For Sale, BPA300 300W Dual Mono Blocks Chip Amplifier assembled kit with all parts (incl. 12 LM3886T chips)
This kit is to build a pair of 300W monoblocks using bridged LM3886T Chipamp module and DRV134 SE-Balanced drivers. The idea was to have two 150W amp module made of three bridged LM3886T, driven in opposite polarity by a DRV134 converter card, that splits the Single Ended RCA amp input in Phase+ and Phase- signals that drive the 150W. So you have two 150W bridged POS and NEG, giving you a huge 300W output.
I made my one DRV134 interface card with two DRV134, making it a stereo input module, because I was planning to build a stereo amp, not a pair of monoblock.
But I have all the part and PCB to build an extra stereo DRV134 card, so you can use one in each monoblocks, just use one side of each pcb.
Each DRV134 interface PCB has local +/-15V supplies, with CRC pre-filter, and optional drop resistor depending on the amp supply, so this small interface is running directly from the main amp supply.
The kit inludes 4x 150W amp modules with professional made PCB and very high quality parts (Mundorf cap, Vishay WSR-3 resistors, etc) and one assembled DRV134, one extra DRV134 bare pcb and parts to assemble. Can't find the DRV134 chip, you'll need to buy them, but they are easy to source from Mouser or Digikey... The Amp modules are pre-assembled by me, very good soldering, made to last.
All parts are original bought from Mouser and Digikey at the time. Project article, full schematic and BOM included with the sale.
The monblock amp assembled pictured are for reference only.
To complete the project you need to buy the DRV134 chips and the amp +/-30 power supply (transfo, rectifier, caps), stereo or monoblock configuration, you choice...
The kit has 12 LM3886T chip s in total, the last pair of original LM3886T I bought this year, from Germany costed me 56$...
Keep in mind that the LM3886T is now difficult to source as well...
Great kit, but need to reduce my projects. sorry to let this one go. Your chance for a great kit...
Asking 300U$ o.b.o + shipping + 3.5% Paypal fee
Thanks for looking
SB
This kit is to build a pair of 300W monoblocks using bridged LM3886T Chipamp module and DRV134 SE-Balanced drivers. The idea was to have two 150W amp module made of three bridged LM3886T, driven in opposite polarity by a DRV134 converter card, that splits the Single Ended RCA amp input in Phase+ and Phase- signals that drive the 150W. So you have two 150W bridged POS and NEG, giving you a huge 300W output.
I made my one DRV134 interface card with two DRV134, making it a stereo input module, because I was planning to build a stereo amp, not a pair of monoblock.
But I have all the part and PCB to build an extra stereo DRV134 card, so you can use one in each monoblocks, just use one side of each pcb.
Each DRV134 interface PCB has local +/-15V supplies, with CRC pre-filter, and optional drop resistor depending on the amp supply, so this small interface is running directly from the main amp supply.
The kit inludes 4x 150W amp modules with professional made PCB and very high quality parts (Mundorf cap, Vishay WSR-3 resistors, etc) and one assembled DRV134, one extra DRV134 bare pcb and parts to assemble. Can't find the DRV134 chip, you'll need to buy them, but they are easy to source from Mouser or Digikey... The Amp modules are pre-assembled by me, very good soldering, made to last.
All parts are original bought from Mouser and Digikey at the time. Project article, full schematic and BOM included with the sale.
The monblock amp assembled pictured are for reference only.
To complete the project you need to buy the DRV134 chips and the amp +/-30 power supply (transfo, rectifier, caps), stereo or monoblock configuration, you choice...
The kit has 12 LM3886T chip s in total, the last pair of original LM3886T I bought this year, from Germany costed me 56$...
Keep in mind that the LM3886T is now difficult to source as well...
Great kit, but need to reduce my projects. sorry to let this one go. Your chance for a great kit...
Asking 300U$ o.b.o + shipping + 3.5% Paypal fee
Thanks for looking
SB
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You can also use just a pair of these, without any need for the DRV134 interface, and build a 150W stereo amplifier, Single ended RCA input.
If you buy only a pair, price is a very reasonable 100U$ + shipping + 3.5% Paypal fee
SB
If you buy only a pair, price is a very reasonable 100U$ + shipping + 3.5% Paypal fee
SB
