've
also shown a a compact and slighltly larger vented alignments.
28L detuned to 30Hz also looks pretty good to me.
Low tuned vented IMO gives you fast and deep bass, you can
see that the 35L tuned to 28Hz slaughters the 15L sealed
box for low bass extension and will for maximum output.
For sealed one would usually use 15L to 25L per driver.
30 to 35L sealed will give near critically damped bass,
so I can't say that won't work, it will, and very well.
rgds, sreten.
The driver can be used sealed or ported. It is suited to a 1cuft vented
box or a 0.5cuft sealed and stuffed box, both very compact for a
10" driver. Yellow and green are the standard alignments. I've
also shown a a compact and slighltly larger vented alignments.
28L detuned to 30Hz also looks pretty good to me.
Low tuned vented IMO gives you fast and deep bass, you can
see that the 35L tuned to 28Hz slaughters the 15L sealed
box for low bass extension and will for maximum output.
For sealed one would usually use 15L to 25L per driver.
30 to 35L sealed will give near critically damped bass,
so I can't say that won't work, it will, and very well.
rgds, sreten.
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Hi Sreten,
That's what I wanted to hear! 🙂 I'm planning on building a 35L sealed enclosure - WinISD reckons 35x35x39cm 🙂
Reckon that'll give pleasing results then?!
That's what I wanted to hear! 🙂 I'm planning on building a 35L sealed enclosure - WinISD reckons 35x35x39cm 🙂
Reckon that'll give pleasing results then?!
It will sound good, but bass will be lacking below 50Hz (in room). It almost needs a separate subwoofer. For low playing sealed, I like at least 12" drivers with low Fs.
I like Streten's green or magenta tunings best. Most bass in music is higher where group delay is lower, so it will sound fine and give you decent bass from that driver.
I find even with sealed alignments low bass can sound slow in rooms because of the standing waves in the room.
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