JBL studio 590

Product highlights:
frequency response: 35-40,000 Hz (-6dB)
recommended amplifier power: up to 250 watts
sensitivity: 92 dB
impedance: 6 ohms
1" compression driver with neodymium magnet and one-piece Teonex diaphragm on a glass-filled ABS Bi-Radial horn
dual 8" PolyPlas cast aluminum frame woofers with symmetrical field geometry (SFG) magnet structures and rubber surrounds
bass-reflex (ported) design
dual gold-plated speaker binding posts (bi-wire capable)
port tube inserts included for attenuating bass in the 50-100Hz region to compensate for room placement
12-11/16"W x 49-3/4"H x 16-1/4"D