Behringer Q502USB – 5‑Input / 2‑Bus Analog Mixer with USB Interface Great: Minimal signs of use. The Behringer Q502USB is a compact, ultra‑portable analog mixer offering 5 inputs (1 mic/line mono channel plus 2 stereo channels) and a built‑in stereo USB audio interface. This specific unit shows minimal signs of use, making it an excellent choice for buyers seeking reliable performance with little cosmetic wear. It’s ideal for small studios, podcasting, and mobile recording, providing essential analog mixing features in a very small footprint. Equipped with a XENYX microphone preamp (+15 V phantom power), a “one-knob” compressor, and a British-style 2‑band EQ, the Q502USB delivers professional-grade audio tools at an affordable price. Its USB interface allows direct recording to or from a computer with minimal complexity. Despite its compact size, it offers flexible routing (2‑track I/O, RCA inputs/outputs, assignable sends) and reliable performance for portable or desktop use. Key Features Inputs: 1 mono XLR/TRS combo channel, 2 stereo line channels, RCA 2-track input Mic Preamps: XENYX mic preamp with +15 V phantom power Compressor: One-knob compressor on the mono mic channel EQ: British-style 2‑band EQ on the mono channel USB Interface: 2-in/2-out stereo USB (48 kHz sample rate) Outputs: Main balanced TRS, RCA 2-track out, headphone out Routing Flexibility: 2-track inputs assignable to main mix or phones, FX/send routing Compact & Portable: Small size, lightweight, and minimal signs of use Accessories/Software: Free downloadable audio software and plug-ins from Behringer Warranty: 3-year warranty (upon registration, as per Behringer policy) Technical Specifications Dimensions: 5.4″ × 7.2″ × 1.8″ (138 × 184 × 46 mm) Weight: 1.3 lb (0.6 kg) Maximum Input Level (Mic channel): +12 dBu at +10 dB gain Mic Input Impedance: 1.4 kΩ (balanced) Mic EIN (20 Hz–20 kHz, A-weighted): –134 dB (0 Ω source) / –131 dB (50 Ω) / –129 dB (150 Ω) Line Input (Mono): 1 × ¼″ TRS, 20 kΩ (balanced) / 10 kΩ (unbalanced) Stereo Line Inputs: 2 × stereo ¼″ TRS 2-Track Input: RCA stereo, 18 kΩ impedance Main Outputs: 2 × ¼″ TRS balanced, 120 Ω 2-Track Output: RCA stereo, 1 kΩ impedance Headphone Output: ¼″ TRS, +21 dBu max (150 Ω load) EQ (Mono): Low = 80 Hz ±15 dB, High = 12 kHz ±15 dB Gain Ranges: Mono: –10 dB to +40 dB; Stereo: –20 dB to +20 dB USB Sample Rate: 48 kHz (2-in / 2-out) Noise (Main Mix): –105 dB (channel fader –∞) / –93 dB (main mix 0 dB) A-weighted THD + N: ~0.006% / 0.005% (A-weighted) Power Consumption: 13 W (external adapter)