Amphion One18 Passive Nearfield Studio Monitor: The Industry All-Rounder

The Amphion One18 is a trusted studio staple and the most widely utilized model in the Amphion lineup. Renowned for its revealing, flat, yet remarkably pleasant character, the One18 is a versatile workhorse capable of handling any sound-making task. Whether you are tracking, mixing, or mastering, its balanced performance across a wide variety of rooms and setups has made it the go-to nearfield monitor for professionals worldwide.

Engineering Excellence & Acoustic Purity

Amphion’s design philosophy prioritizes natural acoustic performance over digital correction, ensuring your signal remains pure and your decisions remain accurate:

• Point-Source Imaging: By setting the crossover point at a low 1600 Hz, the One18 operates in a point-source manner. This provides industry-leading phase coherence and pinpoint imaging, allowing you to place sound accurately in the width, height, and depth of your mix.
• Time-Aligned Drivers: The proprietary waveguide aligns the voice coils of the titanium tweeter and the aluminum woofer. This physical alignment ensures that all frequencies reach your ears simultaneously, preserving the timing and impact of your transients.
• DSP-Free Signal Path: The One18 relies on advanced acoustic design rather than internal digital processing. This electrical purity eliminates latency and clutter, allowing you to fully leverage the power of your outboard gear and high-end converters.
• Passive Radiator Performance: Instead of using standard reflex ports that can smear bass frequencies, the One18 features a carefully tuned passive radiator. This results in natural, even bass energy transfer that interacts more predictably with your room.

Trusted Results in Any Environment

The One18 is built for the modern engineer who needs reliable results under pressure:

• Industry-Leading Translation: Trusting your monitors is essential for productivity. The One18 ensures that the balance and EQ decisions you make in the studio translate accurately to everything from car stereos to high-end home systems.
• High Performance at Low Volumes: Maintain critical detail and memory of the frequency spectrum even at lower listening levels. This makes the One18 an excellent choice for long sessions and late-night mixing.
• Broad Sweet Spot: Exceptional dispersion characteristics mean that your listening experience remains consistent even if you move away from the center seat—perfect for client playback or collaborative sessions.

Technical Specifications

• Operating Principle: Two-way, passive radiator 
• Drivers: 1″ titanium tweeter, 6½” aluminum woofer 
• Crossover Point: 1600 Hz
• Impedance: 8 Ω 
• Sensitivity: 85 dB @ 2.83V/1m 
• Frequency Response: 45 – 20,000 Hz +/-3dB
• Power Recommendation: 100 – 350 W 
• Dimensions (H x W x D): 380 x 190 x 305 mm (14.96″ x 7.5″ x 12″)
• Weight: 10 kg (22 lbs)
• Manufacturing: Handmade in Finland