Why invert the subs?

[SpeedEuphoria 10+ year member]

I've seen a few reports of inverted resulting is less SPL, up to 1DB

Other than that in LOWERS tunning

 

[d2k 10+ year member]

The term isobaric is getting thrown around a lot in this thread. In order for a setup to truly be isobaric, the speakers must be coupled together. This means they are not only mounted inverted from one another, but they are mounted inline, with a very small airspace between them. The idea is to create a situation in which the motion/force from each speaker aids the other in its cone motion. The minor benefit is slightly better cone control, the major benefit is halving enclosure size requirement (due to, in essence, creating a speaker with double the BL force). The detriment is twice the speakers, and twice the power, to get the same output levels as only one of the speakers.
Several years ago when amplifiers were small, and speaker enclosures were big (for efficiency), halving enclosure size requirements was sometimes worth the added cost of isobaric setups. In today's world of cheap chinese watts and massive low-efficiency subs designed to work in small enclosures, its almost never a good idea anymore.

mate..... you are a font of knowledge, i could listen to you talking T/S parameters to me all day long....//content.invisioncic.com/y282845/emoticons/blush.gif.99bc659ee2012b7d826165e26fb5eebe.gif

great info.......//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif nut hug over!!

 

[akheathen Premium Member]

The term isobaric is getting thrown around a lot in this thread. In order for a setup to truly be isobaric, the speakers must be coupled together. This means they are not only mounted inverted from one another, but they are mounted inline, with a very small airspace between them. The idea is to create a situation in which the motion/force from each speaker aids the other in its cone motion. The minor benefit is slightly better cone control, the major benefit is halving enclosure size requirement (due to, in essence, creating a speaker with double the BL force). The detriment is twice the speakers, and twice the power, to get the same output levels as only one of the speakers.
Several years ago when amplifiers were small, and speaker enclosures were big (for efficiency), halving enclosure size requirements was sometimes worth the added cost of isobaric setups. In today's world of cheap chinese watts and massive low-efficiency subs designed to work in small enclosures, its almost never a good idea anymore.

ty.... the other use of the term is new to me.... i like white chocolate in my mocha...... tastes yummy

 

[Bettr n' Revrse 5,000+ posts]

If this is a big problem with any speaker you have, you are buying from the wrong manufacturers. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

That was just mean what you did... done hurted my feelers //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[ChevyRidinLow]

If this is a big problem with any speaker you have, you are buying from the wrong manufacturers. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

its not a problem but it is an improvement.

 

[ChevyRidinLow]

The term isobaric is getting thrown around a lot in this thread. In order for a setup to truly be isobaric, the speakers must be coupled together. This means they are not only mounted inverted from one another, but they are mounted inline, with a very small airspace between them. The idea is to create a situation in which the motion/force from each speaker aids the other in its cone motion. The minor benefit is slightly better cone control, the major benefit is halving enclosure size requirement (due to, in essence, creating a speaker with double the BL force). The detriment is twice the speakers, and twice the power, to get the same output levels as only one of the speakers.
Several years ago when amplifiers were small, and speaker enclosures were big (for efficiency), halving enclosure size requirements was sometimes worth the added cost of isobaric setups. In today's world of cheap chinese watts and massive low-efficiency subs designed to work in small enclosures, its almost never a good idea anymore.

this is what my professor told me which was probably derived from the meaning of the word in the real world.

 

[audioholic 5,000+ posts]

The off topic replies got out of hand in this thread, so I deleted them. I dont expect you guys to never stray off topic in the tech sections, but lets try to remember to not get carried away.

 

[Phoenix Risen 10+ year member]

sorry boss

 

[Bettr n' Revrse 5,000+ posts]

The off topic replies got out of hand in this thread, so I deleted them. I dont expect you guys to never stray off topic in the tech sections, but lets try to remember to not get carried away.

Ya we got a little carried away lol

 

[SPLaudio 5,000+ posts]

inverting subs was big in the late 90s when cast frames were getting more popular and the motors started getting bigger and more flashy.

 

[09civic 5,000+ posts]

inverting subs was big in the late 90s when cast frames were getting more popular and the motors started getting bigger and more flashy.

just like everything else when the years went by

 

[akheathen Premium Member]

not to mention most of the systems you see when you pick up a tuner, low-ridder, or other custom auto mag, and monkey-see, monkey-do.