Up for sale, a total of five pairs of unfinished TPA3255 amp boards and power supplies. All brand new. MAKE ME AN OFFER!
Each pair includes
One TICORE260BTL TPA3255 STEREO PFFB 48V (PARTIAL KIT) AMPLIFIER MODULE with the four premium coilcraft VER2923-103KL inductors installed.
One AliExpress 800w 48v low noise power supply (KAYPW Switching Power Supply Light Transformer, as used by XRK on his builds)
To complete each amp board all you needs is:
One ATS-TI1OP-519-C1-R3 heatsink (available on mouser, costs just over £5)
2 pcs OPA1656 or LME49860 on SOIC-8 to DIP-8 adapter ENIG PCB - readily available on the internet
4pc tank caps: 1800uF 63V low impedance (e.g. panasonic EEU-FC1J182, about £2 each)
Plus other ancillaries and chassis etc... which are not included.
You will need to make the following easy amend to the boards as TICore260BTL Version "V1A" has a small fault that when right channel exceeds certain power output, the module goes into protection mode. This is overcome by lifting C17, then connect the ground of C17 to ground plane on C16. (Picture attached)
Good performance from these. Any questions please ask.
Gavin
Oxford, UK
Each pair includes
One TICORE260BTL TPA3255 STEREO PFFB 48V (PARTIAL KIT) AMPLIFIER MODULE with the four premium coilcraft VER2923-103KL inductors installed.
One AliExpress 800w 48v low noise power supply (KAYPW Switching Power Supply Light Transformer, as used by XRK on his builds)
To complete each amp board all you needs is:
One ATS-TI1OP-519-C1-R3 heatsink (available on mouser, costs just over £5)
2 pcs OPA1656 or LME49860 on SOIC-8 to DIP-8 adapter ENIG PCB - readily available on the internet
4pc tank caps: 1800uF 63V low impedance (e.g. panasonic EEU-FC1J182, about £2 each)
Plus other ancillaries and chassis etc... which are not included.
You will need to make the following easy amend to the boards as TICore260BTL Version "V1A" has a small fault that when right channel exceeds certain power output, the module goes into protection mode. This is overcome by lifting C17, then connect the ground of C17 to ground plane on C16. (Picture attached)
Good performance from these. Any questions please ask.
Gavin
Oxford, UK
Attachments
The amp modules will work with any preamp, but some active preamps may have too much gain (meaning only using a small proportion of the volume range available). Perfectly fine for testing though. Passive preamps can also be sourced very cheaply, you can also use software volume control (but be careful).
Chassis - Cheap ones from RScomponents or Audiophonics (probably not as popular now that Audiophonics require a minimum order of £150 post-Brexit).
Chassis - Cheap ones from RScomponents or Audiophonics (probably not as popular now that Audiophonics require a minimum order of £150 post-Brexit).