preamp inverts polarity
kosst_amojan Air is a single ended medium of transmission.It is? Exactly what do you mean by that? You can compress it much more than you can decompress it.You can decompress air it until it's a vacuum, so it isn't clear what you mean here. |
Costco is close but no cigar. For starters air shocks in cars compress as much as they decompress. Air is a compressible fluid. Pressure, volume, temperature, whatever. Hel-loo! Second, when the system is in Reverse Polarity the speaker drivers move OUT when they should be moving back IN and visa Versace. They are 180 degrees out of phase. Follow? Cleedsy, old bean, a vacuum is created by evacuating air from the system not by compressing it. Hel-loo! |
@geoffkait Yeah, I can hear polarity. Been playing with that a while on my amp. @cleeds You kinda pointed out the point I was making. You can only decompress air to a vacuum. But you can compress air until it begins to change phase. Sea level air pressure is about 16 psi. That's the absolute limit to how negative a wave can be. But it’s not very technically difficult to produce 32 psi or even 50 psi pressure waves. That’s, in short, why air is single ended, why it’s natural character of distortion is low and even order, and why single ended amps best emulate the character of the medium sound travels through. |
Hey, I’m going to clunk your heads together. You do not (rpt not) obtain a vacuum by compressing air. You suck the air out of the container to produce a vacuum. A vacuum is measured by no. of air molecules per unit volume. A perfect vacuum would have no (as in zero) molecules at all. Obviously, a tremendous mass will compress air a lot but not (rpt not) completely, which is why air shock absorbers work even for very massive commercial jetliners. PV equals RT. The number of gas molecules in the container remains constant. Hardly a vacuum. In fact there are MORE molecules per unit volume when the air is compressed. A lot more. |
