In 2017, Klipsch re-introduced the Forte as part of the Heritage speaker series. The new Forte IV features updated cosmetics and the latest advancements in acoustic engineering while maintaining the original charisma that made Forte so popular.
DESIGNED AND MADE IN THE USA Don't mess with perfection. We've made some important upgrades to the Forte IV, but it remains relatively unchanged since its inception. Remember great sound? We do, too. The Forte IV enclosure is still made in the USA, by proud craftsmen in Hope, Arkansas. Just like Paul W. Klipsch (PWK) intended.
HIGH EFFICIENCY, HIGH PERFORMANCE LOUDSPEAKER The Forte IV hosts a three-way design utilizing 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 revoiced from its predecessor, utilizing premium componentry in an all-new high-fidelity network — minimizing 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.
BI-AMP INPUT PANEL AND BINDING POSTS Forte's premium, aluminum 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.
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 recognized 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.
Features
High Efficiency, High Performance Loudspeaker
The Forte IV hosts a three-way design utilizing 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 revoiced from its predecessor, utilizing premium
componentry in an all new high-fidelity network — minimizing 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.
Bi-amp input panel and binding posts
The Forte’s premium, aluminum 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.
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 recognized 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.
Specifications
Frequency Response: 38Hz – 20kHz - Sensitivity: 121dB - Power handling (Cont/Peak): 100W / 400W - Maximum SPL: 116dB Continuous - Nominal Impedance: 8 ohms Compatible - 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 - Inputs: Dual binding posts / bi-wire / bi-amp - Height: 35.75” (90.81cm) - Width: 16.63” (42.24cm) - Depth: 13” (33cm) - Weight: 72 lbs (32.7kg)- Frequency Response: 38Hz – 20kHz - Sensitivity: 121dB - Power handling (Cont/Peak): 100W / 400W - Maximum SPL: 116dB Continuous - Nominal Impedance: 8 ohms Compatible - 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 - Inputs: Dual binding posts / bi-wire / bi-amp - Height: 35.75” (90.81cm) - Width: 16.63” (42.24cm) - Depth: 13” (33cm) - Weight: 72 lbs (32.7kg)
