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Old 19th September 2009, 10:52 PM   #1
jkeny is offline jkeny  Ireland
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Default TA2020 PS mods

I see a modder here http://ta2020.huuryuu.com/index_e.html has supplied pins 2 & 8 with external 5V supply & reported good results - has anybody tried this or separate supplies to the other PS pins & what results?:
Pin 2 Digital 5VDC
Pin 8 Analog 5VDC
Pin 3,7,16 Analog Ground
Pin 19,28 Power ground
Pin 20 Digital Ground
Pin 22,25 Supply Pin for High Current Bridges 13.5V
Pin 27 Analog 13.5V
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Old 21st September 2009, 10:36 PM   #2
jkeny is offline jkeny  Ireland
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Has nobody had a play with making even the 5V power supplies external on pins 2 & 8?
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Old 22nd September 2009, 09:56 AM   #3
Bosk is offline Bosk  Australia
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I haven't, but like you I'm very interested in hearing if others have and what results they've achieved.

I'm a big fan of the TA2020 chip and have owned a couple of amps based on it. I'd certainly be willing to undertake this mod if it yields noticable benefits.
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Old 22nd September 2009, 10:42 AM   #4
Bosk is offline Bosk  Australia
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Oh- speaking of power supply mods, had you considered using a seperate supply for pin 27 (analog 13.5VDC) instead of using the same supply that feeds both VDD1 & VDD2?

I'm not sure this would make any difference to the amps performance, but it's a thought that crossed my mind. Maybe one of the more knowledgable forum members can lend their opinion?
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