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  • Tectonic Elements TEBM65C20F-8 3-1/2" BMR Full-Range Speaker 8 Ohm
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Tectonic Elements TEBM65C20F-8 3-1/2" BMR Full-Range Speaker 8 Ohm

4 customer reviews

Price: $12.39 + $5.95 shipping
In Stock.
Ships from and sold by Parts Express.
  • Amazing off-axis frequency response
  • Small form factor with decent Xmax
  • Perfect for modern speaker applications such as soundbars
$12.39 + $5.95 shipping In Stock. Ships from and sold by Parts Express.

Frequently Bought Together

Tectonic Elements TEBM65C20F-8 3-1/2" BMR Full-Range Speaker 8 Ohm + Lepai LP-168HA 2.1 2 x 40-Watt Amplifier and 1x68W Sub Output
Price for both: $46.00

These items are shipped from and sold by different sellers.

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Technical Details

  • Brand Name: Tectonic Elements

Product Description

For audio applications that require extended frequency response, and superior off-axis response in a small form factor, choose the Tectonic Elements TEBM65C20F-8 3-1/2" full-range transducer. Nearly all of the audio in the pass band of the driver is available up to 100° off-axis.

Product Details

  • Item Weight: 1.6 pounds
  • Shipping Weight: 1.6 pounds (View shipping rates and policies)
  • ASIN: B009S291H4
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (4 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: October 17, 2012

Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

5 of 5 people found the following review helpful By Amazon Customer on February 15, 2014
Verified Purchase
ME : I have been building and repairing audio systems as a hobby for about 18 Years. I have done home , car and even some small stage systems...

I ordered 4 of these little 3" drivers to play around with. They are well built, good stiff baskets, strong honeycomb type plate cones, nice rubber surrounds.

Note that the suspension is quite tight to start with and needs to loosen up before they will perform properly. either through playing them or mechanically moving them to their limits a few times...

After they are "broken in" their average T/S are as follows:
Fs - 84.7
Qms - 4.35
Qes - 1.23
Qts - 0.958
Vas - 0.043 (cubic foot)
Re - 7.24 (Ohms)
Le - 0.120 mH @ 10KHz
Sensitivity - 80dB @ 1W1M
Pe - 20W
Pmax - 40W

I put 2 drivers into a 14" x 5.5" x 5.5" box (made from 1/4" MDF, with 1/2" MDF bracing) with a 0.5" x 4" slot port 6.6" long, stuffed with fiberglass.
they play very nicely, there is a bit of a peak at 120Hz of about 4dB... they play from 51Hz @ -3dB to 18KHz @ -3dB and from 210Hz-18KHz they are remarkably flat in response. the dispersion is Very wide and smooth.
i used two of these boxes running @ 15W RMS Ea. to play music out of my screen room to cover the back yard, they sounded like i was running a much larger set of speakers and fully covered the yard ( 220' x 100').
don't expect Massive SPL, or super Bass, but overall they perform quite well.

I would buy these again for small bookshelf speakers or a center chanel
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By Steveo on December 3, 2013
Verified Purchase
Great little speaker, Ive been building since 13 years old. For the size amazing clarity and acuracy. Works good in .1 cu ft sealed box.
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Verified Purchase
These are great! I love the way they sound.Good bass if you use more than one per cabinet.Good treble without being harsh as we'll.Sound good hooked up to a lepai2020.Wire two in paralell per channel to achieve 4 ohms and enjoy the great sound.
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2 of 6 people found the following review helpful By Chris on January 12, 2013
Verified Purchase
The product works and sounds great. The reason I am giving this a three star review is because the product was advertised as new, but when I recieved the product it had Solder marks that were obviously hand done after market. Other than that these speakers are great.
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