 Re: Setting Crossover for New Receiver
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
I was looking over my measurements again and 0dB on my Denon is where I was sourcing 90VA. My amp is spec'd at 90W. Is this a coincidence?
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Re: Setting Crossover for New Receiver
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
>>I believe that on most(all?)receivers that use the - to 0 to + volume scale(one of mine goes 1 to 79)that the 0 point is the "unity gain" point where the input voltage has been reduced so that the gain of the pre-amplifier section(e.g. 12dB)plus the amplifier section (e.g. 29dB)which together would create a 41dB voltage gain with the volume control at maximum, is reduced to the 29dB gain figure as if only the amplifier gain was in effect.
Makes sense... I wondered about that as a possible interpretation. If I understand correctly, you are saying "0dB = standard line level out assuming standard line level in" ?
I vaguely remember that back in the dark ages "standard line level" was something like 0dBm, which may have been a milliwatt into a 600 ohm load or 0.775v.
I have no idea why I remember that, or if it's even correct. I'm pretty sure about the 0.775 v but everything else is a blur.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8
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Re: Setting Crossover for New Receiver
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
Quote:
I vaguely remember that back in the dark ages "standard line level" was something like 0dBm, which may have been a milliwatt into a 600 ohm load...
Right. That came from the telecom world.
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Re: Setting Crossover for New Receiver
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
John, I don't know if it makes any sense other than 0 being an easy to remember reference point(for example, on the receiver that I mentioned, as best I can tell 60 is the "unity gain" point, but I'm not really sure). But as I understand it, if for example the input is 0.1V and the amplifier section gain is the typical 29dB, then the overall gain at 0 is 29dB and as a result the 0.1V is amplified to about 2.83V,[20log(2.83/0.1)] which is of course the standard voltage for the speaker sensitivity 1 meter spec.
-----------------------------------
Enjoy the music, not the equipment.
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Re: Setting Crossover for New Receiver
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Joined: Feb 2007
Posts: 427
devotee
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OP
devotee
Joined: Feb 2007
Posts: 427 |
Quote:
Daniel, although you should eventually wind up with the settings that you really prefer, since it's your money, keep in mind that "richer/fuller" isn't necessarily good from an objective standpoint and may be a result of overemphasis in the bass area. Since YPAO and other auto-setup programs set speaker sizes and crossovers according to a certain set of standards which may give results that are acceptable, but not necessarily the best for a particular situation, it's suggested that you set your 6080 to "skip" for the size and crossover parameters. Then manually set them to "small" with a crossover of 80 or 90Hz and allow YPAO to set speaker levels and distances. As to the room equalization part of YPAO, you can experiment with it later when you have more time; some report an improvement from using it and others say that it was worse, but it's there for you to at least try.
Okay well I'll play around with the sizes for a couple of day see which gives me a more pleasing sound.
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Re: Setting Crossover for New Receiver
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Joined: Jun 2007
Posts: 85
old hand
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old hand
Joined: Jun 2007
Posts: 85 |
Quote:
I finally got my yamaha 6080B setup yesterday. What job to disconnect all the wires, move the furniture, then put it all back only to find the receiver DOA. Arrhhh!!!
So off the the store to get a replacement and move the furniture, disconnect everything, connect everything and finally move the furniture back. Reciever works 
Now to my question. I ran the Auto Setup and found that the front speakers where set to Large and all the others to small. Also found that the bass crossover for the small speakers where set to 120Hz. See my signature for my equipment.
I have two questions. I played around with setting my M60's to Large and Small with my sub. I found that I actually prefer the overall sound from my system with the mains's set to Large. Is there any reason to set them to small if I like the sound I'm getting? It seems to make the sound a little bit richer/fuller.
Also with my vp150 and qs4's, what do you think I should set the crossover to? I thought I read somewhere people setting them to 40Hz but I can't be sure.
All advice is welcome. BTW the new receiver made quite a bit of diff in watching dvd's and listening to movies. Definitely sounds better.
I have new M60's, an EP500 and VP150 with QS8's as surrounds. I notice that when I set my M60's to the small setting that the EP500 puts out more bass, more sound in general. BUT, when I set my M60's to large the EP500 blends much better with the M60's! 
Especially if you listen to any music does the M60, EP500 combo sound much more balanced with the M60's set to large, IMO. So after much debate...between my left ear and my right ear...I have decided to leave the M60's set at large with all the others set at small. This still leaves massive amounts of power for the EP500 to cause small children to mess their pants, reduce ceramic objects to dust, and cause pets to cower in a corner when the pods come up from the ground in War Of The Worlds! 
"Tis better to desire that which you do not have, than to have that which you do not desire!"
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