Leaderboard

It's in the PDF with all the SA specs here http://www.sundownaudio.com/pdfs/SA_Series_Manual%2810-12-15%29.pdf but it's .10cuft displacement for the 10s.

Technically yes, you can invert a mid. Sound radiates from both sides of the cone equally, you just don't notice this most of the time because the rear of the driver is sealed off from the front by some type of enclosure or baffle. Having them inverted wouldn't affect which way the sound is "projected" or cause all of the sound to be radiated into the door, but it would affect the high(er) frequency response of the driver. The basket and motor will create reflection/interference issues at certain frequencies and probably affect dispersion patterns in the upper frequencies as well. Where you will run into problems depends on the dimensions of the motor and basket (as they are related to the wavelength of the sound wave at which issues will occur, which will ofcourse determine what frequencies you will have an issue at)......the higher you play in frequency the more problems you will run into. Not to mention you run the risk of hearing the mechanical noise from the driver (which again, is normally "trapped" inside of the enclosure or separated by the baffle so you don't hear it). So overall no, it's not a good idea. But in theory if you were using them strictly as midbass speakers it would possibly be feasible. Mids can be wired out of phase. In fact this is common practice. My midrange are out of phase with my midbass and tweeters. In my case, I had to wire them out of phase due to the phase shift inherent to the 2nd order slope of the crossovers. But often wiring one or both mids out of phase is done because of the differing distances of the mids to the other speakers and to the listening position in car audio. Higher frequencies don't radiate only from the center of the cone. They radiate from all of the cone, but at some point the wavelengths will become shorter than the diameter of the driver and beaming will begin to occur, which means there is an increasingly narrowing dispersion pattern. But below the point of beaming, the sound radiates in a relatively even pattern. Higher frequencies are more easily localized than lower (subbass) frequencies. This has little to do directly with the mounting orientation of the driver, assuming the frequency response (et al) was the same you wouldn't notice a difference between an inverted mid and a normal mid. But indirectly it can make a difference because of changes to frequency response and such. How we localize sound depends on the frequency and the dimensions of your head, among other things.

If you truly need an enclosure built with urgency, you build it. Shipping from the US to Malaysia, or India, wherever you are, will take time.

lol.

Because we don't know what the xover in the Sundown is like. We were trying to save you money by waiting to see how much of your current equipment will fit your needs.

I was wondering the same thing. There's just something inherently cool about a black cadillac

pretty much the same thing. :/..

Holy Hell, I didn't realize the 390 cost so much. Why such a huge increase from the 270? It can't double to make it.