Tda2030 vs lm1875

[livenicely]

Which one is best sound quality wise and power wise?

[pra3718]

Yes LM1875.

If I have already tda2030a in my drawer or for low investor, tda2030a is good sound for the PRICE )

I will use four IC 1:Tweeter 2:Mid 3&4:Woofer (Bridge) i.e. 18x2+35 = 70Watts per channel. (Please Note that TDA2030A works as power op.amp.) & Same for another channel. It would be better option then 2.1. tda2030a sounds good with correct grounding & good 8 Ohms speaker mounted on floor standing enclosers.
Calculate the project cost :=

12-0-12 5A transformer = xxxxx.xx
tda2030a x 8 = xxxxx.xx
& required Component = xxxxx.xx

OR

LM1875 (off-course is a winner)
18-0-18 5a transformer = xxxxx.xx
LM1875 x 2 = xxxxx.xx
& required Component = xxxxx.xx
Passive crossover with expensive inductors & capacitors.

For above two project, my choice would be tda2030a. BUT if I have money then I would go with lm1875 tri-amp.

[ratza]

The LM1875 wins by far. I haven't looked at both datasheets, but the TDA2030 sounds way too compressed, has very poor dynamics. When I pulled it of the board and replaced it with the LM, the TDA ended in the trash bin.

[livenicely]

Originally Posted by ratza

The LM1875 wins by far. I haven't looked at both datasheets, but the TDA2030 sounds way too compressed, has very poor dynamics. When I pulled it of the board and replaced it with the LM, the TDA ended in the trash bin.

U mean i have a 2.1 channel computer speakers. They cantain tda2030a and pt2353. Can i change tda2030a with lm1875???????????????????????????????????????????? ???????? with out any problem or distortion in sound???????/

[livenicely]

Originally Posted by pra3718

Yes LM1875.

If I have already tda2030a in my drawer or for low investor, tda2030a is good sound for the PRICE )

I will use four IC 1:Tweeter 2:Mid 3&4:Woofer (Bridge) i.e. 18x2+35 = 70Watts per channel. (Please Note that TDA2030A works as power op.amp.) & Same for another channel. It would be better option then 2.1. tda2030a sounds good with correct grounding & good 8 Ohms speaker mounted on floor standing enclosers.
Calculate the project cost :=

12-0-12 5A transformer = xxxxx.xx
tda2030a x 8 = xxxxx.xx
& required Component = xxxxx.xx

OR

LM1875 (off-course is a winner)
18-0-18 5a transformer = xxxxx.xx
LM1875 x 2 = xxxxx.xx
& required Component = xxxxx.xx
Passive crossover with expensive inductors & capacitors.

For above two project, my choice would be tda2030a. BUT if I have money then I would go with lm1875 tri-amp.

plzzzzzzzzzzzz can u provide me best professional and 100% error free quality schematic for tda2030a single and bridge????/ and if pcblay out is there its wonderrrrrrrrrrrrr fulllllllllllllll? Thank u so much i like ur project. and i also wana make the same if u can provide me the best quality schematic. and plz tell me the speaker size for mid and tweeter i mean 8 ohm in 5 inch or 4 inch. and also size of woofer speaker?????????

[ratza]

Originally Posted by livenicely

Can i change tda2030a with lm1875?

Absolutely, without any other changes. The sound will get much much better.

[pra3718]

Can i change tda2030a with lm1875?

I would check ZOBEL & output diodes if exist.

[livenicely]

Originally Posted by pra3718

I would check ZOBEL & output diodes if exist.

Due to the pt2353 i think there is no zobel and i am not sure about diods but if they are as in typical application of tda2030a in datasheet can be removed with lm1875 becoz it is the only difference other than the difference in values of component in lm1875 and tda2030a typical schematic

[ratza]

The diodes can be left there, they do not harm at all.

[livenicely]

Can i use tda2030a pcb for lm1875????????????