I Need Help With A Home Audio/speaker Question…please!!!?
I have an RCA home theater receiver the specs are on this link... http://www3.dealtime.com/xPF-RCA-RT2250
I just have the receiver not the speakers that came with it. I am looking at buying 2 new floor-standing speakers, the specs for those are here...http://www.bestbuy.com/site/Sony+-+8%22+3-Way+Floorstanding+Speakers+(Pair)/8289238.p?id=1172277278079&skuId=8289238
I have heard these on display already and they sound great, at least for me, I am not looking for anything too fancy.
The question I have is whether or not my receiver (posted above) has enough power to run the speakers (which I have yet to buy). I don't want there to be a mismatch that will cause harm to either. Any information would be greatly appreciated!
You know its a tough question because the specks on your amp say 50 watts but what is that RMS? peak power? what?..then the sensitivity on the speakers is only 88db..that is not very high, over 90db would be better..so you are taking a chance, it may play them but not very loud and if you turn it up the amp will distort and ruin the speakers..so you are taking a chance...
Hmm…
Well… there will be some mismatch.
The RCA receiver is really not built to power anything else other than its original speakers.
I suspect that its original speakers are single driver ones… whereas the Sony speakers are 3 driver [3way] speakers.
The amount of drivers is not the main issue. Impedance is… google or wiki "speaker impedance" — and you’ll find that impedance matching is quite critical to yeild quality sound… and longevity of equipment.
The Sony’s are 8ohms impedance…. whereas the RCA’s specs are nowhere to be found… so its impedance can be 2-or 3-or 4-or 6-or 8 ohms — who knows.
Will the setup work?? – Yes it will make sound.
Sound quality may be OK – but you may get clipping [sound cutting in and out] and or popping once in a while from your speakers.
The RCA receiver and Sony Speakers will work like this for a while though… Cuz I’d guess the RCA impedance at 4-6ohms [which is common with these types of htib receivers] — so you are going UP in impedance…. this is better than going down. — so this means that your setup can work up to a few years.
By a few years, I’d hope you would go and upgrade receivers.
I’d suggest ones from Yamaha, Pioneer, Onkyo, Denon. .. they all make some great receivers at only a few hundred each.
Yes, there is a missmatch in wattage power…. but as long as you do not turn it all the way up to Max all the time… this missmatch won’t really matter.
Suggestion:
If you are only looking for a good 2 speaker setup… visit site:
http://www.audioengineusa.com
And Look at the AudioEngine A2 or A5… these 2 powered speakers do not need any receivers – as they are powered… and will connect to virtually anything.
I have the A2… and they will sound better than your above setup – no offense intended.
Hope this helps and good luck!
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Audio Enthusiast
Does that unit already have the five speakers and it says 50 watts. If you replace two of the speakers with the two new ones the receiver should be able to push them.
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They are okay, but you can do better.
http://www.bhphotovideo.com/c/product/321847-REG/Behringer_B2030P_B2030P_2_Way_Passive.html is a far superior speaker with much better frequency /response and engineering.
You should be fine running either pair on your receiver, but the above pair really are better so if you can swing them then go for it.
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Yes this combination will work. The receiver is rated at 50 watts into "each" main speaker at 6 ohms. You can find this same information in the manual here http://support.radioshack.com/support_audio/doc61/61791.pdf The speakers are rated at 8 ohms with a sensitivity of 88 dB 1w/1m. Most likely the original speakers sensitivity is less than 88 dB meaning these will likely be able to play louder than the original. In theory you should be able to play these slightly less than 105 dB peaks. (50 watts is about 17 dB more than 1 watt) Your 50 watt rating is based on 6 ohms which translates to about 37 watts into 8 ohms assuming no voltage change. More likely it will be between 40 and 50 watts into 8 ohms. This is only a fraction of a dB difference in output.
Very few amplifiers today have much of a problem with running unloaded. This means pretty much any impedance load between the minimum rating (in this case 6 ohm) and infinity is ok. You just get less and less power the higher you go. So don’t worry that these speakers are 8 ohm, it’s actually easier on the amplifier than the original speakers.
Your subwoofer output is rated at 100 watts into 3 ohms. If you want a passive sub, 3 ohms is not common so look for one rated 4 ohms. It will provide about 75 watts into 4 ohms. One consideration here however is that it is using the same power supply for the sub and the mains. Installing a passive sub will use up most of it’s capacity and reduce its ability to drive the mains. If you later add a sub you would be better to get an active one having its own built in amplifier. You will still use the same output to drive the sub amp but this will be a much higher impedance and thus take less power away from your main speakers.
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The receiver/home theater system does not have enough power (50 watts to main speakers, but did not specify, which could be at all 5 speakers, which means 10 watts max per channel). If you drive your speaker at a higher volume you could burn out the amplifier on the receiver. You need a stand alone receiver with at less a 50 watts per channel. Hope this will help you out.
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You know its a tough question because the specks on your amp say 50 watts but what is that RMS? peak power? what?..then the sensitivity on the speakers is only 88db..that is not very high, over 90db would be better..so you are taking a chance, it may play them but not very loud and if you turn it up the amp will distort and ruin the speakers..so you are taking a chance…
References :