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Class D Switching Power Amplifiers and Power D/A conversion

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Old 7th September 2017, 02:33 PM   #11
Yatsushiro is offline Yatsushiro  United Kingdom
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Join Date: Mar 2016
Location: Now, England, but France soon...
Quote:
Originally Posted by robinlawrie View Post
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.
You have the option of buying direct from Ti (in which case it case it ships from the US), or from a local distributor, but you don't get the discount.

They ship/deliver very quickly; a matter of days to the UK.
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Old 7th September 2017, 02:34 PM   #12
ltdf is offline ltdf
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Mine came from Fort Worth, Texas.
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Old 7th September 2017, 04:46 PM   #13
robinlawrie is offline robinlawrie  United Kingdom
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Quote:
Originally Posted by Yatsushiro View Post
You have the option of buying direct from Ti (in which case it case it ships from the US), or from a local distributor, but you don't get the discount.

They ship/deliver very quickly; a matter of days to the UK.

ad how much did you pay to customs?im actually in Italy, but i could get shipped to a friend in the uk who is visiting soon.. customs here are awful.
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Old 7th September 2017, 05:15 PM   #14
Yatsushiro is offline Yatsushiro  United Kingdom
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Originally Posted by robinlawrie View Post
ad how much did you pay to customs?
0, precisely
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Old 7th September 2017, 05:23 PM   #15
robinlawrie is offline robinlawrie  United Kingdom
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ok so now im very interested.. however being as how there are a million opinions and a million options..

ive got a pair of subs and a pair of dual driver alpair fullrangers i need to power. i was going to go for the hifimediy t2 for the fullrangers, and a beefy 400wpc irs2092 for the subs:

IRS2092 Stereo Class D Amplifier 2x 400W 4 ohms - Audiophonics

i could, possibly just get a pair of the tpa3255 ( they all cost the same right) and save money since they run at the same voltage so i only need one psu.. id have a bit less power for the subs, and too much for the fullrangers (although i could then run those at 16 ohm configuration) , but .. oh who am i kidding.. ive still no idea which amps to choose.

Last edited by robinlawrie; 7th September 2017 at 05:25 PM.
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Old 7th September 2017, 06:06 PM   #16
Kjeldsen is offline Kjeldsen  Denmark
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Location: Randers, Denmark
Don't worry - they will all sound good. And they will be even better, because you build them yourself :-)
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Old 7th September 2017, 06:14 PM   #17
DPH is offline DPH  United States
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Location: Portland, OR
Remember you can run the 3255 in SE mode, allowing you other permutations as you see fit, although for 4 channels, hard to suggest anything other than 2x3255 running in BTL. 48 V SMPS are much cheaper than 54V, so keep that in mind as well.
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Old 7th September 2017, 06:18 PM   #18
robinlawrie is offline robinlawrie  United Kingdom
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Join Date: Feb 2008
o so now i have to find a clever way round the "one per customer" limit (or is that one per order?)

also, anyone case to comment on the use of single sided inputs with these? ive read that they prefer differential, but i dont know what you give up using single sided.. thd? power?
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Old 7th September 2017, 06:22 PM   #19
DPH is offline DPH  United States
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DS's suggest really it's really just a matter of power. Some small differences, but nothing to hang a hat on.
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Old 7th September 2017, 06:32 PM   #20
paugie is offline paugie  Philippines
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Join Date: Jan 2015
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Quote:
Originally Posted by Kjeldsen View Post
Don't worry - they will all sound good. And they will be even better, because you build them yourself :-)
Oh wow!
I thought the EVMs came assembled.
It's good I came across your post.
I can't possibly assemble these.
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