Hi and thanks for reading this post.I have a few blown one watt resistors i want to replace in my power amp and am thinking about using surface mount resistors.Do you think this is a wise move switching from through hole to surface mount, has anyone done this and what are your experiences concerning sound quality changes.
...the blown resistors i want to replace are tiny they only occupy 8.5mm on the board,
Are these suitable for audio amps.
Hi. Thanks for the replies.I've found a few surface mounts on mouser but cannot understand the datasheet, usually when purchasing through hole resistors i look for descriptions such as low noise or military or suitable for audio etc but there is no mention. Does anyone understand datasheets better than me or has an opinion on the caddock mk 132 series,vishay dralorik crcw-hp, vishay wsc/wsn series.Are these suitable for audio amps.
You don't mean 1 Watt surface mount right? They don't exist at DigiKey which means they may not exist at all. Why would you think of changing through hole resistors to SMT? If you were designing a new board it would make sense but to try to replace axial resistors with SMT would be extraordinarily tedious. After all that trouble what would you accomplish besides voiding the warranty? If you were suggesting replacing carbon films with metal films MAYBE it _could_ be worth the effort but if designed properly it shouldn't be a carbon vs metal because the operating impedances internally would swamp out the Johnson noise of the resistors.Bottom line - if it works leave it alone but you should find out WHY the 1 Watt resistors failed as that is not at all typical.G²