A little late but I thought I would add my experience with the Onkyo 9150 . I have Dynaudio Audience 52 4 ohm speakers. I contacted Dynaudio before purchase and asked them what power was required . They said that they recommend 65 watts for a medium sized room .Larger room more and small or nearfield less. I bought the Onkyo mainly for the pre-amp section and new technologies figuring I could always buy a seperate power amp if I needed it as the amp is configured to be used as a pre amp if wanted. I have not needed to do that as the amp delivers clean power and wonderful sound at good volume. I listen to mostly Classical and jazz with no problem. Music is either streamed from qobuz hi-res,downloaded cd in alac or cd from Onkyo dx 7555 cd player. I also run all music thru my Rega dac though the onkyo onboard dac is very good but brighter than the Rega. Besides the Dynaudio speakers I use AKG K712 phones. I would Highly recommend this amp to people who like music .
Power Rating: Onkyo vs Yamaha
Hi, everyone!
I am browsing for an integrated amplifier and I stumbled upon the Onkyo A-9150, that meets all my requirements (budget, good sound, discreet class AB design, internal DAC, pre-out, phono, the whole package), but I am really curious by its power rating.
Looking at the specs, it is rated as 60W/4-ohm and 30W/8-ohm with 0.08% THD from 20 to 20,000Hz. Okay, but the manual also states that it weighs 9.2 Kg, almost the same (even heavier) as the Yamaha A-S301, that weighs 9.0 Kg. Only the Yamaha is rated as 60W/8-ohm and 70W/4-ohm with 0.019 THD from 20 to 20,000Hz. Upon inspection of pictures over the internet, their transformers are pretty much identical, just like their chassis, andÂ
How come is this difference in power so big? Any ideas?
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PS.: If you look in their service manuals, I guess you will find that their topology is the same and that the Onkyo A-9150 amplifier transistors are even more powerful than the Yamaha A-S301's.
I am browsing for an integrated amplifier and I stumbled upon the Onkyo A-9150, that meets all my requirements (budget, good sound, discreet class AB design, internal DAC, pre-out, phono, the whole package), but I am really curious by its power rating.
Looking at the specs, it is rated as 60W/4-ohm and 30W/8-ohm with 0.08% THD from 20 to 20,000Hz. Okay, but the manual also states that it weighs 9.2 Kg, almost the same (even heavier) as the Yamaha A-S301, that weighs 9.0 Kg. Only the Yamaha is rated as 60W/8-ohm and 70W/4-ohm with 0.019 THD from 20 to 20,000Hz. Upon inspection of pictures over the internet, their transformers are pretty much identical, just like their chassis, andÂ
How come is this difference in power so big? Any ideas?
------------------------------------------------------------------
PS.: If you look in their service manuals, I guess you will find that their topology is the same and that the Onkyo A-9150 amplifier transistors are even more powerful than the Yamaha A-S301's.