The Heresy IV is the entry point into the Klipsch Heritage range and a true classic, dating back to 1957. This compact three-way horn-loaded speaker delivers the immediacy and realism of the larger Heritage models from a footprint that suits real rooms.
A 12 inch woofer pairs with horn-loaded midrange and treble compression drivers, and for this fourth generation a rear port and a fully revised AudioQuest-wired crossover bring deeper, more controlled bass. The removable base adds placement flexibility. Sold each, in Black Ash and American Walnut veneers.
| Type | Heritage floorstanding speaker |
| Configuration | Three-way, horn-loaded |
| Frequency response | 48 Hz to 20 kHz, plus or minus 3 dB |
| Sensitivity | 99 dB at 2.83V / 1m |
| Power handling | 100 watts continuous, 400 watts peak |
| Nominal impedance | 8 ohms |
| Drivers | 12 inch woofer, horn-loaded midrange and titanium tweeter |
| Enclosure | Bass-reflex, rear-ported, AudioQuest internal wiring |
| Finishes | Black Ash, American Walnut |
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