Originally Posted by Martycool007
Can you offer any comparisons between the Seos-18 and the Seos-12 or Seos-15? I am holding out on starting my build until the Seos-15's are back in stock, as I plan to use the 4550's in the Seos-15's as my L + R's but for my center channel I plan to go with a Seos-18 and a Radian 951PB with a Be diaphragm, as I already have the Radian CD. I am very interested in knowing how the Seos-15, Seos-12 and Seos-18's all compare to one another.
Can you elaborate a little further on the BMS-4550 versus DNA-360? Is the sole advantage of the 4550 higher output?
Good work on this Rahula7! I know that many of us appreciate your efforts!
Thanks for the kind words! I hope the measurements are useful for others as well.
I don't have the SEOS-15. Each higher model goes lower and has pattern control to a lower frequency. As a general policy, I want control over where the sound goes down to the lowest frequencies. There are practical limits. A good compromise is 15" or 12" woofer and waveguide. I think the SEOS-15 is the sweet spot for most builds.
As far as I can understand, the graphs don't show any other advantage of the 4550 over the 360. Now, I'm still learning and I don't claim to know everything. It might be smoother or have less distortion, but I'm happy with the choice I made. The graphs are there -- you can draw your own conclusions.
In general, all the drivers and waveguides mentioned here are of a high quality. All of them will work. What many ignore is the crossover work and getting a good neutral balance. No matter which drivers you use, it will sound crappy if the crossover isn't right or if the balance is not right.
Originally Posted by tuxedocivic
Excellent results. I bet this speaker rocks!
Yes, it sounds good. I've been playing with the woofer response for a long time, and I'm finally happy with the sound. The importance of getting clean measurements from 100 Hz to 500 Hz cannot be emphasized enough. Once you get that range right, music sounds like music.