Is it happening to both speakers? Maybe contact the manufacturer perhaps it's a bad fan?Alright, I'm about to dampen the mood here a bit. After using them for a week i noticed the fans were getting on my nerves. They were loud. Too loud. I was trying to read and pause the audio sometimes, and they kept getting loud enough to annoy the crap out of me. Weirdly enough, they seem kick in more often when there's nothing playing, which is obviously when you notice them more. Maybe someone more savvy would be able to explain that away. I don't see the fan spinning all that often in general, but when it does, it produces a high pitched annoying noise.
Anyway, after realizing they absolutely HAD to go, i had one of them replaced as a quick test. The oem craptastic fan was replaced with a significantly better 3 pin Noctua 92mm FLX fan. The fan connector didnt fit and had to be cut a little bit. The fan wires needed to be inverted as well on the connector.. The Hypex board only requires a 2 pin connector, and its not the same pinout of a standard pc fan. Best not to buy a PWM fan and to stick with DC if you're going the same route as me. Regardless, it all works now, and better than ever. There's better airflow, and absolutely no sound from the fans. The fan caps out at 1600rpm and comes with resistor cables to dampen the speed, but there's absolutely no need to use them. Burson Audio does the same thing with their amps and sell their flagship amps with 120mm noctua fans, so they're totally safe to use.
Yep they're both too loud for my taste. Not just a one off thing.Is it happening to both speakers? Maybe contact the manufacturer perhaps it's a bad fan?
This was my concern when I built my kit because my intention was to use them as studio monitors. And I couldn't find much anywhere of people talking about the fan noise but I decided to go with the 253 for this reason. The 253s get hot but the convection cooling does well enough with it. They haven't shut down for thermal yet even with heavy use.Yep they're both too loud for my taste. Not just a one off thing.
Nah the fan isnt always powered on, yet the electrical noise from my tweeter is a constant thing. I wonder if its the internal power supply causing this?This was my concern when I built my kit because my intention was to use them as studio monitors. And I couldn't find much anywhere of people talking about the fan noise but I decided to go with the 253 for this reason. The 253s get hot but the convection cooling does well enough with it. They haven't shut down for thermal yet even with heavy use.
I just saw your post about the noise in the tweeter thing. That's odd for sure, I don't have any hint of that with the 253. I wonder if the noise you're hearing could be from the fan circuit? I haven't seen a schematic or anything just brainstorming
I have the F503 amp, which likely runs much hotter. Yeah the fans kick in quite often once it gets used longer than 30min to an hour. I definitely hear it when i pause music or while I'm listening to people talk on discord or via youtube videos. Its a huge problem for me for my use case.Weird, fan doesn't come in for me in regular listening sessions
It came in heavy listening, bit hpw can you hear a fan while lisyening at 85-90 db at listening position????
The fan is not a conern while listening music, even at low level,how can it be heard????
For the tweeter, no hiss for me, abosutly silent, dead quiet
It could be the electronics you put in front? A ground loop?
Building at the moment the bigger version... Using 2x 10 inch per speaker. Will use the subs in parallel config at 2 Ohm...
@Turcoda Do you know a DC fan which is db comparable to the noctua solution you used?
Would you share more informations how you inverted the connection for the noctua ?