Maggies with a subwoofer system - optimization?


I need advice on how best to improve the midrange and base on my Magnapans (1.6qrs)My idea is to relieve the panels of base duty ( only feed the signal above 100 to 150 hertz to the panels and let my Swarm subs take the low end signal). I assume my midrange will improve, and the solid base performance via the sub system will fill in well. I now run a Krell S550i integrated into the Maggies, and the Krell Pre output into the DaytonAudio SA1000 Subwoofer amp.

Any feedback is appreciated - will I lengthen the life of my panels? Am I wasting my time? 

Tom8999
tom8999

Showing 2 responses by stilljim

avitacom

Yes, several years back I added a Bryston 10B active crossover and another (matching) two channel amp to the 1.6's I have, gutting the passive crossovers. It was fairly simple (I could do it and I'm electronically challenged). Well worth the trouble and expense (about $2,000 for the used amp and 10B). Since the 10B is only a 2way crossover I just ran the sub through it's passive crossover. Blended pretty well IMO and very enjoyable with all kinds of music. The ultimate would be getting a 3way crossover to also feed the sub. I think Pass and Marchand are the two analog options available and there were several digital options at that time, DEQX was one, but I went simple to see if it helped the 1.6's and my system. Net - well worth the time and expense.

From what I understand, the 1.7's no longer have bi-wireable binding posts so it would require a fabricated set-up for the binding posts. Also, didn't Magnepan add a super tweeter to the 1.7's? That would complicate the wiring as you'd need something to act as a crossover for the tweeter. 

william53b

The 70 hz bump. Yep. I got lucky. I mounted some fiberglass/foam acoustic panels on one reflective wall and it tamed the bump. Shouldn't have, but it did.
OP

My 1.6's are going on 20 years old now and still going. No sign of delamination. And I listen at very loud levels. From my reading over at the Planar Asylum it seems room atmosphere is the biggest variable in panel life. Salt water (as in close to the ocean) and direct sunlight have been pointed out as two that will shorten panel life (cause delams').

Good luck with Dukes swarm. I've read a lot of good things about the setup.