ound
17DE4 is an integrated circuit from Texas Instruments (TI) belonging to the Tubesound series of integrated circuits. It is a pre-amplifier and compressor, engineered to produce a vintage tube-like sound. It offers three distinct tonal options—tube, characteristic, and fuzzy—to allow for a wide range of possible sounds. Additionally, the 17DE4 features a gain control range of 0 to +30 dB and intervals of 1 dB. The unit also features balanced and unbounded inputs, allowing for compatibility with unbalanced outputs. The circuit also features two output mixers, one with volume, and one without. The overall design is designed to allow for low noise and a flat frequency response, clear mids, and a smooth high frequency roll-off.