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Questions about the ULN-2


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I don't want to hi-jack the ULN-2 threads that seem to have their own complexities. My questions about the ULN-2, in which I am quite interested, don't quite fit.

 

1) The ULN-2 can be powered with eternal power. Has anyone tried an SLA battery? My AC power if filthy with rfi. Before I got a power conditioner I would hear radio in languages--possibly eastern European--that I did recognize. Not sure where this comes from (I live in Albany, NY), near the NYS Capitol (I blame it on bureaucratic corruption; at least that makes as much sense as anything else). I am now using battery-powered Red Wine Audio amps, and think getting away from AC as much as possible is a good idea.

 

2) Has any one compared the headphone output, using high-quality cans, with high-end headphone amps?

 

Thanks,

db

 

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"I would hear radio in languages--possibly eastern European--that I did recognize. Not sure where this comes from (I live in Albany, NY), near the NYS Capitol (I blame it on bureaucratic corruption; at least that makes as much sense as anything else)."

 

Probably just foreign wiretappers listening in on your conversations. :)

 

Re the ULN-2 questions - I've not tried battery powered, although many batteries as used by the 'tapers' should be fine, connected via the XLR power input.

 

see http://taperssection.com/index.php?board=25.0

 

I've also not used the headphone out, I use Gordon's portable Proton for that, which sounds awesome, BTW.

 

clay

 

 

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Vinnie's new Black Lightning battery power supply should work just fine, he's already worked with Metric Halo to spec out requirements for the ULN-8 / Model 4, so I'm assuming this would be straight forward (and would be a nice match aesthetically with your other gear).

 

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for those that don't know, JP here is a regular at head-fi, and knows a thing or two about headphone sound. He was the organizer for Can Jam 2009.

 

He's also one of the first to tout the great sound of the ULN-2 / Sonic Studio 302 over there.

 

http://www.head-case.org/forums/home-source-components/6663-sonic-studio-302-aka-metric-halo-uln-2-a.html

 

Good to see you posting here!

clay

 

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