Hi fellow FMs,
After the successful builds of Class-D amplifiers like the TPA3118 chip based Amp, I built the TPA3251 chip based Amp. When this was successful, I was enthused enough to try the TPA3255 based chip. I'm happy to share with all of you that this last build was the most musical, transparent, noiseless and satisfying build of them all. It has reinforced my belief in Class D technology. Please be assured that this technology is the future.
Ingredients:
AMPLIFIER::
TPA3255 Evaluation module from Texas Instruments,
Meanwell LRS-48-360 SMPS,
Gold plated speaker terminals,
Power socket with EMI suppression,
PLAYER::
Raspberry Pi 3B,
Allo Boss DAC ver 1.2,
7in LCD Touchscreen,
Good quality shielded wire,
IFI Audio 5v 3A adapter for Raspberry Pi,
Linear regulated power supply for Boss DAC, 5V 5A, using LT1083 LDO regulator module bought from Amazon.in and 20000uf cap bank..
I have used two cabinets, one housing the Amp and Player, and another housing the linear power supply. The Meanwell is currently in the same box as the player.
The end result is fantastic. The best sound *I've heard* so far. Treble is clear, so is deep base. No need at all for contraptions like Tone Control. No question of any hum and hiss, no matter how close your ears are pressed to the speakers.
The cost is about Rs 35,000 for the whole thing. This system beats EmotivaAmp+Speakers and a DenonHT+KlipschFSTs on a simple test which consisted of listening to same tracks on each system.
I recommend other enthusiasts to build this one. It easy to build and sound is fantastic.
After the successful builds of Class-D amplifiers like the TPA3118 chip based Amp, I built the TPA3251 chip based Amp. When this was successful, I was enthused enough to try the TPA3255 based chip. I'm happy to share with all of you that this last build was the most musical, transparent, noiseless and satisfying build of them all. It has reinforced my belief in Class D technology. Please be assured that this technology is the future.
Ingredients:
AMPLIFIER::
TPA3255 Evaluation module from Texas Instruments,
Meanwell LRS-48-360 SMPS,
Gold plated speaker terminals,
Power socket with EMI suppression,
PLAYER::
Raspberry Pi 3B,
Allo Boss DAC ver 1.2,
7in LCD Touchscreen,
Good quality shielded wire,
IFI Audio 5v 3A adapter for Raspberry Pi,
Linear regulated power supply for Boss DAC, 5V 5A, using LT1083 LDO regulator module bought from Amazon.in and 20000uf cap bank..
I have used two cabinets, one housing the Amp and Player, and another housing the linear power supply. The Meanwell is currently in the same box as the player.
The end result is fantastic. The best sound *I've heard* so far. Treble is clear, so is deep base. No need at all for contraptions like Tone Control. No question of any hum and hiss, no matter how close your ears are pressed to the speakers.
The cost is about Rs 35,000 for the whole thing. This system beats EmotivaAmp+Speakers and a DenonHT+KlipschFSTs on a simple test which consisted of listening to same tracks on each system.
I recommend other enthusiasts to build this one. It easy to build and sound is fantastic.
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