Which basic amps can drive 1 ohm loads ?

Just to clarify things, the "Apogee mod" is the slang term that Sunfire uses for the mods that they do to their amps to better deal with very tough to drive, low impedance, low sensitivity speakers. Since Apogee's are the "ultimate" in terms of "low impedance, low output, high reactance" speakers, they chose to name the mods for the amps after those speakers. As such, Sunfire does not perform modifications to Apogee speakers.

Other than that, i'm sure that there are mods and tweaks that one can do to the various Apogee models. Sean
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You may find that the Zero Autoformer useful with low impedence speakers. The "Zero's" multiply the speakers' impedence allowing an easier load for your amp. I use them very successfully with Audio Research tube amps and Soundlabs. The designer recommends caution when using the Zero's with certain SS amps with excess offset voltage (details are in the literature) Check out the website for more information: www.ZEROimpedence.com.

Muralman1
Have you ever tried a 1 ohm load with the palladiums..
The head sinks are "v" grooved in the center and rather effective. As differential monoblocks, you have only one channel per chassis to cool... Granted the Krell ksa's have alot more Visible heat sinks, I have run most every kind of speaker load with the palladiums with no failure in the short term and no signs of fatigue.
All due respect,
Joe
Custom Audio LLC

Aragons will drive Apogees. Aragons will drive virtually anything but thats really not a secret.

Kool, nobody runs Aragons on Scintillas. Duettas, Divas, Calipers, yes, but not Scintillas. Scintillas run on an average 1 ohm, and dips down to .6 ohm. This pulls a tremendous amount of current through the amps, causing huge temp rises. This requires giant heat sinks or fans, neither of which the Aragon has.