At times, some of us have swapped op amps in equipment (e-bay DACs spring to mind) to good effect.
Has anyone tried HDAM op amp replacements ?
http://www.ebay.co.uk/itm/221490276787? ... 1423.l2649
Op amp swapping.
- pre65
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#1 Op amp swapping.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
- Dave the bass
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#2
To me....It looks like they've taken all the transistors out of an 8 pin op amp and made the same IC but using discrete components.
Buy one Popz and lets find out!
DTB
Buy one Popz and lets find out!
DTB
"The fat bourgeois and his doppelganger"
- pre65
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#3
I'm poor, don't get my proper pension till June 2015.Dave the bass wrote:
Buy one Popz and lets find out!
DTB
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
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#4
HDAM seems to be subtly different for each device that Marantz produce - its a discrete current FB amp and will, of course, introduce its own noise etc.
Several schematics are out there - here's a couple:
Several schematics are out there - here's a couple:
Vivitur ingenio, caetera mortis erunt
- Dave the bass
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#6 Re: Op amp swapping.
I have used a similar one in a headphone amp, can't remember the name of the company but they did 3 different ones called sun earth and moon they all sound different I ended up with earth iirc sounds better than any opamp I've tried.pre65 wrote:At times, some of us have swapped op amps in equipment (e-bay DACs spring to mind) to good effect.
Has anyone tried HDAM op amp replacements ?
http://www.ebay.co.uk/itm/221490276787? ... 1423.l2649