Klipsch Heritage Forte IV

HIGH EFFICIENCY, HIGH PERFORMANCE LOUDSPEAKER 

The Forte IV hosts a three-way design utilising a 12” woofer and horn-loaded midrange and tweeter. The Forte IV incorporates an all new K-702 midrange compression driver, featuring a polyimide diaphragm for exceptional detail and dynamics. The K-702 midrange is mated to a modified Tractrix® horn — featuring our patented Mumps technology for even polar response of mid frequencies, giving you more consistent sound throughout the listening area. The titanium diaphragm high-frequency driver has an all-new wide dispersion phase plug for providing exceptionally even high-frequency dispersion for a wider, more accurate sweet spot. 

PASSIVE RADIATOR YIELDS FULL RANGE PERFORMANCE 

The Forte IV’s well-extended bass is found in the use of a rear-mounted passive radiator. A mammoth 15” (38 cm) in size, this sub-bass radiator operates on acoustic pressure generated by the active woofer for greater bass output and extension. 

NETWORK 

The Forte IV has been completely re-voiced from its predecessor, utilising premium componentry in an all new high-fidelity network — minimising electrical degradation throughout the circuitry — for truer to life sound with best in class efficiency and power handling. The new network draws from the classic three-way steep slope design of the legendary Klipschorn and La Scala speakers. 

MATCHED PAIRS 

Every pair of Heritage series loudspeakers are grain-matched using wood veneer panels that come from the same timber. Each cabinet is carefully matched so that each speaker in the pair is practically indistinguishable from the other. The speakers move seamlessly together through the factory, and each finished product is inspected and labeled with sequential serial numbers, ensuring that your Heritage series speakers leave the factory as a meticulously crafted set. 

BUILT TO LAST 

While each and every component of the Forte IV is built to last, Klipsch has always recognised the unique and critical role of a loudspeaker’s cabinet in the sound reproduction process. From the craftsmen in Hope, AR to the engineers in Indianapolis, IN, Klipsch has always put an extraordinary emphasis on cabinet design. The Forte enclosure is assembled using only the highest-grade adhesives and fasteners. This is a speaker you will hand down from generation to generation. 

BI-AMP INPUT PANEL AND BINDING POSTS 

The Forte’s premium, aluminium input panel accommodates large, high-quality speaker cables. Strong, versatile and quality binding posts provide the capability for bi-wiring or bi-amping. 

BOOK-MATCHED WOOD VENEER 

Klipsch only uses book-matched wood veneers for the Heritage series. The veneer leaves are kept in order as they are delicately sliced from the timber and precisely arranged to provide a mirror image at the splice joint — like turning the pages of a book. This gives each speaker an aesthetically appealing and consistent appearance that is treasured more than any other cut of wood veneer. 

Crossover Frequency

• HF: 5.2kHz

• MF: 650Hz

High Frequency Driver

• K-100-TI 1" (2.54cm) Titanium Diaphragm Compression Driver on a K-79T horn

Midrange

• K-702 1.75” (4.45cm) Polyimide Compression Driver mated to a K-703-M horn

Low Frequency Driver

• K-281 12" (30.48cm) Fiber-Composite Cone Woofer, KD-15 15" (38.1cm) Passive cone radiator

Enclosure Material

• 3/4" MDF

Frequency Response

• 38Hz - 20kHz (±3dB)

Sensitivity

• 99dB at 2.83V / 1m

Power Handling

• 100W/400W

Maximum SPL

• 116dB (Compatible)

Nominal Impedance

• 8 ohms Compatible

Inputs

• Dual Binding Post / Bi-Wire / Bi-Amp

Height

• 35.75” (90.81cm)

Width

• 16.63” (42.24cm)

Depth

• 13" (33cm)

Weight

• 72lbs (32.7kg)