Universal Audio Apollo Solo USB is a 2-in 4-out desktop USB audio interface for Windows with a single Unison mic preamp, 24-bit and 192 kHz conversion, and onboard DSP for Realtime UAD processing. It carries the same audio path as the Thunderbolt Apollo Solo and includes the Realtime Analog Classics plug-in bundle.Apollo on a Windows machine with no Thunderbolt port.Free shipping · Free local pickup in Miami · Financing at checkoutApollo is built around Unison, which is the part that separates it from a conventional interface. Unison gives the physical mic preamp bidirectional control, so a Neve, API, Manley or SSL emulation changes the impedance and gain staging of the analog front end rather than only processing the signal after conversion. The result behaves like the modeled preamp at the input, not like a plug-in placed after one.Realtime UAD Processing is the second half. Onboard DSP runs UAD plug-ins at near-zero latency regardless of the DAW buffer size, so a vocalist monitors through an LA-2A and a Pultec while tracking, and the DSP load sits on the interface rather than the computer. The same plug-ins run in VST, Audio Units and AAX in any major DAW at mix time.LUNA is included free. It is UA's own recording system, and it adds tape, console and summing emulations that run as extensions rather than as inserts, which is a different workflow from treating them as plug-ins on a channel.At a Glance Type Apollo audio interface I/O 2-in / 4-out Unison preamps 1 Conversion 24-bit, 192 kHz Connection USB, Windows Form factor Desktop Plug-in bundle Realtime Analog Classics How Much I/O Does Apollo Solo Have?Two in and four out. One Unison mic preamp on a combination XLR and 1/4 in. input, a front panel Hi-Z instrument input, a stereo monitor pair and a headphone output. Conversion runs at 24-bit and 192 kHz.Who Is Apollo Solo For?Songwriters, guitarists and vocalists recording one source at a time who want the Unison front end and Realtime UAD processing without paying for channels they will not use. It is also common as a portable second interface alongside a rackmount Apollo.Does Apollo Solo USB Work on a Mac?Universal Audio positions the USB version for Windows systems and the Thunderbolt version for Mac. Check UA's current system requirements before ordering, and call 844-687-4208 if you want that confirmed against your machine.What Is Unison and Why Does It Matter?Unison gives the UAD plug-in bidirectional control over the physical mic preamp, so a Neve, API or Marshall emulation changes the impedance and gain staging of the analog input stage rather than processing the signal after conversion. The preamp responds to a microphone the way the modeled hardware does.Connections Mic/line input 1, combination XLR and 1/4 in., Unison Instrument input 1, front panel Hi-Z Monitor outputs 1 stereo pair Headphones 1 stereo output Computer USB Why Universal Audio?Universal Audio was founded in 1958 by M.T. "Bill" Putnam, the engineer who built the first recording console with integrated equalization and effects sends, and who designed the 1176 and the 610. The company was revived in 1999 by his sons and now does two things: it still hand-builds analog hardware in California, and it licenses and models the classics from Neve, API, Manley, SSL, Lexicon, Studer, Ampex and others rather than emulating them without authorization.Frequently Asked QuestionsIs this a genuine Universal Audio product?Yes. Victory is a veteran owned dealer in Miami and units ship new in original packaging with full manufacturer support, including software registration rights.Is this covered by warranty?Yes. This unit carries the full Universal Audio manufacturer warranty, registered to you as the original purchaser. Call 844-687-4208 for the current term.How is this different from the Thunderbolt Apollo Solo?The connection. This is the USB version, positioned by Universal Audio for Windows systems. The audio path, Unison preamp and DSP are the same.Can I track through UAD plug-ins with no latency?Effectively yes. Realtime UAD Processing runs plug-ins on the interface's own DSP at near-zero latency regardless of the DAW buffer size.Will it work on a Mac?UA positions the USB model for Windows. Check the current system requirements on uaudio.com, or call 844-687-4208 and we will confirm.Why Buy From Victory Musical Instruments?Victory Musical Instruments is a pro audio and musical instrument dealer in Miami, Florida. We support churches, schools, studios and working musicians across South Florida and ship nationwide. Every unit is new in the original factory packaging with full manufacturer support. Call 844-687-4208 to check lead time, request a quote, or arrange local pickup.