RST Aluminum Ribbon Super Tweeter

Get ready to elevate your audio experience with the RST Aluminum Ribbon Super Tweeter! This incredible speaker takes your sound system to new heights, delivering dazzling high-frequency sounds that most speakers simply can't match.

Imagine hearing every single detail of your favorite tracks with crystal clarity, creating a breathtaking, immersive soundscape that wraps around you! With this tweeter, your music will come alive like never before, making every listening session an exhilarating adventure!

 This APERION Super Tweeter features a true ribbon design, which uses a 20 μm thick (0.02mm) aluminum ribbon strip.

Game-Changer for Improving Sound Quality

The clarity of this speaker brings a sense of lightness and heightening to the overall mix without any harsh or distorted traits. The impedance of the aluminum ribbon tweeter is almost constant, so it maintains a consistent frequency response curve in the higher frequency band range up to 40 kHz.

True ribbon tweeter designs are able to handle a higher SPL than planar magnetic Super Tweeters. Naturally with the true ribbon design, an electrical current can’t directly touch the ribbon so we employed a transformer that reaches up to 60 kHz, which requires two pieces of exceptionally strong neodymium 2-1/8” (55mm) by 3/8” (10mm) magnets to produce the linear magnetic field. The entire magnetic array, ribbon, and damping materials are enclosed in a heavy-duty steel chamber.

The RST Aluminum ribbon super-tweeters boast excellent physical characteristics, including a wide frequency response, high sensitivity, low distortion, and superior transient response. They not only faithfully reproduce waveforms for simple harmonic signals but also respond rapidly to complex musical signals—particularly percussive and plucked-string instruments rich in transient characteristics. Furthermore, they deliver rich, lively, airy delicate, and smooth overtones, along with superior horizontal directivity.

They serve as a unique enhancement for Hi-Fi systems that suffer from dull timbre, poor high-frequency extension, or insufficient output in the high frequency range, as well as for home theater systems characterized by a dark overall soundstage and weak high-frequency impact.

Overall, this ribbon tweeter design allows for minimal distortion compared to the Planar Magnetic Super Tweeter, and, along with the ribbon's longitudinal shape, the true aluminum ribbon super tweeter creates a delicate and spacious sound field.

Pre-Purchase Information

1. Super tweeters are designed to work alongside your existing speakers; do not connect them directly to your audio source or amplifier.

2. Keep in mind that a super tweeter's output volume is usually low. If a super tweeter sounds excessively loud, it's typically a sign of poor quality.

3. Adding a super tweeter doesn't replace your current tweeter; please do not have that expectation.

4. While a super tweeter can enhance the overall sound experience, it does not guarantee "perfect" high-frequency sound. Instead, it enhances the sense of spaciousness and compensates for the high-frequency limitations of your original speakers, resulting in a better listening experience.

5. Make sure the sensitivity of the super tweeter is higher than that of your existing speakers. For example, if your horn-tweeter speakers have a sensitivity exceeding 100dB, adding a super tweeter with a sensitivity of 90dB or less wouldn't be effective.

6. The key to using super tweeters lies in experimentation and enjoyment. If you're not a serious audiophile or don't have the time to fine-tune settings, please think carefully about your purchase; achieving the best sound for your particular setup requires time and adjustments. And we recommend a minimum of 20~ hours of listening to allow your ears to adjust to the added high frequencies as well as fine tuning the adjustments.

7. Listening experiences are highly personal; it's completely normal for some individuals to notice a difference while others may not. But there's no need to stress—we offer a 30-day in-home trial period. Just ensure the product and packaging remain in good condition during this period, and you can shop with confidence.

We highly recommend researching and getting acquainted with super-tweeters before making a purchase!

Product Features

Take Your Sound to the Next Level

A super-tweeter speaker enhances your speaker system by improving the detail, energy, density, and texture of the high-frequency range. It also broadens the stereo soundstage, providing greater width and depth. This type of speaker is a fantastic addition for those whose audio systems lack vibrancy, clarity in high frequencies, expressiveness, or adequate high-frequency output.

Aperion RST Aluminum Ribbon Tweeter Unit

True Aluminum Ribbon Tweeter

The aluminum ribbon super tweeter (RST) utilizes an ultra-light aluminum ribbon that serves as both the diaphragm and the conductor, generating sound by being driven directly within a magnetic field.

Aperion Super Tweeter Compact and gorgeous

Compact and Gorgeous

Aperion Audio’s super tweeters are compact, stylish, and exquisitely crafted. Available in four different finishes, they look truly premium and sophisticated—perfect for pairing with your existing speakers without compromising their high-end aesthetic.

Aperion Audio RST Aluminum Ribbon Super Tweeter Speaker

One-to-One Pairing

Each pair of Aperion Super Tweeters have been meticulously tested and carefully matched to ensure optimal performance and consistency. This rigorous process guarantees that every unit meets high standards of quality and sound fidelity, allowing you to enjoy an enhanced audio experience.

Music vs Movies (Aperion Super Tweeter)

HiFi Music & Movis

Super tweeters can be paired with full-range bookshelf speakers, two-way bookshelf speakers, tower speakers, and home theater front or surround speakers; they are not limited to use with Hi-Fi music systems. You can also add super tweeters to a home theater system used for watching movies. Since many modern DVD and Blu-ray recordings capture frequencies well into the tens of thousands of Hertz, adding a super tweeter allows you to fully reproduce the audio effects and achieve the best possible listening experience.

Where_to_place_my_super_tweeter

Where should it be placed?

The optimal placement for a super tweeter speaker is on top of your loudspeaker, though positioning it immediately beside your speaker's tweeter is also an option. The primary goal is to achieve a "point source" effect, where the sound originates from a single, unified location. Additionally, because super tweeters have a faster response time, you may want to position the unit slightly farther back—while still keeping it vertically aligned with the high-frequency drivers—to ensure that the mid-range, bass, and high-frequency signals reach your ears simultaneously.

Also, just play around with the placement

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Highly acclaimed and sold worldwide

Since their introduction to the market, Aperion's Super Tweeters have earned widespread praise from audiophiles and casual listeners alike. Their exceptional sound quality and innovative design have made them a favorite among users globally. This enthusiastic reception is a primary motivation for expanding our product lineup, leading us to develop a variety of models to cater to diverse audio preferences and enhance every listening experience.

Aperion Audio Company

Quality Commitment

Aperion Super Tweeters offer a three-year warranty and lifetime maintenance and support, showing our commitment to quality and customer satisfaction.

Fast & Free shipping*

30 day In Home Audition

True Ribbon Tweeter Design

Ultra-fast transient response: The lightweight diaphragm enables quick start-and-stop action, allowing precise reproduction of musical detail.

Excellent high-frequency extension: Frequency limits can exceed 40kHz, maintaining a flat response for strong ultra-high-frequency resolution and rich overtones.

Low distortion and natural timbre: The lack of a traditional voice-coil structure reduces breakup and phase distortion, resulting in clear sound with a sense of "air."

Stable impedance: Input impedance closely matches DC resistance and remains constant across frequencies, simplifying crossover design and minimizing phase distortion.

Uniform directivity: The sound source characteristics ensure good off-axis performance and create an expansive soundstage

Matches Your Speakers With The Turn Of A Switch

5-point Crossover + OFF

Choose between 8, 10, 12, 14 or 16 kHz to set the Super Tweeter floor for the perfect blend with your speaker. The "OFF" position renders the Super Tweeter inert. The lowest setting, 8 kHz, will provide the most overlap with your existing tweeter while the highest setting, 16 kHz, will have minimal overlap, picking up at the top-end of the range. The crossover slope is 12 dB/octave.

Treble Adjust Knob

Too much of a good thing? Use the treble adjust to reduce the output of the Super Tweeter. Just flip the switch and adjust to taste, up to -5dB of attenuation.

Table showing treble adjust settings with crossover frequencies on a white background

Pairing the RST Super Tweeters With Your Speakers

Using the Verus V8T's as an example, and it's 91dB Sensitivity, to match this take a look at the chart on the left, where you can see the Crossover and Treble Adjust is set to 8k Hz and -5dB, giving you 91dB output Sensitivity, your other options include 10 kHz and -4dB, 12kHz and -3dB, 14 kHz and -2dB, or 16 kHz and -1dB, though we highly recommend you to try each setting and see what works best for you.

Easy Connection

Aperion Audio Super Tweeters are external devices that connect in parallel to the binding posts of your passive speakers—just ensure that you connect positive to positive and negative to negative. The key is to experiment; avoid listening too closely. Instead, assess the sound quality from your usual listening spot to find which setting delivers the most natural, balanced, and seamless integration. Once you pinpoint the crossover setting that appeals to you the most, you can keep it for long-term use.

Graph showing the extended frequency response of our Super Tweeter on the 14 kHz and 16 kHz settings when paired with a bookshelf speaker

Fast & Free shipping*

30 day In Home Audition

Specifications & Features

Specifications

Frequency Response: 8 Khz-40 Khz

Impedance: 6 Ohms

Sensitivity: 96 dB

Crossover Points: 8K, 10K, 12K, 14K, 16K & off

Treble Adjust: 0,-1dB,-2dB,-3dB,-4dB,-5dB

Crossover Slope: 12 dB/octave

Recommended Power: 10-100 Watts

Tweeter: APERION Ultra-Thin Aluminum Ribbon Tweeter

Product Weight: 3.9 lb / 1.75 kg each

Product Dimensions: W 4.4" x H 5.9" x D 6.5" / W 112mm x H 151mm x D 166mm

Placement Location: Add on top of speakers

Shipping Weight: 8.8 lb / 4 kg pair

Shipping Dimensions: L 12.6" x W 8.9" H x 9" / L 320mm x W 225mm x H 230mm (LxWxH)

Aluminum Ribbon Tweeter

This is not just any normal tweeter; while most tweeters max out at around 20K, the APERION® Aluminum Ribbon Super Tweeter extends another 20,000+ Hertz above that, reaching up to 40,000 Hertz and providing an ultra smooth, clean high-frequency response for the ultimate listening experience.

5-point Crossover + OFF

Choose between 8, 10, 12, 14 or 16 kHz to set the Super Tweeter floor for the perfect blend with your speaker. The "OFF" position renders the Super Tweeter inert. The lowest setting, 8 kHz, will provide the most overlap with your existing tweeter while the highest setting, 16 kHz, will have minimal overlap, picking up at the top-end of the range. The crossover slope is 12 dB/octave.

Treble Adjust Knob

Too much of a good thing? Use the treble adjust to reduce the output of the Super Tweeter. Just flip the switch and adjust to taste, up to -5dB reduction in output.

Easy To Connect

The Super Tweeter shares the same binding posts as the speaker you are pairing them with.

It feeds off the power your main speaker is already receiving, so simply grab your wiring, connect it to your main speaker's binding posts directly to the Super Tweeters, sit back, relax and enjoy.

Beautifully Curved Cabinetry

The finishing touch for every Super Tweeter Speaker is a matte black/white, gloss cherry, or piano-black lacquer that’s so right for every decor, your coffee table will be jealous.

5-Way Gold-Plated Binding Posts

The 5-way gold-plated binding posts let you connect your speakers any which way you choose: bare wire, banana plugs, spades, round pins or flat pins.

Warranty and Downloads

FAQs

What's in the box?

Inside the box you will find an owners manual and two Aluminum RST (Ribbon Super Tweeter) Speakers

Can only dogs and cats hear it?

It is well known that the human hearing range is 20 Hz to 20 kHz; in reality, many older adults cannot even hear frequencies above 15 kHz. Since the human ear cannot perceive frequencies exceeding 20 kHz, why is there a need for "super-tweeters" that reach 40 kHz? Consequently, many people online claim that such sounds are audible only to cats and dogs.

This is a common misconception. When we design super-tweeters capable of reaching 40 kHz, the goal is not to enable you to hear 40 kHz itself, but rather to enhance the quality of the sound within the audible range (up to 20 kHz).

To take a simple example, suppose there are two tweeters:
A: Frequency response limit of 20 kHz
B: Frequency response limit of 40 kHz
If both are made to reproduce a 15 kHz sound:

A is already approaching its frequency response limit:
- The diaphragm begins to exhibit breakup (modal vibration)
- Phase distortion increases
- Distortion levels rise

B is operating at only half its capacity, so:
- Its sound is more linear
- Distortion is lower
- Transient response is better

It is akin to comparing two cars: one with an engine capable of 200 km/h and another of 400 km/h. When both are driven at 100 km/h, the latter operates with noticeably greater ease and composure.

Thus, the true value of the Aperion Audio super tweeter lies in:
✅ A higher diaphragm breakup point
✅ A more linear operating range
✅ Lower distortion
✅ Faster transient response
✅ Superior phase characteristics
✅ Greater dynamic headroom

In other words:
The pursuit of a 40 kHz range in Aperion super tweeters is not about extending the upper limit of human hearing; rather, it is about ensuring that music reproduction within the 20 kHz range sounds more authentic, natural, and effortless.

What are the main benefits of adding the Aperion RST Aluminum Ribbon Super Tweeter Speaker Pair to my audio system?

The Aperion RST Aluminum Ribbon Super Tweeter enhances your sound system by delivering extended high-frequency response up to 40 kHz, creating a more lifelike, 'airy' soundstage with exceptional clarity, detail, and realism. Adding this super tweeter can reveal subtle nuances in music and audio that standard speakers may miss.

How do I connect the Aperion Aluminum Ribbon Super Tweeter to my existing speakers?

The Super Tweeter connects directly to the binding posts of your main passive speakers (not the amplifier). It uses a parallel connection, sharing the same signal as your main speaker. You can use bare wire, banana plugs, or spades, and it integrates easily with most bookshelf, tower, center channel, or surround sound speakers.

Which speakers are compatible with the Aperion RST Aluminum Ribbon Super Tweeter?

This super tweeter is designed to work with most passive speakers that have a sensitivity rating between 85 and 95 dB. It pairs well with bookshelf, tower, center channel, and surround speakers across a range of high fidelity systems. However, it is not intended for use with powered or Bluetooth speakers.

Can I adjust the crossover frequency and treble response on the Aperion Aluminum Ribbon Super Tweeter?

Yes! The Super Tweeter offers a 5-point crossover knob (8, 10, 12, 14, 16 kHz, or OFF) for seamless integration and blending with your existing speakers. It also features a treble adjust knob allowing attenuation down to -5 dB, so you can finely tune the output for your listening preferences.

What makes the Aluminum Ribbon Super Tweeter different from standard tweeters or other super tweeters?

Unlike most tweeters capped at 20 kHz, the Aperion Aluminum Ribbon Super Tweeter extends up to 40 kHz thanks to its ultra-thin (20 μm) true ribbon design and powerful neodymium magnets. This design delivers faster transient response, minimal distortion, and exceptional high-frequency extension, creating an immersive, transparent, and detailed soundstage.

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