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Class A or Tube (or else?) for high pass (bi amp) of Infinity Quantum 2

I want to drive the (difficult Watkins design) bass of my Quantum 2 with a dedicated "brute" amp (have a Behring EP2500 and QSC702 reserved), active crossover (4x4 miniDSP HD). The passive OEM crossover states 200/600/4k. 

Free of the high power requirements for the high pass (how much power DO the 3 Emits highs, 2 dome mid/highs and 1 cone low/mid need???) I would like to use a sweet amp, maybe class A or even tube? 

LOW BUDGET is a must. 

Any ideas, suggestions comments. 

 

kraftwerkturbo
russ69's avatar
russ69
3,505 posts
 

It wasn’t the woofer that sucked all the power from the amp. You don’t want to under-feed the other drivers, good way to blow the tweeters. Not sure what happens when you bypass the factory crossover probably will make it a bit more efficient. 

russ69's avatar
russ69
3,505 posts
 

BTW, do you understand the crossover design? Not sure but I think it does more than just split the frequencies. I think the levels of each tweeter are different but I could be wrong. 

kraftwerkturbo OP
320 posts
 

Accordign to the factory published diagram, tweeters are all the same. There may be a version for the 3+1 (rear firing EMIT). 

I would try with active 2 way signal split first (not sure what to do with the 'internal' 2 way paths for the bass). But can ALWAYS just run passive 2 way (some versions of the Quantum 2 HAVE already binding posts for passive 2, and I am rebuilding the crossovers to factory spec for that reason). 

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