Final Production Specs (Coming Soon)
Chia has been working hard on the final tuning of the FS-X, he’s almost there but he needs some more time to fix the production specs.
As soon as we have them we’ll post them in another, separate, update.
The next steps after that will be to build sample units of the FS-X, film the demo and send out samples for testing and review.
In view of the timeline, if any of you need to change your address, please do so using instructions from Update #49.
Thank you for your recent questions and comments, here’s a few answers we got from Chia.
ttan asked:“@Chia at FS-X Can you clarify on the battery-life aspects. The 50 hours claim is based of a voice-speaking volume of 70db. But at loud playing volumes, the battery life should drop dramatically. A 12 watt-hour battery running close to max continuous power (35watt or 54 watt) would imply that the battery would be drained in less than half-hour of playback. Can you please clarify this? Thanks.”
No, unless you are listening to 100Hz square wave, (a test special test signal, not actual music) the amplifier is still efficient enough to run for a really respectable time. This will be reflected in the final specs.
bsl100 commented on the issue of Fs (fundamental frequency).
This parameter is the free-air resonant frequency of a speaker. Simply stated, it is the point at which the weight of the moving parts of the speaker becomes balanced with the force of the speaker suspension when in motion. If you’ve ever seen a piece of string start humming uncontrollably in the wind, you have seen the effect of reaching a resonant frequency. It is important to know this information so that you can prevent your enclosure from ‘ringing’. With a loudspeaker, the mass of the moving parts, and the stiffness of the suspension (surround and spider) are the key elements that affect the resonant frequency. As a general rule of thumb, a lower Fs indicates a woofer that would be better for low-frequency reproduction than a woofer with a higher Fs. This is not always the case though, because other parameters affect the ultimate performance as well.
Put another way, an Fs value of x Hz, does not imply there is no usable sound at frequencies below x Hz.
Again, this will be reflected in the final specs.
Here’s an updated timeline with our projections.
All the best,
The Frankenspiel Team