Receiver Power Ratings

Dr. Spec
Dr. Spec Posts: 3,780
edited May 2003 in Electronics
http://www.geocities.com/Area51/Hollow/3401/ratevsac.htm

Finally found this link in another forum, and I'm bookmarking it at home. It is updated occasionally, and it really addresses the "all channels driven simultaneously" issue with respect to rated power vs. actual delivered power.

Just an FYI.

Doc
"What we do in life echoes in eternity"

Ed Mullen (emullen@svsound.com)
Director - Technology and Customer Service
SVS
Post edited by Dr. Spec on
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Comments

  • HBombToo
    HBombToo Posts: 5,256
    edited May 2003
    Excellent!

    HBomb
    ***WAREMTAE***
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  • jbowl
    jbowl Posts: 72
    edited May 2003
    I'd say the Doc. must have quite the influence, seems to have overloaded the site...

    Yahoo!


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    http://www.geocities.com/Area51/Hollow/3401/ratevsac.htm
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  • Ceruleance
    Ceruleance Posts: 991
    edited May 2003
    seems like its back up now. Very interesting stuff indeed. Check out the ratings for the Marantz SR-7200... Yikes.
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  • mantis
    mantis Posts: 17,201
    edited May 2003
    I didn't get to read it,it's down.....that sucked....Well you will be suprised whats outputing compared to spec's............remember what I said along time ago about that??????
    Dan
    My personal quest is to save to world of bad audio, one thread at a time.
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  • gshisme
    gshisme Posts: 1,038
    edited May 2003
    Cool stuff..love that Rotel. Hey man thanks for that link.
    suds, suds and more suds!
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  • BeginnersLuck
    BeginnersLuck Posts: 213
    edited May 2003
    down again, everytime i check it's down...
    TWFTPQ
    Receiver: Outlaw 1050
    Amps: Outlaw M-200 x 3 (Powering Mains and Center)
    Mains: RT800i; Center: CS400i; Surrounds: F/X500i
    Sub1: 214L Vented Tempest
    Sub2: 122L Sealed Tempest
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  • izafar
    izafar Posts: 819
    edited May 2003
    For those who cant access the site, the data is in the attached excel sheet
    -izafar

    Goldenear Technology Triton 1 - Benchmark AHB2 - Benchmark LA4 - Auralic Vega - Auralic Aries Mini - Marantz TT-15S1 - Clearaudio Nano
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  • TroyD
    TroyD Posts: 13,090
    edited May 2003
    How many people actually have problems clipping thier receivers?

    My point being, while it's neat 'gee-whiz' type info (I'm not bashing it)....in the end, I feel it's rather meaningless.



    BDT
    I plan for the future. - F1Nut
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  • BeginnersLuck
    BeginnersLuck Posts: 213
    edited May 2003
    Yeah, it's nice to know if what you bought performs like you expecet it too...I know mine does....

    Plus it makes you wonder about some of the units they testest...were they defects....like the marantz 7200 and the interga...ouch!

    I think it is good information to know, but not base a purchase off of. But it certainly can help sway a decision. I almost bought the marantz 7200...but when i auditioned it, it sounded loud, but not powerful if that makes sense to anyone...*sigh*...good thing I went with my gut on that one...heh

    -BL

    -BL
    TWFTPQ
    Receiver: Outlaw 1050
    Amps: Outlaw M-200 x 3 (Powering Mains and Center)
    Mains: RT800i; Center: CS400i; Surrounds: F/X500i
    Sub1: 214L Vented Tempest
    Sub2: 122L Sealed Tempest
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  • TroyD
    TroyD Posts: 13,090
    edited May 2003
    Couple of notes here, from the info that I've gathered, output testing is not an exact science in that I'm willing to bet that if you take five different measurements you could very easily come up with five different readings. Much like measuring the rated HP of an engine. I could be wrong on this however.

    What I was really driving at is, as long as you have sufficient power to drive your speakers, which I'm going to assume that most do as I can't think of too many people complaining that they are having problems with clipping, what's the difference?

    Third, if I remember correctly (and I probably am not) in order to get a 3db increase in volume you have to double the power (or something along those lines)...anyway, the point is this, the difference that 5 or 10 watts make is so minute as to be virtually indistinguishable.

    Now, having said that, I'm all about being skeptical about the claims of a manufacturer even the ones carried by the benevolent philanthropists at Tweeter. However, in the grand scheme, I don't think that these measurements are all that telling.

    BDT
    I plan for the future. - F1Nut
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited May 2003
    Troy,
    Your memory is just fine... want 3 more db, double the power.

    Interesting thing to me that was within a line by the same manf, some models exceed spec's while others fall woefully short. Wonder if this is result of a design issue or variation in the production?
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • mantis
    mantis Posts: 17,201
    edited May 2003
    Always on your mind there Troy...............
    Dan
    My personal quest is to save to world of bad audio, one thread at a time.
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  • Dr. Spec
    Dr. Spec Posts: 3,780
    edited May 2003
    I can see both sides.

    I'm sure if these AVRs were all tested per FTC, that each channel alone would make rated specs. And I doubt there is ever a time when an AVR needs to make full power into all channels at once under music/HT conditions.

    With that said, an AVR that comes close to (or meets/exceeds) its rated power with all channels being driven at once is a good indication it is robustly built with high quality components. This in turn gives a potential buyer a warm fuzzy that the rest of the AVR is probably also well built.

    Doc
    "What we do in life echoes in eternity"

    Ed Mullen (emullen@svsound.com)
    Director - Technology and Customer Service
    SVS
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  • rickfaldo
    rickfaldo Posts: 49
    edited May 2003
    Sounds right to me. My personal experience has been the Integra was very low on power compared to advertised power. With LSi speakers, my Integra clipped around 94db level, which is not very loud. After adding a Rotel 1075 power amp, the difference was and still is, well, incredible! When I bought the Integra, I was told they were state of the art for that price range...ya, right! The 100W advertised rating was according to the SVS article triple the actual rating.
    Rick
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