• Lubricating bands can create up to 20 dB or more loss
• It is possible that the toneheads get blocked
• Dirt can cause a failure of one or more channels
• Limitation of the frequency response, by Impurities on the recording or playback head
• A sound without brilliance, the more dirt and abrasion occurs
• Soiling of band-leading parts
• Pollution of new belts due to old abrasion.
• Increased synchronization fluctuations and slowed down Reels, to a standstill, by impurities
the band guide.