of cause just buy from a known manufactureIs there seriously no 'laptop power brick' style power supply that would get this forum's seal of approval?
https://www.mouser.de/Power/Power-S...Rl=brw25ZerbiZ1z0wdi4Z1z0wc4uSGT&Ns=Pricing|0
of cause just buy from a known manufactureIs there seriously no 'laptop power brick' style power supply that would get this forum's seal of approval?
From my search, I found the Mean Well GST series, for my A04 I am thiking to get GST160A24, for A07 you can look into the higher W and V models. Plus you will need the 5.5x2.5mm plug converter.Is there seriously no 'laptop power brick' style power supply that would get this forum's seal of approval?
Also what is the 30V regulated linear power supply you used in your tests? It would be quite interesting to end up with similar results.
Also what is the 30V regulated linear power supply you used in your tests? It would be quite interesting to end up with similar results.
From my search, I found the Mean Well GST series, for my A04 I am thiking to get GST160A24, for A07 you can look into the higher W and V models. Plus you will need the 5.5x2.5mm plug converter.
=200mVp-p RIPPLE & NOISE ( https://www.meanwell.com/webapp/product/search.aspx?prod=GST280A)this looks very promising
https://www.meanwell-web.com/en-gb/meanwell-gst/all-item-number/all-output-current-a/48/ac-dc-industrial-desktop-adaptor-with-pfc-output-gst280a48--c6p?returnurl=/en-gb/meanwell-gst/all-item-number/all-output-current-a/48/#gst280a48-c6p
but i can't find a converter for it.
=200mVp-p RIPPLE & NOISE ( https://www.meanwell.com/webapp/product/search.aspx?prod=GST280A)
I bought SDR-240 with =50mVp-p
Best SMPS ones have <=20mVp-p
Take a step down to the GST220 that uses the power miniDIN and there will be adapters available. They don't at this level because you'll be hard pushed to find a barrel connector rated for the current.this looks very promising
https://www.meanwell-web.com/en-gb/meanwell-gst/all-item-number/all-output-current-a/48/ac-dc-industrial-desktop-adaptor-with-pfc-output-gst280a48--c6p?returnurl=/en-gb/meanwell-gst/all-item-number/all-output-current-a/48/#gst280a48-c6p
but i can't find a converter for it.
Take a step down to the GST220 that uses the power miniDIN and there will be adapters available. They don't at this level because you'll be hard pushed to find a barrel connector rated for the current.
In that case you'll have to make an adapter, find a custom adapter maker, or chop the end off and solder on a barrel connector with the highest current rating you can find.I have 8 Ohm speakers with 70W rated power speakers (peak) so i was trying to follow Amir’s advice and getting high voltage high amperage PSU.
I tested my AIYIMA A07 with a 19V AC adapter for a laptop PC.Minimum specified supply voltage for the 3255 is 18V but the undervoltage protection doesn't cut in until 14.5V according to the datasheet. On that basis I would expect it to be marginal but workable, even if there's reverse polarity protection dropping it a bit. It's possible there's something else in the implementation around it that sets a higher limit though. Power output would obviously be limited (see datasheet again.)You could get an A04 instead - that would be better suited to the low supply voltage.
I just ordered one of these for my inlaws. I don't have the equipment to do any testing, but I do plan to do a basic function check and listening test before I give it to them. I expect it to have adequate power and to sound fine. That TAS5352A might be old, but the published distortion profile should be perfectly inaudible.The Aiyima D05 has more functions and features, but maybe not as low distortion for some applications. The TAS5352 amplifier IC is very old (current TAS5352 DS is 2007) and is NOT recommended for new designs.
Aiyima D05 Chips set: CM6642, TAS5508, TAS5352A, QCC3008, CS8422, WM8782
View attachment 107442
View attachment 107443
I tested my AIYIMA A07 with a 19V AC adapter for a laptop PC.
The result worked perfectly fine. From this, the minimum operating voltage of TPA3255 is 18V as shown in the data sheet.
Your opinion is correct.
However, you will feel a slight decrease in sound quality when playing at high volume.
How many Ampere did it have and how loud could it get? I am considering a 24V 4A (96W) brick which according to a friend with a degree in electronics should be plenty for some living room listening (not trying to open a dance club).I tested my AIYIMA A07 with a 19V AC adapter for a laptop PC.
The result worked perfectly fine. From this, the minimum operating voltage of TPA3255 is 18V as shown in the data sheet.
Your opinion is correct.
However, you will feel a slight decrease in sound quality when playing at high volume.
How many Ampere did it have and how loud could it get? I am considering a 24V 4A (96W) brick which according to a friend with a degree in electronics should be plenty for some living room listening (not trying to open a dance club).
Wrong! It depends on total power. And less voltage mean lower Temperature and longer life.The lower the voltage the higher the input current and the lower stored energy in the capacitor's
Therefore lower voltage can significantly increase stress on the components and lower performance!
No, the opposite is True!And less voltage mean lower Temperature and longer life
My $23 toy amp order just shipped via YunExpress.