Elevate your home studio with the PreSonus Quantum ES 4, a sleek and powerful 4-in/4-out audio interface built for today’s musicians, producers, and content creators. Backed by nearly three decades of engineering excellence, the Quantum ES 4 delivers pristine sound and next-gen performance. At its core are MAX-HD mic preamps, offering ultra-clean gain and crystal-clear capture of vocals and instruments. Seamless integration with PreSonus software and low-latency drivers ensures a frustration-free workflow from tracking to mixing. 4x4, 24-bit/192kHz 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 Next-generation PreSonus MAX-HD preamp design provides transparency and accuracy across the frequency range with +75dB 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 Two balanced 1/4 TRS main outputs, plus two balanced 1/4 TRS line outputs and two high-power headphone outputs for flexible monitoring 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 Professional Recording Software included—6 months of Studio One Pro+ with full access to Studio One, add-ons and more