This InterM QD4480 quad-channel amplifier is in good condition with only light cosmetic wear, including minor rack rash and surface marks typical of regular professional use. All channels have been fully tested and confirmed to output clean, undistorted signal at 80W per channel into 8Ω, with no operational faults or noise issues. The unit is structurally sound with responsive controls and fully functioning indicator LEDs.

The QD4480 is a space-saving 2U rackmount amplifier designed for multi-zone distribution, studio cue mixes, or compact live setups. It features four balanced XLR/TRS combo inputs with individual gain controls and 5-way binding post outputs for flexible speaker connections. Bridging capability allows up to 240W output at 8Ω, and onboard protections include clip limiting, soft-start, and active fan cooling for reliable performance under load.