Sanders magtech or odyssey kismet

You’re at no risk to try the Odyssey amps, as they have a, "no questions asked, 30 day return policy", same as Sanders. (http://www.odysseyaudio.com/sales-usa.html)

@bdp24-  Much of the venue ambiance info in your recording resides in in the lower few octaves.   Use a Crown amp and you'll lose it.   I've been using a slightly modded TransNova 9505, to drive my transmission line woofers, with excellent results in that regard.

@bdp24- I’m not crazy about typing, so I’ll try to keep this brief. Never having owned Tympanis, I’ve nothing concrete to offer there. I’m powering two SEAS L26ROY D1001s for bottom(X @ 250Hz/10th order), so the only commonality is a 4 Ohm/ch load. From some of your other posts, I’ve gathered you have a familiarity with live music in live venues and the sound. SS amps are generally good with initial transients and not as good with decay and bloom, until their prices/quality increase. Without getting into tube vs bi-polar vs MOS-FET, I’ve personally found the later to be a good compromise. The cues as to the volume and height of a recording space depend on an amp’s ability to convey each instrument’s sustain and decay, reverberating into that venue. I always recommended Crown(back in the day), for live reinforcement, do to their dependability/ruggedness and ambiance was(of course) generated within the venue. Regarding a current SS amp that won’t break the bank, Odyssey(as I mentioned earlier) offers some that would serve you well, probably better with their PS upgrades, given your need for juice. Don’t go too cheap and rob yourself of realism. btw: I often wonder about the power ratings stated by some manufacturers, not given in RMS.

@bdp24- @bdp24- Here’s an item of interest, if you can stand the fan noise or have a closet for isolation: (http://www.ebay.com/itm/HAFLER-Pro-500-Power-Amplifier-Two-Channel-225-watts-per-channel-25062/17217...) I used a DH500 for bottom end, 20+ years, with great results. This one already has polypropylene caps, on it’s board.  btw: Don't know if it will be an issue, but- most of your, "pro" amps will have XLR and 1/4" inputs, rather than RCAs.  Not hard to modify, but good to be aware.  I was glad my 9505 had all options

Can’t speak for everyone that actively bi-amps, but- I’ve always used a crossover that enables me to adjust for disparities between amps. My first was one I built using DeCoursey boards(1980), for my home system. I ended up selling that whole system to one of my regular shoppe customers. Used a Dahlquist DQ-LP1(modded), for the next 25 years. I’ve had my TacT RCS 2.2Xaaa(modded) ever since.  I loved the Dahlquist, but- the acoustic nightmare in which I'm now forced to listen REALLY requires me to use room correction.

You're welcome!