Electronics > Beginners
Loud Speaker?
ChrisGreece52:
--- Quote from: madires on May 30, 2013, 03:19:26 pm ---
--- Quote from: ChrisGreece52 on May 30, 2013, 02:18:06 pm ---
--- Quote ---The 2" speakers will fall off around 100Hz very quickly, maybe even at a higher frequency.
--- End quote ---
well that sucks.......
--- End quote ---
That's why I recommend a 8" speaker. If you add a bass booster to your amp you'll get away with a smaller speaker (6"), but I woudn't go any smaller. Driving such a speaker with 10W should sufficient for a quiet midsized room. With a noisy background (talking people) you have to crank up things considerably.
--- End quote ---
What would you suggest with a medium sized room with medium silence level ???
8" with 15 watts will be good ?
madires:
--- Quote from: ChrisGreece52 on May 30, 2013, 04:47:51 pm ---What would you suggest with a medium sized room with medium silence level ???
8" with 15 watts will be good ?
--- End quote ---
Could work, but it's better to have some reserves, like 30W. The TDA2050 delivers 32W but at high power levels the distortion increases. Give it a try :-) If the TDA2050 doesn't provide enough power you could upgrade later on.
ChrisGreece52:
--- Quote from: madires on May 30, 2013, 05:19:52 pm ---
--- Quote from: ChrisGreece52 on May 30, 2013, 04:47:51 pm ---What would you suggest with a medium sized room with medium silence level ???
8" with 15 watts will be good ?
--- End quote ---
Could work, but it's better to have some reserves, like 30W. The TDA2050 delivers 32W but at high power levels the distortion increases. Give it a try :-) If the TDA2050 doesn't provide enough power you could upgrade later on.
--- End quote ---
ok but 30 watts??? thats sounds a lot ....
if i could find a transformer 12 volt it had to be 2.5 amps ... thats easy to find right ??? if i buy a 12 volt 3 amp power supply it would be more than enough to power it on !!!
ChrisGreece52:
thats the first thing i came up when i searched 12 volt 3 amp
http://www.ebay.com/itm/36W-12V-AC-DC-Power-Supply-3-Amp-12-Volt-Adapter-LCD-3A-Charger-Laptop-5-5-2-5mm-/270881755391?pt=AU_Laptop_Accessories&hash=item3f11cf90ff
does it worth it or it will be crappy ?
madires:
--- Quote from: ChrisGreece52 on May 30, 2013, 09:40:21 pm ---ok but 30 watts??? thats sounds a lot ....
if i could find a transformer 12 volt it had to be 2.5 amps ... thats easy to find right ??? if i buy a 12 volt 3 amp power supply it would be more than enough to power it on !!!
--- End quote ---
12v with 2.5A will give you about 25W DC. Now we have to consider the efficiency of the amp (around 2/3) and end up with 16W audio. If you keep things modular, you can start with that transformer and a TDA2050 module. If you need more power later on upgrade to a higher rated transformer. The old one will be useful for another project :-)
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