Midfield Monitor Product BulletinS3X-H Description The front panel The S3A is one of ADAM’s most famous models and is found in many of the most prestigious recording studios all over the world. The successor of this world famous model is the S3X-H, a monitor second to none within its size and price point. Six controls can be found on the new front panel. Input sensitivity is handled by two controls (one for coarse settings, -20dB to +8dB and one for fine tuning in0.5dB steps, ranging from -1.5dB to 2dB).