Cornwall60s Posted July 24, 2023 Report Share Posted July 24, 2023 Hi - I wonder if you might be able to help a novice out! I recently recapped a set of AR15s thanks to the good folk here, and I now I wondered if you might be able to help with a pair of Tannoy Speakers I recently picked up. I popped out the crossover and the resistors are not looking in the best of health, one being cracked and has a bit of a chunk knocked out of it. Both speakers still sound great, although the one with the most damaged resistor does seem to have a slightly duller sound. Is it fair to say that I should replace both of these? If so, can anybody recommend suitable replacements for these ceramic resistors (in the UK). As I say, I am a bit of a novice (but trying to learn!) so just want to make sure I source the correct replacements. Thanks in advance, Richard Quote Link to comment Share on other sites More sharing options...
JKent Posted July 24, 2023 Report Share Posted July 24, 2023 (edited) Hi Richard To me that looks like some sort of physical damage, not electrical. Nevertheless, I'd say definitely replace them and IMHO you may as well go with a higher rating. Those are 8.2 Ohm, 7 watt wirewound. Brand is Expotus (any brand is OK). As long as you're at it, I'd go with 10-ish watts. I'm here in the US but some Brit members have mentioned Falcon Acoustics. https://www.falconacoustics.co.uk/ls35a-kit-falcon-minimonitor-q7-systems/resistors-ceramic-wire-wound-metal-oxide-loudspeaker-crossover-network.html Mouser (UK) is another resource. Any of these 8.2 ohm 10w wirewound resistors should work: https://www.mouser.co.uk/c/passive-components/resistors/wirewound-resistors/?power rating=10 W&resistance=8.2 Ohms&termination style=Axial|~Solder Lug I broadened the search a bit here to include 8 to 8.25 Ohms (close enough IMHO) and 10-12.5w. https://www.mouser.co.uk/c/passive-components/resistors/wirewound-resistors/?power rating=10 W~~12.5 W&resistance=8 Ohms~~8.25 Ohms&termination style=Axial|~Solder Lug&rp=passive-components%2Fresistors%2Fwirewound-resistors|~Power Rating|~Resistance They (Falcon) stock Expotus but I don't know if they have 8.2 ohms. Maybe give them a call. In the meantime maybe another Brit will give some advice. Kent Edited July 29, 2023 by JKent Quote Link to comment Share on other sites More sharing options...
Cornwall60s Posted July 25, 2023 Author Report Share Posted July 25, 2023 Perfect, thank you Kent. This is exactly what I was lookling for! Richard Quote Link to comment Share on other sites More sharing options...
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