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Class D Switching Power Amplifiers and Power D/A conversion

wiring up the ICE Edge 1200AS2 board
wiring up the ICE Edge 1200AS2 board
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Old 6th October 2019, 04:33 PM   #11
Dadbeh is online now Dadbeh  United States
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I have the full ghent audio harness so i can add all the functionality that this unit offers if I want to. I have space to add one potentiometer and i couple of two or three position buttons. which functionalities would be recommended to add to this box? right now I just have an on/off button in the back and one pair of XLR inputs and nothing else.
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Old 7th October 2019, 04:40 AM   #12
seanny is offline seanny  United States
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Your SHD can handle 4 Vrms.
Your amp has a gain of 19.5.
This combo can max the the power of your amp.

If you use the same preamp and the same setting in the SHD you should get the same power with either gain clone or new amp.

Perhaps you attenuate the signal in your SHD or your preamp not putting out enough Vrms?
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Old 7th October 2019, 10:58 AM   #13
Dadbeh is online now Dadbeh  United States
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Quote:
Your SHD can handle 4 Vrms.
Your amp has a gain of 19.5.
This combo can max the the power of your amp.
the voltage gain on B&O 1200AS2 is 25.8db
the gain om lm3886 in most designs in between 25 to 26 db

I use the same source/pre for both amplifiers. at -10db from max the percieved level of loudeness is the same. I will do some measurement with minidsp microphone and REW software soon
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Old 7th October 2019, 10:09 PM   #14
Dadbeh is online now Dadbeh  United States
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HOW can i make sure that i drill holes at the right positions for the heatsink on the 1200As2. I have been listening to it for a few days and i think im ready to install it in an aluminum case, and i even bought hella thermal paste (its a European unit of measurement) to apply and then fix it to the case, but im pretty sure im gonna mess up the positions for the holes. is there a template i can print?
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