Universal Audio Apollo Solo USB Heritage Edition USB Audio Interface

Apollo Solo USB Heritage Edition — Pro Studio Sound on a Windows Desktop

The Universal Audio Apollo Solo USB Heritage Edition is designed for Windows-based producers, songwriters, and recording musicians who want the classic sound of studio hardware in a portable desktop package. Two Unison-enabled mic preamps and a Hi-Z input on the front panel send signals to high-end 24-bit/192 kHz converters, and the onboard UAD-2 SOLO Core processor runs plug-in suites live. This model is a top pick for project-studio owners and mobile recordists needing authentic vintage color—Neve, API, Manley, Marshall, Fender, SSL—recorded straight to disk with minimal latency.

Unison Preamps and Heritage Plug-In Bundle

Unison preamp technology is what gives this interface its edge, physically altering impedance, gain staging, and circuit response to emulate classic gear at the hardware level—not just in software. With the Heritage Edition bundle, users gain five award-winning plug-in packs: the UA 1176 Limiter Collection, Teletronix Leveler Collection, Pultec Passive EQ Collection, UA 610 Preamp and EQ Collection, and Pure Plate Reverb. That lineup lets you handle everything from tracking and mixing to finalizing with tools used across decades of hit music.

Inputs, Preamps, and Phantom Power

Flexibility is built in for creators working solo but demanding pro-level headroom and routing. Two XLR/TRS combo jacks support microphones or line-level gear, and a dedicated 1/4" Hi-Z input on the front is ideal for guitars and basses—no DI box required. Each preamp provides 48 V phantom power, polarity reverse, pad, and high-pass filter, all easily accessed from the front panel.

• Number of Channels: 2 inputs / 4 outputs — perfect for recording vocals and guitar with a stereo monitor path.
• Number of Preamps: 2 Unison-enabled — models Neve, API, Avalon, Manley, and SSL hardware directly.
• Phantom power (+48 V) is individually switchable per channel, supporting ribbon, dynamic, and condenser mics.
• Inputs: 2 × XLR/TRS combo + 1 × 6.3 mm Hi-Z — covers microphones, line, and instrument sources.

Conversion, Sample Rate, and Real-Time UAD Processing

Impressive conversion quality and DSP power define this unit, borrowing converter tech from UA’s flagship rackmount products. The dedicated UAD-2 SOLO Core engine moves plug-in processing off your computer, so you can run vintage compressors, EQs, and tape machines in real time while tracking. At 96 kHz, round-trip latency is approximately 1.1 ms—low enough for real-time monitoring through plug-ins.

• Sample Rate: up to 192 kHz / 24-bit — captures full-bandwidth detail for mixing and mastering.
• UAD-2 SOLO Core: onboard DSP — handles Neve, API, Marshall, and Ampeg emulations in real time.
• Low latency (~1.1 ms at 96 kHz) enables performers to monitor through effects without noticeable delay.
• Plug-In Formats: VST, AU, AAX 64 — compatible with Pro Tools, Cubase, Ableton Live, Logic Pro, and major DAWs.

Headphone Amp, Outputs, and Build

Monitoring is as critical as capture. A robust headphone amp easily powers high-impedance studio headphones with low noise and accurate frequency response, outperforming many desktop competitors. Two 6.3 mm line outputs feed active monitors, and a front-panel headphone jack supports cue mixes. It’s bus-powered via USB 3.0 Type-C and fits neatly beside any laptop or desktop.

• Outputs: 2 × 6.3 mm TRS line + 1 × 6.3 mm headphone — supports stereo monitors and cue mix duties.
• Headphone Output: drives headphones up to 250 ohms — suits most professional studio models.
• USB 3.0 Type-C connectivity provides power and data with a single cable to your Windows machine.
• Dimensions: 45 × 180 × 122 mm — compact enough for desktop use beside a laptop or monitor.