The PreSonus R65 Studio Monitor is a premium bi-amped studio monitor which delivers 150W (LF = 100W HF = 50W) of Class D power through a 6.5 inch Woven Kevlar LF driver and innovative AMT ribbon tweeter. Providing a wide throw with select vertical dispersion the R65 monitor optimizes the listening experience whilst the XLR TRS and RCA connections allow configuration with a range of gear. The R65 Studio Monitors also features Acoustic Space LF Driver and HP Filter controls for impressive acoustic optimization perfect for home commercial and broadcast studio applications. 6.5 Inch Woven Kevlar LF Driver Incorporating a 6.5 inch low frequency driver constructed from woven Kevlar the PreSonus R-Series Monitors offer consistent dispersion and a balanced frequency response. Finished with a custom coating and bi-amped for clear and seamless operation the LF driver is powered by a 100 watt class D amplifier perfect for any size control room. Additionally the large amplifier allows the R-Series monitors to deliver an open clear and less fatiguing listening experience. Air Motion Transformer The PreSonus R Series Monitors employ custom 6.8 inch2 Air Motion (AMT) tweeters which respond to even the most subtle waveforms and highest frequencies to deliver unparalleled audio quality. Producing transparent and hi-fidelity audio the R-Series monitors are perfect for commercial broadcast and home studio applications with their impressive sense of stereo space. Folded Kapton Tweeter Membrane Unlike conventional studio monitors which use fluid injected dome tweeters the PreSonus R-Series Monitors feature an extremely thin folded Kapton membrane with inlayed aluminium circuit which functions as the voice coil. This allows the tweeter to move at the same rate as the electrical current resulting in a quick response time to improve clarity and deliver superior transient response. Wide Lateral Dispersion The PreSonus R-Series Monitors produce a limited vertical dispersion to help reduce reflections from ceilings and surfaces whilst the wide lateral dispersion increases the audio “sweet spot” allowing the R-Series Monitors to be optimized for a wider listening range. Acoustic Tuning Controls With Acoustic Space HF Driver and HP Filter controls the R-Series Monitors can be tweaked and optimized to any mixing environment making them perfect for both acoustically treated and untreated rooms. Each with four modes the acoustic space switch helps compensate for bass reflections the HF Driver control boosts or cuts high frequencies and the HP filter control is perfect for integrating a subwoofer into your studio set up. Features 2-Way Active AMT Design Provides Articulate High-Frequency Response and Wide Stereo Imaging Custom Designed 6.8 Inch AMT Ribbon Tweeter Responds to Subtlest Waveforms and Highest Frequencies 6.5 Inch Kevlar LF Drivers Provide Transparent Mid and Low Frequency Reproduction for a Clean Sound and Punchy Bass Balanced XLR and 1/4 inch TRS Inputs plus Unbalanced RCA Inputs for Flexible Connectivity Acoustic Space Settings Compensate for Room Placement (Linear -1.5 dB -3 dB -6 dB) Bi-amped 150W RMS (LF = 100W HF = 50W) Class D Power Amplifier RF Interference Output Current Limiting Over Temperature and Subsonic Filter Protection Energy Conservation Mode External Mains Fuse Internal Power Supply with IEC Connector Specifications Inputs: 1 x XLR (Balanced) 1 x 1/4″ TRS (Balanced) 1 x RCA (Unbalanced) LF Power Output: 100 Watts (Class D) HF Power Output: 50 Watts (Class D) LF Driver: 6.5″ Kevlar HF Driver: AMT Diaphragm: 6.8 Inch2 (4400 mm2) Equiv. Diaphragm: 3 Inch (75 mm) Frequency Response: 45 Hz – 22 kHz Crossover Frequency: 2.7 kHz Input Impedance: 20 k Ohms (Balanced) 10 k Ohms (Unbalanced) SPL (Peak): 104 dB SNR (Typical / A-Weighted): > 100 dB Volume Range: A-Type Taper HF Driver Control: Linear +1 dB -3 dB -6 dB Highpass Filter: Linear 60 Hz 80 Hz 100 Hz Acoustic Space: Linear -1.5 dB -3 dB -6 dB Energy Conservation Mode: On/Off/Query Protection: RF Interference Output-Current Limiting Over-Temp Subsonic Filter External Mains Fuse Cabinet: Vinyl-Laminated Medium Density Fiberboard Height: 13″ / 328 mm Width: 8″ / 203 mm Depth: 10.3″ / 261 mm Weight: 6.65 Kg