kenratboy Posted September 7, 2003 Share Posted September 7, 2003 http://www.geocities.com/Area51/Hollow/3401/ratevsac.htm In most cases, 100 watts = 30-40 watts. I know that a cheap Sony reviever like mine will be putting out 30, 40 watts, but there is some expensive stuff with not much output. Quote Link to comment Share on other sites More sharing options...
nicholtl Posted September 8, 2003 Share Posted September 8, 2003 Whoa. I'm particularly dissapointed in Integra's performance. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted September 8, 2003 Share Posted September 8, 2003 Wow, my Denon AVR-4800 puts out a whopping 148 watts per channel even though it is rated at 125. It only runs the KG-1's anyway. Nice to know though. Quote Link to comment Share on other sites More sharing options...
dblue Posted September 8, 2003 Share Posted September 8, 2003 Good old HK baby! Quote Link to comment Share on other sites More sharing options...
TheEAR Posted September 8, 2003 Share Posted September 8, 2003 Most receivers have blown specs(save for the high end Yamaha,Pioneer and good ole H/K).Even the Big Denon 5803 does not meet its rating!!! Well I have separate large power amps.They all go above spec Quote Link to comment Share on other sites More sharing options...
Orange Peel Posted September 8, 2003 Share Posted September 8, 2003 Oh yeah, gotta love Harman Kardon baby!!! Quote Link to comment Share on other sites More sharing options...
MrMcGoo Posted September 8, 2003 Share Posted September 8, 2003 Receivers have many excellent features, but poor amplification. Most receivers will benefit from an external amplifier. IMO, the main benefit of separates is the higher quality amp. Low receiver output means that high sensitivty speakers and a good subwoofer are the way to go in home thaeter. Klipsch is great for power challenged receivers. Bill Quote Link to comment Share on other sites More sharing options...
Fish Posted September 8, 2003 Share Posted September 8, 2003 Great post and informative for some.Its all about money not watts,you can't spend 1k on an avr and think its got a 2k amp inside. Quote Link to comment Share on other sites More sharing options...
love_hertz Posted September 8, 2003 Share Posted September 8, 2003 WOW cool charts does anybody know the specs on a Yamaha RX-V3300, is the power "overrated" like most of these recievers??? Quote Link to comment Share on other sites More sharing options...
burtlively Posted September 8, 2003 Share Posted September 8, 2003 no wonder i trashed my marantz and yamaha. i am amazed at the clarity and power of my separates setup! Quote Link to comment Share on other sites More sharing options...
danechristian Posted September 8, 2003 Share Posted September 8, 2003 hey kenrat boy. nice thread. just a quick question. do you have an updated version of that chart? coz it seems that the recievers were kind of old except for some.. Quote Link to comment Share on other sites More sharing options...
MrMcGoo Posted September 8, 2003 Share Posted September 8, 2003 I believe that the chart is based on lab tests by Sound & Vision. Unfortunately, while they do not publish enough tests, some published test are missing. The trends are apparent; most receivers do not make rated power, especailly low cost 7 channel receivers. Bill Quote Link to comment Share on other sites More sharing options...
FirebirdTN Posted September 8, 2003 Share Posted September 8, 2003 I am kinda new around here, but I must say that chart came as no surprise to me... I am currently building my second ever home theater system (my first was a disaster), and my previous receiver was a Technics from Sears. It was rated at 100 Watts per channel in stereo mode, and 50 Watts per channel Front, center, right, and 35 watts per channel left and right rear surrounds. At least they published the specs for home theatre mode! Anyway, its a rough estimate, but for most mass-marketed receivers, what I do is see what the power rating is in stereo. Add the two channel ratings up, then divide that factor by the total number of active channels (7 in this case since its a 7.1 channel reciever) to get what I consider a close estimate of real world performance in home theater mode. Example, the receiver I am planning on purchasing is the Sony STRDA1000ES. It the lowest of the line "ES" reciever. Its rated at 100 Watts per channel X 7. It also happens to be rated at 100 Watts per channel in stereo mode. So, L+R Stereo power=200 Watts. For simplicity of the math, say 210 watts total. Divide that by 7 for seven channels, and I expect in HT mode, I can expect about 30 watts from each channel. Again, its a rough estimate, but it ought to get close. I think the amplifier circuits in these recievers are capable of the rated output, I would guess its the power supplies that can't keep up with that kind of power with that many channels... Now, a related, but off the wall question... What is louder: A single speaker receiving 100Watts of power, or 2 identical speakers receiving 50 Watts each? The reason for this question, is maybe the manufactuers do this on purpose? Otherwise, switching from 2 channel mode to 7 channel mode and keeping the same power ratings, but now at 7 channels would mean you would have to turn the volume up and down when switching modes...Just wondering... -Alan Quote Link to comment Share on other sites More sharing options...
kenratboy Posted September 8, 2003 Author Share Posted September 8, 2003 Glad you guys liked that. It was a link from the Home Theater Forums and I had not seen it posted here. Remember, most magizines do lab work on the amps they test and give the real power, so if you want, you might be able to find in print and online (for a fee), a review of your current to to-be receiver and the numbers. Quote Link to comment Share on other sites More sharing options...
STL Posted September 9, 2003 Share Posted September 9, 2003 On 9/8/2003 8:10:08 PM FirebirdTN wrote: What is louder: A single speaker receiving 100Watts of power, or 2 identical speakers receiving 50 Watts each? Theoretically the are the same. Keep in mind that in movies, it is not real common that all channels would be driven to their max at the same time. Quote Link to comment Share on other sites More sharing options...
Strabo Posted September 9, 2003 Share Posted September 9, 2003 Thanks for the link. I book marked it. Remember though, there's much more to an amp than its power. I had a Denon 4802 for a couple of months (not shown but it should be in the 90's) and it could not control my Forte's for crap My favorite qoute "Sony tells us, the receiver was not designed to deliver full power..." Quote Link to comment Share on other sites More sharing options...
reel 2 reel Posted September 9, 2003 Share Posted September 9, 2003 I have the same problem with my Technics SA AX6... performance doesn't come close to my old Pioneer SA-8800 driving my Fortes' ...someday I'll get that output driver fixed....clips at about 15 watts rms the amp was rated at 85 watts X2 20-20,000hz at I believe .02%thd and the technics is rated at 100 X6...and I'm not sure about the rest...but anyway it's not the power output...It's the design, and the quality, that make it work Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted September 10, 2003 Share Posted September 10, 2003 This is my primary reason for running all outboard quality amplification. The diffences are indeed significant. Quote Link to comment Share on other sites More sharing options...
3dzapper Posted September 10, 2003 Share Posted September 10, 2003 love_hertz, The 3300 is about the same as the discontinued RX-V1 that I have. The specs are the same from what I can see. When I was driving my horns I found it sounded better using my old Nikko Alpha as the amp and the Yami as the processer. Rick Quote Link to comment Share on other sites More sharing options...
love_hertz Posted September 10, 2003 Share Posted September 10, 2003 thanks 3dzapper Quote Link to comment Share on other sites More sharing options...
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