[gelocks]

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have you tried the HD600 w/ the C421 for kicks?

 
I have, and they sounded really good! The c421 has enough power to drive these either in low or high gain!

 

[Ultrainferno]

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have you tried the HD600 w/ the C421 for kicks?

 
I use a HD650 daily at work with the C421 and while it sounds good it of course doesn't show what the Senns are capable of with a decent full desktop setup

 

[miow]

Guys, just a doubt: does the C421 provides more bass than the FiiO E11? If so I will order it now. Just need to know this.
 
Oh, and what can I expect in terms of sound improvement for the E11? Better instrument separation perhaps? That would make me pull the trigger (along with the bass). And are we talking big differences or very subtle, almost unnoticeable ones?
 
Please save me the $200

 

[TheKarakiri]

Where do you guys order you C421 from? The JDS website? I am currently in the US. One more question: Which do you guys prefer? The OPA2227 or the AD8620?

 

[Ultrainferno]

Quote:

Where do you guys order you C421 from? The JDS website? I am currently in the US. One more question: Which do you guys prefer? The OPA2227 or the AD8620?

JDSLabs! The OPA question again. Check this tread for multiple answers

 

[zeitfliesst]

Read this thread from post #1. That should really give you enough answers.
 
Quote:

One more question: Which do you guys prefer? The OPA2227 or the AD8620?

 

[Raines]

 
I have the 2227 and i love it.
 
Short answer it seams that 2227 is warmer, more "fun" and full.
 
8620 is more analitical, some people say is thin or dry .... maybe is more true to the sound
 
 
i went with the 2227
 

 

[ostewart]

Mine arrived today, what can I say, build quality is fantastic, form factor, a little wider than my iPod classic, and the sound is a big step up from the fiio E11.

I have the AD8620 as I like a neutral sound.

 

[zeitfliesst]

How could you really tell that it was neutral? It's one of those words I don't seem to like so much in the audio world, so it's got me worried I made the wrong choice here.
Quote:

Mine arrived today, what can I say, build quality is fantastic, form factor, a little wider than my iPod classic, and the sound is a big step up from the fiio E11.
I have the AD8620 as I like a neutral sound.

 

[miow]

From what I've been reading the AD8620 OPamp is more analitycal, which should make a better marriage for darker phones, I guess.

 

[zeitfliesst]

Guess what, I just got the c421 in the mail. Gotta love that fresh scent of electronic equipment (you guys probably know what I'm talking about). Despite my concerns over the 8620 opamp, it sounds great paired with the ES5. My only gripe is that the minimum volume level required to get out of the channel imbalance stage is just a bit above what I would normally prefer. Other than that, I'm loving this thing already.

 

[zeitfliesst]

OK, so to get around the problem of too much volume I just applied a gain of -6.0db using mp3gain and I now have much better control of the volume. This is going to be bad news for my car audio because the volume maxed out on that poor thing barely satisfied my needs. Oh well, I guess I just need to upgrade the damn thing.

 

[zeitfliesst]

Does anyone have a good solution to prevent the gain switch from moving? I get incredibly anxious of accidentally tripping it and blowing my ears and brains out when using the ES5. I wish the switch was recessed (like the RSA amps) or at least harder to move.

 

[ClieOS]

A bit paranoid, won't you say?

 

[zeitfliesst]

Not at all. The switches, dials and jacks are so close to each other so it's not inconceivable that I accidentally touch the gain switch. You might not have experiened incredibly high volumes with sensitive IEM's, but when you do, you probably won't call me paranoid.
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A bit paranoid, won't you say?