SOLD: Corda HA-1 (Blue Modded)
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Jester

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FS: Corda HA-1 (Blue Modded)

This Corda HA-1 was bought this from one of Jude's recent auctions on E-Bay to support Head-Fi for $250. This was about two months ago, so the Corda is in brand new shape - except better! Ian (Head-Fi Member) performed most of the Corda Blue mods that make this thing sound fantastically better. The mods performed are:

-Replaced first stage with OPA637 opamps
-Replaced output stage with double stacked BUF634's
-Reduced output resistors to 10 ohms
-Changed resistor for bias current on OPA637's
-Reduced gain for new chips
-Added heatsinks

The full story on the mods can be found here:
http://www5.head-fi.org/forums/show...mp;pagenumber=1
Kelly's review also has more information:
http://www5.head-fi.org/forums/show...;threadid=14546

All in all, Ian spent about $60 on parts for these upgrades. Solder used was
very high quality Welborne Labs Silver Solder. All resisters were very high
quality Vishay/Dales. The result is an absolutely fantastic sound - the bass
is markedly improved, and there is much more openness and airyness. I wish I
didn't have to sell it, but I can't afford to keep three amps around.

Considering that $60 in upgrades were added I am only looking for SOLD shipped.

Please PM me with interest. I can email you pictures but it looks
exactly the same as stock Corda.
 
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Jester

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Bump...
 
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acs236

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What version of the Corda HA-1 is this?
 
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Jester

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When I get back to my office, I will post pictures and answer the questions above.

Thanks!

Jester

Quote:

Originally Posted by highflyin9
Any Pics, I took a look at that review but the images weren't loading.


 
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boodi

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pics ?
 
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Jester

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Ok - here they are pictures of the Corda HA-1 Blue (Modded):




 
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Jester

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SOLD!
 
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