Before active protection became a normal feature on home audio equipment, many speakers used fuses to protect the midrange and high-frequency drivers. A few speakers still employ them today.
Has there been any empirical evidence that fuses on tweeters & midranges may introduce perceptible distortion?
We understand the temperature of the conductive element increases when a current is present, causing the resistance to rise by an amount. I think the distortion claim may relate to that change in resistance, crossover merge point and the drop in sensitivity that may occur with some fuses.
I am looking at a modern lineup of very-fast acting fuses having a low resistance and 1% of re-rating per 10 deg C. Is there another mechanism that should be considered, or is distortion a non-issue with fuses on drivers?
Has there been any empirical evidence that fuses on tweeters & midranges may introduce perceptible distortion?
We understand the temperature of the conductive element increases when a current is present, causing the resistance to rise by an amount. I think the distortion claim may relate to that change in resistance, crossover merge point and the drop in sensitivity that may occur with some fuses.
I am looking at a modern lineup of very-fast acting fuses having a low resistance and 1% of re-rating per 10 deg C. Is there another mechanism that should be considered, or is distortion a non-issue with fuses on drivers?
non issue, if you are so concerned look at the fuse connections to tolerate 2 Amps
if they are fast acting make sure they act at the limit of what the drivers can tolerate
if they are fast acting make sure they act at the limit of what the drivers can tolerate
I've liked the incandescent idea, where distortion appears near the protection point anyway. Too bad it's a repurpose and devices havent been specifically designed for the task, due to cost. Perhaps someone has studied this and gone deeper with it than just go to the auto store and pick something..
At first when I was made aware of these incandescent protectors, it surprised me. Never occurred to me before. Maybe even mount one to be visible from the baffle. Anyway, great idea.