Quantum ES4 Recording Interface

The Culmination Of 30 Years Of Innovation

The ES 4 features four newly redesigned high-definition MAXHD mic preamps with +75 dB of gain – making it ideally suited for today’s most popular microphones. Guitarists and bassists will love the instrument inputs, which were co-developed with Fender engineers. An Auto Gain button sets the perfect gain level for your microphones and instruments, while an illuminated push encoder provides flexible control over gain level and output volume. And bright and responsive LED metering provides easy visual feedback for your inputs and outputs, making it great for self-produced recording.

High Performance Signal Flow

Our custom low-latency driver provides exceptionally low audio latencies when recording, and high-performance converters complete the front end to ensure that you

sound your best throughout the entire signal chain.

All-New MAX-HD Mic Preamps

The Quantum ES 4 features four newly designed mic preamps with +75 dB of gain. Our high-definition MAX-HD preamps are transparent, low-noise, and digitally-controlled analog, making them ideally suited to today’s most popular microphones.

Co-Developed With Fender®

Built by the best ears in the business, guitarists and bassists will love the instrument input co-developed with Fender engineers – industry experts who designed them specifically for guitar and bass. Professional Recording Software Included Leap into 6 months of Studio One+ with access to Studio One Professional Edition, add-ons, and more.

Auto Gain

An Auto Gain button sets the perfect gain level for your microphones

and instruments, so you get the perfect take every time.

Universal Control App

Quantum works on any mobile or desktop device, so you’re ready to record whenever inspiration strikes – whether on your phone, tablet, or in your home studio. Critical preamp functions like preamp gain, phantom power, and more can be controlled with the Quantum ES 4’s top panel, or right from Studio One and the Universal Control app, so you can dial in the perfect gain staging without looking away from your recording session.

Features

• 4 x 4, 24-bit / 192 kHz USB-C Audio Interface
• High-performance converters let you hear and capture audio with stunning clarity and fidelity.
• Custom low-latency driver provides exceptionally low audio latencies when recording.
• All-new, next-generation PreSonus MAX-HD preamp design provides transparency and accuracy across the frequency range with +75 dB of gain to maximize the performance for a wide range of today’s most popular microphones for modern recording and broadcast.
• Auto Gain button sets the perfect gain level for your microphones and instruments, so you get the perfect take every time.
• Control your Quantum ES right from Studio One and the Universal Control app, in addition to hardware, so you can adjust preamp gain, toggle phantom power, adjust channel settings, and more without looking away from your recording session. Perfect for dialing in optimal gain staging.
• Bright and responsive LED metering lets you keep an eye on your input and output meters, perfect when recording alone.
• 2 balanced ¼-inch TRS main outputs plus 2 balanced ¼-inch TRS line outputs and 2 high-power headphone outputs for flexible monitoring. And built-in speaker switching lets you check your mix on multiple sets of studio monitors.
• Loopback audio makes creating monitor and streaming mixes quick and easy

Specifications

Inputs and Outputs

• Microphone Inputs 4
• Guitar Inputs 2
• Line Inputs 4
• Line Outputs (DC coupled) 4
• Headphone Outputs 2
• USB-C ports 1
• Aux power ports 1
• AD / DA Conversion
• Supported Sample Rates 44.1, 48, 88.2, 96, 176.4, 192
• Bit Depth 24

AnalogI/O

• Inputs
• Microphone (CH 1 - 4)
• Connector Type 4x Combo-style, XLR / TRS
• Max Input +14 dBu (balanced, minimum gain)
• Gain Range 0 dB to +75 dB
• Frequency Response 20 Hz to 20 kHz, +/- 0.2 dB
• (unity gain, reference 1 kHz)
• Dynamic Range 113 dB (A-weighted, minimum gain)
• THD+ N 0.001% (1 kHz, minimum gain)
• EIN -129 dBu (max gain, 150 Ohms,
• 22 kHz BW, A-weighted)
• Input Impedance 1600 Ohms
• Line In (CH 1 - 4)
• Connector Type 4x Combo-style, XLR / TRS
• Max input level +15 dBu (balanced, minimum gain)
• Frequency Response 20 Hz to 20 kHz, +/- 0.1 dB
• (unity gain, reference 1 kHz)
• Dynamic Range 114 dB (A-weighted, minimum gain)
• THD + N 0.001% (1 kHz, minimum gain)
• Input Impedance 10K Ohms
• Digital Trim -10 to +10 dB
• Instrument In (Ch 1-2)
• Connector Type 2 x ¼-inch Female
• Gain Range -7 dB to +68 dB
• Max input level +15 dBu (unbalanced, minimum gain)
• Frequency Response 20 Hz to 20 kHz, +/- 0.2 dB
• (unity gain, reference 1 kHz)
• Dynamic Range 111 dB (A-weighted, minimum gain)
• THD + N 0.002% (1 kHz, minimum gain)
• Input Impedance 1M Ohms
• Outputs
• Main Out (Ch 1 - 2)
• Connector Type 2x ¼-inch Female, TRS
• Max Output Level +15 dBu (Balanced)
• Frequency Response 20 Hz to 20 kHz, +/- 0.1 dB
• (unity gain, reference 1 kHz)
• Dynamic Range 117 dB (A-weighted)
• THD + N 0.001% (1 kHz, +4 dBu)
• Output Impedance 51 Ohms
• Trim Range -inf dB to 0 dB
• Line Out (Ch 3-4)
• Connector Type 2x ¼-inch Female, TRS
• Max Output Level +15 dBu (Balanced)
• Frequency Response 20 Hz to 20 kHz, +/- 0.1 dB
• (unity gain, reference 1 kHz)
• Dynamic Range 117 dB (A-weighted)
• THD + N 0.001% (1 kHz, +4 dBu)
• Output Impedance 51 Ohms
• Trim Range -inf dB to 0 dB
• Headphone Out (1-2)
• Connector Type 2x ¼-inch Female, TRS Stereo
• Max Output Level 7.5 dBu (50 Ohms)
• Frequency Response 20 Hz to 20 kHz, +/- 0.2 dB
• (unity gain, reference 1 kHz)
• Dynamic Range 111 dB (A-weighted)
• THD + N 0.02% (1 kHz)
• Output Impedance 22 Ohms
• Trim Range -inf dB to 0 dB

Electrical

• Aux Power DC Connector USB-C (USB-C to USB-C cable
• required, not included)
• Aux Power DC Requirements 5VDC, 2.6A

Mechanical

• Product Dimensions
• Length 8.4’’ (213 mm)
• Width 6.2’’ (157 mm)
• Height 1.9’’ (48 mm)
• Weight 1.8 lb (0.81 kg