How often must the tubes be replaced?
A. They have a minimum sonic life of about 2500 hours, depending on type and implementation. The end of the tube’s useful sonic life is determined when there is a loss of dynamics or rhythmic ‘drive’ and an overall ‘softness’ of the sound. This happens very gradually and a quick change of tubes will restore the original sound. In an ‘average’ installation, it will be found advantageous to change tubes about every two to three years. By the way, nearly all the components in our amplifiers are significantly over-specified. Wright Audio amplifiers operate more conservatively for longer tube life. Our amplifier owners can feel free to operate our amplifiers all day every day. Since 1989, we have supplied suitable, screened replacement tubes for all of our tube components at reasonable cost, and our Warranty covers them for 90 days from the date of purchase.
