[Mortsnets]

For those of us who cannot DIY, who makes complete amps with these new chips, just TBI?

[wushuliu]

For those of us who cannot DIY, who makes complete amps with these new chips, just TBI?

Yep.

[lacro]

For those of us who cannot DIY, who makes complete amps with these new chips, just TBI?

Actually the Sure TPA 3110 is pretty much plug-n-play. Not much DYI involved. It may not be contained in a box, but the Power jack is on the board (2.1 or 2.5 not sure which one). The stereo input is an 1/8" jack, and if you can turn a screwdriver the screw type speaker terminals are also on the board.
Swapping the PS caps is not essential to get great sound right from the start, but it does make a difference. Soo... for $10 you can see/hear what we are talking about without using a soldering iron, a drill, a saw, etc. Just plug-n-play and enjoy

[shadowlight]

Any recommendation on places to buy modular case.  I used to have a link but lost it.  Went to Radio Shack and looked at the project boxes and they were cheap plastic.

[wushuliu]

Any recommendation on places to buy modular case.  I used to have a link but lost it.  Went to Radio Shack and looked at the project boxes and they were cheap plastic.

http://www.ebay.com/itm/09-05-Full-Aluminum-Enclosure-mini-AMP-case-Preamp-box-DIY-BOX-PSU-chassis-/121138713204?pt=US_Amplifier_Parts_Components&hash=item1c346e1274

[rhing]

Any recommendation on places to buy modular case.  I used to have a link but lost it.  Went to Radio Shack and looked at the project boxes and they were cheap plastic.

I highly recommend the split body Aluminum enclosures from Context Engineering. They're reasonably priced compared to buying one from China via eBay and paying for shipping. The quality is very high.

http://www.sanjosescientific.com/servlet/the-PRINTED-CIRCUIT-BOARD-ENCLOSURES--PCB-BOXES/Categories

I used one for my TDA7297 amp build, and it turned out very nicely. I am starting a build of a TPA3110D2 amp in a similar enclosure.







You will also need the following tools to drill the holes for your connectors and volume pot/stepped attenuator:

• Center punch
• Good 12V-18V cordless drill, drill bit set and a stepped drill bit
• A good de-burring tool is really handy to get really clean holes
• A reamer tool is also good for making slightly larger openings without overdoing it with a drill

I also have a nice Ryobi table top drill press that I purchased for $45 through Craigslist, but a steady hand with a powerful hand drill works well with 1/16-3/32" thick Aluminum. The drill press is really handy for really precise drilling through thick wall materials.

[shadowlight]

Those case's look similar to the ones I had the link for. 

Thx

[wushuliu]

For those who don't have the tools to drill here are some other options. A little more expensive and the metal is not as thick, but for what you get it's a great price. Plus roomy enough to accommodate other things like preamp or larger amps.

At some point I'll get a couple of these, just to make life easier. My enclosure skills are terrible. This seller has lots of other enclosures as well and a good rep. Cheap and cheerful diy candy store. Imagine the TPA3110 in the last one!




http://www.ebay.com/itm/B-2107-aluminum-power-amplifier-enclosure-chassis-AMP-box-with-heatsink-/121138703239?pt=US_Amplifier_Parts_Components&hash=item1c346deb87



http://www.ebay.com/itm/Full-aluminum-mini-Power-amplifier-Case-Box-Diy-Amp-enclosure-/110859346871?pt=US_Amplifier_Parts_Components&hash=item19cfbb63b7



http://www.ebay.com/itm/2412B-Full-Aluminum-Enclosure-mini-AMP-case-power-amplifier-box-chassis-/400523693385?pt=US_Amplifier_Parts_Components&hash=item5d41128d49

[shadowlight]

Found the link for the enclosure that I had - http://www.gkphotonics.com/gk8.html and their ebay store

[Folsom]

What size are the supply caps on the Sure TPA3110?

[wushuliu]

What size are the supply caps on the Sure TPA3110?

I think 220uf.

[wushuliu]

For those looking to get more power and/or have less efficient speakers, there is a board available for 100w mono use as well. Usable down to 2ohms! This is probably the best looking board of the bunch in terms of build quality and layout. I was waiting to read some feedback on it before recommending. Mine has not arrived yet. Someone just posted very positive thoughts on it at diyaudio. It's a whopping $10 more. Breaking the bank at $30 

http://www.ebay.com/itm/Amplifier-board-TPA3116-Class-D-2x50W-or-1x100W-Stereo-or-Full-PBTL-/161186376340?pt=US_Amplifier_Parts_Components&hash=item258774ea94

[shadowlight]

Question for folks who are more familiar with the modding.  Why/When would you use a 35V power supply cap instead of the 25v.  The reason for the question is that on the TDA7293 thread folks were talking about replacing the 25V cap with 35V, while in this thread folks are sticking with 25V.  From the reading it seems that TDA7293 has ability to use 24V power supply which means that using 25V ps cap does not leave much room.

Thx and Happy New Year

[wushuliu]

Question for folks who are more familiar with the modding.  Why/When would you use a 35V power supply cap instead of the 25v.  The reason for the question is that on the TDA7293 thread folks were talking about replacing the 25V cap with 35V, while in this thread folks are sticking with 25V.  From the reading it seems that TDA7293 has ability to use 24V power supply which means that using 25V ps cap does not leave much room.

Thx and Happy New Year

The TPA sweet spot is in the 12-21v range, so the 25v works fine. So far consensus is the TPA does not sound quite as good at 24v. Increasing voltage does potentially reduce ESR so if replacing PS caps, using higher voltage may be beneficial.

[raysracing]

Wushuilu, figures I ordered a 3116 with the unwanted volume pot a few days ago without seeing this one.

Ray

[wushuliu]

Wushuilu, figures I ordered a 3116 with the unwanted volume pot a few days ago without seeing this one.

Ray

Lol, it can be overwhelming sorting through all the boards/options.

[shadowlight]

The TPA sweet spot is in the 12-21v range, so the 25v works fine. So far consensus is the TPA does not sound quite as good at 24v. Increasing voltage does potentially reduce ESR so if replacing PS caps, using higher voltage may be beneficial.

So replacing the 25V on the TPA board with 35V is ok to do.  Similar question about 1500uf v/s 2200uf.  I order both Panasonic FM and FR series caps yesterday in various combination, 25V (1500uf, 2200uf) and 35V (1500uf, 2200uf).  Not sure which is better but the numbers on the FR looked better

[lacro]

What size are the supply caps on the Sure TPA3110?

[rhing]

So replacing the 25V on the TPA board with 35V is ok to do.  Similar question about 1500uf v/s 2200uf.  I order both Panasonic FM and FR series caps yesterday in various combination, 25V (1500uf, 2200uf) and 35V (1500uf, 2200uf).  Not sure which is better but the numbers on the FR looked better

That's fine to use 35V vs. 25V caps. With electrolytic caps, I generally use a voltage rating just above what I think my maximum voltage could ever be. As for Panasonic FM vs. FR, they're very similar with the FR series representing Panasonic's newest low ESR series Aluminum electrolytic caps. These should work well for amplifier power supply applications.

For those looking to get more power and/or have less efficient speakers, there is a board available for 100w mono use as well. Usable down to 2ohms! This is probably the best looking board of the bunch in terms of build quality and layout. I was waiting to read some feedback on it before recommending. Mine has not arrived yet. Someone just posted very positive thoughts on it at diyaudio. It's a whopping $10 more. Breaking the bank at $30 

http://www.ebay.com/itm/Amplifier-board-TPA3116-Class-D-2x50W-or-1x100W-Stereo-or-Full-PBTL-/161186376340?pt=US_Amplifier_Parts_Components&hash=item258774ea94

Thanks for the heads-up on these boards. They look nice, but like you, I wanted to wait and see what the verdict was on these boards. I think they're going fast.

[wushuliu]

Another cheap enclosure option for those without drilling tools:

http://www.ebay.com/itm/Audio-Amplifier-DIY-Suite-Volume-Control-IC-Audio-Case-Enclosure-Breadboard-PC-/110932772470?pt=US_Amplifier_Parts_Components&hash=item19d41bc676