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AmpCasq: an OPA1622 integrated headamp project
AmpCasq: an OPA1622 integrated headamp project
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Old 19th September 2019, 07:42 PM   #181
adydula is offline adydula  United States
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Join Date: Aug 2010
Chris are u still out there ?

I just used the amp today with a new set of Focal Clears....just fabulous!

Alex
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Old 29th September 2019, 06:59 PM   #182
AIM65 is offline AIM65  France
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Join Date: Feb 2015
Location: Paris
AmpCasq: an OPA1622 integrated headamp project
Default Focal Clear

Hi Alex.


Pretty busy now, I'm currently building my very first pair of speakers...



Focal Clear....whaaou...beautiful headphone, i'd love to have a trial with my Ampcasq !

It's 55 and 104dBspl/1mW so it's ok for AmpCasq.
How does it compare paired with yout other head amp ?


Chris
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Old 29th September 2019, 09:43 PM   #183
adydula is offline adydula  United States
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Chris,

It works wonderfully! Its right up there with them all. Listening to Eva Cassidy with the amp amd Focal Clears....absolutely great together. No issue with either of the gain settings.

So good to here from you and neat to hear your building a set of speakers!!

Please let us know how that is going!

You mentioned you were looking at a dac a long time ago, did you ever do anything with that project?

All the best
Alex
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Old 30th September 2019, 09:14 PM   #184
AIM65 is offline AIM65  France
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Join Date: Feb 2015
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AmpCasq: an OPA1622 integrated headamp project
Default long way to dac...

Before entering the Dac project, I've been working on a lab supply, rearranging my lab and working on a sig-gen project with 4 layers pcb. Sig-gen is not finished yet, time to write the software was much longer than expected and pcb could enhanced.
In the meantime, I've been following Elvee's threads related to Ezmos and Old-fashioned amps and I decided to build a pair. But I didn't have suitable speakers to go with, this is why I'm currently working on a 2-way passive bookshelf speaker project. This not the straightest path but, when terminated, I'll have a lab, a lab supply, an amp, speakers and additional pcb skills available to start a DAC project ! This will probably be AK4493 or 4499 successors...
Thatís the plan, for now Ö
Chris
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