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Best High Current amplifiers stable into low impedances

Seems like all I hear when reading Stereophile’s measurements when it comes to speakers: must be used with a High current amplifier stable at 2 Ohm. Most amplifiers rarely give specs related to 2 ohm loads. Most amplifiers are only stable into 8 and 4 ohm loads, and if they mention 2 ohm it seems they aren’t saying continuous, but peak, short term power.
With speakers becoming more complex and harder to drive, what are some high current amplifiers that have no problem with these 2 ohm or lower impedance speakers?

hiendmmoe
atlvalet
54 posts
 

@lanx0003,

Not sure on the "current" spec/capacity, but the 8008BB is dual mono rated at 200 watts into 8 ohms and 400 into 4.

It has two torodial transformers, each rated at 1.1 kVa. Each channel has two 35,000µ capacitors...which means each channel can store 171.5 joules of energy.

:)

ghdprentice
7,052 posts
 

OP,

 

Call up Pass or your local dealer. I am absolutely sure they will be able to address your concerns. I have owned Pass amps for well over thirty years and they have always exceeded my expectations in performance…. Especially in driving difficult loads. 
 

invalid
1,200 posts
 

Nelson pass addressed this question on the diy forum several years ago, he recommended the x600 monoblocks for the 1ohm apogee scintilla speakers.

fredrik222
522 posts
 

Classe Delta Mono, 1kW into 2Ohm

 

300W / 8Ω
600W / 4Ω
1000W / 2Ω (with AC line held constant)
 
the Delta Stereo can do it too :
250W / 8Ω
500W / 4Ω (with AC line held constant)
350W / 2Ω (with AC line held constant)
 
 
wspohn's avatar
wspohn
607 posts
 

I have one pair of bridged amps that puts out 30 amps (75 peak) into 1 ohm and 500 W into that load (when I bought them they were driving 1 ohm Apogee Scintillas) but they made less than 200 of them so I doubt you could find any.

I have another that I run in stereo that puts out 40 amps continuous (90 peak) and 475 W (if that’s not enough you can bridge them and get 1000 W) but the problem is that it is also a vintage amp and it would be a hunt to find one.

Depends on how patient you can be - they turn up on Audio Mart from time to time and you can check Hifishark to see what past prices have been.

Classe DR3 VHC and Jeff Roland 5. If you go for the larger Rowland 7 there are some for sale right now - pairs of monos for around $4K, which is a bargain price.

See

 

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