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

Anthem MRX520
M5HPv4
VP160HPv4
QS10v4