OK so it has a spring only very little.
That means there's almost no mechanical damping.
So I guess you depend on electrical damping by the driving amp?
What are the T/S parameters; how does the very low mechanical damping make this speaker better than others?
Jan
With no restoring force for small displacements (not even enclosure air pressure?) you have the moving mass only so the speaker becomes a velocity transducer rather than a displacement transducer. 6dB/octave slope - would need equalisation.
That's what I argued before (if you mean stretch=spring power) and all the rest is gobbledegook.
Yes you do 😀
A dynamic driver do not need the stretching of the diaphragm material a electrostatic driver may possibly need as it is the voice coil that controls the positioning..
But you raised a interesting issue => maybe a electrostatic diaphragm also can be made without need of stretching if the electrostatic forces can do the job.
I have an electrostatic AMT under building and will experiment with that parameter and if a short can be avoided during power up it can a great idea 😀
Stereophile is a gold mine when it comes to a steady supply of snakeoil products.
Croft Acoustics Phono Integrated integrated amplifier | Stereophile.com
It seems the reviewers on there love a product even more if it measures like crap.
That's right, the worse it performs, the better they like it. Is it any wonder that companies go out of their way to make products that under perform then sell it for thousands? Less cost in circuit design and no worries if it doesn't work as well as a lowly receiver from Best Buy 🙄 The bonus for this product is moonlighting as a heater for those cold winter months.
Croft Acoustics Phono Integrated integrated amplifier | Stereophile.com
It seems the reviewers on there love a product even more if it measures like crap.
That's right, the worse it performs, the better they like it. Is it any wonder that companies go out of their way to make products that under perform then sell it for thousands? Less cost in circuit design and no worries if it doesn't work as well as a lowly receiver from Best Buy 🙄 The bonus for this product is moonlighting as a heater for those cold winter months.
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"And worst off all the non-linearities are most often frequency and level dependent", and time dependent ...
Applying to all aspects of the sound reproduction chain, not just drivers ... it becomes a 'nightmare' world, initially, when this is fully realised ...
Happily, a solution exists. There is a quality barrier which can be surmounted which allows all recordings to present their best face, to be highly satisfying to listen to -- technical improvements can easily occur beyond that which finesse aspects even further - to more perfectly realise bass reproduction, to allow higher SPLs without clipping - all icing on the cake from then on ...
Does this faction of the audio industry ever move forward or do they just recycle crap and re-submit it for review as something new? I mean if someone took a 30yr. old Conrad Johnston preamp and put it in a new box and sent it to TAS and Stereophile as something new it would probably generate the same gusher of hubris. Now there's the prank that needs to be done, forget the Randi challenges someone should make it a hobby to disrobe these clowns.
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10kHz rolloff on LP, yet it got a good review! Where are all the people who insist on 100kHz bandwidth?
It appears that they did something even more radical- packaged up a 1957-vintage circuit and sent it for review.
Maybe they suscribe to the 'less is more' philosophy: less design effort means more distortion, more frequency response problems, higher output impedance.
This can work provided that the reviewers also subscribe to 'less is more': "They clearly haven't spent money on components or the half-empty plain case so they must have spent lots of money on careful design to give that distinctive sound; of course as a journalist you can't expect me to look at the circuit and realise that this is not the case".
This can work provided that the reviewers also subscribe to 'less is more': "They clearly haven't spent money on components or the half-empty plain case so they must have spent lots of money on careful design to give that distinctive sound; of course as a journalist you can't expect me to look at the circuit and realise that this is not the case".
Link works fine without a password here.
Looks like an open baffle with 3 woofers, B&G mid and treble.
Looks like an open baffle with 3 woofers, B&G mid and treble.
The AMT "midrange" have flat response (-3dB) 100Hz and up to 15 - 20kHz, and are also of my own design..
The 8" drivers have -3dB at 10kHz as there are no breakups that add "fake" SPL at higher frequencies..
So what? There is no current running at mid position = 0 volt DC so the voice coil will not move either in or out as you believe..
Make up your mind. You either have the DC you claimed or you have a signal. Bait and switch is not going to cut it any more so than silly claims. If your current at the DC you were talking about is zero, you either have a cap in series (in which case, your speaker doesn't "work" at DC as you claim it does) or the voice coil is burnt out.
Sorry, Faraday is right.
Sorry, Faraday is right.
OK, works on a Mac (go figure), so I got to see it. Was hoping to see the drivers closer.
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