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Dual Firing AMT Ribbon Super Tweeter Speaker Pair

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  • + Specifications
  • + Features
  • + FAQ
Aperionaudio Dual Firing Air Motion Transformer Ribbon Super Tweeter Speaker AMT Pair



Our new Flagship Dual AMT Super tweeter delivers quick dynamics and an ultra-clear high frequency transient response, expanding the atmospheric sound stage like you've never heard before. The light, airy highs produced by our AMT super tweeter are incredibly smooth, providing an effect which transports you even further into the sonic abyss of your music and movies.

Tech FAQ - The actual size of the driver is 3.19 x 1.34 inches (81mm x 34mm). The thickness of the Kapton is 12.5 μm, the Aluminum is 20 μm, in total thickness of 44 μm. Sensitivity was tested using 2.83v @ 1 meter. The crossover is Butterworth. Using FR4 pcb board, and Aperion custom capacitors. The internal cables are high purity copper to minimize resistance. It is a single ribbon, with dual firing open baffle. The driving force of this transducer is evenly distributed over the entire vibrating element.

The AMT can be suitably matched with any speaker whose sensitivity is between 87-98 dB, so this higher SPL rating allows the Dual AMT to be matched with power hungry speakers. While we've received plenty of stunning feedback on the Dual AMT's predecessors, we had an AMT style design in mind from the start - after years of development, we are proud to announce the Dual Air Motion Super Tweeter.



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 6 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 -5 dB.

     Easy Connection

The Super Tweeter shares the same binding posts as the speaker you're pairing it with. It feeds off the power your main speaker is already receiving, so no need to connect directly to an amplifier. 


Graph showing the extended frequency response of our Dual Air Motion Transformer AMT Ribbon Super Tweeter on the 14 kHz and
16 kHz settings when paired with a bookshelf speaker:



Of the many ideas on how to build a loudspeaker transducer, the Air Motion Transformer is unique in its way of making the air move. In the course of the history of loudspeakers, many different transducer designs have been introduced. All of them feature piston-like diaphragms that move the air in a 1:1 ratio so that the diaphragm velocity equals the air velocity. Whether we talk about electrostatic and magneto-static speakers, ribbons, voice coil based dome and cone speakers or even a Blatthaller design – they all follow this particular design approach.

The Air Motion Transformer is an electromagnetic driver, as it is based on the Lorentz force that moves the air in the single folds.The diaphragm itself has an aluminum circuit printed on it (violet arrows) and is surrounded by a strong magnetic field. The graphics in and around the small circles show the motion of the individual foils producing a sinusodial waveform: from where it starts (black circle) through the positive (green circle) and negative (red circle) half-waves. The resulting air flow (blue arrows) is four (!) times faster than speed in which the individual folds move, which is a big advantage when it comes to reproducing music signals with fast transients (cymbals, plugged guitar strings, etc.).

Key Features
  • Frequency Response up to 40 kHz
  • 5 Adjustable crossover points + OFF
  • Up to -5 dB Treble Adjust Knob
  • 5-way gold-plated binding posts
  • 3-year Warranty 

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    Check Awards and Professional Reviews of Super Tweeter Speakers

    + Specifications


    Download AMT Super Tweeter Manual

    Product Weight 3.5 lbs/1.6 Kg per each
    Frequency Response 8 kHz - 40 kHz
    Crossover Points 8K, 10K, 12K, 14K, 16K & off
    Crossover Slope 6 dB/octave
    Impedance 4 Ohms
    Sensitivity 96 dB
    Recommended Power 10 - 150 Watts
    Direct Power Handling 20 Watts
    Tweeter Air Motion Transformer AMT
    Product Dimensions 4.9" x 5.1" x 6.9" / 125 x 130 x 175 (HxWxD)
    Product Family Super Tweeter
    Placement Location On top of speakers
    Shipping Weight 8.2 lbs/ 3.7 Kg per pair
    Shipping Dimensions 13" x 7.5" x 8"/340 x 190 x 205mm (LxWxH)
    + Features


    Aperion Dual Air Motion Transformer Ribbon tweeter

    Aperion Audio's Dual Air Motion Transformer tweeter adds clarity, transient speed, and musical finesse to almost any loudspeaker design. A natural fullness in the treble is exhibited-- reminding us why we love high-end audio so much.

    5-Position Crossover Knob + Off

    The crossover knob allows you to activate the Super Tweeter at 8K, 10K, 12K, 14K, 16K or shut it off. The crossover slope is 6 dB/octave. This gives you maximum flexibility when incorporating these into your system. You can have more or less overlap with your existing tweeter to help brighten the sound at the 8K/10K crossover point, or have the Super Tweeter just fill the void above at the 14K/16K setting.

    Treble Adjust Knob for Attenuation

    If you love your Super Tweeter, but want a little less output, you can reduce the output by 0dB, -1dB, -2dB, -3dB, -4dB or -5dB by re-positioning the Knob.

    Aluminum alloy metal enclosure

    The DST uses a sturdy aluminum alloy metal enclosure to withstand the fast vibrations of Its diaphragm. The aluminum alloy minimizes noise and undesriable vibrations, leaving nothing but the air movements captured in your music. The DST aluminum enclosure not only provides acoustic benefits, but it completes the aesthetically pleasing design.

    + FAQ


    What's the difference between the Aluminum Ribbon Super Tweeter and the Planar Magnetic Super Tweeter?

    Answer: Overall, the treble range is more smooth across the high frequency range. The impedance of the Aluminum Ribbon is almost constant, so there is an excellent frequency response curve up through 40 kHz, but our recent upgrades also allow the Planar Ribbon to reach up to 40 kHz.

    Will adding a Super Tweeter cause phase issues?

    Answer: While adding any type of additional speaker to a signal chain has the potential to cause phasing within a room, our 1-step crossover design mitigates any phase issues. This 1-step design is not to save cost and space because if we were to add multi-step crossovers into the chain, it would cause a major phase effect and the sound test results would not sound good.

    What kind of speakers will the Super Tweeter work with?

    Answer: Most passive bookshelf or tower speakers are great candidates for the Super Tweeter. But, you can also use them with center channel speakers and surround speakers.

    How do I connect the Super Tweeter speaker to my passive speakers?

    Answer: The Super Tweeter connects directly to the binding posts on the speaker you are pairing it with (not to the amplifier!). This parallel connection allows the Super Tweeter to feed off the same signal as your main speaker.

    Since the Super Tweeter will most likely be sharing the binding posts with your amplifier connection, using wire with spade or ring connections will allow both sets of wires to easily connect to the same binding posts. If your speakers are bi-ampable, you can use one set of binding posts for the Super Tweeter and the other for the amplifier (making sure to keep the jumpers in place).

    Can I use the Super Tweeter speaker with my active (powered) or Bluetooth speakers?

    Answer: If it’s a sealed box, or portable type of Bluetooth speaker, you most likely will not be able to use a Super Tweeter with this speaker.

    "Will the Super Tweeter work with my electrostatic, full range, or professional audio speakers?"

    Answer: We advise you to check the sensitivity level and frequency response of your current speakers. A speaker that has a higher sensitivity level rating than the Super Tweeter might not be a good fit. However, the we've received feedback that the Super Tweeter works great with Bose 901's, Quad Electrostatic 2805, and other full range and electrostatic speakers.

    How much will the Super Tweeter change the treble response?

    Answer: The crossover setting will have the most effect on the treble sound. If your regular speaker doesn’t produce frequencies above 14 kHz very well, then that would be a good starting point for your crossover. Generally setting the crossover to 14 kHz or 16 kHz will add a nice touch to the treble response.

    What speaker wire is best for the Super Tweeter speaker?

    Answer: As with all cable, we recommend at least 14 gauge to minimize any loss of electrical current.

    What’s the highest frequency the Super Tweeter will reach?

    Answer: The Aperion Audio Planar Ribbon Super Tweeter can reach up to 33 kHz.

    Can you adjust the crossover frequency while music is playing?

    Answer: Yes, in fact this is highly recommended to experiment with, so you can find the sound that works best for you.

    What length of speaker cable do I need?

    Answer: You shouldn’t need more than a few feet, but it depends on the distance from your bookshelf or tower speakers binding post inputs to the Super Tweeter inputs.

    Can I buy an odd number of Super Tweeter speakers?

    Answer: Yes, just give us a call to make this request.


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