[Fastnbulbous]

My D10 Cobra departed Hong Kong on Wednesday and arrived on Thursday. Amazing!

I have to say, other than the attraction for those who like to tinker, I don't get the whole Op-amps thing. Is it different approaches to distorting the signal to simulate the sounds of analog turntables and tube amps?

 

[HeadphoneAddict]

Quote:

Originally Posted by Fastnbulbous /img/forum/go_quote.gif My D10 Cobra departed Hong Kong on Wednesday and arrived on Thursday. Amazing! I have to say, other than the attraction for those who like to tinker, I don't get the whole Op-amps thing. Is it different approaches to distorting the signal to simulate the sounds of analog turntables and tube amps?

No, it's a way to match the amp to your personal headphones to lessen the distortions in the sound.

 

[qusp]

Quote:

Originally Posted by Fastnbulbous /img/forum/go_quote.gif My D10 Cobra departed Hong Kong on Wednesday and arrived on Thursday. Amazing! I have to say, other than the attraction for those who like to tinker, I don't get the whole Op-amps thing. Is it different approaches to distorting the signal to simulate the sounds of analog turntables and tube amps?

the op-amp is the key part that drives the analogue section of your amp; did you buy you amp to distort the sound?? no as HA said each different opamp has slightly different performance and therefor will exhibit slightly different synergy with your headphones or the type of music you listen to. some will have amazing bass and soundstage, but not as good in the highs and detail. some will be uber fast and detailed, but not so powerful or well performing with bass slam. some may be very balanced across the whole frequency range, but may not have the best soundstage. and then you have the buffers, which add another way of tailoring the performance/specs of the amp section. they (op-amps and buffers) only effect the amp section though, so will have no effect on the quality of the signal the amp is receiving

so basically the search is to find the best combination of op-amp/buffers to suit your taste in sound sig, music and headphones.

but yes tinkering is part of the fun too

 

[jamato8]

I still prefer the stock setup. I have listened to many different combinations but the most open, dynamic and transparent, to my ear, is the stock opamp and buffers. I don't have the 2228 to try out though. So with this caveat present. Also with my phones and ears. It is fun to try the many opamps and to mold to your ideal.

 

[HK_sends]

Quote:

Originally Posted by jamato8 /img/forum/go_quote.gif I still prefer the stock setup. I have listened to many different combinations but the most open, dynamic and transparent, to my ear, is the stock opamp and buffers.

I'm finding that the stock opamp with the AD8656's as buffers really syncs well with my D2000 cans.

-HK sends

 

[HK_sends]

Quote:

Originally Posted by HiFlight /img/forum/go_quote.gif IMHO, the OPA228/AD8656 combo considerably betters the performance of the AD8066. Much better detail and considerably larger and deeper soundstage. Quite speaker-like. By itself, the OPA228 seemed rather unremarkable, but paired with the AD8656 as buffers, it is a totally different performer.

HiFlight, just wanted to confirm; are you using OPA2228 or OPA228 for your setup?

Thanks,
-HK sends

 

[clasam]

Quote:

Originally Posted by HK_sends /img/forum/go_quote.gif HiFlight, just wanted to confirm; are you using OPA2228 or OPA228 for your setup? Thanks, -HK sends

It's 2228, the 228 is single channel, I believe. I am one of the people who have an opa2228 that was sent from Hiflight

 

[Tom1510]

My D10 has arrived today, just 5 days after I ordered it.

The sound is smooth as silk, can't stop listening. Now waiting for my es3x...

 

[jamato8]

Listening the the Dead Set. What a great live recording. And the sound via my 9's and the optical out of the iRiver to the D10. Just too good. :^)

 

[HK_sends]

Quote:

Originally Posted by clasam /img/forum/go_quote.gif It's 2228, the 228 is single channel, I believe. I am one of the people who have an opa2228 that was sent from Hiflight

Great! I ordered the right one, then.

Thanks!
-HK sends

 

[HK_sends]

Wow, this is a nice amp! I find myself ignoring my P-51 Mustang and SR-71A more and more. The sound I get with the Denon D2000 cans is incredible. I'm not even using the DAC that much.

I start to listen, then I drift off into la-la-land...

-HK sends

 

[dazzer1975]

mines mellowed right out since i first got it, albeit i dont use my se530's with the d10 nor the stock op-amp or buffers but it has developed into a lush and liquid experience which is a delight to listen to.

 

[iszatso]

refresh us again on your choice of opamps and buffers and config for the lush liquid sound?

 

[clasam]

Quote:

Originally Posted by iszatso /img/forum/go_quote.gif refresh us again on your choice of opamps and buffers and config for the lush liquid sound?

For me, OPA2228 +LMH6643 or LTC6241HV + LMH6643

 

[qusp]

LMH4032 with AD8656, at the moment playing with LTC6241HV with AD8656 (quite nice as well, not quite as liquid as 4032 to my ears) waiting on OPA2228