Buyout Special

1/2" Mylar Dome Shielded Tweeter 8 Ohm

Brand:| Model: 1-2TW-SD85
Save up to 65% off the original, discounted retail price on this 1/2" Mylar dome shielded tweeter through this Parts Express exclusive factory buyout. A bypassable 2.2 ohm padding resistor is included.
  • Low mass Mylar dome extends response
  • Phase correction faceplate also protects diaphragm
  • Includes bypassable 2.2Ω, 5 watt padding resistor
  • Magnetically shielded ceramic motor
  • 1/2" diameter dome for superior off-axis response
Part # 
Weight: 0.2000 lbs.  
Regular Price$3.00
You Save67%
Special Price
Part # 279-002
Qty:  EA
Available Payment Methods

Product Details

1/2" Mylar Dome Shielded Tweeter 8 Ohm

This shielded tweeter is perfect for replacing tweeters in many classic speakers. The 1/2" diameter Mylar dome diaphragm offers superior off-axis response and is protected by the built-in phase correction on the faceplate. For greater power handling, and 1 dB of padding, a bypassable 2.2Ω, 5 watt resistor is included.

Save up to 65% off the original discounted retail price through this Parts Express exclusive factory buyout. Act fast, quantities are limited!

Product Specifications
  • Tweeter TypePoly / Mylar Dome
  • Cone / Dome Diameter1/2"
  • Impedance8 ohms
  • Power Handling (RMS)30 Watts
  • Frequency Response6,000 to 20,000 Hz
  • Sensitivity88 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)3,500 Hz
  • DC Resistance (Re)8.27 ohms
Mounting Information
  • Overall Outside Diameter2.88"
  • Cutout Diameter1.88"
  • Depth1.25"
1/2" Mylar Dome Shielded Tweeter 8 Ohm
  • BrandFactory Buyouts
  • Model1-2TW-SD85
  • Part Number279-002
  • UPC848864012698
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (9 Reviews)
  • Weight0.2000 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.

Similar Products

View similar products to the 1/2" Mylar Dome Shielded Tweeter 8 Ohm
in the Tweeters product category.


1/2" Mylar Dome Shielded Tweeter 8 Ohm
1/2" Mylar Dome Shielded Tweeter 8 Ohm is rated 4.3333 out of 5 by 9.
Rated 5 out of 5 by from Sounded goodBought 2 of these and used 4.7 mf capacitors and 2 292-405 woofers for an old set of Jensen bookshelf speakers that were my Dad's. Although the cabinets were twice the size of the sealed box recommended size for the woofers they still sounded pretty good.
Date published: 2014-06-17
Rated 4 out of 5 by from Great for old PSB AlphasDropped these into some old PSB Alphas for the garage. Sound great.
Date published: 2014-06-01
Rated 4 out of 5 by from Replaced tweeters in Bose 201 Series IIIThese Speakers definitely did the job at less than $2 each. Just note.... the small lead is the negative, I used the far positive across the magnet and not the close one bypassing the use of the resistor. Be careful and use minimal time in soldering the connections as they will QUICKLY melt at the speaker connection point. If this happens, you may have to reset the mount with your solder iron quickly heating it up and melting the plastic and having the speaker powered up to make sure a new position connection is made. It happened to both my speaker. I also had to re-drill three new holes. Other than that, the speakers sound perfect in my Bose and look great too. Great replacements that made my Bose come alive again!
Date published: 2014-04-18
Rated 5 out of 5 by from Great tweeters for the priceI bought 4 of these to use in my old truck, They are excellent tweeters for the price, and were a huge upgrade over my old coaxial set-up. I'm using electrolytic caps as 1st order crossovers set at 4225 Hz. Everything between 4200 and 900 Hz is covered by 2 5.25" drivers and 4 4" drivers. Everything between 850 and 80 Hz is covered by an 8" woofer. everything below 100 Hz is covered by a 12" subwoofer. I'm no audiophile and I don't compete, but this setup sounds better than anything I've heard. I also spent less on this setup than what I sold my coaxial speakers for, you just can't beat the prices on parts-express, especially if you find a buyout.
Date published: 2014-03-25
Rated 4 out of 5 by from Will reorder this product if it's still available.Can't beat the product for the price. Be a little careful if you are using a high power solder iron, as the plastic will melt if the iron is on the solder point's too long. A good economy tweeter.
Date published: 2014-03-21
Rated 5 out of 5 by from Sweet sounding tweeters!Don't let the low price offered on these tweeters fool you. I purchased a pair to replace blown Sony tweeters. They are sounding as good, if not better, than the originals.
Date published: 2014-03-04

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.
1/2" Mylar Dome Shielded Tweeter 8 Ohm

hi will this fit a Yamaha N 6490 bookshelf speaker?

Asked by: SMF63
Unfortunately we do not have a cross reference guide for speaker sizes. You will have to verify the dimensions with the cutout the enclosure has to see if it will fit. As long as the impedance matches the original is will work without any crossover mods.
Answered by: MattP
Date published: 2014-06-20

Is this 8 ohm with the resistor in series?

Asked by: j_doggggggggggg
The DCR is 8.27 with the resistor in series, this can still be classified as an 8 ohm load.
Answered by: MattP
Date published: 2014-05-12

do these tweeter come with a high pass  filter on them? this is in the specifications  (with 6,000 Hz 12 dB/octave crossover)

Asked by: JoeNY
No these do not include a high pass filter.
Answered by: MattP
Date published: 2014-04-14

where can i find or get a complete specifications sheet on these tweeters..

Asked by: Billy0578
Unfortunately this unit is a buyout item so the information we have online is all that is available.
Answered by: MattP
Date published: 2014-03-29

I am trying to replace a tweeter that looks exactly like this but it is 6 ohm with something better. There is only 4" between the other two speakers. Any suggestions?

Asked by: BrettM63
We have many tweeters that are smaller than 4" that could possibly work. While I cannot give you a specific part number, I would recommend a dome style tweeter as a replacement since they are generally regarded as a nicer sounding tweeter than mylar. All dimensions are listed for cutout and faceplate diameters, so find something within your price range that will physically fit in the space you have available.
Answered by: MattP
Date published: 2014-03-29

Do these have a sealed back or open design ?

Asked by: wildchild55
These are sealed back.
Answered by: MattP
Date published: 2014-03-29

Customer Projects

Customer projects that include: 1/2" Mylar Dome Shielded Tweeter 8 Ohm

If you built a project using this product, post it in the Parts Express Project Gallery.

Customer Discussions

If you would like to start a discussion about this product, post a thread in the TechTalk Customer Forum.

Recently Viewed Products

Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH45066USA

© 1996-2014 Parts Express, All Rights Reserved