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Class D Switching Power Amplifiers and Power D/A conversion

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Old 21st January 2015, 08:53 PM   #91
Dimonis is offline Dimonis  Russian Federation
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Quote:
Originally Posted by valtra103 View Post
So in my 2ohm load case i shouldn't use 10uH ?
Can you measure the inductance of your tweeter ?
It'll be more easy to calculate the value of the inductor you need.
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Old 22nd January 2015, 08:04 AM   #92
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Originally Posted by Dimonis View Post
Can you measure the inductance of your tweeter ?
It'll be more easy to calculate the value of the inductor you need.
If i could measure inductance, i probably would have everything figured out. I dont have tools forr that.
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Old 22nd January 2015, 10:23 AM   #93
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If it sounds dull, you'll need less inductance.
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Old 22nd January 2015, 10:59 AM   #94
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Quote:
Originally Posted by doctormord View Post
If it sounds dull, you'll need less inductance.
So if inductance too big, then it will lack highs i believe. Thanks for help.
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Old 22nd January 2015, 02:06 PM   #95
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Yes, thats actually all. 22uH is a good rule of thumb, which works most. (Its just for compensate the HF-current)

You'll defo hear when it is to much of comepensation.
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Old 7th September 2015, 11:33 AM   #96
Chov1ch is offline Chov1ch  Croatia
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Hello, I ordered this amp but i hear that when you turn it on it works on 70% volume and with SMD Buttons you can volume up or lower.. so i want make when you turn on amp its automatic on max volume.. how its possible to make?

Screenshot by Lightshot
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Old 9th September 2015, 12:46 PM   #97
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You'll need to change the corresponding PSKeys in the CSR BT chip. Not possible without a programmer for there modules and the Toolkit provided by CSR.

Have you checked if increasing the gain via the 2 dip-switches is already enough "ompf" for your needs?

Last edited by doctormord; 9th September 2015 at 12:50 PM.
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Old 8th October 2015, 08:59 PM   #98
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Default Mini amp repair.. wrong parts?

Hey guys, still pretty new to all this.

So, I accidentally pulled the shaft out of one of my pots while trying to remove the knobs. I replaced a B100k with a B100k on the balance knob. Now it acts as another volume knob. All of them read B100k, so I don't understand why it's not doing the same thing it did before.. any ideas?

This picture is of a new one that I ordered with it's original pots. The one with the green sticker is the balance. What is different about this pot so I can repair the other one with the right part?

Thanks for any insight!

sorry it's sideways
Click the image to open in full size.
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Old 9th October 2015, 10:55 AM   #99
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Sorry, I forgot to mention. The amp is the Kinter MA-180 and there are four knobs and a power switch.. volume, bass, treble, and balance.


Quote:
Originally Posted by owlthathurts View Post
Hey guys, still pretty new to all this.

So, I accidentally pulled the shaft out of one of my pots while trying to remove the knobs. I replaced a B100k with a B100k on the balance knob. Now it acts as another volume knob. All of them read B100k, so I don't understand why it's not doing the same thing it did before.. any ideas?

This picture is of a new one that I ordered with it's original pots. The one with the green sticker is the balance. What is different about this pot so I can repair the other one with the right part?

Thanks for any insight!

sorry it's sideways
Click the image to open in full size.
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