EVERYTHING YOU NEED, NOTHING YOU DON'T. The PreSonus Quantum ES Ultimate Bundle is your one stop shop for professional studio-quality recording. Featuring the high-performance Quantum ES 2 USB-C Audio Interface with all-new MAX-HD mic preamps, a Studio One Pro perpetual license a pair of powerful Eris 3.5 Studio Monitors packed with low-end punch, a pair of HD9 dynamic high-definition headphones, and an exceptionally clear M9 cardioid condenser microphone, the PreSonus Quantum ES Ultimate Bundle gives you everything you need to create like a pro. PreSonus Quantum ES 2 USB-C Audio Interface 2x2, 24-bit / 192 kHz USB-C Audio Interface High Performance Signal Flow Custom low-latency drivers and low-noise converters. All-New MAX-HD Mic Preamps The culmination of 30 years of innovation, our rigorously redesigned preamps feature digitally-controlled analog with 75 dB of gain range. Co-Developed with Fender Front-facing instrument input engineered for guitarists by industry-leading experts. Auto Gain Dial in recording-ready levels, hassle-free. Universal Control App Full control and metering from your mobile device, desktop, or tablet. Studio One Pro DAW Recording Software License Included Studio One Pro software license PreSonus Eris 3.5 Studio Monitors 3.5-inch, woven-composite, low-frequency driver 1-inch, ultra-low mass, silk-dome, high-frequency driver 50W, Class AB dual amplification 80 Hz to 20 kHz frequency response 98 dB SPL (Peak, @ 1 meter) High- and low-frequency Acoustic Tuning controls Balanced, -inch TRS inputs; unbalanced, -inch stereo and RCA inputs; and integrated stereo headphone amplifier with front-panel -inch output Protection: RF interference, output-current limiting, over-temperature, turn-on/off, transient, subsonic filter Power Saver mode (engages after 40 minutes) Comes with speaker wire, -inch TRS to stereo RCA cable, and stereo -inch TRS to -inch TRS cable PreSonus M9 Microphone Exceptionally clear cardioid condenser microphone Vintage-inspired sound Satin nickel finish Die cast zinc housing 18mm pure aluminum diaphragm 20Hz-20kHz frequency response Shock mount PreSonus HD9 Professional Monitoring Headphones Dynamic high-definition headphones with high-resolution drivers Precision-tuned acoustic chamber Extended bass response Comfortable and long-lasting ear pads Lightweight and collapsible