ultra low noise 24v dc 2 pin 40x40 mm fan
I bought a class d amp from gear4music 2x226 watt in 8 ohm
I expected the fan to be noisy, it is, air noise from the back grill (a bit high rpm), and coilwhine,high pitched noise.
I took the fan out of the case (one rubber dampening screw or what ever it's called got damaged, the end that's on the rear, with the grill in the middle and then the fan).
I want an ultra low noise 24v dv 2 pin 40x40 mm fan but which ?
noise blocker makes a 4020-5500-24 fan but where to get it ?
blacknoise.com - Blacknoise NB-IP55-Series 4020
Stock fan way to high rpm and coilwhine (thank god it was from the fan and not something else)
I bought a class d amp from gear4music 2x226 watt in 8 ohm
I expected the fan to be noisy, it is, air noise from the back grill (a bit high rpm), and coilwhine,high pitched noise.
I took the fan out of the case (one rubber dampening screw or what ever it's called got damaged, the end that's on the rear, with the grill in the middle and then the fan).
I want an ultra low noise 24v dv 2 pin 40x40 mm fan but which ?
noise blocker makes a 4020-5500-24 fan but where to get it ?
blacknoise.com - Blacknoise NB-IP55-Series 4020
Stock fan way to high rpm and coilwhine (thank god it was from the fan and not something else)
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Gelid silent 4 I imagine would be inaudible based on my experience with the 120mm version. But they are 3 pin so you would need to either extract connector pins or cut and join wires. Actually if the outer pin is feedback wire would plug into the 2 way header as long as nothing right next to it.
the amp is only 2 pin, there is not space for 3pin, i think the 3 pin is for a pc to be able to read the rpm
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I built myself a pair of monoblock First Watt F2J amps in my own cases.
I decided from the start that they should have fans to assist cooling.
At the time, I simply used some RadioShack fans that I had on hand and created a dedicated supply with voltage regulation to control noise by balancing the fan RPM with cooling needs.
It worked well, but the fans have steadily become noisier.
After some research I came across recommendations of Noctua fans in other threads.
Noctua
You can order them on Amazon.
I’ve received a pair, but haven’t installed them yet.
I got the FLX series fan. It comes with a variety of connectors that allow 3 pin to 2 pin conversion easily.
Just another option to consider.
I decided from the start that they should have fans to assist cooling.
At the time, I simply used some RadioShack fans that I had on hand and created a dedicated supply with voltage regulation to control noise by balancing the fan RPM with cooling needs.
It worked well, but the fans have steadily become noisier.
After some research I came across recommendations of Noctua fans in other threads.
Noctua
You can order them on Amazon.
I’ve received a pair, but haven’t installed them yet.
I got the FLX series fan. It comes with a variety of connectors that allow 3 pin to 2 pin conversion easily.
Just another option to consider.
Not possible, it has to be a 24 volt fan
I don't know why they use 24volt fans (limited of the board ?),it's limiting for those who find the fans noisy, why not just 12 volt fans ?
On the amp there is Short Circuit, Limiter, DC Fault, AC Line Fuse, Thermal Cut but it get's a little hot, in no way as hot as some nad c326 can get, i still want to use a fan
It took a great deal of load (strees) for me taking the fan out, grill noise and high pitched noise was unacceptable but i still want to use an ultra low noise fan
I don't know why they use 24volt fans (limited of the board ?),it's limiting for those who find the fans noisy, why not just 12 volt fans ?
On the amp there is Short Circuit, Limiter, DC Fault, AC Line Fuse, Thermal Cut but it get's a little hot, in no way as hot as some nad c326 can get, i still want to use a fan
It took a great deal of load (strees) for me taking the fan out, grill noise and high pitched noise was unacceptable but i still want to use an ultra low noise fan
I had the same problem with my Symetrix 8x8DSP and I solved it by getting a gelid silent 12V fan and a cheap 24->12V buck converter from Ebay. I soldered the converter inline with the fan cable and covered it with wide heat shrink tube to insulate it. You can use a 3 pin fan and just remove the tacho wire.
Theres just not space for a 3 pin on the board in the amp
I was hoping for an easy solution like the noiseblocker fan, if it's 3 pin i can just find a 3 pin to 2 pin adapter (have already found one)
blacknoise.com - Blacknoise NB-IP55-Series 4020
I was hoping for an easy solution like the noiseblocker fan, if it's 3 pin i can just find a 3 pin to 2 pin adapter (have already found one)
blacknoise.com - Blacknoise NB-IP55-Series 4020
Sorry I overlooked your 24V requirement. As most quiet fans are aimed at PC users they tend to be 12V. You could just put a 12V 3W zener diode inline, the silent 4 only pulls 100mA.