The Vifa D27TG-35-06 is a high Performance 1" Tweeter featuring a tuned and damped double rear chamber, giving a low resonant frequency of 911 Hz. The voice coil / gap is filled with low damping ferrofluid for cooling / thermal stability without affecting the transient response; the voice coil is terminated with tinsel braided leads. Now supplied as a Peerless branded product.
Used in PMC models: FB1, TB1, TB1S, TB2, TB2S, DB1, DB1S. Also fits some early ATC models.