In the same way, don't expect an amplifier rated with bypassed fuse or breaker protection to perform well in normal conditions. Distorted signals sound louder than clean signals but actually provide less power to your speakers. Over time, these signals can cause faster speaker failure. Warranty periods typically range from one to five years. Longer warranties may give you peace of mind, but find out what will and won't be covered.
Many warranties only cover manufacturing defects.
Since warranty repairs are often made at the manufacturer's discretion, be sure to explain fully and cordially the circumstances of the product failure. Cooling and ventilation. Most amplifiers dissipate heat through the use of small fans installed in the unit. If fan noise may present problems for you, look for the quietest fan you can. When buying multiple amplifiers, be sure that they all move air in the same direction for maximum heat dissipation.