Newer versions skip it, like this one:
New:
NEW DC48V LM2575S 12 TPA3255 300W + 300W Class D audio Digital Amplifier Board-in Amplifier from Consumer Electronics on Aliexpress.com | Alibaba Group
Old:
Image-Source: TI Purepath HD 150 Amplifier Module Class D TPA3255 2x110W 8 Ohm - Audiophonics
New:
NEW DC48V LM2575S 12 TPA3255 300W + 300W Class D audio Digital Amplifier Board-in Amplifier from Consumer Electronics on Aliexpress.com | Alibaba Group
Old:
Image-Source: TI Purepath HD 150 Amplifier Module Class D TPA3255 2x110W 8 Ohm - Audiophonics
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Oh, ok. Thank you for the detailed info. I guess I will have to wait until they arrive as I dont think the picture from Banggood can be trusted.
Thanks!
I'd go for a LM2596(HV) due to higher switching frequency, which "should" result in less ripple.
i am sorry. i miss match the versions
T version-> fixed output voltage - 40V max.
S version - adjustable output - 40V max.
HV version > 40V
chris
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What size output core will be good for pre-filter mono configuration of tpa3255? Expected output power is 350 watts. I have source for micrometals -2 material cores. Will T94-2 be good or smaller size will be sufficient?
I have seen amplifiers from many manufacturers that use T106-2 for more than 350watts per channel. So for TPA3255 in mono configuration 2 T106-2 will be required. Isn't that more than what is needed for the mono 350 watts setup?
Also i want 350 watts mono output from TPA3255 so 2 pieces of T94-2 will be used. Will it cause any problem? Just curious!!
EVM is using 106-2 as well. The smaller the core the more distortion you get at higher output levels due to core saturation.
Sorry for repetitive questions but evm handles more power than what i intend to get, isn't it right?
The TPA3255 is capable of pushing up to 600W in 2R in PBTL configuration. When using the EVM in PBTL the inductors are paralleled, so they share half of the current. (Every inductors does 300Wrms then) Inductor A+C are in parallel, as well as B+D.
So, when using only 2 inductors overall, T106-2 is the correct answer. You may check the Coilcraft datasheet as well:
https://www.coilcraft.com/pdfs/ma5172.pdf
So, when using only 2 inductors overall, T106-2 is the correct answer. You may check the Coilcraft datasheet as well:
https://www.coilcraft.com/pdfs/ma5172.pdf
Ok. I checked that. Evm has coilcraft inductors. For lower power just like what i want. Seems like T94 for 175 watts is a good choice then.
I am thinking about building multiple multichannel amp for home cinema as this Yuan Jing is currently on sale.
Yuan Jing Audio - ON SALE! - TPA3255 High Performance Ultra-HD Class-D Stereo Amplifier Board [315W x 2] - USD $62.50
I read about problems running without load, which can happen for Atmos / Auro ceiling speakers for long time, is this still an issue?
Is there a power supply recommendation for 5 or 6 channel builds? I will drive 15 active 2 way speaker = 30 channel needed.
Yuan Jing Audio - ON SALE! - TPA3255 High Performance Ultra-HD Class-D Stereo Amplifier Board [315W x 2] - USD $62.50
I read about problems running without load, which can happen for Atmos / Auro ceiling speakers for long time, is this still an issue?
Is there a power supply recommendation for 5 or 6 channel builds? I will drive 15 active 2 way speaker = 30 channel needed.
Hello, I'm planning to build a nice subwoofer for my room.
I don't know the power I want yet, but something around 200-300w 10" sub. Is this TPA3255 the most recomended amplifier at the moment or do you recomend another chip?
I still need to buy the power supply and the crossover (but this is for another topic)
Thank you very much in advance. 🙂
I don't know the power I want yet, but something around 200-300w 10" sub. Is this TPA3255 the most recomended amplifier at the moment or do you recomend another chip?
I still need to buy the power supply and the crossover (but this is for another topic)
Thank you very much in advance. 🙂
Hello. I ask you for advice and help with an amplifier with an aliexpress. got this one. The problem is that I use it with 2 columns without a subwoofer. and here is a list of my problems. 1. This amplifier at the outputs has a constant high-frequency noise when it is turned on. because of this, column hiss very much. 2. The bass knob does not work, does not adjust the level of the bass in the speakers. 3. Power. at 30V from the power supply unit consumes only 0.09 And when the sound is playing. 4. wrong separation by high low. very ringing squeaky sound with a muffled middle and a stupid bass flopping. Is it possible to make 2.0 of it and put the sound in order?
IMG_1453.PNG - Google Drive
An externally hosted image should be here but it was not working when we last tested it.
Hi Ruslan
i do not have this amp...anatoliy had this and is happy with this...look at some pages before
The problem is that I use it with 2 columns without a subwoofer.
do not use an Class D amp without a load! you are not connect a sub so please use a 10-20R 5W at this connector.
This amplifier at the outputs has a constant high-frequency noise when it is turned on. because of this, column hiss very much.
try to check seperatly of it is depending on different source or/and the BT module is adding some noise
The bass knob does not work, does not adjust the level of the bass in the speakers.
maybe i am wrong....i personally think that the bass knob is for the sub crossover frequency/voume- but you didi not connect and the other speakers therefore not reacting...its ok 😉
3. Power. at 30V from the power supply unit consumes only 0.09 And when the sound is playing.
the power consumption about 2,7Watt is ok. normal listening is about 1W at home. but iam not really sure what is your problem here...
4. wrong separation by high low
no idea what you mean...
Is it possible to make 2.0 of it and put the sound in order
see point 1, use a 5W resostore on the sub connector
chris