Quantum ES Ultimate Bundle
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 software license and 12 months of access to tools, extras, add-ons, and more with Studio One Pro , 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.

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, ¼-inch TRS inputs; unbalanced, ⅛-inch stereo and RCA inputs; and integrated stereo headphone amplifier with front-panel ⅛-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, ⅛-inch TRS to stereo RCA cable, and stereo ⅛-inch TRS to ⅛-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
Specifications
Product Name | Quantum ES 2 Ultimate Bundle, Black |
Series | Quantum |
Color | Black |
Connectivity | USB-C® |
Headphone Jack | One - 1/4" TRS Female Stereo |
Input Impedance | 10 kΩ |
Phantom Power | +48 VDC |
Phantom Power Requirements | 48 volt |
Voltage Requirements | 100-240 VAC, 50-60 Hz |
Audio Controls | Volume High Frequency (±6 dB, center 10 kHz, continuously variable) Low Frequency (±6 dB, center 100 Hz, continuously variable) |
Cabinet Material | Vinyl-Laminated, Medium-Density Fiberboard |
Driver Type | 45 mm, Neodymium |
HF Transducers | 1” Ultra Low Mass, Silk Dome Tweeter |
LF Transducers | 3.5" Woven Glass Fiber Composite |
Microphone Element | 18mm pure aluminum diaphragm |
Microphone Types | Condenser |
Monitor Inputs | 1- Stereo 1/8", 2 - Balanced 1/4” TRS, 2 - Unbalanced RCA |
Power Amplifier Type | Class AB |
Instrument Inputs Dynamic Range | 111 dB (A-Weighted, Minimum Gain) |
Instrument Inputs Frequency Response | 20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Reference 1 kHz) |
Instrument Inputs Gain Range | 75 dB |
Instrument Inputs Maximum Level | +15 dBu (Unbalanced, Minimum Gain) |
Line Inputs Dynamic Range | 114 dB (A-Weighted, Minimum Gain) |
Line Inputs Frequency Response | 20 Hz to 20 kHz, +/- 0.1 dB (Unity Gain, Reference 1 kHz) |
Line Inputs Gain Range | +/- 10 dB |
Line Inputs Impedance | 10K Ohms |
Line Inputs Maximum Level | +15 dBu (Balanced, Minimum Gain) |
Line Inputs Total Harmonic Distortion | 0.001% (1 kHz, Minimum Gain) |
Microphone Input Connection Type | XLR Female (Combo), Balanced |
Microphone Preamp Dynamic Range | 113 dB (A-Weighted, Minimum Gain) |
Microphone Preamp Equivalent Input Noise | -129 dBu (Maximum Gain, 150 Ohms, 22 kHz BW, A-Weighted) |
Microphone Preamp Frequency Response | 20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Reference 1 kHz) |
Microphone Preamp Gain Control Range | 75 dB |
Microphone Preamp Input Impedance | 1600 Ohms |
Microphone Preamp Maximum Input Level | +14 dBu (Balanced, Minimum Gain) |
Microphone Preamp Total Harmonic Distortion | 0.001% (1 kHz, Minimum Gain) |
Headphone Outputs Dynamic Range | 111 dB (A-Weighted) |
Headphone Outputs Frequency Response | 20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Reference 1 kHz) |
Headphone Outputs Impedance Working Range | 22 Ohms |
Headphone Outputs Maximum Output | 7.5 dBu (50 Ohms) |
Headphone Outputs Total Harmonic Distortion | 0.02% (1 kHz) |
Main & Line Outputs Dynamic Range | 117 dB (A-Weighted) |
Main & Line Outputs Frequency Response | 20 Hz to 20 kHz, +/- 0.1 dB (Unity Gain, Reference 1 kHz) |
Main & Line Outputs Maximum Level | +15 dBu (Balanced) |
Main & Line Outputs Output Impedance | 51 Ohms |
Main & Line Outputs Total Harmonic Distortion | 0.001% (1 kHz, +4 dBu) |
Main Outputs Connection Type | 1/4" TRS Female |
Digital Audio Bit Depth | 24-bit |
Digital Audio Dynamic Range | 120 dB |
Headphone Frequency Response | 10 Hz to 26 kHz |
Headphone Maximum Power | 1800 mW |
Headphone Rated Impedance | 40Ω |
Headphone Sensitivity | 98 dB SPL (1 mW) |
Microphone Frequency Response | 20 Hz to 20 kHz |
Microphone Sensitivity | -38dB±2dB (0dB=1V/Pa at 1kHz) |
Peak SPL | 98 dB (@ 1 meter) |
Polar Pattern | Cardioid |
Crossover Frequency | 2.8 kHz |
Supported Sample Rates | 44.1, 48, 88.2, 96, 176.4, 192 (kHz) |
Product Dimensions | 11.9” (30.23 cm) Depth, 16" (406 mm) Height, 15.8" (40.2 cm) Width |
Power Cable | IEC |
Protections | RF Interference, Output-Current Limiting, Over-Temperature, Turn-On/Off Transient, Subsonic Filter |