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what happened to Cary 500MB?

I came across a review from '05 of the Cary 500 mono blocks, and they thought they were outstanding!! So I researched some more, these are supposed to be amazing for SS, everyone's stoked and then, by mid'06 - nothing. Nary a mention. Can't find any used ones.
Still on Cary's website, though.
What happened? Maybe no one knows (like where the Federal Reserve has been lending money - sorry - I digress) - or did they "fall out of favor"? Although I didn't come across anything negative about them??
24phun
ajackson1
156 posts
 
McCormicks Input Imp is a little too low for the SLP's output Imp of 400ohms. there will be some bass rolloff. There are several threads that discuss this in more detail than this, actually, check this out http://www.stereophile.com/tubepreamps/906cary/index4.html
desalvo55's avatar
desalvo55
205 posts
 
Thanks Ajackson. I called Cary and they pretty much confirmed what you and others have said about a mismatch. They also mentioned that the CAD MB200's should be more than enough power to drive the C1's.
drubin
3,240 posts
 
I thought that with impedances, you want a >10:1 ratio, which you would certainly get with 10K ohm: 400 ohm.
tvad
9,467 posts
 
02-02-10: Drubin
I thought that with impedances, you want a >10:1 ratio, which you would certainly get with 10K ohm: 400 ohm.
It's important to consider the preamp's highest output impedance when using the ratio.

John Atkinson made the following comments in his measurements section of the Stereophile review of the SLP-05:
I got significantly higher values for the unbalanced output of 1500–1600 ohms in the midrange and treble, rising to 3400 ohms at 20Hz, with similar if slightly lower figures for the balanced output. The Cary preamp needs to be used with power amplifiers having input impedances of 10k ohms or greater if the bass is not to sound a little lean.
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