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Posted by on Mar 18, 2010 in Audio | 0 comments

1176LN Compressor Limiter

I’m currently in the process of building two compressors based on the 1176LN revision F originally designed by Bill Putnam at Urei in 1966. The original Universal Audio 1176LN was a major breakthrough in limiter technology – the first true peak limiter with all transistor circuitry offering superior performance and a signature sound.

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Posted by on Mar 18, 2010 in Audio | 0 comments

Zen and the Art of Gaincloning

Few components, small size, and low parts cost resulted in a revolution of DIY “cloned” amplifiers whose reviews were surprisingly good for a chip amplifier of such simplicity. The small size allows for the creative design and construction of these amplifiers and the sonic performance is such that even hardcore audiophiles have a hard time ignoring this phenomenon. A well-made DIY Gainclone can compete favorably with amplifiers many times it’s cost.

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Posted by on Mar 17, 2010 in Audio | 0 comments

LM4780 Gainclone

I’ve been planning to build a Chip Amp for some time now. I’ve finally obtained some chassis parts and a transformer that should be perfect so I no longer had an excuse to put it off. I chose to use the LM4780 in a parallel configuration. This provides more output power than a 3875 or 3886 and allows compatibility with a wider range of loads without sacrificing audio performance…

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