QT0007830
20.8 core
QT0007830, voice coil 20.8 core, OD 78 mm / ID 20.8 mm / SOD 70 mm, material NC-20/S Built for speaker spider, damper, and loudspeaker suspension sourcing checks.
Buying Notes
Specification check: confirm OD, ID, SOD, FH, EH, voice-coil group, and material code instead of ordering by model alone.
Sample matching: send clear photos, drawings, or key measurements when the original model is unclear.
Quote support: share quantity, destination market, and sampling needs so pricing and lead time can be confirmed.
Related Products
Similar dampers selected by voice-coil group, material, and nearby dimensions.
QT0017509
QT0017509, voice coil 20.8 core, OD 80 mm / ID 20.8 mm / SOD 74.3 mm, material NC-20/S
QT0008445
QT0008445, voice coil 20.8 core, OD 74 mm / ID 20.8 mm / SOD 67.5 mm, material NC-20/S
QT0018811
QT0018811, voice coil 20.8 core, OD 72 mm / ID 20.8 mm / SOD 67.5 mm, material NC-30/S
QT0018523
QT0018523, voice coil 20.8 core, OD 72 mm / ID 20.8 mm / SOD 64 mm, material NC-20/S
Related Guides
Use these articles to validate spider selection, material choice, or sample matching.