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B&C 15BG100 15" Neodymium Subwoofer

Brand:| Model: 15BG100
Overview
B&C's 15BG100 15" subwoofer features a strong yet light neodymium motor and is engineered to perform well in direct radiator or horn loaded speaker applications.
Highlights
  • High BL factor and generous Xmax deliver massive bass
  • Rubber half-roll surround for unrestricted, linear cone travel
  • Lightweight but powerful neodymium magnet
  • Ventilated voice coil gap reduces power compression
  • Aluminum demodulation ring minimizes distortion
  • Double silicone spider with optimized compliance
  • 2,000 watt continuous program power
Part # 
294-698
Weight: 19.8 lbs.  
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Product Details

B&C 15BG100 15" Neodymium Subwoofer

B&C's 15BG100 15" subwoofer features a high strength/lightweight neodymium motor and is recommended for direct radiator or horn loaded applications. It will also perform superbly when used as the woofer in high-output 2-way speaker systems. Good power handling and Xmax capabilities thanks to a well-ventilated neodymium motor, 4" diameter 1" long voice coil, and carefully optimized suspension.



Product Specifications
  • Nominal Diameter15"
  • Power Handling (RMS)1000 Watts
  • Power Handling (max)2000 Watts
  • Impedance8 ohms
  • Frequency Response35 to 1,000 Hz
  • Sensitivity94.5 dB 1W/1m
  • Voice Coil Diameter4"
Thiele-Small Parameters
  • Resonant Frequency (Fs)36 Hz
  • DC Resistance (Re)5.1 ohms
  • Voice Coil Inductance (Le)1.6 mH
  • Mechanical Q (Qms)5
  • Electromagnetic Q (Qes)0.49
  • Total Q (Qts)0.44
  • Compliance Equivalent Volume (Vas)2.93 ft.³
  • BL Product (BL)23 Tm
  • Diaphragm Mass Inc. Airload (Mms)240g
  • Maximum Linear Excursion (Xmax)10.5 mm
  • Surface Area of Cone (Sd)855 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerFiberglass
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter15.5"
  • Baffle Cutout Diameter13.9"
  • Depth7.44"
  • Bolt Circle Diameter14.7"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume1.27 ft.³
  • Sealed F364 Hz
  • Vented Volume3.36 ft.³
  • Vented F333 Hz
B&C 15BG100 15" Neodymium Subwoofer
  • BrandB&C Speakers
  • Model15BG100
  • Part Number294-698
  • UPC844632086250
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight19.8 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

B&C 15BG100 15" Neodymium Subwoofer
B&C 15BG100 15" Neodymium Subwoofer is rated 5.0 out of 5 by 3.
Rated 5 out of 5 by from Is There anything these guys make that isn't greatThe purchase of these drivers was precipitated by the loss of my splendid JBL 2235H subwoofers, to a rogue voltage spike. Whilst I knew that I could get the 2235s re-coned, many companies use parts that, while declared to be “equal or superior to original equipment in performance”, will quite often change the sound of a driver noticeably. Rather than have a questionable pair of re-done 2235s (note; we’re not talking about replacing just the surrounds, which are no big deal, and replaced often on those drivers, but rather, damage so violent as to launch the voice coil out of its gap, rip the spider, the surrounds, and the VC leads, and finally launching the cones out of the baskets, and across my living room. Yes, we’re talking about all new moving components). I decided to do an exhaustive search for a new set of drivers for my subwoofersThe closest thing on the screen to the 2235s were, in fact, the 15BG100s, but I just happened to have a pair of Dayton Hi-fi 15” aluminum cone drivers sitting in my closet, from an old subwoofer project, attracting micro-meteoroids. Given the box size involved, the hi-fi 15s looked like they would be right at home, with a significant re-tuning of Fb, in the same boxes I ran the 2235s, so I gave them a try.I was pleasantly surprised to discover that the Dayton 15s had the exact same bolt circle as the 2235s, as I was using blind nuts in the boxes, with machine screws holding the drivers in, and this made them a true “drop in” swap. When I put power to the hi-fi 15s, I ended up with a mixed visceral reaction; the drivers played MEGA deep, with 20 hz presenting no problem for them at all. However, they were nowhere near as efficient as the 2235s, so I had to increase the gain on my electronic crossover significantly, to get my Carver 760X to push the drivers to the same volume as the JBLs were operating at. Not a problem, but the final number ended up being significant – about 6 dB more push on the Hi-fis, than the 2235s. Next, came the real issue, for me, at least; the midbass was being handled by a pair of 7” Focal 7K4211DBL Kevlar drivers on each side. The JBLs, for some reason, had a response curve that allowed for an easy, gentle transition from the deep bass, to the midbass, allowing for excellent definition in the midbass, and a timbre that was very natural, especially on acoustic instruments, and the human voice. For some reason, despite a lot of attempted tweaking on the crossovers, equalizers, and individual gain controls on the amps, I could get the system to sound “ok” at best, but not like it did with the JBLs. Enter the B&C 15BG100With the B&C, I once again found myself with a perfect drop-in for a JBL bolt circle. The screw holes on the B&C are actually short radial slots, so that the driver can be dropped into a variety of cabinets that mount it via machine screws, within a range of a +/- .25” radius.To my great delight, the instant I put power to the 15BG100, I realized I had a winner; even without a break-in, the driver sounded musical, deep, and powerful. I suspect that this unit will need several hours at a good, decent signal, at low frequency, to get the spider and rubber surround “exercised” throughout most of the range of its allowable motion, and therefore loosened up to its published specs. I can tell that Fs is very much on the high side, as the stiff suspension is offering a stronger than normal restoring force to the motion imparted by the motor system. As the spider loosens up, Fs will drop, Vas will increase, and Qms will come down, as well, until equilibrium is reached at about the factory specs. As far as the power was concerned, I was able to back the output of my crossover back down to exactly where it was with the JBLs, perhaps even a little less, as I’m sensing that, as my program predicted, the 15BG100 is about 3-4 dB more sensitive in the infra-bass region, below 40 hz, in the 5.5 cubic foot box, than the JBLs were. The most delightful discovery, however, was the well-defined mid-bass exhibited by the 15BG100 , and the smooth, natural, effortless transition to the Focals that this driver is capable of. As a caveat, I am fully aware that this behavior will change somewhat as the Fs drops, and the response curve re-shapes itself, however, with the suspension offering slightly LESS resistance to motion, I can’t help but predict that transients might actually improve somewhat, and the well-behaved tonal nature of this driver’s midbass will remain excellent, if not improve slightly. Low end grunt is excellent, with a rare combination of both punch, and “drop”, with each note played on a stand-up bass carrying equal weight, and presence, without any of them standing out, or “booming” out above the rest of the scale.So far, I am tickled pink with this driver; it is my third B&C, and I am becoming thoroughly convinced that whoever it is at B&C that is in charge of which products to make, and how to design them, is an absolute genius.I will post a follow-up when the driver is fully broken in.
Date published: 2014-03-10
Rated 5 out of 5 by from Excellent WooferI have used this woofer to anchor a large 3 way system for my main speakers.They are in about 138 liters vented with Fb around 21. This produces a bit of a shallow rolloff starting around 40 hz. They have solid in room response to below 20 hz this way.They do an incredible job. Obviously they will play way more loudly than I could need in my living room. With just 70 watts from my AVR they will kick you in the gut with bass drums, rattle the whole place with movies and overall manhandle you. What is more impressive though is how well they do when refinement is called for. Playing classical music with double bass or acoustic jazz with upright bass it is amazing the coherence, subtlety and definition these instruments get using these woofers.They aren't cheap, but if you need a woofer with good sensitivity, very high output and low distortion then these are for you. Really an awesome product.http://techtalk.parts-express.com/showthread.php?236783-Active-3-way-pro-sound-drivers
Date published: 2014-01-19
Rated 5 out of 5 by from WowI bought this speaker and installed it in a pre-fab 2 cu ft knock down sub box made for the Dayton Audio Titanic off DIYsoundgroup.com. I put it next to a the Dayton Audio Ultimax 12''; the B&C sub made the Dayton almost inaudible. Awesome sub, I have a whole bunch of B&C speakers and simply think they can't be beat.
Date published: 2013-12-02

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B&C 15BG100 15" Neodymium Subwoofer

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