The CELabs AV400 is a high‑performance analog audio/video distribution amplifier designed to take one composite video + stereo audio source and feed it reliably to up to four displays or destinations. Built with a rugged metal chassis and professional shielding, it’s ideal for installations where signal integrity is key. Key features include: - True 1‑to‑4 distribution with unity gain — each output receives the same quality signal as the source. - Supports composite video (RCA) and stereo audio (L/R) via RCA connectors. -Video specifications: input impedance around 75 Ω, very low insertion‑loss (<0.4dB from 50Hz–10MHz) and high isolation between ports (32dB channel‑to‑channel, 60dB output‑to‑input) for minimal interference or signal degradation. -Supports longer cable runs — up to about 100–150 feet between unit and displays under good cabling conditions. -Audio specifications: unity gain, THD around 0.05% at 1V input, very high channel separation (>75dB @ 1kHz), signal‑to‑noise around 100dB.