Used Symetrix 421M Audio Converter

Upgrade your audio setup with this used Symetrix 421M Audio Converter, a high-quality solution for managing levels, noise reduction, and signal optimization. This unit is in good condition, tested and fully functional, providing reliable performance for professional or home studio applications. The 421M features automatic gain control (AGC), downward expansion, and peak limiting, ensuring clean and even audio output. It supports balanced XLR and unbalanced 1/4-inch inputs and outputs, making it versatile for various setups. With a frequency response of 20Hz to 20kHz and adjustable threshold and ratio controls, this unit delivers precise audio processing. Whether for live sound, broadcasting, or recording applications, the Symetrix 421M helps maintain optimal audio levels with minimal distortion. Some signs of wear may be present, but this unit remains a dependable addition to your sound system. Don’t miss the chance to add this professional-grade processor to your setup at a great value.