AC Tuning Stick MkIII By Akiko Audio

The elegant design of the YB Mk II, is a standout product from the renowned Estelon collection. Emphasizing clean lines and sleek surfaces, this model showcases a unique Y shape, inspired by its asymmetric driver positioning. Unlike the organic curves of the X-Series, the YB Mk II exemplifies the “form follows function” philosophy, making it a true masterpiece in modern design. The newly upgraded YB Mk II features enhanced crossover and cabling, all housed in a sophisticated marble-based composite cabinet. This design ensures an immersive listening experience, combining technical brilliance with the emotional depth of high-quality sound.

The Estelon YB Mk II loudspeakers utilize a sealed box design, offering a more compact alternative to the bass reflex concept and easing room positioning requirements. Experience nimble, accurate bass with authentic timbre, delivering exceptional sound quality in any setting. Experience the pinnacle of audio excellence with a loudspeaker crafted from a unique marble-based composite material, developed through years of research and rigorous testing. This advanced material, combined with special molding technology, ensures the creation of cabinets with intricate surface geometry both inside and out. The result is an extremely rigid, highly dense, and resonant-free cabinet that offers exceptional internal damping and superior acoustical control. Indulge in unparalleled sound quality and sophisticated design with these expertly engineered loudspeakers.

Discover superior sound clarity with the 25 mm (1 inch) beryllium “Illuminator” tweeter from Scan-Speak. This exceptionally stiff and lightweight dome delivers remarkably low distortion, high sensitivity, and almost perfect impulse response. Enjoy pure, precise audio as the break-up modes remain well beyond the range of human hearing.

Enhance your audio experience with the Scan-Speak “Revelator” 148 mm (5.8 inches) mid-woofer, featuring a sliced paper cone design. Each slice is meticulously filled with a proprietary damping glue, effectively reducing and modifying break-up modes in the diaphragm. This innovative construction ensures a flat frequency response and minimal distortion in the mid-range frequencies, delivering crystal-clear sound quality.

Experience exceptional bass precision with the 220 mm (8.6 inches) SEAS woofer. Its lightweight and stiff aluminum cone ensures powerful, accurate bass performance. Paired with a low-loss rubber surround, this woofer eliminates the common resonance and distortion found in soft cones, delivering pure, undistorted sound.

The combination of heavy and rigid marble-based material, elegantly curved shapes, and internal bracing suppresses cabinet resonances to nearly non-existent levels. This exceptional design ensures that the drivers can perform at their absolute best, providing you with unmatched sound quality.

Experience superior sound quality with a mid-woofer and tweeter driver chamber that’s expertly designed to eliminate unwanted resonances. Engineered with the same precision as the woofer chamber, it ensures clear, distortion-free audio through optimal dampening and isolation. Designed with an angled bass driver, these speakers optimize sound performance even in smaller rooms where sidewall reflections can color the audio and disrupt the stereo image. By angling the woofer, reflections are minimized, resulting in cleaner sound and more consistent bass propagation. The left and right speakers mirror each other for a balanced and immersive audio experience.

Featuring an innovative asymmetrical design, the Estelon Model YB speakers blend functionality with elegance. Crafted from a marble-based composite, the cabinets are sculpted to enhance sound quality. The strategic placement of the drivers—including the mid-woofer above the beryllium driver—reduces floor reflections, while the wider base supports the aluminum-diaphragm bass driver. Angled towards each other, these speakers can be positioned near walls in smaller rooms without sacrificing sound clarity or experiencing overlap.

Stereonet
“To my ears at least, there is nothing entry-level about the YB II except its position in the Estelon product range. It’s an outstanding loudspeaker that proves that great looks and performance can be combined in a single package. Its strengths are a highly musical tone that does not sacrifice detail and other niceties that we audiophiles crave for. It is certainly not cheap, but sadly great things never are.”

https://www.stereonet.com/reviews/estelon-yb-mk-ii-floorstanding-loudspeakers-review

Hifiplus
“The YB shows a different side to the voice of Estelon. It certainly demands that the accompanying equipment be up to scratch and that the installation be thoroughly sorted. It strikes me that the YB should find a wide, appreciative audience from those who demand serious bandwidth and who have mid to largish rooms right down to those, like me, who have smaller listening rooms and generally find themselves drawn to smaller, high-end stand mounted designs. Yes, I place articulation and balance highly on my list of requirements, but the YB fulfils those demands and yet it has this sense of scale plus an acoustically controllable, brooding bass performance that works really nicely in smaller rooms. Its tall, slender, twisting cabinet has a relatively low-impact, too. So, after five years of making speakers, Estelon has produced a speaker that, while certainly different to their existing models, is still very musically interesting. You should seek it out.”

https://hifiplus.com/articles/estelon-yb-floorstanding-loudspeaker/

Soundstageultra
“I began this review by musing about the Estelon YBs’ soundstaging — about how they projected an image. Now I’m drawn back to tell you more about how this speaker combined its varied talents — that deep, tight, slightly rich bass; that expressive midrange; that unfatiguing, well-controlled treble — into an extremely satisfying musical whole.”

https://www.soundstageultra.com/index.php/equipment-menu/956-estelon-yb-loudspeakers

• Type : 3-way passive speaker, bass reflex
• Woofer : 220 mm (8 inches) SEAS, aluminium cone
• Mid-woofer : 148 mm (5.8 inches) Scan-Speak, sliced paper cone
• Tweeter : 25 mm (1 inch) Scan-Speak, beryllium dome
• Frequency Response : 30-40 000 Hz
• Sensitivity : 86 dB / 2.83 V
• Internal Wiring : Kubala-Sosna
• Power Rating : 150 W
• Nominal Impedance : 6 ? (min 3 ? at 52 Hz)
• Minimal Amplifier Power : 30 W
• Cabinet Material : Marble based composite
• Dimensions : Height: 1260 mm (49.5″), Width: 332 mm (13″), Depth: 394 mm (15.5″)
• Net Weight : 45 kg (99 lbs.) per piece
• Recommended Room Size : 16-45 m² (170-480 ft²)