Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer

Brand:|Model: AC-165
The AC-165 utilizes an extremely stiff cone made of carbon fiber and Kevlar for the maximum clarity and detail. A high compliance design allows this woofer to produce clean bass in mid-sized enclosures.
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List Price$119.99
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Part # 296-410
  • Non-woven carbon fiber/kevlar sandwich cone
  • Rigid cone offers quick transient response
  • High compliance design for clean excursion

Product Details

Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer

Aurum Cantus midwoofers feature high-performance cone materials, long-excursion designs, and high quality construction. The AC-165 utilizes an extremely stiff cone made of carbon fiber and Kevlar for the maximum clarity and detail. A high compliance design allows this woofer to produce clean bass in mid-sized enclosures.

Product Specifications
  • Nominal Diameter6-1/2"
  • Power Handling (RMS)60 Watts
  • Power Handling (max)90 Watts
  • Impedance8 ohms
  • Frequency Response32 to 8,000 Hz
  • Sensitivity89 dB 1W/1m
  • Voice Coil Diameter1"
Thiele-Small Parameters
  • Resonant Frequency (Fs)32 Hz
  • DC Resistance (Re)7 ohms
  • Voice Coil Inductance (Le)0.35 mH
  • Mechanical Q (Qms)3.38
  • Electromagnetic Q (Qes)0.41
  • Total Q (Qts)0.37
  • Compliance Equivalent Volume (Vas)2.68 ft.³
  • Mechanical Compliance of Suspension (Cms)3.03 mm/N
  • BL Product (BL)5.3 Tm
  • Diaphragm Mass Inc. Airload (Mms)9.6g
  • Maximum Linear Excursion (Xmax)5 mm
  • Surface Area of Cone (Sd)133 cm²
Materials of Construction
  • Cone MaterialCarbon Fiber / Kevlar
  • Voice Coil Wire MaterialCCA
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter6.42"
  • Baffle Cutout Diameter5.875"
  • Depth2.875"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.3 ft.³
  • Sealed F385 Hz
  • Vented Volume0.7 ft.³
  • Vented F353 Hz
Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer
  • BrandAurum Cantus
  • ModelAC-165
  • Part Number296-410
  • UPC844632003295
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight3.36 lbs.
  • California Prop 65

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

View similar products to the Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer
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Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer
Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from great replacement speakersI just ordered these speakers to replace the woofers I had blown twice in the emotive XRM 6.1 speakers . the speakers that came out were very similar to these , ie high quality , but for some reason they would not last . these are irregular shaped speakers , and I didn't think I would be able to find a replacement speakers that would just drop in and fit . but these did , even the screw mounting holes were an exact match . are there any differences between the two ? there is no doubt the bass and mid range is better , in fact I can hardly believe it , because the original speakers were quite spectacular for their size . I am glad I found these and would recommend them . I would like to have a speaker with a row of these .
Date published: 2014-09-19
Rated 5 out of 5 by from very solid productFirst, thanks again to PARTS EXPRESS for their dedicated and excellent customer service. And fast and accurate shipping of course.I got this woofer crossed over at aprox., 3300 hz (2nd order)in a passive crossover, along with a MOREL MDS-29 tweeter. I added it's respective zobel network to the woofer, and the "remains" of high frequencies were gone. Very precise and well constructed woofer, and, very dinamic !!, i'm really starting to enjoy music right now.
Date published: 2009-03-06
Rated 5 out of 5 by from excellent driver!I have some diy speakers and I replaced my drivers "Vifa P17WJ-00 6-1/2" to these "Aurum Cantus AC-165 6-1/2".The only thing I can say is: WOW....what a big improvement!.the bass is tight and strong,the mid-range is clear and detail. I strongly recommend these drivers.
Date published: 2008-09-05
Rated 5 out of 5 by from Really nice woofers - tight, deep, heavy bass.Bought these as they are a good fit to replace some flimsy woofers on a pair of floorstanding mission speakers - made an absolute world of difference. Really tight, much heavier bass, quality mids. Plan to replace the remaining 4 with these excellent cones. Small for 6.5s though.
Date published: 2008-06-30
Rated 5 out of 5 by from great speakersThis was the first pair of Aurum Cantus speakers that I have ever bought. I knew they made outstanding tweeters, but did not know they made drivers as well. I use my AC-165 6-1/2" Carbon Fiber/Kevlar Woofer in a small vented enclosure with a 1" tweeter. The speakers have good imagery and the bass response was quite substantial. Impressed to say the least.
Date published: 2007-09-03
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Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email  for a prompt reply.
Aurum Cantus AC-165 6-1/2" Carbon Fiber/Kevlar Woofer

Would this be a good speaker to pair with an usher 9950-20 to put in a powered bookshelf? Thinking of doing a set with the Dayton Audio MCWA60 amp. Any any suggestions on cabinet dimensions and crossovers would be greatly appreciated

Asked by: jstramm
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-05-01

what is the diameter from hole to hole?

Asked by: GeorgeB
The mounting holes are on a 168.5mm (6.63") circle.
Answered by: MattP
Date published: 2014-11-12

Doe's this fit for Infinity floor standing replacement parts for ref 2000.5 ?

Asked by: nynick
Unfortunately we have no reference guide as to what will fit certain speakers. You will have to compare the dimensions of this driver as listed in the product details online with the dimensions of the driver and cutout you are trying to replace.
Answered by: MattP
Date published: 2014-01-30


I planning to use Aurum Cantus G2Si Ribbon Tweeter
Asked by: PeterF
The highest recommended crossover frequency for the G2Si tweeter is 2,500 Hz so you cannot go any lower than this. The woofer will start to beam around 2,700 Hz, so an ideal crossover point would be between these two frequencies.
Answered by: MattP
Date published: 2014-07-10


What crossover can you recommend, for 2 way system with this woofer?
Asked by: PeterF
There are many options that will work, we would need to know which tweeter is being used before we can help with a crossover.
Answered by: MattP
Date published: 2013-09-06

What is the width across the flats?

Asked by: fpitas
The diameter across the flats is considered the "Overall diameter" in our description, and is 6-3/8". Across the outside of the mounting holes, the greatest diameter, will measure approximately 6-15/16".
Answered by: RussR
Date published: 2012-04-24
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