Or NEW ICEPOWER Circuit Amplifier Board Module ICE50ASX2 Power Amplifier Board | eBay
It's actually TPA3251 or 55 inside
It's actually TPA3251 or 55 inside
It's not. The 50ASX2 chip was around a fair while before Ti released the TPA325* series.
There is an IcePower model that uses a TPA325*, but it's not this one.
The seller did not mention a TPA325* chip...
IcePower/B&O may well be Danish, and their products designed in Denmark, but where do you think their products are (mass) produced?
I'm using a chinese no-name TPA3255 amplifier from aliexpress.com
The amplifier has sounded fine for days.
But, I would not recommend this to others. I don't trust no-name products.
The amplifier has sounded fine for days.
But, I would not recommend this to others. I don't trust no-name products.
Has been 4 years since these posts, but Id like to hear about these 3255, are they still working? i'd like to buy a cheap one to have it, but i'd prefer to have one to withstand 50V. Form what I heard, some have a fake 12v converter which blow up.
Do someone know/heard of the 3255 chip itself is fake? i could not find reliable info or consistent complains about it. And there are several years already. No chinese nasty copies in the market?
Do someone know/heard of the 3255 chip itself is fake? i could not find reliable info or consistent complains about it. And there are several years already. No chinese nasty copies in the market?
addysoftware - I have heard no reports of "fake" 3255 chips. But I guess it is possible.
My old Hafler DH-200 amp needs repair. So I am putting together a low budget 3255 amp to use for the interim.
I purchased this unit (USD $22)
https://www.ebay.com/itm/167211150003
Description elsewhere of this unit proclaims:
"Now It's the latest version , it is the product after the new model change in 2023, which has completely improved the common problem of high voltage protection. The use of 50V is also completely normal, and the use of materials is also more feverish. The auxiliary power supply uses Class A linear power supply, which is more dynamic, and the sound quality is significantly improved!"
I'll have to evaluate "more feverish" and "sound quality is significantly improved!"
I will use this SMPS 48V 6A (USD $19):
https://www.temu.com/high-power-ac-...on-3a-5a-8a-9a-options-g-601099717210299.html
If this supply is noisy I will do some output filtering. Kiss Analog (on youtube) did some testing and demonstrated that the 3255 generally does a good job at rejecting power supply noise. But I still think it is worth minimizing. Not my first rodeo reducing noise on a SMPS, I have a plan.
I have a pair of LME49720 op amps to swap into the board, as well as others to try.
For a enclosure I went to a local second hand store and bought a old Direct TV receiver for $5 and gutted it.
I'll cut a piece of Walnut for the front face.
I'll post my build and test here as soon as the items arrive. Probably will arrive in about two weeks It won't take me long to assemble.
Stay tuned.
My old Hafler DH-200 amp needs repair. So I am putting together a low budget 3255 amp to use for the interim.
I purchased this unit (USD $22)
https://www.ebay.com/itm/167211150003
Description elsewhere of this unit proclaims:
"Now It's the latest version , it is the product after the new model change in 2023, which has completely improved the common problem of high voltage protection. The use of 50V is also completely normal, and the use of materials is also more feverish. The auxiliary power supply uses Class A linear power supply, which is more dynamic, and the sound quality is significantly improved!"
I'll have to evaluate "more feverish" and "sound quality is significantly improved!"
I will use this SMPS 48V 6A (USD $19):
https://www.temu.com/high-power-ac-...on-3a-5a-8a-9a-options-g-601099717210299.html
If this supply is noisy I will do some output filtering. Kiss Analog (on youtube) did some testing and demonstrated that the 3255 generally does a good job at rejecting power supply noise. But I still think it is worth minimizing. Not my first rodeo reducing noise on a SMPS, I have a plan.
I have a pair of LME49720 op amps to swap into the board, as well as others to try.
For a enclosure I went to a local second hand store and bought a old Direct TV receiver for $5 and gutted it.
I'll cut a piece of Walnut for the front face.
I'll post my build and test here as soon as the items arrive. Probably will arrive in about two weeks It won't take me long to assemble.
Stay tuned.
