I have 2 REL t9's (very similar to your Sumiko but bigger) and they are the first subs that i can stand. Others seem strangely disjoint from the music.
(I an disregarding the 1 note wonders that people crank to show that "I have a Subwoofer!")
I think that the Speakon connection simply cuts through all that DSP / slope / rolloff / crossover jive, and you can achieve outstanding results with your ears. Maybe use a sound pressure meter.
I don't like DSP's, or 4th or even second order crossovers - they introduce too much delay/phase etc. anomalies.
The internals of the REL/Sumiko seem to have a simple, elegant solution and just work.
That said, I wish I had gotten the next size down, the t7i (I think).
I agree with setting the Sub(s) up so they energize the room the best, then introduce your mains.
And then make the adjustments on the Sumiko, not the amp or room correction.
I think that the Speakon connection simply cuts through all that DSP / slope / rolloff / crossover jive, and you can achieve outstanding results with your ears. Maybe use a sound pressure meter.
I don't like DSP's, or 4th or even second order crossovers - they introduce too much delay/phase etc. anomalies.
The internals of the REL/Sumiko seem to have a simple, elegant solution and just work.
That said, I wish I had gotten the next size down, the t7i (I think).
I agree with setting the Sub(s) up so they energize the room the best, then introduce your mains.
And then make the adjustments on the Sumiko, not the amp or room correction.