Grandis GR8F Quad 8" 3-Way High Fidelity Flagship Floor Standing Speaker (SINGLE)

Frequency Response: (+/- 3dB) 26-42,000 Hz

Impedance: 4 Ohms

Sensitivity: 91 dB

Recommended Power: 20-400 Watts

Peak Power: 800 Watts

Tweeter: 1.1" Aperion Silk-dome Tweeter with Proprietary Coating

Midrange: 3" Soft-dome Mid-range Driver x 2

Woofers: 8" A.F.G. Cone Long-Throw Woofers x 4

Driver Configuration: 3-Way 8" HiFi Floorstanding Speaker

Enclosure Type: Anti-Resonant, Internally Braced, Rear Ported 1"(25mm) HDF Cabinet；1“（25mm）Bracing

Product Weight: 185.6 lb / 84.2 kg each

Product Dimensions: H 83.5" x W 13.2" x D 13.8" / H 2120mm x W 335mm x D 351mm

Placement Location: Front L/R Speakers

Shipping Weight:  320.8 lb / 145.5 kg

Shipping Dimensions: L 88.2" x W 27.2" x H 27.8" / L 2240mm x W 690mm x H 705 mm

The A.F.G. cone technology, initially introduced in the Grandis series, makes a striking appearance in the all-new Grandis GR8F. This speaker stands out with its innovative multi-layer structure and outstanding acoustic properties. The incorporation of this cone lays a solid foundation for the loudspeaker's audio performance. In addition, the soft-dome midrange driver receives a specialized coating treatment; this carefully formulated layer serves as robust yet precise "armor," enhancing the driver's rigidity and accuracy. As a result, during music playback, the system delivers a sound quality that is natural and fluid, dynamically expressive, and remarkably lifelike—allowing listeners to grasp every subtle emotional nuance of a live performance.

Enhancing this technology, the "Saturn" tweeter plays a crucial role in achieving exceptional sound quality. With its unique diaphragm and phase bridge design, this tweeter showcases remarkable acoustic innovation. This sophisticated setup ensures that even at high volumes, the diaphragm's vibrations remain stable and orderly, while energy distribution maintains impressive symmetry. This effectively minimizes distortion and unwanted noise, delivering high frequencies with crystal-clear clarity and exquisite delicacy.

Equally remarkable is the tweeter in the Grandis series. At its core is a 1.1-inch "Saturn-dome" tweeter, whose surface has also been carefully treated with a special damping coating. This treatment bestows the tweeter with transformative characteristics: it not only enhances rigidity—allowing it to maintain stability during intense vibrations—but also optimizes its vibrational qualities, ensuring sound propagation is both accurate and orderly. With the addition of an asymmetrical waveguide faceplate design and a tweeter phase bridge optimized using advanced computer simulations, the system achieves a significant improvement in sound dispersion. This enhancement is particularly noticeable around the crossover point and within the ultra-high-frequency range, where sonic transitions occur with remarkable fluidity. The end result is a treble response that boasts crystalline clarity—more pure than a mountain spring—making even the smallest details and subtle nuances of the music easily discernible, and transporting listeners into an entirely new sonic experience.

One of the standout features of this sound system is its mid-range driver, which showcases a modern industrial design and utilizes a highly viscous damping coating process. This design serves as a protective suit for the driver, ensuring exceptional stability during high-intensity vibrations. By effectively isolating the driver from external acoustic interference, this method completely removes tonal coloration, allowing the sound to return to its purest and most authentic form. Whether it’s the soulful voice of a vocalist or the intricate sounds of musical instruments, the system provides a playback experience marked by precise accuracy and naturalness—making it feel as though every note is resonating right beside your ear.

On a technical level, the mid-range driver’s heart lies in its unique dome diaphragm—an element whose material composition has been refined through countless tests and adjustments to achieve outstanding performance. This specialized formula gives the diaphragm distinct acoustic properties, laying a robust foundation for exceptional sound quality. Additionally, the driver features a large surface-area dome design, complemented by two exposed lead wires. This setup not only presents a high-end audiophile appearance—highlighting its professional-grade quality—but also ensures optimal acoustic performance, rendering the mid-range frequencies rich, full-bodied, and intricately layered.

In designing the Grandis mid-bass speaker, Aperion Audio' engineers have demonstrated remarkable patience, professionalism, and perseverance, pouring significant effort into its development to deliver an exceptional sound quality experience. The R&D team dedicated considerable time to meticulously studying and successfully creating a unique sound basin known as the "A.F.G" woofer structure, which consists of three carefully chosen layers of materials.

This distinctive sound basin boasts a highly sophisticated structural design. The outermost layer is crafted from aluminum, featuring an ultra-thin oxide layer that provides excellent rigidity, effectively countering boundary vibrations and ensuring stability during operation, which is crucial for delivering precise sound quality. The middle layer is filled with acrylic foam, which provides good cushioning and flexibility. Acting like an elastic cushion, this layer enhances the Mid-Bass Woofer's flexibility, allowing it to expand and contract freely during vibrations while minimizing energy loss. Finally, the innermost layer is made of Fiberglass, known for its high tensile strength and significant elastic coefficient. This addition significantly boosts the speaker's sound performance, resulting in powerful, well-defined mid-bass and an immersive listening experience that captivates audiences with enticing mid- and low-frequency sounds.

The cabinet is expertly constructed from high-density fiberboard (HDF), a premium material that not only offers remarkable stability—serving as a robust fortress for the drivers—but also minimizes resonance to an impressive degree. This effectively reduces vibration-induced noise, resulting in a purer, cleaner sound. Thanks to this exceptional blend of high-quality materials, the cabinet's design philosophy and the driver units' work in perfect harmony; they enhance one another, laying the groundwork for outstanding audio performance.

The acoustically optimized curved profile design is a brilliant innovation, skillfully addressing edge diffraction issues and allowing sound to flow more smoothly and naturally. This design gives the speaker a striking look that stands out and conveys high-end luxury, while also feeling timeless and resistant to obsolescence.

The Grandis GR8F makes a lasting impression with its cabinet structure, which seamlessly merges acoustic performance with industrial design. To effectively harness the immense acoustic energy within the Grandis GR8F—and to prevent it from colliding chaotically within the enclosure—the enclosure's internal structure boasts a specialized design with extensive reinforcement. Furthermore, the thoughtful consideration of the front baffle's geometry—incorporating extensive testing on how different shapes affect sound propagation—and the strategic addition of internal bracing work together to eliminate internal standing waves. This attention to detail elevates the sound's purity and clarity even further.

When we shift our gaze to the bottom of the speaker, we notice an essential component; the terminal cup. This terminal cup features three pairs of extra-thick, bespoke gold-plated binding posts that stand out beautifully. The gleaming gold surface and elegant design come together to radiate a high-end aesthetic to match it's sound.

Notably, they also support Tri Wiring for sound separation. Operating it is a breeze; remove the gold connecting piece in the middle, allowing for easy independent connections of the tweeter, midrange, and bass speaker units to meet various audio configuration needs.

The Treble Mod feature allows users to reduce the treble response by 3 dB. This serves as a room correction feature for people with “live” rooms that have a large amount of reflective surfaces.

Located on the upper back of the speaker, our engineers integrated an ABS port tube. To achieve the optimal low-frequency enhancement, the R&D team undertook meticulous calculations and exhaustive testing regarding the port tube's travel length and opening size. After countless simulations and real-world assessments, they finally pinpointed the most effective parameters. These precise adjustments significantly improve the speaker's low-frequency response, resulting in a fuller and more powerful sound. Visually, the connection between the port tube and the back of the cabinet is flawlessly executed, aligning perfectly and appearing as if they are one seamless unit with almost no gap. This attention to detail showcases our craftsmanship, dedication and engineering, Highlighting that every aspect has been thoughtfully considered.

While right-angle speakers often convey a clear, clean, and robust impression; and are a favorite among many consumers. The engineers at Aperion sought something different, starting with the Verus series. They wanted to break away from the norm and innovate in their designs. This ambition led to the bold choice of a cabinet with a more pronounced slope, giving the speakers a fresh visual appeal.

In developing the Grandis Hi-Fi speaker series, Aperion prioritized the harmonious connection between visual aesthetics and sound experience. Compared to their right-angle counterparts, the lines of the arc-shaped speakers appear softer and more rounded, creating a visual that beautifully complements the warm, rich, and clear sound quality that the Grandis towers deliver. For those who seek a comfortable and inviting sensory experience, the Grandis flagship 8" tower speakers are undoubtedly an ideal choice.

After a lengthy and thorough process of refining the crossover components, our engineers successfully achieved a smoother, more neutral, and balanced frequency response across the board. The phase integration between the tweeter and midrange has seen significant improvement, resulting in a cleaner and more open sound in the critical transition areas.

The Grandis high-fidelity flagship speaker boasts a selection of our top-quality proprietary components, including high-grade silver foil capacitors that minimize dielectric loss and enhance sound purity. Our engineers have also tailored the internal wiring for stable and efficient signal transmission. Additionally, they have designed the crossover's PCB board in the signature Aperion red, serving not just as a visual marker but also as a testament to their commitment to outstanding sound quality, in their pursuit of perfection in material selection.

We have conducted extensive comparisons and tests, creating specialized silver foil capacitors for the Grandis series, which is designed for high volume listening. This ensures that the treble is both silky smooth and crystal clear, perfectly aligning with the desired characteristics of high-frequency sound.

This silver foil capacitor is crafted from a silver-nickel alloy, which provides it with outstanding high-frequency performance. It has proven its remarkable reliability in applications such as radio, radar, television, and various communication devices. In high-frequency circuits, these capacitors excel, offering unmatched fidelity and an improved signal-to-noise (SNR) ratio that allows every note to shine in its original form. Moreover, silver foil capacitors are known for their impressive longevity, ensuring long-term stability in sound quality output.

The carefully designed multi-stranded twisted wire inductor plays a crucial role in accurately reproducing the audio signal, leading to enhanced sound quality, reduced distortion, and minimized effects from high-frequency "skin effects". This is why we confidently incorporated this high-end, multi-stranded inductor design into the Grandis speaker series, aiming to elevate the overall listening experience further.

Non-inductive resistors stand out for their impressive design, which minimizes inductive reactance to extremely low levels, typically negligible. This thoughtful design helps eliminate signal distortion and energy loss in high-frequency circuits while ensuring a consistent frequency response. Additionally, these resistors are renowned for their high precision, excellent resistance to temperature fluctuations, and overall stability, all of which contribute to the reliable performance of speakers.

To protect the speaker's drivers from accidents, pets or curious fingers, the Grandis line sports a lightweight yet strong magnetic grille which can easily be removed when you want to show off your beautiful speakers to friends and family.

We designed and customized these outriggers to match the sound quality and beautiful looks of our Grandis HiFi Tower Speakers. This new design delivers better stabilization, enhanced acoustical isolation, and brings the Grandis HiFi Loudspeakers to the true audiophile realm.

We are excited to introduce a brand new gold-plated logo design this time around. This fresh look not only epitomizes the pinnacle of luxury and bespoke craftsmanship but also features an enlarged size that truly stands out. This enhancement makes the logo more striking and clearly reflects our high aspirations and expectations for the Grandis series. We envision it shining brightly in the market, just like this stunning new logo.

Before leaving the factory, the GR8F goes through a thorough assembly process and is then securely wrapped in thick, soft cushioning. This inner packaging effectively absorbs vibrations and shocks during transit, providing essential protection for the product. Next, it is placed inside a sturdy, custom-built wooden crate. This outer packaging is not only durable and strong but also includes an integrated pallet base, allowing personnel to easily move the unit with a manual pallet jack, greatly improving handling efficiency. This reliable packaging method ensures the product’s safety and integrity during long-distance transportation. When users receive the product, there is no need for additional assembly; they can simply unbox it, position it where they like, and start enjoying a high-quality audio experience right away.

To facilitate movement, we have pre-installed four lockable caster wheels on its base. This allows users to easily remove the unit from its packaging and move it to the desired location. The package also includes four aluminum spikes; once the product is in place, the casters can be replaced with these spikes. To do this, first lock the remaining three casters to prevent the unit from shifting. Then, with two people supporting the speaker—tilting it slightly to lift the corner where the spike is to be installed—simply unscrew the caster and screw in the spike. Repeat this process for the remaining corners.

Five (5) year warranty on cabinets, crossovers, and drivers, with lifetime customer support.

Grandis Manual