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Kim Kyung-Ho - "00:001998" Here he sounds like Korea's answer to Stryper or Grim Reaper- but about ten years too late.

Circus Polka - For a Young Elephant(!)

Their versions of "Have a Cigar" and "Comfortably Numb" are just lovely.

"There is nothing like suspense and anxiety for barricading a human's mind against the Enemy. He wants men to be concerned with what they do; our business is to keep them thinking about what will happen to them." - C.S. Lewis, The Screwtape Letters

2-disc set. Just got Vol 3 & 5 as well.

Arrived in the mail yesterday. Epic music to blast on a Sunday morning! The neighbors will think we're watching "Excalibur"... *Lots* of dynamic range.

Black Moth Super Rainbow - Cobra Juicy

"There are two circumstances that lead to arrogance: one is when you're wrong and you can't face it; the other is when you're right and nobody else can face it." - Criss Jami

"Hey, I'm walking here!" Nice of him to include the Intrepid.

FWIW there's a pair of Phase Linear PL-580 speakers on eBay HERE : Note the beryllium tweeters! Made by Pioneer / TAD for PL. From the description: "Tweeter is ribbon with responce up to 120khz with efficiency of 96.5dB (SPL/W at 1-meter distance).Mid-Range is a dome-shaped driver with dual suspension system utilizing a pure beryllium diaphragm held by wire suspension and tangential suspension. Woofer is 15 inch dia. with usable reponce down to lowest octave, magnet is 8 inch dia. ferrite. Network can be by-passed for tri-amp config. and encloser is made of Apitong veneer board. The weight is 103lbs each, freg range is 28-120,000hz." And a link to more info about the P-series speakers: Phase Linear P-series speakers at stereomanuals.com

Magic Sword - Vol 1. Comes with a comic book! Recognize this, Gene?

FWIW there's triamping, and many of the popular active XO's are configurable as 2- or 3-way. Does the active crossover really leave nothing there? Here are the extreme cases: if the active passes everything with no effect, the passive sees the full signal, this section of the speaker is acting exactly as designed, but there's no point to having the active XO. If the active has a cutoff frequency or slope such that the output to the passive is nil, then... the active XO has a different cutoff frequency or slope than the speaker was designed with. If the active and passive XO have the same cutoff frequency and slope, then using them both will mean their effects are *additive*. Again different from how the speaker was designed. Anything else will fall somewhere between these cases. The overall effect may be better, worse, different, or unnoticeable... If you take advantage of the headroom you gain and *turn up the volume* past where you were limited before, then the amps and speakers, including passive XO's that are still hooked up, will see increased stress. The design, quality, and age of the passive XO components will determine if they fail. Stress increases distortion and other bad effects for pretty much everything, but it might still sound better for other reasons. You're welcome! I know my answers are vague, but I'm not an expert and it's tough to make predictions on overall improvements without an awful lot of data or experience. I hope it helps!

And a reminder that if you like to crank up the volume, or *have* to because of inefficient speakers, multiamping reduces the dynamic range of the signal each amp sees. If you take advantage of the headroom you've gained and use it, you'll be putting a lot more average power through your amps and speakers. Be careful!

No worries, Jim! Keeps us sharp, and gives us something to discuss! Check out yet ANOTHER THREAD that might help you understand the "diagonal biamping" setups more. Crossovers don't necessarily dissipate heat from the power signal that isn't of interest. An ideal capacitor or inductor would dissipate no heat at all, and usually manufacturers try to approach those ideals since low heat generally means longer life and friendlier to use. Sometimes the resistance of an inductor is deliberate or used to advantage. Even shunt-connected reactive crossover components can't pass too much current, or the amplifier will be unhappy. That said, there are often attenuating resistances and notch filters that *do* waste heat, and those can be reduced or eliminated by active crossovers. Passive crossovers can affect the load the amplifier sees, for worse or for better. And passive components can block harmful outputs from an amp, so they can help protect drivers. Passive biamping doesn't help the *voltage* headroom directly, but if the load is split between amps then their power supplies won't sag as much as a single heavily loaded amp would. It still spreads the current demands and IR and heat losses between amps, and reduces current-dependent distortion. I don't follow you there, Jim? *Active* biamping sends different signals than passive biamping, of course. If you leave the passive crossovers in place and connect the same way as for passive biamping, then the passive crossovers will *still* affect the signals the drivers see. Yes, the active crossover will be working, but so will the passives. The combined effect may not be optimum. Speakers are designed so the output of each driver is carefully controlled, especially in the tricky crossover region. That region may extend an octave or more on either side of the crossover frequency. Dropoff or peaking of sound from the driver, phasing, and directionality might not work out as well. The Pro approach is to use 24dB/octave (4th order) LR crossovers to get out of the crossover region as quickly as possible, which allows for greater driver bandwidth and power utilization and ease of positioning. But every speaker is different, so leaving passives in place might significantly change the sound.