The R Series R65 AMT Monitor from PreSonus features a custom 6.8in2 Air Motion Transformer (AMT) tweeter that responds to subtle waveforms and high-frequencies. This allows you to hear the air and the greater sense of space that is characteristic of audiophile recordings. The R65's transparent and accurate sound makes it great for use in both commercial and home recording studios as well as broadcast and post-production environments.

In order to dampen resonance peaks at higher frequencies, conventional dome tweeters are injected with fluid to raise their mass, sacrificing transient response time. By contrast, the AMT tweeter in the R65 uses a thin, folded Kapton membrane (< 0.01 mm) with an inlaid aluminium circuit functioning as the voice coil, allowing the tweeter to move at the same instant as the electric current. The resulting reactive response time provides marked clarity and better transient reproduction.

Unlike a traditional 1" dome tweeter, an unfolded AMT tweeter diaphragm provides up to thirteen times with the projection area.

The R65 provides a wide lateral dispersion and very limited vertical dispersion. The narrow vertical dispersion helps to reduce reflections from the ceiling and desktop that can cause phase coherence issues. The broad, even horizontal dispersion creates a wide sweet spot. Because it is less subject to room-anomaly interference, the R65 reacts more predictably and sounds more consistent from room to room.

The R65 utilizes a 6.5" custom-coated, woven Kevlar, low-frequency driver. This rigid cone maintains a more consistent dispersion pattern across its frequency response range. Bi-amped and driven by a 150W Class D amplifier, this monitor delivers an open, clear, and less fatiguing listening experience.