Sone 303 Eng Better __exclusive__

Clearly identifies what is considered "Structural Steel" versus other metals (like stairs or handrails), which helps in accurate bidding.

Perhaps the most audible upgrade is in the rear acoustic chamber. The standard Sone 303 uses a generic felt damper. The ENG version incorporates a made from medical-grade polymer. This eliminates the "cup echo" (a slight 1.5kHz resonance) that plagued the standard version. sone 303 eng better