#1
Focusrite Scarlett 2i2 4th Gen
Budget USB Audio Interface · 2-in/2-out, 24-bit/192kHz, 1 XLR + 1 instrument input, 40dB preamp gain, 2 headphone outs$120–$170 usedBest for: Home vocal recording, guitar recording, podcasting, entry-level home studio
Focusrite Scarlett 2i2 4th Gen ($120–$170 used) is the industry-standard entry-level interface — 1 XLR mic input with 40dB phantom power, 1 instrument input for guitar, USB 2.0 connection, and low-latency monitoring. Retail $150–$180 new; used finds at $120–$170 are common. Every home studio starts with a Scarlett. No-frills reliability.
What to check used: Two inputs means only one mic + one instrument at a time. No built-in DSP or processing — external gear/plugins needed. USB bus-powered, so computer must provide stable power.
#2
Audient iD4 MkII
Compact USB Audio Interface · 2-in/2-out, 24-bit/96kHz, 1 XLR + 1 instrument input, 60dB preamp gain, Class A circuits$100–$150 usedBest for: Home vocal recording, podcasting, portable recording, entry-level studios
Audient iD4 MkII ($100–$150 used) is the compact alternative to Scarlett — smaller footprint, 60dB preamp gain (higher than Scarlett's 40dB, better for quiet mics), Class A circuits (lower noise floor), and USB-C connection. British engineering at budget price. Retail $150–$200 new; used finds are excellent value.
What to check used: 60dB gain can introduce noise if not carefully used with loud microphones. Compact size means fewer physical controls (gain adjustment is digital). Limited input count (1 XLR + 1 instrument).
#3
Universal Audio Volt 2
Hybrid USB/DSP Audio Interface · 2-in/2-out, 24-bit/96kHz, 1 XLR + 1 instrument, 40dB preamp, built-in compressor + EQ plugins$130–$180 usedBest for: Home studio with built-in processing, vocal recording with compression, podcasting
Universal Audio Volt 2 ($130–$180 used) adds built-in plugins to the budget interface tier — includes Universal Audio compressor and EQ emulations (Neve, LA-2A), real-time vocal processing without computer load. Retail $200 new; used at $130–$180 offers pro features at budget price. UA quality at entry-level price point.
What to check used: Built-in plugins are limited to compression/EQ — full DAW processing unavailable. Requires UA account and registration. Slightly higher latency than pure USB interfaces.
#4
SSL 2
Compact Professional USB Interface · 2-in/2-out, 24-bit/96kHz, 1 XLR + 1 instrument, 60dB preamp, SSL color sound, Fusion mixer$120–$170 usedBest for: Professional home studio, vocal recording, podcasting with SSL character
SSL 2 ($120–$170 used) is the professional compact interface — 60dB preamp gain, SSL's signature color (slight presence peak), built-in Fusion mixer (simple mixing interface), and broadcast-grade preamp design. Retail $200 new; used finds at $120–$170 offer SSL's professional sound at budget price. Popular with podcasters.
What to check used: SSL color adds presence peak (not fully neutral) — affects vocal tone in post-processing. Fusion mixer can be overwhelming for beginners. Compact size limits expandability.
#5
MOTU M2
Compact USB Audio Interface · 2-in/2-out, 24-bit/96kHz, 1 XLR + 1 instrument, 40dB preamp, MOTU software bundle$120–$160 usedBest for: Home studio with software tools, podcasting, entry-level production
MOTU M2 ($120–$160 used) is the builder's interface — includes MOTU's software bundle (mixing, basic plugins), 40dB preamp gain, USB 2.0, and solid build quality. Retail $150 new; used at $120–$160 offers value through included software. MOTU is trusted by professionals.
What to check used: Software bundle is basic — does not replace paid DAW plugins. 40dB preamp (not 60dB like Audient/SSL) means lower gain for quiet mics. Requires MOTU driver installation.
#6
PreSonus AudioBox USB 96
Entry-Level USB Audio Interface · 2-in/2-out, 24-bit/96kHz, 1 XLR + 1 instrument, 40dB preamp, Studio One Artist included$60–$90 usedBest for: Budget entry-level studio, learning recording, beginner podcasting
PreSonus AudioBox USB 96 ($60–$90 used) is the ultra-budget option — includes Studio One Artist (full DAW), 40dB preamp, 1 XLR + 1 instrument, and USB 2.0. Retail $100 new; used finds under $90 are common. Great value for absolute beginners because DAW is included.
What to check used: Build quality is lower than Focusrite/Audient — durability is 3–5 years vs 10+ for pro interfaces. Studio One Artist is not Professional (limited track count). 40dB preamp is baseline (adequate, not premium).
#7
Focusrite Scarlett Solo
Entry-Level USB Audio Interface · 2-in/2-out, 24-bit/192kHz, 1 XLR input only, 40dB preamp, portable design$80–$120 usedBest for: Portable recording, minimal setup, single-mic streaming or podcasting
Focusrite Scarlett Solo ($80–$120 used) is the minimal Scarlett — 1 XLR input (no instrument input), portable size, and famous Scarlett reliability. Retail $100 new; used finds at $80–$120 are affordable. Best if you only need one microphone and plan to expand later.
What to check used: Only 1 XLR input means no guitar recording until you add another interface. No instrument input — guitars require XLR with adapter or separate interface. Minimal feature set.