I spent a lot time in a the amplifier trenches. A great deal of effort goes into making amps turn on and off gracefully. No not because of speaker damage, but because customers are worried about speaker damage.
In the sound reinforcement line level processing business a similar amount of design effort goes into providing benign turn on-off characteristics. I recall when DBX made their first effort in live sound reinforcement processing. They made a rack mount crossover (speaker management system). Since this was their first effort they neglected to make it behave nice during turn on/off. They learned from all the customer complaints and fixed it by their second generation roll-out.
JR
PS: To actually damage speakers the on/off transient would need to be significantly louder than the loudest program passages. In my years of paying attention to this I am not aware of much (any?) speaker damage caused by this, but I am aware of major customer preferences complaining about ticks, and pops, and thumps, and....
In the sound reinforcement line level processing business a similar amount of design effort goes into providing benign turn on-off characteristics. I recall when DBX made their first effort in live sound reinforcement processing. They made a rack mount crossover (speaker management system). Since this was their first effort they neglected to make it behave nice during turn on/off. They learned from all the customer complaints and fixed it by their second generation roll-out.
JR
PS: To actually damage speakers the on/off transient would need to be significantly louder than the loudest program passages. In my years of paying attention to this I am not aware of much (any?) speaker damage caused by this, but I am aware of major customer preferences complaining about ticks, and pops, and thumps, and....