Full range driver.How can you tell?

[superdog]

If one came across a driver with no cabs or crossover how can you tell if it is a full range driver?Do full range drivers need crossovers?

 

[kfa888]

No crossovers. Hard to tell just by looking unless it is a popular FR.

 

[superdog]

Thanks for that info.I was just wondering in case I found some but have never seen this question brought up before.Why do the Tannoy Dual Concentrics have a crossover?

 

[kfa888]

They are co-axial. The tweeter is mounted in the center of the magnet. It is a 2 way not a FR. FR means one driver covering as much of the spectrum it can.

 

[MarkAnderson]

The most obvious indicator of a full-ranger driver is the presence a whizzer cone. Many of the newer ones sport bullet-shaped "phase plugs". And some just look like woofers and/or midranges. JBL made one with an aluminum dust cap that comes to mind, but I don't recall the model.

Oftentimes, coaxial and triaxial speaker are referred to as FR drivers, but they aren't, really.

 

[MarkAnderson]

http://en.wikipedia.org/wiki/Full-range

 

[tensleep]

JBL made one with an aluminum dust cap that comes to mind, but I don't recall the model.

The venerable D130 covered most of the audio range. Is that the driver you were thinking of?

 

[MarkAnderson]

The venerable D130 covered most of the audio range. Is that the driver you were thinking of?

I do believe it might be. :yes:

 

[tensleep]

I do believe it might be. :yes:

Great speaker! I am always on the lookout for one of these. They have been eclipsed by later model JBLs, but would still be fantastic, especially in an electric guitar cabinet!

 

[Paratima]

http://www.audioheritage.org/html/profiles/jbl/d130.htm

Mucho info on the D130.