Hello everybody,
So I have a very old Sony Hifi Stereo.. from 83' I guess.. Its got a tape player, fm,mw,sw123 and all those outdated stuffs and was in my attic since past 5 or more years.. On checking it today, nothing of it seems working except radio.. amplifier chip is blown, tape side is useless and the mw/sw stuffs are not used in our country which is fully discrete analog type with bundles of wires running over.... All Im interested in is the 3A 12V powersupply which can give a little less than 17VDC, working Bass-Treble-Balance-Volume Controls, 2 analog Vu meters, the cabinet itself and the Full range stereo speakers of 2x14WRMS.
This unit wont be used by anyone unless it has some good functions, so thought of adding a USB/fm board and replacing the amplifier. The blown amp chip is NEC UPC1185 which is extinct and is a stereo amp in 1 chip looking similar to the LA4440 package. The speakers specify 14W max on each box and has an impedance of 3.2ohm each. power supply is 12v 3A giving near 16-17V when unloaded.
So my question is would 2xTDA2030 be a better option or would a single LA4440 be a better choice. I have a spare LA4440 stereo board, but I havent tried it with this speaker. I tested it with a single TDA2030, but i doubt if the audio quality is a bit low.. Im not sure if its even due to the speaker quality, but since its an original Japan Sony Speaker, Im confused. Thats why I'm asking for an expert suggession. I would prefer a bit more audio quality over 3-4W of extra speaker power per channel as I am going to integrate a USB reciever. Or would you suggest any other easy available chips for this power ratings and supply voltage. I would prefer 1 or 2 chip solutions, trying to avoid additional transistors. Also I donot wish to change the power supply which is single channel. Thank you in advance. I have another similar thread asking abt TDA2030, but this is a different project, so please dont think its a duplicate. Thank You.
So I have a very old Sony Hifi Stereo.. from 83' I guess.. Its got a tape player, fm,mw,sw123 and all those outdated stuffs and was in my attic since past 5 or more years.. On checking it today, nothing of it seems working except radio.. amplifier chip is blown, tape side is useless and the mw/sw stuffs are not used in our country which is fully discrete analog type with bundles of wires running over.... All Im interested in is the 3A 12V powersupply which can give a little less than 17VDC, working Bass-Treble-Balance-Volume Controls, 2 analog Vu meters, the cabinet itself and the Full range stereo speakers of 2x14WRMS.
This unit wont be used by anyone unless it has some good functions, so thought of adding a USB/fm board and replacing the amplifier. The blown amp chip is NEC UPC1185 which is extinct and is a stereo amp in 1 chip looking similar to the LA4440 package. The speakers specify 14W max on each box and has an impedance of 3.2ohm each. power supply is 12v 3A giving near 16-17V when unloaded.
So my question is would 2xTDA2030 be a better option or would a single LA4440 be a better choice. I have a spare LA4440 stereo board, but I havent tried it with this speaker. I tested it with a single TDA2030, but i doubt if the audio quality is a bit low.. Im not sure if its even due to the speaker quality, but since its an original Japan Sony Speaker, Im confused. Thats why I'm asking for an expert suggession. I would prefer a bit more audio quality over 3-4W of extra speaker power per channel as I am going to integrate a USB reciever. Or would you suggest any other easy available chips for this power ratings and supply voltage. I would prefer 1 or 2 chip solutions, trying to avoid additional transistors. Also I donot wish to change the power supply which is single channel. Thank you in advance. I have another similar thread asking abt TDA2030, but this is a different project, so please dont think its a duplicate. Thank You.