TPA3255 Reference Design Class D Amp GB

[xrk971]

I just got word that the amps will be completed and shipped to me on Jan 17. This is good news.

 

[Plott]

I just got word that the amps will be completed and shipped to me on Jan 17. This is good news.

Great news, thanks!

 

[xrk971]

Amps have just been shipped via DHL. I should receive in couple of days.

 

[xrk971]

They have arrived! I need to test each one now for functionality.

 

[xrk971]

First TPA3255 RTR amp from this batch with new external 15v mod has been tested and it works great. Sound is lovely - clean and deep and powerful bass. Here is the first board installed in the test and verification chassis:

 

[Plott]

Great, I am looking forward to it

 

[xrk971]

I have let the new TPA3255 amp and BTSB run continuously for 2 days and nights now playing music softly in the lab. Fully burned in and still going strong. I think these PCBA’s are going to be great. Very nicely made super quality boards.

 

[rhing]

Like those Nichicon KW power rail caps and Coil Craft inductors on the amp module, and the Nichicon ES caps in the BTSB Buffer circuits. I am looking forward to building my TPA3255 reference amp.

 

[xrk971]

I just tested 7 more amps by installing them in my Warp-1 amp test rig and playing music on them. They all work and verified to be in good working order.

 

[Plott]

So... could it mean - soon?

 

[xrk971]

Yes, they ship out tomorrow (Monday). I am packing them today. I will include the heat transfer block and your choice of TH or SMT BTSB PCB for the buffer (no SE out). Plus I am including a complimentary set of connectors to allow you to get started quickly with connecting to your project. Molex MiniFit 4pin for PSU connection, Molex MiniFit 6pin for speaker outputs, qnty 2 Molex KK 3 pin for Bal audio input, qnty 1 Molex KK 2 pin for external 15vdc supply. Note that the Molex KK crimp pins are ammo reel type (I ordered by mistake, loose ones much easier to use). But you will have to cut them off the ammo tape with cutters. Hope that’s not a problem.

If you want an LED connector and reset switch connector, you will have to get your own Molex KK 3 pin and 2 pin separately.

 

[Plott]

This is so great news, many thanks I'm really excited!
...and prepared

 

[xrk971]

What are you cutting with those scissors?

 

[Plott]

This is a strong one 💪 for ammo tapes.

 

[rhing]

Yes, they ship out tomorrow (Monday). I am packing them today. I will include the heat transfer block and your choice of TH or SMT BTSB PCB for the buffer (no SE out). Plus I am including a complimentary set of connectors to allow you to get started quickly with connecting to your project. Molex MiniFit 4pin for PSU connection, Molex MiniFit 6pin for speaker outputs, qnty 2 Molex KK 3 pin for Bal audio input, qnty 1 Molex KK 2 pin for external 15vdc supply. Note that the Molex KK crimp pins are ammo reel type (I ordered by mistake, loose ones much easier to use). But you will have to cut them off the ammo tape with cutters. Hope that’s not a problem.

If you want an LED connector and reset switch connector, you will have to get your own Molex KK 3 pin and 2 pin separately.

Thanks for your generosity with the connectors. I already received my Micro Audio SMPS630-S0 power supply. I’m pumped to build this amp!

 

[xrk971]

I just packed up most of the amps that need to ship out tomorrow. I just ran out of boxes. just a few left.

 

[xrk971]

Here’s a video on how to setup and connect your TPA3255 amp for the first time.

 

[turion64]

Hi X, my package came. Thank you.

In the video you mention setting the switches according to the "manual." Is that downloadable somewhere?

Thanks,

Pete

 

[xrk971]

Hi Pete,
Glad you got your amp. Know that each was individually tested and playing music before I shipped it.

Sorry, the “manual” is still being written. In the mean time, you can use the video plus the diagrams for the dip switches and jumper settings here:
https://www.diyaudio.com/community/...ign-class-d-amp-with-pffb.372379/post-7254890

 

[borisbergman]

I've just ordered and received a bcp (REV002, 03 2020 JPS64) without components. I was wondering if there's any easy workaround around these components:

LM5010ASD/NOPB
LM2940IMP-12/NOPB

As they're out of stock everywhere I looked. Also, the TPA3255DDVR is sold out, but TPA3255DDV is not. It seems to be the same thing, isn't it?

Thanks & Regards,