First I attempted to play some new ATH-A1000X headphones through the headphone jack (headphone impedence 32ohm, sensitivity 101db) and found though generally the quality was good, the response in the bass was particularly messy, in a way that especially didn't make sense to me considering the apparent quality in the rest of the response. After reading some of nwavguy's blog, I got the impression that output impedence from the jack may be too high and a poor damping factor could be hurting the bass. My best guess at impedence factor on the output jack is 75 ohms as this is the only number in the provided literature that seems relevant though it does say for composite video output (en-54 in http://www.eu.onkyo.com/downloads/1/4/6/2/...TX-8050_En.pdf). So my first question is does this sound accurate?
Do you mean the 75 ohm composite video connector? 75 ohms is just the impedance of the RCA connectors, which are those cables you use if your TV doesn't support HD.
Quote from: saratoga on 09 May, 2012, 05:57:49 PMDo you mean the 75 ohm composite video connector? 75 ohms is just the impedance of the RCA connectors, which are those cables you use if your TV doesn't support HD.I was also wondering if a poor impedance match on the jack could make bass in particular suffer?