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"The Wiener" TPA3118 amplifier, group buy #3 + "Wiener Pro" prototypes.
"The Wiener" TPA3118 amplifier, group buy #3 + "Wiener Pro" prototypes.
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Old 11th April 2016, 05:37 AM   #21
TNT is offline TNT  Sweden
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Quote:
Originally Posted by gmarsh View Post
The Pro is a stereo card this time around.

Given enough interest, and after the stereo Pro design is built and tested, I'll make a PBTL version of it.
Ok I'll check the development a bit more...

//
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Old 11th April 2016, 05:38 AM   #22
TNT is offline TNT  Sweden
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Anyway, getting the order/interest list going. Quote the most recent post and add your name to it if you want something.

loafimus: 4 x bare PBTL PCB + 4 x microcontroller
ChuckT: fully assembled stereo Wiener + fully assembled Pro
DawgNo1: 2x stereo 3118 fully built.
jonners: 1x stereo fully assembled Pro
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Old 11th April 2016, 02:16 PM   #23
gmarsh is offline gmarsh  Canada
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Quote:
Originally Posted by TNT View Post
Ok I'll check the development a bit more...

//
Got a PBTL version half done last night. Wondering what I'm gonna do now with the extra board space gained from ripping out one of the inputs...

I'll keep everyone posted.
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Old 13th April 2016, 11:38 AM   #24
Pyjamas Before Chris is offline Pyjamas Before Chris  Australia
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Anyway, getting the order/interest list going. Quote the most recent post and add your name to it if you want something.

loafimus: 4 x bare PBTL PCB + 4 x microcontroller
ChuckT: fully assembled stereo Wiener + fully assembled Pro
DawgNo1: 2x stereo 3118 fully built.
jonners: 1x stereo fully assembled Pro
Pyjamas Before Chris: 1x stereo fully assembled Pro
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Old 13th April 2016, 12:31 PM   #25
ChuckT is offline ChuckT
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Hi, I am arranging a group buy in my area and I have 12 assembled tpa3118 and 3 Pro assembled so far. I will confirm the details later.
If we don't order the filter kit, we can specify the load impedance put on the board, is that correct?
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Old 13th April 2016, 04:38 PM   #26
adn6244 is offline adn6244  Singapore
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Hi,
May i know what is the output power into 8 ohm for both the pbtl and stereo amp?
Also can it be powered by the $20+ abletec smps ?

Thanks.
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Old 13th April 2016, 05:25 PM   #27
gmarsh is offline gmarsh  Canada
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Quote:
Originally Posted by ChuckT View Post
Hi, I am arranging a group buy in my area and I have 12 assembled tpa3118 and 3 Pro assembled so far. I will confirm the details later.
If we don't order the filter kit, we can specify the load impedance put on the board, is that correct?
Nice... that's a big order. Mind the comment in the first post though, the Wiener Pro is an experimental prototype and there's a chance the first crack at the hardware won't work I guarantee you'll get a working board if you pay for one, but there might be delays.

Generally I install the provided load impedance (4/6/8/whatever) on a fully built board when I build and test it. And if you order a filter kit, I include the other inductors/capacitors that are needed need to change it to any of the other load impedances.

In theory I could test the card, desolder the output filter and let the end user stuff in the parts that they choose...
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Old 13th April 2016, 08:13 PM   #28
gmarsh is offline gmarsh  Canada
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Quote:
Originally Posted by adn6244 View Post
Hi,
May i know what is the output power into 8 ohm for both the pbtl and stereo amp?
Also can it be powered by the $20+ abletec smps ?

Thanks.
Output power depends on the power supply voltage.

12V supply: 30W peak/15W RMS sine into a 4 ohm load. 15W/7.5W into 8 ohms.
24V supply: 120W peak/60W RMS into 4 ohms, 60W/30W into 8 ohms.

Got a link to the Abletec supply?
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Old 14th April 2016, 12:54 AM   #29
adn6244 is offline adn6244  Singapore
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Quote:
Originally Posted by gmarsh View Post
Output power depends on the power supply voltage.

12V supply: 30W peak/15W RMS sine into a 4 ohm load. 15W/7.5W into 8 ohms.
24V supply: 120W peak/60W RMS into 4 ohms, 60W/30W into 8 ohms.

Got a link to the Abletec supply?
Abletec Smps

Guess it won't as the smps has 53v, need a step down to get 24v. 60w with 24v psu is good enough though.

Thanks for the info.
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Old 14th April 2016, 01:34 AM   #30
comickitkit is offline comickitkit  Macao
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is it possible to order a board with 16 ohm output impedence? or the filter kit already have component to built 19 ohm myself?
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