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Old 16th January 2013, 04:38 PM   #1
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Default Studio unbalanced vs Line Driver

I am at a crossroads in my studio. My DAC has unbalanced -10 outputs. I currently have a set of decent active studio monitors which have +4 balanced inputs. I need to decide whether to change to an amplifier with -10 inputs, build a DRV134 or similar line driver, or purchase a line driver. I was looking at ATIaudio's line driver, not sure about their quality and their design. Any opinions or thoughts on this would be greatly appreciated. I do want to stick with the DAC that I have for now. Thanks.
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Old 16th January 2013, 04:39 PM   #2
kevinkr is offline kevinkr  United States
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Build a quick and dirty line driver..
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Old 16th January 2013, 04:44 PM   #3
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I have a boston acoustics wall wart with +/-18. I can just hook that up to a pair of DRV134s using the cicuit that ti shows for DRV134?
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Old 16th January 2013, 04:52 PM   #4
kevinkr is offline kevinkr  United States
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I would assume so as long as the chip maximum voltage ratings are not too closely approached. Be sure to properly decouple the chip supply pins.

A simple CRC filter on each supply or even 15V regulators would assure that the supplies to the DRV134 are clean and ripple free.
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Old 16th January 2013, 06:33 PM   #5
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by kevinkr View Post
A simple CRC filter on each supply
Hi,

Not good for a class aB line driver.

rgds, sreten.
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