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JDSLabs C421 Preorder is live... - Page 34

post #496 of 692
7/11/12 at 10:54pm

Hey Raines. Long time no talk. How are you mate? :D Seems that we have the same amp, uh? Fabulous, simply fabulous.

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post #497 of 692
7/12/12 at 6:29am

I wonder if John would ever get to do full size amps and Dacs... I for one would definitely get them!!!!

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post #498 of 692
7/12/12 at 6:41am
Quote:
Originally Posted by gelocks View Post

I wonder if John would ever get to do full size amps and Dacs... I for one would definitely get them!!!!

It's called O2 with ODAC. wink.gif
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post #499 of 692
7/12/12 at 8:52am
Quote:
Originally Posted by ClieOS View Post


It's called O2 with ODAC. wink.gif

 

LOL!

Not his design though... and input for the ODAC is limited to just USB... I meant FULL featured amps/dacs...

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post #500 of 692
7/12/12 at 9:19am
Quote:
Originally Posted by gelocks View Post

I wonder if John would ever get to do full size amps and Dacs... I for one would definitely get them!!!!

 

The talk of a larger O2 or (desktop sized) amp has been going around for quite a bit of time.  When we'll see NWAudioGuy produce these is anyone's guess.  However, since the ODAC has been launched, I'm assuming that time and focus now might be able to be applied to that other amp size.

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post #501 of 692
7/12/12 at 4:50pm
Quote:
Originally Posted by miow View Post

Hey Raines. Long time no talk. How are you mate? :D Seems that we have the same amp, uh? Fabulous, simply fabulous.

 

 

hey my friend:D:D:D

 

here we go again in audio journey:D

 

 

 

C-421 2227?  wonderful!!! much better than the cmoyBB:D

 

 

 

not waiting for denon 5000:D

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post #502 of 692
7/13/12 at 4:46pm

I now have two C421 8620s.  If anyone has a C421 2227 and wants to trade for one of my 8620s let me know.  I'd like to be able to compare the differences.

Thanks,

Steve

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post #503 of 692
7/17/12 at 7:11am

Has anone tried the laser machine of JDSLABS Engraver yet? I think it is really beautiful and awesome. Oh by the way, JDSLABS said that it is free, just order when you buy new ones from JDSLABS. I am thinking what logo or picture on my  C421 in the near future.


Edited by LoveKnight - 7/17/12 at 7:23am
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post #504 of 692
7/17/12 at 7:43am

i only saw it after getting them...:(
 

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post #505 of 692
7/17/12 at 8:36am

I loved it.
 

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post #506 of 692
7/17/12 at 8:52am

All the more tempting now.

 

Question to owners. Does the supposedly high output impedance affect your use with 32ohm headphones?

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post #507 of 692
7/17/12 at 12:23pm

If yo mean in a bad way - nope.  The sound is clean, impactful, and the dynamics full when listening with my Grado or Yuin PK1. It's an impressive amp.  I tried the OP2227 and was impessive, but like others, I prefer the AD8620. Either one will provide the current for 32ohm headphones.

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post #508 of 692
7/17/12 at 1:39pm

I think in Tyll's review, the C421 measured at almost 10 ohms output impedance, so I was worried about the 1/8th rule. Thanks for the quick reply!

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post #509 of 692
7/17/12 at 3:23pm
Quote:
Originally Posted by tzjin View Post

I think in Tyll's review, the C421 measured at almost 10 ohms output impedance, so I was worried about the 1/8th rule. Thanks for the quick reply!

 

Yeah I believe John replied that the output impedance is a result of extra ferrites (IIRC) that were added just before the output to help minimize/prevent electrical interference (cell phones, etc).  I've yet to run into any issue, though my cans are 70ohm so not as far off the rule you mentioned.  John also mentioned that you could request him not to add the ferrites on a custom build if you were concerned about the output impedance.

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post #510 of 692
7/17/12 at 6:45pm
Quote:
Originally Posted by alphaphoenix View Post

If yo mean in a bad way - nope.  The sound is clean, impactful, and the dynamics full when listening with my Grado or Yuin PK1. It's an impressive amp.  I tried the OP2227 and was impessive, but like others, I prefer the AD8620. Either one will provide the current for 32ohm headphones.


Hi alphaphoenix,

 

What do you prefer exactly on the AD8620?

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