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2 ohms woofers is this the future for cabinets
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DJ123 View Drop Down
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Joined: 02 March 2010
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Points: 60 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DJ123 Quote  Post ReplyReply Direct Link To This Post Topic: 2 ohms woofers is this the future for cabinets
    Posted: 20 May 2017 at 11:41am

 B & C  PROFESSIONAL COMPONENTS

18iPal - 18" EXTREME POWER NEODYMIUM SUBWOOFER 

  • THE NEW B&C 18iPAL IS A LIGHTWEIGHT EXTREME POWER 18" SUBWOOFER THAT HANDLES A MASSIVE 1,700 WATTS AES STANDARD & 3,400 WATTS PROGRAM
  • FEATURES A LARGE 4.5" COPPER VOICE COIL, DOUBLE SILICONE SPIDER & A TRIPLE ROLL SURROUND
  • ALUMINUM DEMODULATION RING FOR VERY LOW DISTORTION & FLAT RESPONSE
  • SUPER HIGH EXCURSION OF 20.0MM FOR A SUPER CLEAN BASS SOUND THAT MOVES AIR
  • VENTED VOICE COIL GAP FOR REDUCED POWER COMPRESSION
  • THE B&C 18iPAL WOOFER IS OPTIMIZED FOR THE HIGHEST POWER, PERFORMANCE & QUALITY SUBWOOFER SYSTEMS
  • AVAILABLE IN 2 OHMS ONLY

THE B&C 18iPAL IS A LIGHTWEIGHT NEODYMIUM 18" SUBWOOFER THAT HAS A 20MM XMAX & HANDLES A MASSIVE 3,400 WATTS PROGRAM!

B&C 18iPALB&C 18iPAL

18iPAL

2 Ohms

Item Price: $999.95

SPEAKER MODEL

18iPAL

SPECIFICATIONS

Nominal Basket Diameter

18" / 460mm

Impedance

2 ohms 

RMS Power Rating

1,700 Watts

Program Power3,400 Watts

Frequency Response

32Hz - 1.0kHz

Sensitivity (1W/1m)

97dB

Voice Coil Diameter

4.5" / 116mm

Winding MaterialCopper
Former MaterialFiberglass
Winding Depth 1.7" / 44mm
Magnetic Gap Depth.47" / 12mm
Flux Density1.5T

MOUNTING INFORMATION

Overall Diameter18" / 460mm
Bolt Circle Diameter17.44" / 443mm
Baffle Cutout Diameter16.61" / 422mm
Depth10.28" / 261mm
Flange & Gasket Thickness.63" / 16mm
No. Of Mounting Holes8
Volume Displaced By Driver0.37 ft3  /  10.5 Liters
Net Weight36.6 lbs./ 16.6 kg.
Shipping Weight41.01 lbs./ 18.6 kg.

MATERIALS

BasketDie Cast Aluminum
ConeTreated Paper
Surround ShapeTriple Roll
Cone ShapeRadial
Voice CoilCopper
Pole DesignT-Pole
SpiderDouble Silicone
WaterproofingFront & Back
MagnetNeodymium

  THIELE-SMALL PARAMETERS

Resonant Frequency (fs)

32 Hz
Impedance (Re)1.3 ohms
Electrical Factor(Qes).14
Mechanical Q (Qms)4.2
Total Q (Qts) .14
Compliance Equiv. Vol. (Vas)164 Liters/5.8cu. ft.
Voice Coil Overhang (Xmax)20.0mm
Reference Efficiency3.3%
Diaphragm Mass (Mms)330 grams
BL Factor30.3 T-M
Surface Area of Cone (Sd)m20.1210m2
Coil Inductance (Le).65mH
EBP228
FREQUENCY RESPONSE
IMPEDANCE
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gen0me View Drop Down
Young Croc
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Joined: 20 February 2016
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Points: 999 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gen0me Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2017 at 3:35pm
Yeaaa, No. I saw once 21" ipal for 1k GBP. Could reach extra 1.5db in same size front loaded horn but in tradeoff of 2hz low. If you add that for 2 of thpse you get 3 another horns(which will extend low even more) its not that economic. Unless you are short on space.
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_djk_ View Drop Down
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Joined: 23 November 2004
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Points: 6002 		Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2017 at 10:38pm
Qts-0.14 ?

WTF are you going to do with that?
djk
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gen0me View Drop Down
Young Croc
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Joined: 20 February 2016
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Points: 999 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gen0me Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 12:45am
Beautiful qes isnt it
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Points: 10919 		Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 7:32am
Thee have been around and in use for about 8 years.
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spongebob View Drop Down
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Points: 1395 		Post Options Post Options   Thanks (0) Thanks(0)   Quote spongebob Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 10:10am
Are these not the badgers in the MLA companion sub?
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colint View Drop Down
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Points: 5227 		Post Options Post Options   Thanks (0) Thanks(0)   Quote colint Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 6:56pm
Originally posted by spongebob spongebob wrote:

Are these not the badgers in the MLA companion sub?

Yup but they were 21" and they were so good Martin stopped making them (oh and they were 1ohm)

Edit sorry my bad I confused the MLA with the ASX it's the ASX that uses the 21"


Edited by colint - 21 May 2017 at 7:46pm
Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!
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colint View Drop Down
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Points: 5227 		Post Options Post Options   Thanks (0) Thanks(0)   Quote colint Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 6:57pm
http://www.bcspeakers.com/products/lf-driver/21-0/1/21ipal

Edited by colint - 21 May 2017 at 7:49pm
Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!
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shagnasty View Drop Down
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Points: 7685 		Post Options Post Options   Thanks (0) Thanks(0)   Quote shagnasty Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 7:33pm
The theory is kinda sound as lower impendance more current, more motor strength on VC and you don't need a Powersoft K60 just to get 5Kw in 8r, you actually use the amp where the max stated power happens...

The issue is unless you are a touring company and run rack within a couple of meters (like 6') of stacks loosing more power in the cable than the VC is REAL Option, def one for a Plate Amp me things!!!

15m of 6mm even 4g6 paired to 12mm will not work well @ those numbers...
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colint View Drop Down
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Points: 5227 		Post Options Post Options   Thanks (0) Thanks(0)   Quote colint Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 7:48pm
There is an ipal module from powersoft
Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!
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MarjanM View Drop Down
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Points: 7816 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2017 at 7:56pm
I am yet to understand what is this driver advantage over a 18SW115.

Edited by MarjanM - 21 May 2017 at 7:57pm
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
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Elliot Thompson View Drop Down
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Joined: 02 April 2004
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Points: 5176 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2017 at 2:05am
Originally posted by _djk_ _djk_ wrote:

Qts-0.14 ?

WTF are you going to do with that?


Use it as an oversize Midrange Driver.


Best Regards,
Elliot Thompson
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