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Beston RT002A Ribbon Tweeter

Brand:|Model: RT002A|Part # 277-112
Beston's RT002A features a laminated aluminum diaphragm, driven by a compact and lightweight neodymium magnet.
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Part # 277-112
  • Patented ribbon design exhibits superb articulation and effortless dynamics
  • 2,000 Hz – 40,000 Hz frequency response
  • Horn loaded for 92 dB sensitivity
  • Linear impedance simplifies filter design and amplifier requirements
  • Neodymium magnet structure for high flux and low weight
  • Ultra-thin laminated aluminum diaphragm

Product Details

Beston RT002A Ribbon Tweeter

A Beston RT002A tweeter's driven radiating surface mass is usefully low, and contributes to the transducer's superb range, efficiency, tonal neutrality, and transient response. The motor, diaphragm, and carefully controlled horn loading are skillfully integrated to create a perfect balance of sensitivity and wide, even dispersion. Great for MTM designs.

A ribbon tweeter's radiating surface approaches the theoretical ideal of a zero-mass audio source. The articulation, attack, and sonic transparency are quite impressive, and the diaphragm's monolithic shape and orientation provide a broad horizontal and tightly controlled dispersion characteristic, which is ideal for many listening environments. Beston's carefully sculpted waveguide faceplate further improves the tweeter's linear emission of smooth, extended high frequencies.

Achieve studio monitor-like audio precision with your next high-efficiency speaker project! A third order (18 dB/octave) or higher crossover is recommended to achieve maximum power handling. Minimum recommended crossover frequency: 2,500 Hz

Product Specifications
  • Tweeter TypeRibbon
  • Impedance6 ohms
  • Power Handling (RMS)40 Watts
  • Frequency Response2,000 to 40,000 Hz
  • Sensitivity92 dB 1W/1m
Thiele-Small Parameters
  • DC Resistance (Re)5.80 ohms
Mounting Information
  • Overall Outside Diameter4 x 4"
  • Cutout Diameter3.7 x 3.7 "
  • Depth1.32"
Beston RT002A Ribbon Tweeter
  • BrandBeston
  • ModelRT002A
  • Part Number277-112
  • UPC844632069819
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (24 Reviews)
  • Weight0.6 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.

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Beston RT002A Ribbon Tweeter
Beston RT002A Ribbon Tweeter is rated 4.5833 out of 5 by 24.
Rated 4 out of 5 by from Restored JBL 216s with theseI removed the woofer and tweeter from two old and heavy JBL 216s (ported) and put the Beston RT002A Ribbon Tweeters in along with the Dayton 7" aluminum cone woofers, DA175-8. The ribbons were 7dB more sensitive than the woofers and 6 Ohms instead of the woofers 8 so I put 5.2 Ohm resitors on them and used the existing 2nd order 4K crossover. They've been getting broken in for the past two hours and I must say I'm very pleased with both of these. It's my first experience with ribbon tweeters and I can see why folks like them. Very happy and will buy these again, when they go on sale. Matt Cero, Seattle, WA
Date published: 2013-03-04
Rated 3 out of 5 by from a little brightThis was my first ribbon. I used PEs suggested crossover design to go with my Tang Band 6-1/2 woofer. I found that these tweeters are harsh and a little disturbing to listen to for more than a little while. I 'll go back to soft dome tweeters. Just my opinion.
Date published: 2012-11-16
Rated 5 out of 5 by from Supprising horn ribbonI was a little worried when I got these that they wound perform near as good as I wanted them to or they wouldnt match with the Dayton Larger ribbon.Well I was wrong these tweeters are outstanding They are clear crisp and match the Larger Dayton model when used in conjunction with other speakers that are loaded with the Dayton. Im conciderign now usign this tweeter in my series of tower speakers that use horns as this has a waveguide flare but sounds a lot smoother then the horn we normally use. This is a well built solid tweeter and sounds as good as you expect ribbons to sound. I have no compaliants with its perfomrance as well as attractive looks. An over all winner!
Date published: 2012-09-25
Rated 4 out of 5 by from Be careful what you pair these with!I bought these after reading how they provide the "you are there" feeling of ambience, better than silk dome tweeters. The price way right, so I paired these with a 5" midbass in a .35ft^3 ported enclosure. I did make a mistake by going with too large of a speaker, so that's one reason they did not sound right.However, wouldn't use these tweeters with other drivers bigger than, say, 3". These tweeters hit the highest of the highs (and they do it well, at that). I made too large of a jump, and some songs are severely lacking in vocal range.I also had to add L-pads to the tweeters to tone them down. They're really bright, and I think they'd be better suited to a set of loudspeakers than bookshelf speakers.Overall, as long as you pair them with the right drivers, they're really great speakers.
Date published: 2012-09-07
Rated 5 out of 5 by from Another wonderful complement for an outboard supertweeter. I crossed these over with a simple first order 6.8mFd non-polar capacitor in parallel with the Dayton B652 speakers and once again we have sound that rivals the best I have heard. This tweeter has an output amplitude that matches the B652s without an L-pad (though of course I included one).This tweeter is an excellent product, and has very wide horizontal and vertical dispersion, due to its horn loaded design, and is therefore maybe an even better match for small bookshelf speakers than the HiVi tweeters I have used in the past. Definitely adds that 'you are there' ambience that ribbon tweeters are well known for, and at very low cost.This is another sealed back tweeter design, and therefore can be mounted on a very simple stand design--two pieces of wood. Velcro these to the tops of any pair of bookshelf speakers, and marvel at the sound qualiity!
Date published: 2012-06-07
Rated 5 out of 5 by from Best sounding car tweeter I've ever used.I have these tweeters mounted on my dash in an 01 Blazer.The horn loaded face plate made them a lot larger then the tweeter itself so I removed them.I mounted them to my pillars with the bottom sitting on the dash so they are perfectly vertical.I have them crossed over at 5k at 18db/oct and powering them with a Macintosh Mc425 that does 70 watts rms on the bench at 4 ohm so they are getting about 50 watts at their 6 ohm rating just as the power guard indicator lights up.These tweeters sound open and detailed even at full power.They do not SPIT at you like most domes and I listen to Ozzy at full volume sometimes.Madonna's Material Girl and Vogue makes them sing at ear ringing levels.And yes sometimes my ears ring afterwards for a few minutes.I was using JBL GTI's,Infinity,and Vifa's.I have been listening to these for about 6 months now.These are unbeatable at their price and well worth the install effort.
Date published: 2012-04-14
Rated 4 out of 5 by from center channel additionsTwo of these were added to my center channel of a home theater system. Instead of mounting them in/with the same enclosure of the existing mid-woofer, they were wired so they can be tested and mounted elsewhere, such as just above or below the tv screen. Regardless of location, these tweeters provide improved clarity and distinction inobtrusively. Details in voices become more apparent, and separation between channels appears greater.PROS: affordability, design (ribbon), performance, could be an inexpensive way to improve all channels to ribbon tweetersCONS: on the large size (for a small tweeter) but necessary for performance,
Date published: 2012-02-26
Rated 5 out of 5 by from Good replacement for EMITI have some Infinity Q4's that had burned up EMIT's, since I can no longer find these replacement elements I purchased the Beston ribbon tweeters. Performance of these are very good - as good as original EMIT's. Had to make some modifications to the cabinet to mount, but no big deal. Glad I found these as replacements!
Date published: 2012-02-16
Rated 5 out of 5 by from Solid PerformanceEdit previous post. I shouold have said "12db/octave". As Homer would say, "DOH!"
Date published: 2010-02-16
Rated 5 out of 5 by from Solid PerformanceIt is very smooth coming in on a 5K, 2 octave cross-over. It is not quite as bright as I expected, compared with some other tweeters I have, when higher frequency bells are ringing. However, compared to most tweeters in $600+ main speakers, this tweeter performs very well. I would consider purchasing this product again for any 90-92 db system.
Date published: 2010-02-16
Rated 4 out of 5 by from Better than I expectedI bought these to replace a couple of burned up EMIT tweeters in my Infinity Q5's. I simply removed the lens and made minor mods to the cabinet. I checked the crossover but needed no changes. The sound is at least as good as the original and possibly better. Very smooth, incredible clear highs that go up way outa range. Amazing 180 degree horizontal dispersion. Vertical is narrow, just keep at ear level. Highly recommended!!!
Date published: 2010-02-11
Rated 4 out of 5 by from Great Buy - Nice RibbonI was a little hesitant about buying this tweeter, as no frequency response plot was available. I took a chance, as the specs and description were what I was looking for. I needed an 8ohm, 90dB tweeter, and with a 2ohm resistor in series, it seems to work out perfectly. The response seems smooth and detailed and the face plate seems to give better dispersion than some ribbons. There's no harsh sounding peaks and overall I'm pleased with the performance.I'm crossing over at around 4.2K @ 6dB/octave, which also was a concern. So far so good - no problems. Hard to beat this tweeter for less than $40. Hard to beat it at all unless you spend big bucks. I used to use Emits in a biamp system with electrostatic bass/mids. I think these are better than the Emits.
Date published: 2009-12-27
Rated 5 out of 5 by from Needs some Tweaking but Worth the WorkMinor differences in padding make big difference in sound. Excellent planar, on par with B&G Neo3. Easy mounting, good to 2400 with higher order crossover. I like this running a little hotter than most domes. Would choose this over HiVi equivalent.
Date published: 2009-11-17
Rated 5 out of 5 by from Works as replacement for Infinity EMIT tweeterI bought this to replace my blown EMIT tweeter in one of my Infinity QA speakers. The crossover was the same and the specs looked to be very similar. It is a tad brighter than the original but has excellent dispersion and has really brought back the great stereo imaging that I love about these speakers. Works great at a good price.
Date published: 2009-08-19
Rated 5 out of 5 by from Great deal for the moneyMade a set of speakers for my PC using the Dayton bi-plate amp and a set of peerless 5-1/4 inch 4 ohm woofers, .38ft cab and these wonderful ribbons with some Solen 6.8uf caps inline and 2-1/8 inch ports out the back above the amp. I have 58 watts to the woofers and 18 watts to these and it really sounds nice. They are crossed at 3000hz. Very airy sounding and great sound stage. I'm using a Aric Audio single tube preamp for the controler. Makes your PC sound esoteric.
Date published: 2009-02-13
Rated 5 out of 5 by from Agreed. Great Product.I do wish it didn't have the vents (or appear to have vents) on the back. As a precaution, I put it in a separate small box inside the midrange of the MTM section (it's a wmtmw speaker) just in case.The 6 ohm impedence is a touch, well, I guess somebody sells a lot of 2 ohm resistors too :)
Date published: 2009-02-12
Rated 5 out of 5 by from Great valueI have two in a pair of DIY speakers. I cross them over around 13KHz to add some top end and they make the speakers come alive. There are better ribbon tweeters out there, but this one works just fine and is not too expensive.
Date published: 2009-01-16
Rated 4 out of 5 by from Very nice soundThese tweeters are responsive to highs that I do not think that I have ever heard before. I am happy to add these to my Magnepan speakers.
Date published: 2008-12-24
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Product Q&A

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Beston RT002A Ribbon Tweeter

i have a pair of legacy signature 1's will this ribbon driver be a direct replacement for them? if not what would? legacy do not carry these drivers for this model anymore.

Asked by: scoop
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-02-27

If I crossed it at 5 KHz instead of the recommended 2.5 KHz, will it have any effect on its power handling capacity? In other words, I'd like to use it as a super tweeter in a 100W RMS system but possibly crossed at 10 or 12 KHz - will it work? Thanks.

Asked by: Rajeev
This tweeter will handle its full power capacity regardless whether it is crossed at 2.5kHz or 5kHz. Yes it will work crossed even higher as a super tweeter.
Answered by: MattP
Date published: 2014-10-13

Dear sir, Beston RT002A Ribbon Tweeter, I want to make super tweeter. Pls tell me to make crosover aplication for Beston RT002A Ribbon Tweeter running above 30 khz (capacitor ?uf, inductor ?uf...) Thank you so much, NGUYEN THACH ANH KIET HCMC,VIETNAM

At that kind of frequency you will only need a cap, and the tweeter will most likely not make any kind of difference audibly to the system since most people cannot hear anything above about 17kHz. You will need a cap value of about 0.9 uF in order to cross this over at 30 kHz.
Answered by: MattP
Date published: 2014-10-10

I like the sound of ribbon hi freq drivers and I am interested in paring these with a 200w (rms)12" woofer and using it as a stage monitor.. How well would this driver handle live sound situations??

Asked by: Bfrcwc99
I would not recommend using this for an application like that. The sensitivity is not high enough and they can be very fragile.
Answered by: MattP
Date published: 2014-03-24

can any of your ribbon tweeters be use in a monitor for live music? any help will be app

Asked by: dpwest
Ribbons have been used in pro applications like this before so there is nothing wrong with it per se. As long as it is crossed over properly and used within its thermal limits you should be fine.
Answered by: MattP
Date published: 2014-03-17

Actual horizontal & vertical dispersion?

Does anyone know what the actual horizontal & vertical dispersion is on these? I know most ribbons are relatively wide horizontal and narrow vertical, but with the horn loading on these I would appreciate some more input.
Asked by: mfunderburk
Although these have a waveguide horn flare they still perfoem very much liek a planar ribbon tweeter. They do have more horozontal disspersion but the differance between the horozontal and vertical plane isnt that much noticable, they have a pretty good even converage pattern in both directions. They are not like a conventional horn that is very direcitonal at all. I think Bestron mainly did it for looks
Answered by: Emersive Audio Video
Date published: 2014-03-17

Off-axis response?

I'm contemplating using these in my car in the A-pillars. In order for them to fit, I'd have to aim them off-axis somewhat due to the 4"X4" horn. Does anyone know how well these perform off-axis & to what degree?
Asked by: fish323
They have great off-axis response. I would say the sound quality is still great near 180 degrees off axis, and the stereo imaging is still pretty good.
Answered by: JRucks
Date published: 2012-09-07

can this be used in an 8 ohm set up? if so. how? and im wanting to add these to my fullrange setup,do i need a high pass crossover? thanks in advance.

Asked by: toller
Answered by: digitalhaven 53
Date published: 2014-03-17

Is the backplate removable for using in an open baffle?

Asked by: Jeff K.
Answered by: digitalhaven 53
Date published: 2012-02-28


does it matter if i surface mount these onto my cabinet or is it best to flush mount it like i did with my mid-woofer?
Asked by: jalng63
These were designed with surface mount in mind, as evidenced by the aesthetic roundover on the front edges.
Answered by: ThaiBoxing101
Date published: 2014-03-17

connector sizes

what sized female crimp connectors fit on the + and -
Asked by: jalng63
The negative terminal will take a 0.110" connector, 0.205" for the positive.
Answered by: RussR
Date published: 2013-12-21


If I wanted to build a 2 way using these and the tang band 6 1/2 W6-789E. What ready made crossover would work best or do I just need a high-pass filter? I'd appreciate any input.
Asked by: jalng63
"Best" is a matter of opinion, so I can't really say what would sound "best" to you, specifically. The Beston ribbon's recommended crossover point is 2500Hz, so I would recommend a 2-way crossover at that point or higher. I've linked a few such prefabricated crossovers below for your convenience. If you do a high pass only, then you're going to end up with a lot of overlapping frequencies, due to the Tang Band's response potentially extending up to 10kHz.
Answered by: RussR
Date published: 2014-03-17

if I wanted to build a two way speaker, would this or the compression tweeters attached to a horn give better sound?

Asked by: jalng63
First you have to define "better sound". I believe what you are asking is about a wave guide not a horn. The most recent research seems to indicate how detrimental early reflections are to sound quality. It is inevitable that horns will have early internal reflections due to the boundaries of the horn itself. A wave guide is a better way to go. The new Seas Dtx tweeter is a waveguide with a patented shape. By carefully causing difraction at set distances they are able to achieve constant directivity. The is similar to what Emerald Physics does with its wave guide. As far as a Bestron ribbon. I don't recomend it. The only ribbons I have heard that I like are the Raal and the Raven. These are very expensive. Check the output and distortion of a ribbon if you crossover anywhere under 4 k the ribbon runs out of excursion very quickly and the distortion goes up. If money were my concern I'd go with the Seas Dtx at $50. You won't be disappointed and can crossover as low as 2k with a 4 order crossover. If you can afford more and want great sound look at the Ess or Aurum Cantus aerostriction units. Sorry you get what you pay for. Good luck Ralph
Answered by: hifiralph
Date published: 2014-03-17

Can i use these ribbon tweeters for a car audio system?

I presently have 2 Pioneer bullet tweeters (no crossover). If I can substitute these ribbon tweeters, what is the recommended product to crossover?Thanks,
Asked by: dlautner
There is no reason you couldn't use these successfully in a mobile audio application. Just keep in mind that the impedance is 6 ohms on this ribbon, and calculate your crossover accordingly. I've referenced a prefabricated model below that would do the job, all things considered. Since the tweeter in question is 6 ohms, the 8 ohm crossover design would effectively cross it about half an octave higher, around 4.5kHz or so.
Answered by: RussR
Date published: 2014-03-17
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