Outboard DACs

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Outboard DACsPre/Power Amplifiers
Rolling Boulders
Martin Colloms  |  Dec 16, 2022  |  First Published: May 01, 1997
hfnvintageThe no-compromise 2010 preamp and 2020 DAC are part of the US manufacturer's ongoing 2000 series project. Martin Colloms listens

Boulder's founder and chief engineer Jeff Nelson gained his first audio engineering experience with studio mixing desks and the design of a professional cartridge tape unit. This led to a constructive interchange with the late Deane Jensen, the audio transformer wizard and the originator of a classic 'operational amplifier'. This was not an integrated circuit but one implemented at good power and wide bandwidth via the use of discrete devices.

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