EgglestonWorks Nico EVO

The EgglestonWorks Nico Evo (also known as Nico Evolution) is a high-end two-way bookshelf loudspeaker from American manufacturer EgglestonWorks, designed for music lovers who seek true midrange, clarity, and dynamic performance. With precise acoustic engineering and a robust cabinet structure, it delivers resolution and musicality that surpass other bookshelf loudspeakers in its price range, making it an ideal choice for entering high-end home audio systems.

Product Information and Design Features

The Nico Evo is a two-way, rear-slot bass-reflex bookshelf loudspeaker, recommended for use with a dedicated stand. The cabinet utilizes a thick MDF and HDF composite structure, reinforced internally with aluminum front baffle elements, providing high rigidity and excellent damping. The front baffle is slightly tilted to aid in time alignment, ensuring more coherent sound reproduction from the tweeter and mid-woofer units.

The loudspeaker dimensions are approximately 48 × 21 × 40 cm (H × W × D), with a weight of about 12.7–13 kg per speaker. It is available in various high-gloss automotive finishes, including white, silver, black, or custom colors. The speakers are handcrafted in Memphis, Tennessee, USA.

Technology and Materials

• Driver Configuration: 1 × 25mm soft dome tweeter (silk diaphragm) + 1 × 150mm (approx. 6-inch) polypropylene composite mid-woofer (custom Morel)
• Crossover Point: 2.3 kHz
• Crossover Design: Fourth-order Linkwitz-Riley acoustic slope (second-order electrical circuit)
• Frequency Response: Approximately 38 Hz – 24/25 kHz (in-room usable extension)
• Sensitivity: 87 dB (1W/1m)
• Impedance: Nominal 8 Ω (minimum approx. 6.8 Ω)
• Recommended Power: Minimum 50W, compatible with higher power amplifiers
• Bass Design: Rear-firing slot port
• Binding Posts: Single-wire connection (Cardas copper binding posts)
• Cabinet: Thick-walled MDF/HDF + internal bracing structure

The core technical strengths of the Nico Evo lie in its precise crossover design and high-rigidity cabinet, which effectively control resonance and ensure natural integration between the mid-woofer and tweeter. The rear-slot bass-reflex design helps enhance bass control and extension while minimizing cabinet interference.

Sound Performance

The Nico Evo's sound signature is clear, precise, and musical. Its midrange performance is particularly outstanding, rendering vocals and instruments with realistic texture and rich detail without harshness; the treble is transparent and refined, with the smooth quality characteristic of a silk dome tweeter; the bass, for a bookshelf loudspeaker, is solid, fast, and controlled. While it may not offer the deep quantity of large floorstanding speakers, its rhythm and impact are excellent.

The soundstage imaging is precise and layered, with the speakers easily "disappearing" into the room, creating an excellent sense of presence and intimacy. Its dynamic range is wide, with little compression or distortion even at higher volumes, making it suitable for various music genres, especially vocals, jazz, classical, and recordings that demand high resolution.

User Reviews

Professional media have given positive reviews of the Nico Evo. SoundStage! Ultra praised its "remarkably vivid and detailed midrange with superb vocal reproduction, well-controlled and impactful bass, and precise imaging." Hi-Fi+ noted that it "offers clear imaging, excellent speed and coherence, delivering the intimacy and musicality characteristic of bookshelf speakers. While the bass isn't as deep as floorstanders, it is of high quality and well-defined rhythmically." Reviews from Tone Publications and others also stated that it is "moderately sensitive and easy to drive, exceeding expectations for sound performance in its price range."

The EgglestonWorks Nico Evo is suitable for users who desire high-end sound performance from a bookshelf loudspeaker. It excels in midrange realism, clarity, and dynamics, delivering a nuanced and engaging musical experience for small to medium-sized listening spaces, making it an excellent bookshelf speaker that combines technical prowess with musical expression.