The Amphion Two18 is a passive studio monitor pair that has become a go‑to choice for many A‑list mix and mastering engineers. With its dual 6.5" drivers, 1" titanium tweeter and passive radiator design, the Two18 offers a neutral, highly resolving presentation that gives you the confidence your work will translate accurately outside the studio.
 
Each cabinet combines two custom 6.5" aluminium low‑/mid drivers with a 1" titanium dome tweeter seated in a high‑density Corian waveguide. The dual LF/MF drivers operate in perfect phase alignment around a low 1600 Hz crossover point, so the critical midrange remains cohesive and time‑aligned while the tweeter focuses on speed and detail in the top end. This configuration, together with Amphion’s controlled‑dispersion waveguide, delivers a wide, even sweet spot, pinpoint‑accurate imaging and a deep, three‑dimensional soundstage that makes it easy to judge placement, depth and reverb tails in a mix.
 
Instead of ports, the Two18 uses a sealed enclosure with dual rear passive radiators to extend the low end down to about 39 Hz (±3 dB). The result is deep yet tight and well‑controlled bass with no port chuffing or overhang, so kick and bass feel solid but never smeared or hyped. With a nominal impedance of 4 ohms, sensitivity around 89 dB (2.83 V/1 m) and a recommended amplifier power range of 50–200 W per speaker, the Two18 performs best with a robust, high‑quality power amp such as Amphion’s Amp700, but will also partner well with other clean, high‑current amplifiers.
In real‑world use, the Two18 Pair works equally well as a larger nearfield or compact midfield system, depending on room size and listening distance. Its natural, un‑hyped tonality and excellent phase behaviour let you work long hours without fatigue while still exposing subtle issues in balance, EQ and dynamics. Whether you are composing, tracking, mixing dense modern productions or refining final masters, the Two18 gives you a trustworthy, musical and highly revealing reference that consistently translates to headphones, hi‑fi systems and big PA rigs.