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Old 23rd June 2012, 02:21 PM   #1
Lumi71 is offline Lumi71  Germany
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Default Best Class D Amp for full range

hi,
i know this has been asked a few times but anyway i would like to have some sugestions.
i am an absolute beginner in diy amps and i am searching for a amp board for active speaker (two stereo power amps). so the modules should be very easy to assemble, and should be availible as a kit, because i really have no idea about choosing the parts that match.

i like a very dynamic, clear sound, yet it should of course not be harsh.


also the amp should be able to drive at least 3 ohm. power should be at least 120/8ohm.
i heard good things about the boards with the irs2092, like L15-L25d.
also found the abletec boards which have the advance of being ready for use as they come with integrated power supply. does someone have experience with the abletec 0300 mono boards?

other alternatives?
budget is around 600 usd for both amps for all parts, so something like hxpex ncore is not in the range....
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Old 24th June 2012, 10:03 PM   #2
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As far as Class D amplifier ready-to-go pre-built things go something around the TAS5630 sounds like it might be suitable. In mono mode they are capable of driving 2 ohm loads and will deliver roughly the amount of power you require.

You would of course need 2 for dual mono and then a power supply.

Class D Audio TI-600 Amplifier - Class D Audio Amplifiers

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Old 25th June 2012, 01:18 AM   #3
blossom is offline blossom  New Zealand
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This guys has done alot with the tas5630 a few designs include smps all in one.

Have not seen to much talk about these products on the forum something I’ve always keep an eye out for.

Sinewave Electronics Co.,Limited Sinewave electronics co.,limited

and shop here

CLASS D MODULES - Shop Cheap CLASS D MODULES from China CLASS D MODULES Suppliers at Amplifier store on Aliexpress.com

He is a forum member(authlxl) and has a couple of threads in the vendors forums and comments on 5630 threads. By reading the thread it is possible to contact him directly.

This being the biggest and most informative thread.
Tas5630+smps+aluminum case finished!new year coming!
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Old 27th June 2012, 03:27 PM   #4
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I use ClassDAudio amps. Class D Audio Home page
Clean, clear sound.
Inexpensive. All boards built.

For best sound:
Once gain is set replace with Vishay resistors. ($25)
Solder power supply connections to board.
Solder speaker connections to board.
Solder inputs to board.
(Do not use the screw connections they have a "blah" sound)

All the Class D Audio amps below are 2 channels:

$285-$370 SDS amps and power supplies:
Class D Audio Amplifier Kits

$235-$265 SDS AMPS only.
Class D Audio Class D Audio Amplifiers

Last edited by makingmoney; 27th June 2012 at 03:30 PM.
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Old 28th June 2012, 09:41 AM   #5
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Quote:
Originally Posted by makingmoney View Post
I use ClassDAudio amps. Class D Audio Home page
Clean, clear sound.
Inexpensive. All boards built.

For best sound:
Once gain is set replace with Vishay resistors. ($25)
Solder power supply connections to board.
Solder speaker connections to board.
Solder inputs to board.
(Do not use the screw connections they have a "blah" sound)

All the Class D Audio amps below are 2 channels:

$285-$370 SDS amps and power supplies:
Class D Audio Amplifier Kits

$235-$265 SDS AMPS only.
Class D Audio Class D Audio Amplifiers
I 'd strongly guess that screw connections don't have any "sound".
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Old 28th June 2012, 10:17 AM   #6
qusp is offline qusp  Australia
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hmm what does blah sound like? a word with indeterminate meaning that says something different to each person to describe a subjective experience that is different for every person, with music that is different for every person. … this description 'leave me cold'
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Old 28th June 2012, 10:36 AM   #7
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Quote:
Originally Posted by ViennaTom View Post
I 'd strongly guess that screw connections don't have any "sound".
Agree but screw connections are not airtight, and will over time turn in to a bad connection. Screw connections will also be looser over time, since cabels get warm and cold, and that will loosen the screws.

You can easily get over these problems, but you have to open the amp and clean the cable ends and fasten the screws.
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Old 28th June 2012, 11:53 AM   #8
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Quote:
Originally Posted by Kjeldsen View Post
Agree but screw connections are not airtight, and will over time turn in to a bad connection. Screw connections will also be looser over time, since cabels get warm and cold, and that will loosen the screws.

You can easily get over these problems, but you have to open the amp and clean the cable ends and fasten the screws.
Definitely.
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Old 28th June 2012, 12:19 PM   #9
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Since I didn't measure before and after soldering the connections, the placebo effect resulted in my ears.

Aware of how foolish I've been I decided to make my speaker cables out of 60 one inch pieces of shirt wire hangers. Each piece connected with another using a steel screw terminal connector for a total of 60 terminals per positive leg and 60 per negative leg.

The result should sound the same as any speaker cable.

By "blah" I meant dull and uninteresting. Like this post.

Back to the topic:
I like my ConnexElectronic power supply.
I haven't tried their amps, but they might be worth looking at.
http://connexelectronic.com/index.php/cPath/39?osCsid=fb4ll191b9pamiqetn5d6lkff2
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Old 28th June 2012, 12:55 PM   #10
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be serious if you wan't to be taken serious.
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