Stealth!??!..is it an U-BOOT or an audio device??! ;-)...I would ask where's the loot........probably I'll find jewel inside this case......... :-)
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..infact jewel lays inside strongboxes and Krell are heavy and very strong , that's means no vibration at all....and even a thick front alu panel.....by the way , I love this trendy grafite grey! |
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"cou cou!"....this is the eye of this device ....a reliable and very good CDM01...sometime I ask to myself why they stops producing all the best goods...(I'm only ironic.....I know exactly why) |
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a shark tooth digital signal from MD2 |
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a good mains filter.... |
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ooh well build! |
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mmm.....that's for oversampling ....some purists would prefear NOS ,even me thought! |
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Burr Brown most of time do a very good job with his DAC chips, sometimes great! |
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uuuh....so crowded!......... |
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old but fast Analog Devices opamps everywhere.... |
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mmm. so tidy and very good component....look! all resistors are WISHAY DALE and discrete toshiba! |
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most of capacitors medium size are tantalium..and I know how they works fine in audio! ;-) |
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Here you are the battlefield of digital to analog conversion! ;-) |
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It's an amazing device ,but even the best sometime needs care and I found on main PCB many dry welding and oxide everywhere..
....on the bottom side i noticed wasn't applied any insulating lacquer.....this could be a bug for a so expensive device!
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go on tweacking a little bit......let start with two socket for the new operational amplifier |
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....you can't find them DIP? .....most of time I find the best only SMD , so go on building an adapter.... |
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Yeah!!!No dubt AD8065 likes me so much since the first whimper...they works great inside this Krell!!! |
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....they're rated to work up to 24Volts but I made them work several time over this threshold , this time are 28Volts tot in differential supply....the result is a sharper sound and much more dynamic.....I know they're much more stronger than the specifications.
AD8065 are the single brother of AD8066.....they don't need to be introduced!!!....I think they sounds a tad better than the dual one!
Now the sound is impressive ....there is more sharpness, more room overall and you can distinguishing much better the insrument separation!!!
I think it's a very good improvement!!! Worth to try!
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