Guest jeffpr Posted October 9, 2008 Posted October 9, 2008 Does anybody know which recievers don,t clip white or black in the up to $2000 range ? ie yamaha and harmon kardon do, unfortunately. What about marantz or onkyo or others? thanks in advance . jeff.
THX1979 Posted October 9, 2008 Posted October 9, 2008 the new Pioneers preserve head and toe room- theres a whole thread at AVS about "which receivers retain above white and below black"
Guest Posted October 9, 2008 Posted October 9, 2008 (edited) Could you better define what you mean by clip? I thought clipping had more to do with poor speaker/amp match rather than just the amp alone. I thought making sure your amp had more power than your speakers/ears needed avoided clipping occurring? To clarify, making sure your amp outputs modestly more power than the speakers are rated for give "head room" and a clean signal to the speakers - using an underpowered amp and running it close to or at it's capacity will cause it to clip the sound wave and eventually root your voice coils/drivers in the speakers. I would imagine that if you had the gear to measure it - all amps would clip at full throttle .... any that didn't would have to have some form of limiter on them to make it impossible to run them at max+ capacity. Interested to hear otherwise though? Edited October 9, 2008 by Guest
Shonky* Posted October 9, 2008 Posted October 9, 2008 He's talking about clipping of blacker than black and whiter than white video signals which provide "headroom" so the electronics don't hit the limits hard. For movies they should never include any frames that show black than black or whiter than white so is generally a non issue. It also should not be an issue if a display is calibrated properly. Where it can be a problem is with console games like PS3 and Xbox. They usually have adjustments for "Full RGB" on or off.
Shonky* Posted October 9, 2008 Posted October 9, 2008 And a post of mine here explains a bit more: http://www.dtvforum.info/index.php?showtop...t&p=1165996
Guest Posted October 9, 2008 Posted October 9, 2008 He's talking about clipping of blacker than black and whiter than white video signals which provide "headroom" so the electronics don't hit the limits hard.For movies they should never include any frames that show black than black or whiter than white so is generally a non issue. It also should not be an issue if a display is calibrated properly. Where it can be a problem is with console games like PS3 and Xbox. They usually have adjustments for "Full RGB" on or off. Oh .... so use of the term clipping here has nothing to do with the sonic qualities of the receiver .... HDMI standards are there for a reason.
50mxe20 Posted October 9, 2008 Posted October 9, 2008 He's talking about clipping of blacker than black and whiter than white video signals which provide "headroom" so the electronics don't hit the limits hard. Ahhhh, I see (said the blind man that had never seen before). I also see I was not the only one to misinterpret what he was asking. I was certainly thinking sound.
Shonky* Posted October 9, 2008 Posted October 9, 2008 Oh .... so use of the term clipping here has nothing to do with the sonic qualities of the receiver .... HDMI standards are there for a reason. It's not really a standards issue. It applies to component video really as much as it does to HDMI. HDMI levels are particular digital levels wheres component it's signal levels. To re-iterate, in normal operation it shouldn't really be an issue but I can understand why people don't like it. To be honest I don't know why a receiver would need or want to clip the video signals.
Guest Posted October 9, 2008 Posted October 9, 2008 It's not really a standards issue. It applies to component video really as much as it does to HDMI. HDMI levels are particular digital levels wheres component it's signal levels.To re-iterate, in normal operation it shouldn't really be an issue but I can understand why people don't like it. To be honest I don't know why a receiver would need or want to clip the video signals. Probably just to annoy those who want to use video games consoles as Blue Ray players <snigger>
Guest jeffpr Posted October 9, 2008 Posted October 9, 2008 the new Pioneers preserve head and toe room- theres a whole thread at AVS about "which receivers retain above white and below black" thanks for the info .yes i,m asking about video signal clipping . which topic was the AVS thread in ? amps and recievers? i looked but it must be moving fast. thanks. jeff.
tonymy01 Posted October 9, 2008 Posted October 9, 2008 I ended up getting the Yamaha 3800 over the Onkyo 875/905, as even though the Yamaha doesn't do a true HDMI passthru (well, it passes thru all except BTB & WTW...frig knows why the hell they decided to do that), the fact that the chipset in the Onkyo manipulates the HDMI to put the OSD stuff (like volume control etc), buggers the contrasts etc!! Also I read enough issues about lip synch probs with all the audio DSP chips that each add lag to turn me away from the Onkyo (not to mention the heat issue etc!). Regards
cwt Posted October 9, 2008 Posted October 9, 2008 thanks for the info .yes i,m asking about video signal clipping . which topic was the AVS thread in ? amps and recievers? i looked but it must be moving fast. thanks. jeff. Its a relevant subject jeffpr ;especially when bluray players with xv ycc expanded colour gamut are about to come . Leaving aside whether the 12 rather than standard 8 bit bluray signal improves things ; a few slightly older model pio avr owners have found the expanded colour gamut wont pass to their kuros Cant wait to see how the pio bdp 09's 14 bit colour upsampling is handled
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