GB pre-order update
Thanks Tommost! A clarification - do you mean two units, each stereo when you say stereo pair, or 1 unit as it provides stereo already? I have you down for 2 units at present but we can *change of course.
34 units*
Looks like we have enough critical mass for me to put up the pre-orders listing on my Etsy shop.
It’s nice to see this project finally coming to realization.
Thanks Tommost! A clarification - do you mean two units, each stereo when you say stereo pair, or 1 unit as it provides stereo already? I have you down for 2 units at present but we can *change of course.
34 units*
Looks like we have enough critical mass for me to put up the pre-orders listing on my Etsy shop.
It’s nice to see this project finally coming to realization.
Some photos of the latest listening session and some closeups showing the high quality components such as flat copper high current CoilCraft inductors and Wima MKS output filter caps, NTC and Wima MKS ground loop breaker for the protective earth (PE) connection to chassis ground/mains earth connection. Note that this is the prototype board, and the production boards have updated and enhanced silkscreen to show inputs A,B,C,D and outputs A,B,C,D and a cheat sheet for setting the 7 DIP switches for modes of operation and modulation frequency, master/slave, etc.
Testing out with 10F/RS225 FAST speakers in speaker lab:
Closeup with 1200w DCDC converter:
Testing out with 10F/RS225 FAST speakers in speaker lab:
Closeup with 1200w DCDC converter:
Attachments
Pre-orders for this GB are now being taken in my shop here:
RTR TPA3255 Reference Class D amplifier | Etsy
RTR TPA3255 Reference Class D amplifier | Etsy
I have been listening to it all day and it sounds fantastic! Very hard to beat for combination of sound quality, ultra-low noise (actually, it is the quietest speaker amp I have except for the MOFO, which is closer to a headphone amp), high power for gobs of headroom, compactness, very low heat output, can be battery powered! Super amp and very glad I did this project! I am hoping to put it all into everyone's hands soon (if you are participating in this GB).
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Hi Folks,
If your name is on the interest list and you want to still be part of the GB, please place your pre-orders so that we can get the assembly of these amps started. Thanks to all of you who already placed your order.
Thanks,
X
If your name is on the interest list and you want to still be part of the GB, please place your pre-orders so that we can get the assembly of these amps started. Thanks to all of you who already placed your order.
Thanks,
X
Those are just M3 standoffs. One is plastic and other is brass screwed together for extra length since I didn’t have right length. The four corner screw holes for standoffs are electrically isolated from board ground. There is 5th one that is grounded in the back.
Hi Wineds,
No, I am still waiting for some folks on the list to place their preorder. Please sign up and place a preorder of you are interested.
Thanks,
X
No, I am still waiting for some folks on the list to place their preorder. Please sign up and place a preorder of you are interested.
Thanks,
X
GB Pre-Order Status Update
For folks who are signed up below but have not yet placed your ore-order yet, or if you are interested in joining the GB, please do so by tomorrow as I need to place the order with the assembly house. If you are not part of the GB and decide to get them from my shop later, the price will be substantially higher.
.
For folks who are signed up below but have not yet placed your ore-order yet, or if you are interested in joining the GB, please do so by tomorrow as I need to place the order with the assembly house. If you are not part of the GB and decide to get them from my shop later, the price will be substantially higher.
.
- I would Really Wanted to get in on the GB , but just about everything that could break, did break around here last month - 😀 - the 65 in. TV died, Blendtech blender died, garbage disposer died , my main amplifier rig was sabotaged and died , the car died and was in the shop -- TWICE , also 1,300 in dentist bills , and Christmas happened ..... and we still need 4 new tires - 
- how hard is it to solder the SMD components for the blank PCBs ??? . . . . . . money is just a little tight at the moment : )
- how hard is it to solder the SMD components for the blank PCBs ??? . . . . . . money is just a little tight at the moment : )
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