| AudioREVIEW's Forum Archives - Amplifier-Preamplifier |
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|   Help me, I'm lost with the lingo | gr0bda
Aug 19, 2002 7:05 PM | | I just bought a pair of speakers Cerwin-Vega E-712, and I can't figure out what receiver or amp or whatever I need. What to look for. Speakers are 300W 8ohms. When I read reviews people were suggesting receiver with at least 100 W RMS! What's that!? Why 100 and not 300? Then I see something like 120 W x 2 min. RMS (what's [x 2 min.!?!?!].) Do I have to bridge spakers to achieve max output? But then next line is 100 W x 5 min. RMS (5 speakers?) How 300W relates to say 300W RMS? What's: "...with no more than 0.8% THD"!?
I was trying to find some glossary, but even then it seems as it's targeted at people with minimal knowledge, which I lack. And I just can't seem to find a page with info for absolute newbies.
Thx for any help (the more detailed, the better.) Or you can just post links to web pages with easy to understand explanations. |
| 1st, you have to balance the linear in/outs..... | piece-it pete
Aug 20, 2002 7:48 AM | | LOL!!
Hello grObda!
OK, if it says: 120 x 2 min. RMS, the 120 means watts, the x 2 means the amplifier has two channels (two speakers =stereo).(so x5 means five channels, five speakers, usually home theater).
For the other questions, try here:
http://www.audiovideo101.com/dictionary/
So to your new speakers. I checked the specs on CVs' website:
http://www.cerwinvega.com/products/homeaudiovideo/eseries/e_frameset_center.html
It says 300 watts! It DOESN'T say whether that's RMS or Peak! Because peak watts are a higher number, & they want their speaker specs to sound good, I would assume that is 300 watts peak. Also, if it's 300 watts peak & you try pumping 300 watts RMS into them, you can kiss them goodbye. I would e-mail them asking for RMS ratings on your product. I would also tell them off for using hype instead of facts to sell their product.
So everyone's right, I would say you need at least 100 x 2 RMS.
I would post further "general knowledge" questions on the "general" board - you'll get more (& quite possibly better:) advice there.
Also, the is a poster there that goes by the moniker: CVfan. He'll probably have some good amp & watts recs for you.
If there's anything else I can do for you, post it or e-mail me at gltpete@hotmail.com.
If any other posters reading this see anything wrong, or can explain something more clearly, please!! do so!
Good Luck!!
Pete |
| 1st, you have to balance the linear in/outs..... | gr0bda
Aug 20, 2002 1:03 PM | | Thx for the replay. The link that you provided to 101 helped me somehow, although I still can't figure out how do I know if 100W RMS is sufficient enough for 300W peak speakers. Why not 150W RMS? Or 200!?
[To all sorry for double post. I'm not used to to this type of message boards, and it seems as this board will let you repost just by using back button in the browser!] |
| Re: 1st, you have to balance the linear in/outs..... | piece-it pete
Aug 21, 2002 5:22 AM | | gr0bda,
The amp will have a peak watt rating as well. Also, the wise posters above will be able to help you with specific amp recommendations. It is true that a quality amp with a lower watt rating will often sound better (and be louder) than a cheap amp with a higher watt rating.
Believe me, if these speakers are as sensitive as CV says (98 decibels / 1 watt?!) they'll be plenty loud with a quality 100 watts RMS per channel. Again, with quality amps you can check the RMS rating AND the peak watts rating, to set your mind at ease.
Pete |
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