drivers, enclosures and other helpful(useless) knowledge

[PV Audio 5,000+ posts]

Someone needs to contribute something..

 

[ballstothewall 10+ year member]

I would if I could..//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[PV Audio 5,000+ posts]

Bro, you built a BLH...you obviously know something about woodworking.

 

[ballstothewall 10+ year member]

Eh, building a BLH was easy actually, even the 206e design for their 8" driver looks pretty easy to build. But let me see if I can come up with some woodworking stuff that hasen't already been covered. May take me a little while though...

 

[PV Audio 5,000+ posts]

Anyone that works with walnut obviously has some sort of skill.

 

[ballstothewall 10+ year member]

Ok ok ok, I will type something up, give me a day to work it up, gotta test coming up.

 

[PV Audio 5,000+ posts]

Geah, that's what it is. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[PV Audio 5,000+ posts]

Gah, i'm out of good info to share for right now.

 

[joetama 5,000+ posts]

The reason for a speaker element that will efficiently produce sounds over 20kHz is sounds in the ultrasonic or supersonic range still affect the audible frequencies. For example if you have a 1 kHz freq played through a system also playing a 2.5 kHz frequency it's going to affect the sound that is heard. Well the same goes for frequencies over 20 kHz. It's usually considered that 30 kHz is the point where the affective mixing of frequencies is no longer important enough to reproduce, however Sennheiser has done research with their recording mics that show sound up to 40 kHz still affects sound as low as 1 kHz. Also, if you have a piston tweeter or planer tweeter (really any tweeter with moving mass) and they will effectively go up beyond the point of true audible sound, 20 kHz, the diaphragm will act more like a perfect piston up to and the 20 kHz point. Meaning the break-up frequency is much higher, consequently causing less distortion and a cleaner brighter high end.

 

[Ctesibius 10+ year member]

For example if you have a 1 kHz freq played through a system also playing a 2.5 kHz frequency it's going to affect the sound that is heard. Well the same goes for frequencies over 20 kHz. It's usually considered that 30 kHz is the point where the affective mixing of frequencies is no longer important enough to reproduce, however Sennheiser has done research with their recording mics that show sound up to 40 kHz still affects sound as low as 1 kHz.

CD's are presently only capable of storing data up to ~22khz. It is physically impossible for a regular CD to contain information above this point, as it is half of the sampling rate.

 

[JimJ 5,000+ posts]

Part of why I don't like CDs if fidelity is a concern //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[PV Audio 5,000+ posts]

Jim, sticky?

 

[joetama 5,000+ posts]

CD's are presently only capable of storing data up to ~22khz. It is physically impossible for a regular CD to contain information above this point, as it is half of the sampling rate.

That's why I listen to SACD's or DVD-Audio almost only...

 

[PV Audio 5,000+ posts]

If I could afford a SACD player then I'd buy them.

 

[JimJ 5,000+ posts]

If I could afford a SACD player then I'd buy them.

There are some under the $200 price point, I believe...

Problem is, SACD has even slower sales than vinyl, so not a lot of stuff gets released to it.