PreSonus Quantum ES 2 USB-C Audio Interface - Low-Latency Recording

In this review the PreSonus Quantum ES 2 is presented as a compact, studio-focused USB-C audio interface aimed at self-made musicians and home producers; its single biggest selling point is consistently low latency and clean front-end conversion that keeps takes tight and usable. The package includes a Studio One Pro perpetual license and a pair of redesigned MAX-HD mic preamps with high gain, which makes it a practical pick for singer-songwriters and small project studios who need reliable performance without complicated setup.

Key Features

• Low-latency driver: The custom driver provides exceptionally low audio latencies when recording, so monitoring and tracking feel immediate and natural.
• MAX-HD mic preamps: Two newly designed mic preamps with +75 dB of gain deliver transparent, low-noise amplification suitable for modern microphones.
• Co-developed instrument input: The specially designed instrument input by Fender engineers gives guitarists and bassists an optimized input for direct recording.
• Studio One Pro included: A perpetual license for Studio One Pro lets users start tracking, editing, and producing without buying DAW software separately.
• Auto Gain and hands-on control: Auto Gain plus an illuminated push encoder and the Universal Control app let you set perfect gain and monitor levels quickly.
• Flexible monitoring: Balanced 1/4-in TRS main outputs, a high-power headphone output, and loopback audio simplify monitoring, streaming, and content creation mixes.

Who It's For

The Quantum ES 2 is ideal for solo artists, podcasters, and small studio owners who value sound quality and minimal latency during tracking. Its high-gain MAX-HD preamps and easy-to-use Auto Gain feature make it a strong choice for vocalists and instrument players who want transparent capture without wrestling with complex routing.

It may be less appropriate for engineers needing many simultaneous analog inputs out of the box; although customers note expansion workflows are possible, users who require large-format I/O or a different driver ecosystem should evaluate alternatives first.

Pros & Cons

Pros

• Excellent audio quality and low latency for recording and tracking.
• MAX-HD preamps with +75 dB of gain provide clean, usable gain for a wide range of microphones.
• Bundled Studio One Pro perpetual license delivers professional software value.
• Handy Auto Gain, bright LED metering, and Universal Control app for quick sessions.

Cons

• Some users report mixed functionality with certain DAWs or systems at first, so initial setup may require troubleshooting.
• Not a multi-room or large-format console replacement for studios that need many simultaneous analog inputs out of the box.

Specifications

Connectivity	USB-C with low-latency custom driver
Mic Preamps	Two MAX-HD mic preamps, +75 dB gain
Included Software	Studio One Pro perpetual license
Instrument Input	Co-developed instrument input (guitar/bass)
Monitoring	2 balanced 1/4-in TRS mains, high-power headphone out, loopback
Controls	Auto Gain button, illuminated push encoder, Universal Control app

Our Verdict

The PreSonus Quantum ES 2 offers a compelling combination of low latency, high-quality MAX-HD preamps, and useful software inclusion that makes it one of the better choices for home studios and solo creators. It represents good value for anyone who needs dependable recording performance and simple control, though users requiring extensive native analog I/O should consider larger systems.

Frequently Asked Questions

Does this interface work with mobile devices?
The Quantum ES 2 works with mobile and desktop devices via USB-C and can be managed with the Universal Control app for basic functions.

Is Studio One Pro included?
Yes, a perpetual license for Studio One Pro is included with the interface so you can start producing right away.

Will it handle guitars and basses well?
Yes, the instrument input was co-developed with Fender engineers and is tuned for guitar and bass performance.