Re: Passive PFC - The HongKongFlyApart way
This one (in the red circle) is really likely the same thing.
This cheap PSU from my country is said to be just 15$ for 550w
(Sorry for piss-poop-poor image quality, I just had a quick edit to avoid the copyright issues.)...
Rangwan
Member
Last Activity: 08-13-2015, 05:24 AM
Joined: 05-21-2012
Location: Bang Yai/ nonthaburi
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Vocal range sounds like crap when adding too much bass
I've observed that on many dirt-cheap speaker systems and promptly found this, but don't know why that happens. -
Re: How much amps required for 40w amps to run smoothly?
By the way, how much capacitance needed to remove the annoying main hum?Leave a comment:
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Re: How much amps required for 40w amps to run smoothly?
I mean there's 3 small amps that has combined power of 40W and those amps feeds on 9-16v....Leave a comment:
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capacitor balance charging???
The electronic theory says "connecting capacitor in series will give the higher voltage tolerance, but lower capacitance in the same fashion of connecting resistor in the parallel will give higher power tolerance but lower resistance".
However, I've got some idea of "balance charging". Giving 3 capacitors of 1F @4.3V each connected in series with 4 pins like
G|____c1_____|______c2______|______c3_____|+ and charge them like li-po battery. I'm wondered if that will result in 1F capacitor @ 12.6V with no capacitor boomed? -
Re: How much amps required for 40w amps to run smoothly?
All of them are 12v amps.Leave a comment:
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How much amps required for 40w amps to run smoothly?
I'm starting to have my first DIY speaker system having bought some amp kits for it. After finished that, I then have to find the power supply summing total power is about 40w RMS (consuming about 3.5A).
So, I've bought 5A power supply for it thinking that it's enough. As a result, the mid/high is fine, but the bass is just crackling providing an intolerable ugly sound
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By the way, to prove that my amplifier sucks, I've run for my 2.2Ah 20c lipo for them and the sound is perfectly fine.
So, how much ampere needed to sastisfy this amp system? -
Re: Is it okay to recapping the 4.7uF coupling capacitor with 2.2uF?
Thx for reply, btw which capacitor affects the sound quality the most (all electrolytic capacitor present is from "Elite")?
(which one should I had it recapped?)...Leave a comment:
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Is it okay to recapping the 4.7uF coupling capacitor with 2.2uF?
I've bought some cheap amp kit with 4.7uF "Elite" capacitor used for input coupling. And what I currently have is 2.2uF "Nichicon muse ES", if I recapped it, what would be happen with the sound characteristic? -
What about Su'scon YS series
Hello everyone, I'm new here.
Generally, Su'scon is a bad brand that prone to fail, but how about this.
YR bipolar "Audio grade" - [URL="http://www.su-scon.com.tw/en/product/For-audio-equipment-RADIAL-Type-Electrolytic-Capacitor-for-85C/YR.html"]here[/URL]
YS bipolar "Audio grade" - [URL="http://www.su-scon.com.tw/en/product/For-audio-equipment-RADIAL-Type-Electrolytic-Capacitor-for-85C/YS.html"]here[/URL]
YN bipolar "Audio grade" - [URL="http://www.su-scon.com.tw/en/product/For-audio-equipment-and-Non-polarity-RADIAL-Type-Electrolytic-Capacitor-for-85C/YN.html"]here[/URL]...
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