dougi
Addicted to Fun and Learning
"Just" different ways and standards for measuring the maximum power. Website says: The A-50 has an output power of 180w(4Ω, 1kHz, THD 0.7%, 2ch driven) / 140w(8Ω, 1kHz, THD 0.7%, 2ch driven)I was interested in the Icon A-50 due to the ART feature, it's advertised as 140w @ 8ohm & 180w @ 4ohm everywhere including on Onkyo's website, but I'm put off as in the PDF manual it says the following,
North America and Japan models ■Amplifier Section Rated Output Power (North America models) With 8 ohm loads, both channels driven, from 20 Hz20 kHz; rated 110 watts per channel minimum RMS power, with no more than 0.08% total harmonic distortion from 250 milliwatts to rated output. (FTC) (Japan models) 2 ch x 100 W at 8ohms, 20-20,000Hz, 2ch driven of 0.08% THD (JEITA)
Europe models ■Amplifier Section Rated Output Power 2 ch × 110 W at 4 ohms, 1 kHz, 2 ch driven of 1% THD(IEC) THD+N (Tot
Asia and Oceania models ■Amplifier Section Rated Output Power 2 ch × 110 W at 4 ohms, 1 kHz, 2 ch driven of 1% THD(IEC)
What's the deal here?
edit -
Just catching up, will Dirac still be a feature on the A-50?
The manual, I assume, quotes measurements of power based on relevant standards in the given ,market (FTC, JEITA, IEC). The US FTC figure is across 20-20000 Hz, 0.08% so figures will be less than the website figure.