NVX XSPTW 29mm X-Series Soft Dome Tweeters - Sonic Electronix


29mm X-Series Soft Dome Tweeters

• 260W Max • 130W RMS • 29mm X-Series Car Tweeters • Silk Dome Tweeter Construction • 4 ohms Impedance • Robust Tweeter Chamber • Ring Radiator Design • Improved Clarity and Fidelity

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This item has been discontinued


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The Tweeter

NVX had a unique goal when designing the X-Series tweeter – to engineer a tweeter with exceptional clarity and sonic characteristics, while optimizing the off-axis response for ideal imaging. The resulting tweeter has several key design features which help achieve the phenomenal sound:

  • 29mm Silk Dimpled Dome
    • Silk provides warm, crystal-clear sound
    • Unique dimple improves dispersion for improved off-axis response
    • Wide diameter offers improved clarity and output at high volumes

  • Ring Radiator
    • Improves clarity and fidelity of high-frequency sounds
    • Prevents decoupling at high frequencies

  • Robust Tweeter Chamber
    • Provides even compression throughout the full range of excursion
    • Improves linear movement and promotes more defined treble
    • Lowers resonant frequency for improved imaging

General Features:

  • 29mm X-Series Car Tweeters
  • Power Handling:
    • Peak: 260 watts per pair / 130 watts each
    • RMS: 130 watts per pair / 65 watts each
  • Silk Dome tweeter construction offers crisply detailed highs with warm characteristic
  • Dimpled tweeter dome improves the dispersion pattern for improved response
  • 4 ohms impedance
  • High-temperature voice coil
  • Robust Tweeter Chamber helps lower the resonant frequency, greatly improving imaging
  • Ring Radiator design prevents the surround from decoupling at higher frequencies
  • Improved clarity and fidelity at higher notes reduced strain on the surround
  • Surface and Flush Mountable
  • Sensitivity: 94dB
  • Top-mount depth: 1"
  • Frequency response: 800-22,000 Hz
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Pair

Tweeter Specifications
Priced Per
Tweeter Size
Tweeter Design
Tweeter Composition
Flush Mount
Surface Mount
Angled Mount
Peak Power Handling
260 watts
RMS Power Handling
130 watts
94 dB
Frequency Response
800 - 22000 Hz
Impedance (Per Voice Coil)
4 ohms
Top-Mount Depth
Hi-Res Certified
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider




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Overall rating distribution

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1 star

By feature average rating



February 9, 2015

Excellent low-reaching tweeters

Keep in mind this tweeter isn't accommodating to just any installation. It's a rather large tweeter. That said, it's an excellent tweeter. Tremendous value. Belts it out solidly and cleanly in a 2-way, and can crossover low enough to work with mids in a front 2-way with ease. Been extremely pleased with them. Clean, smooth and after some playing time they seem to be even better. I have them on-axis in custom pods in an 8th gen Civic sedan. I have the levels pulled back on the DSP as they can easily overpower being on-axis. I'm crossing these anywhere between 2k-2.5k , currently around 2300hz. I imagine from the specs they could reach lower but work well as I have them. Like all NVX gear I've worked with thus far, these are outstanding.


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March 18, 2014

Great Tweeters!

These tweeters are awesome, they are very loud and clean! At fist they might sound bright, but once you tune your system they really sound great!

P.S, these tweeters are big to work with!


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March 16, 2014


Huge upgrade to the Polk Audio Tweeters these replaced. Very natural and smooth sound. Little hard to install unless making a custom setup.


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October 16, 2013

Great Tweeters!

I was planning on getting some tweets that list for $580. Then someone convinced me to try these. I replaced my Rockford Fosgate T5 tweeters with these, and the improvement is awesome!

Details galore, not to bright and a very natural sound, They seem well built, and look great.The best tweeters that I've owned. They pair up great with the RF T5's woofers which is the best woofer i've owned.

They are BIG, and i had to get creative to install them.
Also they don't seem to lock into their pod/cup to easily.


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November 3, 2014

Can't beat them for the price...

These tweets lived up to all the hype. I really don't have a thing bad to say about them as far as their sound quality. Although, they did take a couple weeks to develop the all around smoothness they have now. The first day I did consider them just a tad harsh, but that was just the pre-break in time period. Other than that, just the size of these gargantuan tweets. Hard to find a suitable location for a stealth install. am about to purchase the 6.5" door speakers and make this house a happy home!


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September 16, 2014

awsome tweeters great price

these simply sound sweet. no long review you want tweeters you can play loud all day without tired ears or a headache for this price point buy these and a good amp and set up properly and (enjoy)


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July 4, 2015

The cat's MEOW..

As some may already know these tweeters are based on the highly praised SB Acoustics driver and no SQ was lost in the translation..
The first thing you will notice about these tweeters is the weight, they're heavy and the second thing you will notice is the sound, they're incredible and totally transformed my sound stage, these tweeters will pull clear down to 800Hz but you'll enjoy crossing them at 1500Hz, this will raise the sound stage and put the bass on your dashboard, where it belongs..
Trust me you want these tweeters, stop waiting and buy them..


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Freddy Krueger

May 2, 2015

NVX Tweeters AMAZING !!

I installed a set of these in the rear of my car and I was just blown away by volume , clarity , and the overall enhancement of my audio listening pleasure . They play loud and do not have ANY distortion . I have all NVX speakers in my set up except I have a Pioneer 12 inch sub . I do believe they are very under rated on their power handling because my amp pushes 150 watts RMS per channel and the speakers ratings are only 50-65 watts RMS and I get high quality distortion free sound at high volume . The NVX tweeters have 800 - 22000HZ output rating so they also pick up quite a bit of your midrange frequencies ( that is why I purchased these ) The vocals are SO much more clear along with lead guitar and drum instruments . You can spend $500.00 on a set of tweeters and will not get ANY more quality sound then these NVX XSPTW models . If I could only fit another sub in my little Fiat 500 , I would be a strong contender in a audio competition because of these tweeters !! I strongly recommend this product matched up with a set of NVX XNET2 crossovers . That's only my opinion , I could be right !! Thank you again Sonic for your superior product and service .


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September 7, 2015

Well made, slightly misrepresented freq. responce

These tweeters are fairly well made and sound great. However ...
The website states a crossover point of 1900hz.. Tried that, then I moved up to 2100, tried that, ended up at 2500hz crossover and they play fine. Otherwise, they start to play distorted or hazy. Considering that my other vehicle with morel mt23 tweeters plays great to 1800hz I was familiar with early distortion at too low of a crossover point. There is no manual with the NVX tweeters so all the info comes off the website, at least I didn't get one. Didn't really need one.
I like the NVX tweeters, so far they are working well..
These are large tweeters in an even larger housing, keep that in mind when locating them.


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July 8, 2016

Awesome and big

I've had these for 6 mo and at first they are scratchy during the first 10 hours of break in then mellow out real nice. Loudest and clearest tweets I have ever heard.if you are looking for angled surface mounts arc audio has some that fit their black line that work very good I used a set myself. Let these break in before you judge them.


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March 31, 2017

Nice tweeter

I have had these tweeters for a while now, so I can give an honest review. I had them hooked up to the deck power at first and they sounded awful. I decided to get a small amp to see if that helped and it made a world of difference. They are not nearly as harsh and bright now, actually pretty mellow and smooth. The tweeters are very revealing, I'm hearing much more detail than my previous tweets, and they can get pretty loud also. Mine are running active crossed at 2.5khz at 24db slope. You need a pretty big spot to mount them as the physical dimensions are much bigger than the average tweeter, but for around $100, I doubt you could find anything better.


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Page Fletcher

February 20, 2016

Excellent tweeter

I bought these tweeters to replace jbl ms 62c tweeters. The NVX X tweeters sound just as if not more detailed than the jbl tweets. The huge size of these tweeters means you can't flush mount them in your sail panels. I just surfaced mounted them and used the provided mount which is not that great. The tweeter size allows you to play your music very loud without losing the sql, unlike the jbl tweets which were excellent at low to mid level volumes. If you have an active crossover, I have mine highpassed at 2K with a 12db slope.I highly recommend these tweeters if you don't want to shell out hundreds of bucks for the fancy brands such as HAT/FOCAL but you still want comparable SQL.


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October 5, 2015


Sound great honestly, design is horrible, the pods/baffle they come with are horrible, tweets dont even stay in the pods with no cablees attached, you cant get tweets in the pod with cables on, the tweeters should come with wiring if not just pre attached cables already, they trim rings are bad as well, but they sound great. PAIN TO MOUNT THO.... DESIGN IS TRASH


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October 7, 2016


I have the actual sb29 Neo tweeters in my doors which these are with a metal grill added. They are very flat in frequency response with only a few minor dips at 7k and above. The harmonic and IM distortion levels are extremely low and they can be crossed over about as low as you want. They are easy to hit a LR4 around 1500-1700 with passive components if you want to go that route. I am using Dsp crossovers LR4 or LR8 @ 1600hz but I may go down to 1500 after I take some in car measurements. They are extremely sensitive at 94db/w and even crossed over low you only need 20-25w if using active XO. They sound great as is and I still haven't fine tuned the frequency response in car with the Dsp unit . Any reviews mentioning break in are mistaken as there is no such thing in a tweeter. Even in a woofer the only thing that changes is the resonant frequency drops when the spider stretches out which happens very quickly a few hours at most running at Xmas would do the trick. I am using these with a set of 7"peerless hds exclusive woofers and they blend very well. These can be crossed over low enough to avoid some off the off axis lobeing issues due to driver spacing and some time alignment take care of the rest. Overall I couldn't be happier.


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October 27, 2016

Great Sound

Exactly what I needed to replace the factory "satellite" Third Row speakers in my 2007 Ford Expedition. Took the bezels/shrouds off the speakers and retrofitted them into the factory bezels. Added a little bit of silicone to keep them in place. it's a night and day different. Hits the high and mids very well. A little bit pricey but the quality is there.


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