LITTLEWING Posted December 11, 2017 Share Posted December 11, 2017 Anybody know if the fan on my Hydrive 115c 250 watt combo should come on straight away or does it kick in at a certain temperature? My 3500 head comes on straight off but that's 350 watts. Quote Link to comment Share on other sites More sharing options...
Bill Fitzmaurice Posted December 11, 2017 Share Posted December 11, 2017 If it's thermistor controlled it will come on at a set heatsink temperature. The amp power has nothing to do with it, there are 100 watt amps that need a fan, there are 1000 watt amps that don't. The advantage to a fan is that it allows smaller heatsinks. Quote Link to comment Share on other sites More sharing options...
LITTLEWING Posted December 11, 2017 Author Share Posted December 11, 2017 Ah, I'll have a feel next rehearsal and see if it comes on any time. Gigged last Saturday with no problem and it was warm compared with my old fan-less Ampeg combo which you could fry an egg on. Cheers. Quote Link to comment Share on other sites More sharing options...
LITTLEWING Posted December 11, 2017 Author Share Posted December 11, 2017 Got this from Hartke. Thanks, James. Quote Link to comment Share on other sites More sharing options...
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