The Red3 employs a four-piece OTL cantilever with a Grado-specific diamond mounted on a brass bushing.
 
Distinguishing between Blue3 and Red3: Around 15% of the Blue3 production batch meets higher specifications, hand-selected and designated as Red3.
 
Grado's OTL technology ensures optimal signal transfer, rejecting unwanted resonances and reducing distortion, preserving the music's fundamental and harmonic frequencies while minimizing motor system noise.
 
Hand-assembled in Brooklyn by experienced craftsmen, the Red3 offers exceptional tonal balance, dynamics, and realism. Utilizing coil winding techniques from the Lineage Series, it achieves precise balance between channels and accurate stereo imaging.
 
Powered by a twin magnet system, the Red3 maintains stereo balance with high precision. Grado's patented Flux-Bridger design minimizes moving mass while ensuring excellent balance across the frequency range.