FS - Taket Batpure supertweeters

[Mikeandvan]

What exactly are these and how do they work?

[Barry]

They are super tweeters which are meant to operate above the upper limit of human hearing (i.e. above 20kHz). The transducers use the piezoelectric effect - they can be regarded as being similar to a crystal (or ceramic) cartridge, but operating in reverse (i.e. signal voltage in, mechanical movement out).
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[struth]

I have a feeling that efficiency number is from feeding it a full range signal and measuring the output. In other words so much energy is outside the range of the supertweeters that it doesn't get measured. I may be completely wrong about that, but the output in the effective range of these is supposed to be almost inaudible but still make a difference.

I couldn't hear them at all but they changed the air if that makes sense.
I wasn't expecting any improvement but a mate had tried them positively so I did and he was right. You don't have to hear something to feel a sense of something is my conclusion.

But hey ho, everyone's take is different.

[Barry]

I couldn't hear them at all but they changed the air if that makes sense.
I wasn't expecting any improvement but a mate had tried them positively so I did and he was right. You don't have to hear something to feel a sense of something is my conclusion.

But hey ho, everyone's take is different.

I agree. The upper limit of my hearing is below 10kHz, yet I can hear the effect of filtering out the harmonics of a violin laying above 20kHz.

If you can, try to get hold of a demonstration disc made for JBL to promote their speakers, as well as to help with setting them up. It's called 'Sessions':



One of the tracks consists of a solo violin playing a piece of music. The following track is the same piece but a 15kHz low-pass filter has been applied. The same with the next track, but the cut-off occurs at 10kHz. The changes due to filtering out the harmonics are quite clear to hear, despite my not being able to hear pure tones above 8-10kHz.

I can thus well imagine that supertweeters might have a beneficial effect, especially in providing a sense of 'air' or ambience, and I certainly wouldn't dismiss them. Some claim their use improves the focus and imaging of the instruments and vocalists


Note sure if it is connected, but the 'sirens' of emergency vehicles now intersperse the audible siren with bursts of white noise, as it has be found that it helps with the location of the source if the vehicle cannot be seen directly.

[Mikeandvan]

They are super tweeters which are meant to operate above the upper limit of human hearing (i.e. above 20kHz). The transducers use the piezoelectric effect - they can be regarded as being similar to a crystal (or ceramic) cartridge, but operating in reverse (i.e. signal voltage in, mechanical movement out).
.

Cheers Barry.

[Vince]

Grant is correct in they seem to add 'air' to the music. Not only is treble improved but so is the mids and bass.
I've had a pair for years and they are still going strong.
Glws

[RobsterD]

Yep definitely a worthwhile tweek thanks for all the replies these are now sold ��