The culmination of nearly 30 years of design experience, the PreSonus Quantum ES 4 is a 4x4 USB-C desktop audio interface ideal for producers, musicians, and creators looking for high-fidelity audio for the studio or live onstage. The ES 4 features four high-definition MAX-HD mic preamps with +75 dB of gain, ideally suited for today's most popular microphones. Guitarists and bassists will love the front-facing instrument inputs, which were codeveloped with Fender engineers. High-performance 24-bit / 192 kHz converters let you hear and capture audio with stunning clarity. Use the Quantum ES 4 to record to a Mac/Windows computer or on your iOS/Android phone or tablet.
PreSonus QUANTUM ES4 Specs
Key Specs
| Channels of I/O | 4 Inputs / 4 Outputs |
| Maximum Sampling Rate | 192 kHz / 24-Bit |
| Number of Microphone Inputs | 4 |
| Analog Audio I/O | 4x Combo XLR-1/4" TRS Balanced Mic/Line Input 2x 1/4" TS Hi-Z Input 4x 1/4" TRS Balanced Line/Monitor Output 2x 1/4" TRS Headphone Output |
| Digital Audio I/O | No |
| Host Connection | USB-C |
| OS Compatibility | macOS Windows |
| Power Requirements | USB Bus Power, USB Power Adapter (Not Included) |
| Channels of I/O | 4 Inputs / 4 Outputs |
| Built-In DSP | No |
| Maximum Sampling Rate | 192 kHz / 24-Bit |
| Number of Microphone Inputs | 4 |
| Built-In Microphone | No |
| Input Level Adjustment | Knob |
Signal Processing
| Pad | No |
| Gain/Trim Range | Mic Inputs: 75 dB Hi-Z Inputs: 75 dB Line Inputs: -10 dB to +10 dB |
| High-Pass Filter | No |
| Solo/Mute | Mute per Master |
Connectivity
| Analog Audio I/O | 4x Combo XLR-1/4" TRS Balanced Mic/Line Input 2x 1/4" TS Hi-Z Input 4x 1/4" TRS Balanced Line/Monitor Output 2x 1/4" TRS Headphone Output |
| Phantom Power | 48 V, Selectable On/Off |
| Digital Audio I/O | No |
| Host Connection | USB-C |
| Host Connection Protocol | Not Specified by Manufacturer |
| USB (Non-Host) | 1x USB-C (Power Input) |
| Sync I/O | No |
| Network I/O | No |
| MIDI I/O | 1x 1/8" / 3.5 mm TRS Type-B Input 1x 1/8" / 3.5 mm TRS Type-B Output |
| Expansion Slots | No |
| Wireless | No |
Performance
| Frequency Response | XLR Mic Inputs: 20 Hz to 20 kHz ±0.2 dB 1/4" Hi-Z Inputs: 20 Hz to 20 kHz ±0.2 dB Combo XLR-1/4" Line Inputs: 20 Hz to 20 kHz ±0.1 dB 1/4" Line Outputs: 20 Hz to 20 kHz ±0.1 dB 1/4" Headphone Outputs: 20 Hz to 20 kHz ±0.2 dB |
| Maximum Input Level | XLR Mic Inputs: +14 dBu (Balanced, Minimum Gain) 1/4" Hi-Z Inputs: +15 dBu (Unbalanced, Minimum Gain) Combo XLR-1/4" Line Inputs: +15 dBu (Balanced, Minimum Gain) |
| Maximum Output Level | 1/4" Line Outputs: +15 dBu (Balanced) 1/4" Headphone Outputs: 7.5 dBu (at 50 Ohms) |
| Impedance | Mic Inputs: 1600 Ohms Hi-Z Inputs: 1 Megohm Line Inputs: 10 Kilohms Line Outputs: 51 Ohms Headphone Outputs: 22 Ohms |
| Dynamic Range | Mic Inputs: 113 dBA Hi-Z Inputs: 111 dBA Line Inputs: 114 dBA Line Outputs: 117 dBA Headphone Outputs: 111 dBA Digital: 120 dB |
| THD | Mic Inputs: 0.001% (1 kHz, Minimum Gain) Hi-Z: 0.002% (1 kHz, Minimum Gain) Line: 0.001% (1 kHz, Minimum Gain) Line Outputs: 0.001% (1 kHz, +4 dBu) Headphone Outputs: 0.02% (1 kHz) |
| EIN | -129 dBu (Maximum Gain, 150 Ohms, 22 kHz BW, A-Weighted) |
Digital Audio
| Sample Rates | Up to 192 kHz |
| Sample Rate Conversion | No |
| Bit Depths | 24-Bit |
| Sync Sources | Internal |
Audio Storage & Playback
| Media/Memory Card Slot | No |
Compatibility
| OS Compatibility | macOS Windows |
| Mobile App Compatible | Yes: Android & iOS Functionality: Adjust Settings, Remote Control |
Power
| Power Requirements | USB Bus Power, USB Power Adapter (Not Included) |
Physical
| Dimensions | 8.4 x 6.2 x 1.9" / 21.3 x 15.7 x 4.8 cm |
| Weight | 1.8 lb / 0.8 kg |
Packaging Info
| Package Weight | 3.755 lb |
| Box Dimensions (LxWxH) | 12.2 x 9.5 x 4" |
In the Box
- PreSonus Quantum ES 4 USB-C Audio Interface
- USB-C to USB-C Cable (5')
- 2-Year Manufacturer Warranty
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