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Class D Switching Power Amplifiers and Power D/A conversion

TI Class D EVM Board 50% Promotion
TI Class D EVM Board 50% Promotion
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Old 28th June 2017, 08:57 AM   #1
Yatsushiro is offline Yatsushiro  United Kingdom
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Default TI Class D EVM Board 50% Promotion

Received an email from TI this morning announcing another half price promotion on a range of EVM boards; TPA3255, TPA3251, TPA3250, TPA3245 & TPA3244.

If you have an account (and if you don't, registration is simple), then use the code "highpoweraudio" on checkout.

TPA3255EVM TPA3255 315W Stereo / 600W Mono PurePath? Ultra-HD Analog-In Audio Class-D Module | TI.com
TPA3251D2EVM TPA3251 175W Stereo / 350W Mono PurePath? Ultra-HD Analog-In Audio Class-D Module | TI.com
TPA3250D2EVM TPA3250 70W Stereo / 130W Peak PurePath? Ultra-HD Analog-In Audio Class-D Pad-Down Module | TI.com
TPA3245EVM TPA3245 115W Stereo / 230W Mono PurePath? Ultra-HD Analog-In Audio Class-D Module | TI.com
TPA3244EVM TPA3244 60W Stereo / 110W Peak PurePath? Ultra-HD Analog-In Audio Class-D Pad-Down Module | TI.com
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Old 30th June 2017, 05:07 AM   #2
bvtrinh is offline bvtrinh  United States
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Default Thank you!

Thank you very much!
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Old 30th June 2017, 07:10 AM   #3
nereis is offline nereis
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Is TPA3255 best since they are the same price?

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Old 30th June 2017, 07:13 AM   #4
doctormord is offline doctormord  Germany
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Depends on power needed and speakers impedance. For 2-4Ohms, I'd go for 3251.
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Old 6th September 2017, 09:39 AM   #5
Audion123 is offline Audion123
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Which one would you recommend for 4-8 Ohm 91db efficiency speakers?
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Old 6th September 2017, 10:09 AM   #6
Kjeldsen is offline Kjeldsen  Denmark
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Good prices - 75$ for an original TI EVM board. I really should not buy any :-)
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Old 7th September 2017, 09:36 AM   #7
diytoon is offline diytoon  Belgium
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Quote:
Originally Posted by Kjeldsen View Post
Good prices - 75$ for an original TI EVM board. I really should not buy any :-)
No you should not...but I did... 3255...
should have bought it to start with...
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Old 7th September 2017, 10:06 AM   #8
Kjeldsen is offline Kjeldsen  Denmark
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I think I have a total of 30 class d channels in my house (everywhere), and I only use 6 of them
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Old 7th September 2017, 12:27 PM   #9
robinlawrie is offline robinlawrie  United Kingdom
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ok this is very interesting. would i notice a difference between this (either 3251 or 3255) and the hifimediy t2

Hifimediy T2 Jantzen

i was about to buy one of those, as i have experience of class T amps and i like them. however all the discussion of these amps seems to say "major step forward" etc..

is it worth 2x the cost?


also i note " differential inputs provide best result" what does this mean in practise? i have single sided stuff to feed the amp.
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Old 7th September 2017, 12:29 PM   #10
robinlawrie is offline robinlawrie  United Kingdom
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also, anyone who has ordered them, i assume they come from china? so i will have to deal with customs... hifimediy have a customs prepaid shipping option which is very reasonable.
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