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Re: Vp 180 center
theskins #410922 03/20/15 02:54 AM
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What sort of listening level do you typically play your movies at. I consider normal listening to be around 50db and I watch my movies around 75db to 80db. At levels I watch regular TV at I doubt you would notice a difference, but watching a bluray with lossless audio I would think there would be a noticeable difference given the reliance on the center channel of most current movies. Are you feeding the receiver bitstream or lpcm.


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Re: Vp 180 center
theskins #410925 03/20/15 04:23 AM
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Originally Posted By: theskins
doing test through an A/B speaker switch and not adjusting DB level thru this test ??? Maybe a problem.....
I have used RS SPL meter to set 180 with rest of speakers ...before testing...


Level-matched to the rest of the speakers is good, but if you can't level-match the 180 and the 150, it's not going to be a fair comparison.

Re: Vp 180 center
Gr8_White_North #410930 03/20/15 09:28 AM
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Originally Posted By: Socketman
What sort of listening level do you typically play your movies at. I consider normal listening to be around 50db and I watch my movies around 75db to 80db. At levels I watch regular TV at I doubt you would notice a difference, but watching a bluray with lossless audio I would think there would be a noticeable difference given the reliance on the center channel of most current movies. Are you feeding the receiver bitstream or lpcm.

Can't remember DB level but blu Rays on Denon amp at volume usually set at -15
( reference 0)
I believe lpcm ( lossless)


denon 991 /M80's /vp150 & 180 /4x QS8's
Velodyne 15"/ Dbox 12"
ps4 benq w1070 -grand view 106" FF



Re: Vp 180 center
CV #410931 03/20/15 09:33 AM
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Originally Posted By: CV
Originally Posted By: theskins
doing test through an A/B speaker switch and not adjusting DB level thru this test ??? Maybe a problem.....
I have used RS SPL meter to set 180 with rest of speakers ...before testing...


Level-matched to the rest of the speakers is good, but if you can't level-match the 180 and the 150, it's not going to be a fair comparison.

Good point....I will use RS meter to test each center
Just a thought ........with the 180 being 4 ohms and the 150 6 ohms
Should the 180 be louder if sent same amplification?


denon 991 /M80's /vp150 & 180 /4x QS8's
Velodyne 15"/ Dbox 12"
ps4 benq w1070 -grand view 106" FF



Re: Vp 180 center
theskins #410938 03/20/15 05:06 PM
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Originally Posted By: theskins
Originally Posted By: CV
Originally Posted By: theskins
doing test through an A/B speaker switch and not adjusting DB level thru this test ??? Maybe a problem.....
I have used RS SPL meter to set 180 with rest of speakers ...before testing...


Level-matched to the rest of the speakers is good, but if you can't level-match the 180 and the 150, it's not going to be a fair comparison.

Good point....I will use RS meter to test each center
Just a thought ........with the 180 being 4 ohms and the 150 6 ohms
Should the 180 be louder if sent same amplification?


I think the real difference would be in the speakers sensitivity levels. If the VP180 is 93db and the VP150 was 90db then I guess the VP180 would be double the volume level. They said every 3bd is double the volume. However, that said they say to get dbl the volume you need twice the wattage. So, if the 180 is 4ohms and the 150 6 ohms then the wattage is not going to double. The 180 should be a tad louder. One would think


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Re: Vp 180 center
theskins #410939 03/20/15 05:12 PM
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Just curious, are you on the Axiom's person to audition list. If so I'd love to hear that VP180/150 difference.
I'd bring in my v3 180's but don't think I can get them in the car as a pair.
But, then again a friend in Dartmouth wants to hear them also so may try to someday.

PS did you get enough snow Tuesday ????4 hrs shovelling because my son thought he could snowblow the previous storms wet heavey snow and burnt out the belt. I got a walkway from front door to my driveway with 6ft walls of friggin snow ;)Bottom of driveway the sides are 7 ft high and the two lane road is one way and only passible if one pulls into someones driveway to let the other car go by


Anthem MRX520
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QS10v4

Re: Vp 180 center
TroyD #410952 03/20/15 10:42 PM
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Originally Posted By: TroyD
Just curious, are you on the Axiom's person to audition list. If so I'd love to hear that VP180/150 difference.
I'd bring in my v3 180's but don't think I can get them in the car as a pair.
But, then again a friend in Dartmouth wants to hear them also so may try to someday.

PS did you get enough snow Tuesday ????4 hrs shovelling because my son thought he could snowblow the previous storms wet heavey snow and burnt out the belt. I got a walkway from front door to my driveway with 6ft walls of friggin snow ;)Bottom of driveway the sides are 7 ft high and the two lane road is one way and only passible if one pulls into someones driveway to let the other car go by
yes way too much snow
Not on audition list, but your welcome to come in for a Demo( would love to hear your opinion first hand as well)
On emergency heating call this weekend....maybe over next couple of weekends we can pick a saturaday or Sunday .......I may end up sending 180 back (30 days) about 9 days in now......but still have a lot of demo time before I make up my mind....Really I was expecting 180 to be a huge difference from the 150.........so far disappointment...
But They both sound good ......
Would be nice also if you could fit 80's into car.....I would love to hear the TI's vs the V3

I'm in Tantallon/Timberlea area

Last edited by theskins; 03/20/15 10:43 PM.

denon 991 /M80's /vp150 & 180 /4x QS8's
Velodyne 15"/ Dbox 12"
ps4 benq w1070 -grand view 106" FF



Re: Vp 180 center
theskins #410955 03/21/15 01:13 AM
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Tantallon cool not too far 45 min drive.
yup maybe I will bring the MCA50 bet that would make a difference. I think your Denon has pre outs


Anthem MRX520
M5HPv4
VP160HPv4
QS10v4

Re: Vp 180 center
theskins #410957 03/21/15 01:27 PM
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No pre outs on the 991.......shitty


denon 991 /M80's /vp150 & 180 /4x QS8's
Velodyne 15"/ Dbox 12"
ps4 benq w1070 -grand view 106" FF



Re: Vp 180 center
TroyD #410959 03/21/15 02:39 PM
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"I think the real difference would be in the speakers sensitivity levels. If the VP180 is 93db and the VP150 was 90db then I guess the VP180 would be double the volume level. They said every 3bd is double the volume. However, that said they say to get dbl the volume you need twice the wattage. So, if the 180 is 4ohms and the 150 6 ohms then the wattage is not going to double. The 180 should be a tad louder."

Hi TroyD,

You are misunderstanding the decibel and its relationship to power in watts and perceived loudness level. It's very confusing to newcomers and longtime enthusiasts alike. A 3-dB difference in sensitivity would be perceived as only "slightly louder", and would require twice as much power.

To actually double the perceived loudness of a speaker requires ten times as much power, not twice as much. It's a logarithmic relationship.

If you double the power in watts going to a speaker, the loudness of the speaker to our ears increases by only 3 dB, or "slightly louder."

A 1-dB difference is the smallest step or change in loudness that humans can detect. Smaller differences in loudness may not be detectable, but in listening tests, most people hear the ever-so-slightly louder speaker as sounding "better," which is why in A/B speaker tests between two speakers, the loudness levels must be matched to a fraction of a decibel.

Incidentally, skins, when I did careful double-blind tests at Axiom of the prototype vp180 center to the vp150, I found the vp180 to be dramatically better and less coloured than the vp150. I praised the vp180 center as sounding essentially as good as what turned out to be the M80v3. So I suspect that the slight level differences in your comparisons at home are leading you to incorrect conclusions.

Regards,
Alan

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