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Class D Switching Power Amplifiers and Power D/A conversion

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Old 16th December 2010, 07:41 AM   #1181
Havoc08 is offline Havoc08  Denmark
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Quote:
Originally Posted by EvilYoda View Post
Hey all, I just stumbled upon these amps...does anybody have a "finished" (doesn't have to be pretty) picture I can look at? I just want to see what type of connections are needed after I receive the amp and power supply. Thanks.
Tjeck the page before this for an image of a finished amp
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Old 16th December 2010, 02:52 PM   #1182
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Quote:
Originally Posted by EvilYoda View Post
Hey all, I just stumbled upon these amps...does anybody have a "finished" (doesn't have to be pretty) picture I can look at? I just want to see what type of connections are needed after I receive the amp and power supply. Thanks.
See thread 462 for an owner's manual for the V2 (what became the T2). It has a photo labelling the hookups. I am sure Nick, who posted that thread and runs the retail side of hifmediy can direct you to more info about their other products.

http://steinar.eu/tk2050/v2manual.pdf
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Old 16th December 2010, 10:21 PM   #1183
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Quote:
Originally Posted by bdbender View Post
See thread 462 for an owner's manual for the V2 (what became the T2). It has a photo labelling the hookups. I am sure Nick, who posted that thread and runs the retail side of hifmediy can direct you to more info about their other products.

http://steinar.eu/tk2050/v2manual.pdf
Is there something that detailed for the T1? I recently ordered a T1 bundle and would not mind looking at a schematic.
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Old 16th December 2010, 10:49 PM   #1184
alkasar is offline alkasar  France
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Quote:
Originally Posted by progress0r View Post
Is there something that detailed for the T1? I recently ordered a T1 bundle and would not mind looking at a schematic.
Schematics are published on the web site in the Support / Download section
Hifimediy| Downloads
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Old 16th December 2010, 10:56 PM   #1185
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Quote:
Originally Posted by bdbender View Post
See thread 462 for an owner's manual for the V2 (what became the T2). It has a photo labelling the hookups. I am sure Nick, who posted that thread and runs the retail side of hifmediy can direct you to more info about their other products.

http://steinar.eu/tk2050/v2manual.pdf
Awesome, thanks.
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Old 17th December 2010, 11:36 PM   #1186
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Default Input sensitivity

Input sensitivity for full power 1.5V is the usual in hifimediy amps.
Why this value? Is it standard? WHere is it taken from?

Sorry if it is a dumb question but all we have a lot to learn.
Fernando
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Old 18th December 2010, 11:48 AM   #1187
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Quote:
Originally Posted by mravlca View Post
Hifimediy can i ask you when the T4 will be ready and if you have maybe evaluated the end price for it? Now I have yours T1 and I am very satisfied with it.

Regards Aleš
I already have some T4 boards now and you can contact Nick for more detail. And thanks for your support
Quote:
Originally Posted by progress0r View Post
Is that a actuated/motorized potentiometer and a VFD display header (or maybe an IR and control panel header)?

I wonder how the sound of a sta517B-based amp differs from one with sta510A?
Hi, I made some kinds of potentiometer and some of them are ready, some of them controlled with IR, but I don't have VFD project now, may be later.
I thinks T1 through T4 are similar except power. hope you like them all
Quote:
Originally Posted by bdbender View Post
I vote for that!
Thanks for your vote. And the news is I just tested the switch function and it works good. So I will start T4e( an extend module or board that can be connect to T4 to accept digital inputs) soon.
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Old 18th December 2010, 11:59 AM   #1188
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Quote:
Originally Posted by Fernando1958 View Post
Input sensitivity for full power 1.5V is the usual in hifimediy amps.
Why this value? Is it standard? WHere is it taken from?

Sorry if it is a dumb question but all we have a lot to learn.
Fernando
1.5V is determined by TC2000. And all amps have their full power sensitivity. Don't be very care about this parameter and you also can use a pot or attenuator if necessary.
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Old 22nd December 2010, 11:14 AM   #1189
von Ah is online now von Ah  United States
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What would cause the relays to rapidly click on and off in succession when powered on? MY T2 board now won't power up properly now that I've put it in a chassis. Everything worked fine months ago when I tested the board...

Last edited by von Ah; 22nd December 2010 at 11:38 AM.
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Old 22nd December 2010, 12:21 PM   #1190
von Ah is online now von Ah  United States
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The rapid clicking goes continuously until I disconnect the SMPS from the AC mains.
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