With the new Klipsch Heresy IV, the classic design has been tweaked, featuring a new polyimide-diaphragm midrange driver. The tweeter gets an all-new wide-dispersion phase plug, which creates a larger listening "sweet spot."
For the first time, the Heresy now features a rear port, which improves low-frequency extension by about 10Hz for more authoritative sound. Heresy's high-efficiency design — 99 dB sensitivity — makes it an excellent choice for use with low- and medium-powered tube amps.
Klipsch introduced the original Heresy in 1957 and Heresy IV is still designed and hand-built in Hope, Arkansas. It's available in several attractive book-matched wood veneer finishes, which provide a "mirror" image of each other. That's because each pair of Heresys is sourced from the same piece of timber, with the speakers precisely arranged to provide an aesthetically pleasing mirror image at the splice.
Specifications:
- 3-way design
- tweeter: 1" titanium-diaphragm compression driver with Tractrix® horn and wide-dispersion phase plug
- midrange: 1-3/4" polyimide-diaphragm compression driver with Tractrix® horn
- woofer: 12" fiber-composite cone
- bass-reflex enclosure with rear-firing Tractrix port
- frequency response: 48-20,000 Hz (±4dB)
- sensitivity: 99 dB
- nominal impedance: 8 ohms compatible
- power handling: 100 watts continuous (400 watts peak)
- book-matched real wood veneer finish
- veneer leaves for the left and right speakers are crafted from the same piece of timber
- they're precisely arranged to provide an aesthetically pleasing "mirror" image at the splice
- removable cloth grille
- dual sets of speaker binding posts allow bi-amping or bi-wiring
- 15-1/2"W x 24-13/16"H x 13-1/4"D (each)
- weight: 45 lbs. (each)
- warranty: 10 years
