Klipsch RF-7 III Reference Floorstanding Speaker Dual 10" Drivers at Vinyl Sound Toronto Canada

The RF-7 III is the flagship floorstanding speaker of the Klipsch Reference Series (Hope, Arkansas, USA), available at Vinyl Sound in Toronto, Canada. Designed and assembled in Hope, Arkansas, the RF-7 III features a 1.75-inch titanium diaphragm compression driver on a 90x90-degree compressed molded-rubber Tractrix horn, dual 10-inch spun copper Cerametallic cone woofers in cast aluminum frames, and a bifurcated dual-chamber enclosure with dual rear-firing Tractrix ports that allows each woofer and port pair to operate independently. With 100 dB sensitivity, a 32Hz to 25kHz frequency response, and 250W continuous power handling, the RF-7 III delivers Klipsch's high-efficiency Reference sound in a furniture-grade Walnut wood veneer cabinet standing 49 inches tall. Sold individually with dual binding posts for bi-wiring and bi-amplification.

90x90 Degree Compressed Molded-Rubber Tractrix Horn and Titanium Compression Driver

The RF-7 III's high-frequency section combines two purpose-designed components that work together to produce the wide-coverage, low-distortion horn performance Klipsch's Reference Series is built around. The 8.5-inch square Tractrix horn uses a circular throat that transitions to a square mouth, a geometry that improves the uniformity of high-frequency dispersion across both the horizontal and vertical planes simultaneously. The compressed molded-rubber construction of the horn body adds an additional layer of high-frequency damping that conventional rigid plastic or aluminum horn materials cannot match, absorbing internal reflections and reducing the coloration that older horn designs introduced at the upper frequency limits of their operating range. The new phase plug design on the 1.75-inch titanium diaphragm compression driver improves phase coherency at the horn throat by equalizing the acoustic path length from different points on the diaphragm to the throat exit, producing improved sound pressure linearity at high frequencies and a more coherent, detailed top end across the 1,300Hz to 25kHz operating range of the driver.

Dual 10" Cerametallic Woofers in Bifurcated Dual-Chamber Enclosure

The RF-7 III's low-frequency system is built around two 10-inch spun copper Cerametallic cone woofers, each mounted in its own independent chamber within the bifurcated cabinet. Cerametallic cone technology combines the rigidity of a ceramic-coated surface with the low mass of a metallic substrate, producing a cone that resists breakup and distortion at high excursion levels while maintaining the responsiveness needed for accurate transient reproduction. Each woofer features a heavy-duty cast aluminum frame that eliminates the resonances associated with stamped steel frames, and a dual shorting-ring magnet structure that cancels modulation of the magnetic flux during cone movement, improving the linearity of cone excursion and reducing distortion across the entire operating range. The bifurcated enclosure design physically separates each woofer into its own acoustic chamber with its own dedicated Tractrix port, preventing the standing waves that develop in undivided large-volume enclosures and eliminating the frequency anomalies these standing waves introduce in the sensitive midrange region around the 1,300Hz crossover point. Each Tractrix port applies the same horn-geometry mathematics used in Klipsch's compression drivers to the bass reflex port itself, minimizing air turbulence at the port mouth and producing cleaner, faster, more powerful low-frequency output than conventional circular or rectangular ports.

Key Features

• 90x90 Degree Tractrix Horn (Compressed Molded Rubber): An 8.5-inch square horn with circular throat and square mouth delivers uniform 90-degree horizontal and vertical dispersion, with molded-rubber construction adding high-frequency damping to reduce harshness and improve detail retrieval.
• 1.75" Titanium Compression Driver with New Phase Plug: A large-format titanium diaphragm compression driver with a redesigned phase plug improves phase coherency at the horn throat, producing better sound pressure linearity and cleaner high-frequency extension to 25kHz.
• Dual 10" Spun Copper Cerametallic Woofers: Two 10-inch Cerametallic cone woofers with cast aluminum frames and dual shorting-ring magnet structures deliver high-rigidity, low-mass cone performance with minimal breakup distortion across their full operating range.
• Bifurcated Dual-Chamber Enclosure: Each woofer operates in its own physically isolated cabinet chamber, preventing standing waves and frequency anomalies in the midrange region and improving the acoustic linearity of both drive systems independently.
• Dual Rear-Firing Tractrix Ports: Each cabinet chamber has its own dedicated Tractrix-geometry rear-firing port, applying horn-expansion mathematics to the port profile to minimize turbulence and deliver the cleanest, most powerful low-frequency output in its class.
• 100 dB Sensitivity: High efficiency enables substantial output from modest amplification and pairs well with a wide range of integrated amplifiers, AV receivers, and power amplifiers across all power ratings.
• 250W Continuous / 1000W Peak Power Handling: Exceptional power handling supports use with high-power amplification in large listening rooms and home theater configurations without driver stress or compression.
• Dual Binding Posts for Bi-Wire / Bi-Amp: A rear input panel with dual 5-way binding posts accommodates high-quality speaker cables and supports bi-wiring and bi-amplification for improved signal fidelity.
• Furniture-Grade Walnut Wood Veneer: A premium Walnut wood veneer finish elevates the RF-7 III above standard vinyl-wrapped Reference Series enclosures, presenting a refined aesthetic suitable for dedicated listening rooms and living spaces.
• Designed and Assembled in Hope, Arkansas: The RF-7 III is built to Klipsch's Reference Series standards by craftsmen in Hope, Arkansas, using domestic and imported components in the same facility as the Heritage Series.

Technical Specifications

Frequently Asked Questions

What is the Klipsch RF-7 III?

The Klipsch RF-7 III is the flagship floorstanding speaker of the Klipsch Reference Series, designed and assembled in Hope, Arkansas. It is a two-way bass-reflex loudspeaker featuring a 1.75-inch titanium compression driver on a 90x90-degree compressed molded-rubber Tractrix horn, dual 10-inch spun copper Cerametallic woofers in cast aluminum frames, and a bifurcated dual-chamber enclosure with dual rear-firing Tractrix ports. It delivers 100 dB sensitivity, a 32Hz to 25kHz frequency response, and 250W continuous power handling from a 49-inch-tall cabinet weighing 97 lbs per speaker.

How does the Klipsch RF-7 III compare to the Klipsch Forte IV or the Polk Audio Legend L800?

The RF-7 III and the Forte IV represent two distinct design philosophies within Klipsch's lineup. The Forte IV is a three-way Heritage Series speaker with a dedicated midrange compression driver and horn, a 15-inch passive radiator, and 99 dB sensitivity, prioritizing midrange accuracy and tube-amplifier compatibility in a more compact cabinet. The RF-7 III is a two-way Reference Series design emphasizing high power handling at 250W continuous, extended bass to 32Hz from dual 10-inch Cerametallic woofers, and 100 dB sensitivity in a larger 49-inch-tall cabinet suited to home theater and high-volume listening environments. Compared to the Polk Audio Legend L800 with its SDA surround technology, the RF-7 III offers a fundamentally different approach to soundstage width through horn-controlled dispersion rather than signal processing, with significantly higher sensitivity and power handling capacity.

What is the Cerametallic cone and why does it matter?

The Cerametallic cone is Klipsch's proprietary woofer cone technology combining a ceramic-coated surface with a metallic substrate to create a cone that is simultaneously extremely rigid and very low in mass. In woofer design, cone rigidity determines how accurately the cone follows the electrical input signal: a cone that flexes or breaks up under excursion produces distortion artifacts that blur transient detail and add coloration to bass and lower midrange frequencies. The Cerametallic cone's ceramic coating prevents the breakup modes that lightweight plastic or paper cones develop at higher excursion levels, while its metallic substrate keeps the overall cone mass low enough for fast, accurate transient response. The spun copper finish on the RF-7 III's Cerametallic woofers additionally provides a distinctive visual identifier and reflects the premium material specification of the Reference Series flagship.

Why does the RF-7 III use a bifurcated dual-chamber enclosure?

The bifurcated enclosure of the RF-7 III physically divides the cabinet into two independent acoustic chambers, one for each 10-inch woofer and its dedicated Tractrix port. In a single large-volume enclosure housing two woofers, the shared air volume creates standing wave patterns at specific frequencies determined by the cabinet's internal dimensions. These standing waves produce peaks and nulls in the bass response that appear as frequency anomalies, most problematically in the upper bass and lower midrange region near the 1,300Hz crossover point where they can color the critical handoff between the woofers and the compression driver. By isolating each woofer in its own independent chamber, the bifurcated design eliminates these shared standing waves, allowing each drive system to operate with greater linearity and producing a cleaner, more accurate response through the crossover region.

Can the Klipsch RF-7 III be used for both music listening and home theater?

Yes, the RF-7 III is well suited to both dedicated two-channel music listening and high-performance home theater applications. Its 100 dB sensitivity and 250W continuous power handling provide the dynamic headroom to reproduce movie soundtracks at reference level in large rooms without compression or driver strain, while its 32Hz to 25kHz frequency response and Tractrix horn dispersion deliver music listening performance capable of satisfying critical audiophile listening. The dual binding posts support bi-amplification, which some home theater processors and AV receivers support directly. Klipsch's Reference Series was developed with home theater compatibility as a core design criterion, making the RF-7 III a natural choice as a front left and right speaker in a high-performance Klipsch Reference home theater system.

Where can I buy the Klipsch RF-7 III in Toronto or Canada?

The Klipsch RF-7 III Reference floorstanding speaker is available at Vinyl Sound in Toronto, Canada. Vinyl Sound is an authorized Klipsch dealer stocking the RF-7 III in Walnut alongside other Reference and Heritage Series models. The RF-7 III can be purchased online through the Vinyl Sound Canada website with shipping options available across Canada, or by visiting or contacting the Vinyl Sound Toronto location directly for system configuration advice and pairing recommendations.

What amplification does the Klipsch RF-7 III pair well with?

The RF-7 III's 100 dB sensitivity and 8-ohm nominal impedance make it compatible with a very wide range of amplification including AV receivers, integrated amplifiers, and dedicated power amplifiers across all power ratings. Its 250W continuous power handling means it can accept substantial power from high-output amplifiers without driver stress, while its high sensitivity means even modestly powered amplifiers achieve high SPL levels with ease. High-current solid-state amplifiers from brands such as Anthem, Rotel, Emotiva, and Marantz are popular pairings for home theater use, providing tight bass control and dynamic headroom for demanding movie content. For two-channel listening, integrated amplifiers with at least 50 to 100 watts per channel into 8 ohms are recommended to take full advantage of the RF-7 III's dynamic range and low-frequency extension.