Klipsch La Scala AL6 Heritage Loudspeaker (Each) at Vinyl Sound Toronto Canada

The La Scala AL6 is a three-way, fully horn-loaded floorstanding loudspeaker from Klipsch (Hope, Arkansas, USA), available at Vinyl Sound in Toronto, Canada. First introduced in 1963 and now in its most radical revision in over six decades, the AL6 is the latest generation of the Heritage Series La Scala, designed by Klipsch Chief Designer Roy Delgado using the same core principles established by founder Paul W. Klipsch. The AL6 features the new K-1133-HP 3" midrange compression driver, a K-771 high-frequency compression driver with patented extended phase plug, and a K-281 12" woofer in a first-ever patented horn-loaded vented enclosure, delivering a frequency response of 40Hz to 19kHz with a sensitivity of 103 dB and a maximum SPL of 120 dB. Each speaker is hand-built to order in Hope, Arkansas, with a book-matched natural wood veneer and signed by its craftsperson, receiving a StereoNET Applause Award in 2025 and an Outstanding Product designation from Hi-Fi News.

Patented Horn-Loaded Vented Bass System

For the first time in La Scala history, the AL6 introduces a patented horn-loaded, vented enclosure for the K-281 12" woofer, combining the efficiency advantages of a folded horn with the extended low-frequency output of a bass reflex system. This hybrid design reduces the woofer diameter from the previous 15" to 12" while deepening bass extension from 51Hz in the AL5 to 40Hz in the AL6, a meaningful improvement that makes the speaker viable in a broader range of room placements without dependence on corner loading. The result is richer, more robust bass with lower distortion and greater room flexibility than any previous La Scala model, addressing the one area where the speaker's historic reputation had room for improvement.

K-1133-HP Cinema-Grade Midrange and K-406M Tractrix Horn

The AL6 replaces the previous AL5 midrange driver with the new K-1133-HP, a cinema-grade 3" compression driver that adds a full inch of diaphragm diameter over the prior model. The larger compression area generates significantly greater sound pressure at the horn's throat, translating to more presence, dynamic headroom, and clarity in the critical midrange band. This driver is mated to the new K-406M patented Tractrix midrange horn, which features a shorter 2" throat that brings the horn's exit point closer to the tweeter and woofer for improved time alignment across all three drivers. Klipsch's proprietary Mumps technology adds precision contours along the horn's interior walls to maintain frequency response consistency across the full coverage area, reducing the off-axis colorations that can characterize horn-loaded designs.

K-771 Compression Driver with Extended Phase Plug

The AL6's high-frequency section pairs the K-771 compression driver with a new, patented extended phase plug mounted within the K-792 horn. The extended phase plug prevents acoustic cancellations that occur when wavelengths from different points across the diaphragm arrive at the throat out of phase, equalizing path lengths for cleaner, more coherent dispersion. The result is greater high-frequency coverage, reduced coloration at the listening position, and a natural, unforced treble character that complements the dynamic authority of the midrange and bass sections.

Optional Heritage Active Crossover

The AL6 supports an optional Heritage Active Crossover, derived directly from the technology developed for the Klipsch Jubilee floorstanding speaker. The Heritage Active DSP replaces the internal passive crossover with a digital signal processing unit that provides precise time and phase alignment across all three drivers, EQ correction for a flatter frequency response, and independent gain control for the woofer and tweeter sections to compensate for amplifier sensitivity differences. Users can tri-amplify the AL6 with three separate amplifier channels for maximum dynamic separation and control. The redesigned rear-panel I/O now includes dedicated passive and active inputs alongside a passive output, making it straightforward to switch between single-amplifier passive operation and active tri-amp configurations at any time.

Key Features

• K-1133-HP 3" Midrange Compression Driver: Cinema-grade compression driver with a full inch more diaphragm area than the AL5's midrange driver, delivering greater sound pressure, presence, and dynamic clarity in the midrange passband.
• K-406M Patented Tractrix Midrange Horn with Mumps Technology: Shorter 2" throat improves time alignment; Mumps contours maintain even frequency response to the horn's edge for more natural and consistent coverage.
• K-771 Compression Driver with Extended Phase Plug: Patented extended phase plug mounted in the K-792 horn equalizes wavelengths and prevents cancellations for cleaner, wider high-frequency dispersion.
• First-Ever Patented Horn-Loaded Vented Woofer Enclosure: K-281 12" woofer in a hybrid folded-horn and bass-reflex cabinet extends bass to 40Hz (-4dB), a full decade lower than the AL5's performance, with reduced distortion and improved room flexibility.
• 103 dB Sensitivity / 120 dB Maximum SPL: Exceptional efficiency allows full-range reference-level output with as little as a few watts from a high-quality amplifier, making the AL6 ideal for low-powered tube amplification.
• Optional Heritage Active Crossover: Jubilee-derived DSP crossover enables tri-amplification with precise time and phase alignment, independent LF and HF gain control, and a flat, color-free frequency response.
• Redesigned Rear I/O Panel: Passive and active inputs plus passive output allow seamless switching between single-amp passive and tri-amp active configurations without rewiring.
• Book-Matched Natural Wood Veneer: Available in American Walnut, American Auburn, and Black Ash with matched grain between the high-frequency and low-frequency cabinet sections and vertically grained waterfall appearance.
• 1" Thick High-Frequency Cabinet Walls: Increased cabinet rigidity reduces resonance and contributes to the AL6's low coloration and transparent midrange character.
• Retro Silver Metallic Grille and Cast Zinc Logo: Heritage design elements referencing the original 1963 La Scala aesthetic.
• Hand-Built to Order in Hope, Arkansas, USA: Each speaker is individually assembled, signed, and certificated at the Klipsch Heritage factory in Hope, Arkansas, consistent with all Heritage Series models.
• 10-Year Warranty: Klipsch Heritage Series warranty coverage for a decade of ownership confidence.

Technical Specifications

Awards and Critical Recognition

• StereoNET Applause Award, 2025: "It's hugely dramatic and visceral, with a physical sense of the music meeting you in space and time."
• Hi-Fi News Outstanding Product, 2025: "It makes music a living, breathing, tactile entity that has you on the edge of your seat, transfixed."

Frequently Asked Questions

What is the Klipsch La Scala AL6?

The Klipsch La Scala AL6 is a three-way, fully horn-loaded floorstanding loudspeaker from the Heritage Series, first unveiled in 2025 as the sixth generation of the La Scala design originally created in 1963. It features a K-1133-HP 3" midrange compression driver, a K-771 HF compression driver with extended phase plug, and a K-281 12" woofer in the first-ever patented horn-loaded vented enclosure for a La Scala, delivering 40Hz to 19kHz frequency response at 103 dB sensitivity with a maximum SPL of 120 dB. Each speaker is hand-built to order in Hope, Arkansas.

How does the La Scala AL6 compare to the Klipschorn AK7 or the previous AL5?

The La Scala AL6 and Klipschorn AK7 share the same new K-406M Tractrix midrange horn, K-1133-HP compression driver, K-771 tweeter with extended phase plug, and optional Heritage Active Crossover system, but differ in their bass architectures and room placement requirements. The Klipschorn AK7 retains its corner-loading bass horn design and extends low-frequency output to 34Hz (-4dB), while the La Scala AL6 uses the new hybrid horn-loaded vented enclosure to reach 40Hz (-4dB) from any room placement without requiring a corner. Compared to the AL5, the AL6 deepens bass by over an octave from 51Hz to 40Hz, replaces the 2" midrange driver with a larger 3" compression driver, adds Tractrix and Mumps horn technology, and introduces the optional active DSP crossover capability that was previously unavailable on La Scala.

Can the La Scala AL6 be used with a low-powered tube amplifier?

Yes, the La Scala AL6 is exceptionally well suited to low-powered single-ended triode and push-pull tube amplifiers. Its 103 dB sensitivity means that a single watt at the terminals produces 103 dB at one metre, which is enough for reference listening levels in most rooms. Klipsch specifies a minimum impedance of 3.2 ohms at 70Hz, so amplifiers should be verified for stability at impedances below 4 ohms, particularly output-transformer-coupled designs. In practice, the AL6 has been widely paired with amplifiers in the 2 to 20-watt range with excellent results, a key reason the Heritage Series has maintained a dedicated following among tube audio enthusiasts for decades.

What is the Heritage Active Crossover and does the AL6 require it?

The Heritage Active Crossover is an optional external DSP-based crossover unit that replaces the AL6's internal passive network when tri-amplification is desired. Derived from the crossover system used in the Klipsch Jubilee, it provides digital time and phase alignment across all three driver sections, EQ correction for a flat frequency response, and independent gain adjustment for the LF and HF sections. The AL6 does not require the Heritage Active Crossover and performs fully with its internal passive crossover via a single stereo amplifier. The active crossover is an upgrade path for listeners who wish to bi- or tri-amplify the system and maximize dynamic separation and tonal balance, and can be added at any time via the rear-panel active input.

Where can I buy the Klipsch La Scala AL6 in Toronto or Canada?

The Klipsch La Scala AL6 is available at Vinyl Sound, an authorized Klipsch Heritage dealer in Toronto, Canada. Vinyl Sound carries the full Klipsch Heritage Series lineup, including the optional Heritage Active Crossover, and offers expert guidance on amplifier pairing, room setup, and finish selection for the AL6. Each La Scala AL6 is hand-built to order in Hope, Arkansas, so lead times apply.

What amplifier power is recommended for the La Scala AL6?

Klipsch specifies a maximum continuous power handling of 100 watts and a peak handling of 400 watts per speaker. Given the AL6's 103 dB sensitivity, amplifiers with outputs ranging from 2 watts to 100 watts are all capable of producing substantial listening levels. Single-ended triode, push-pull tube, and low-powered solid-state amplifiers are all commonly used with Heritage Series La Scala speakers. The AL6 rewards amplifiers with low noise floors and good current capability, and its minimum impedance of 3.2 ohms at 70Hz should be considered when selecting a partnering amplifier, particularly for tube designs with output-transformer-based impedance matching.

What finishes are available for the La Scala AL6?

The La Scala AL6 is available in three natural wood book-matched veneer finishes: American Walnut, American Auburn (a new finish introduced alongside the AL6), and Black Ash. Each finish features vertical grain-matched veneers between the high-frequency and low-frequency cabinet sections for a waterfall appearance, with a silver metallic retro-style cloth grille and a nostalgic cast zinc Klipsch script logo. As with all Klipsch Heritage Series speakers, each pair is hand-built to order in Hope, Arkansas.