[Cynips]

Just wanted to share the impressions of the LT1612 and OPA2211 that I've posted in the opamp thread:

LT1612AID

OPA2211AIDDA

Both are listened to via the headphone analog out.

 

[ROBSCIX]

I built some dual 1611's and they sound quite good. I haven't got around to the 1612's yet. The OPA211's are also great I have been using them for quite a while.


Are they keepers for your setup?

Ever Consider some TO-99 version of your beloved LT1057's?
Are you still using them?

 

[Cynips]

Quote:

Originally Posted by ROBSCIX /img/forum/go_quote.gif I built some dual 1611's and they sound quite good. I haven't got around to the 1612's yet. The OPA211's are also great I have been using them for quite a while. Are they keepers for your setup? Ever Consider some TO-99 version of your beloved LT1057's? Are you still using them?

I could live with the OPA2211 (better than the 1612 IMHO), but the LT1057's are what I put back in after a finished session (which can last quite a few days mind you). I still haven't found (or really looked around much more) for a metal can version of them. Somehow I find it difficult to believe they would be better, almost. That said, however, I would be very interested in trying a TO-99 version out. I'm moving to another city in a few weeks, so I've got enough other things on my mind. I'll probably give it a try once things settle down in November or so.

 

[ROBSCIX]

Well we know the To-99 version of other opamps sound better then the chips version. I think the LT1057 would also follow this.
Yes, I like the 211's also in this card and others. I havn't built any 1612's yet as I usually go with the dual singl channle version over single dual channel version of a chip as they usually soudn better based on my tests and what I have read from others.

 

[chinesekiwi]

Any OPA2228P / OPA2228PA vs. LT1057 impressions?

That = fantastic if someone could provide one. Probably need a a decent buffer opamp as well. Any suggestions for a balanced sounding headphone?

 

[RicHSAD]

To me, the OPA2228P sound smooth and laid back, yet still detailed. Very pleasant to listen to. The LT1057ACN8 are definitely brighter and more aggressive. Good for electronic music, but they sometimes felt "lifeless" to me when listening to other genres.

Using the line out with the stock buffer, I felt the highs were a bit too tamed with the 2228P and too harsh with the 1057ACN8. Overall, I very much preferred the sound of the OPA2228 over the LT1057 in I/V, but you have to keep in mind that both my speakers and headphones are quite bright and aggressive to begin with. Really liking the sound of the OPAs through the HP out with my ATH-AD900.

I decided to swap the stock buffer for the LT1057 and so far I like what I am hearing. It seems to bring a little bit of brightness back into the sound, without taking the life out of it. I'll need to do some more back and forth between the LM4562 and LT1057 to be sure I really like this combo better.

 

[chinesekiwi]

Thanks. The other opamps = a tad expensive for my liking so the OPA2228P / OPA2228PA might be nice to try. Definitely like a buffer comparison

 

[ROBSCIX]

Use what works for you and your sound system.

 

[genclaymore]

These 2xLME4920HA's in I/V and 2xLME4910HA's in buffer sounds great,I enjoying this combo very well. Sound is more clean also like the sound stage is bigger and more =D.I even love the bass with this combo, I cant explain it.

Now I need to find some RCA cables that isnt fat like the ones I bought off monoprice for connection my Ampilfer to my HDAV RCA. As these monoprice cables are staticing since there too fat and dont drop down right behind my table.

 

[ROBSCIX]

You get them did you? Great stuff!

 

[genclaymore]

Yea I got them friday and forgot to let you know.

 

[ROBSCIX]

What do you think of the units?
The dual LME49710HA is being used by two others around here and they gave positive feedback so far.
They are using the dual LME49710HA as buffers on the STX...

 

[genclaymore]

There great thanks again, you wouldnt happen to know where i could find slim RCA male cables. that not thick like cable wire.

 

[haphalsou]

Thank you so much for the post. It's really useful.

 

[Funky-kun]

Got my C2C today and ran it through the line-out. Two things to note:

1) What this amp has over the STX amplifier is driving force, therefore control. Everything is more focused, notes start and end precisely when they have to and sustained bass notes retain their power through.

2) 2x LME49720 with LM4562 in the buffer is too bright of a combination and lacks the lowest bass octave. Therefore I overcame my fears and fitted a LME49720HA in the DIP8 socket by adjusting and cutting down the pins. No explosions after booting, so successful installation I guess. xD I don't have any soldering skills, otherwise I would have used an adapter (or a dual adapter for 49710s).

The sound in comparison to the old combo was a tad more refined, and balanced overall. Highs, mids and lows were in a better proportion. Especially the lower end - I feel there is more extension now.

Now two questions:

Would 3x LME49720HA be too much for the bass department in my combo? (C2C into HD650s)? For reference, I liked the HP out with 2x49720NA balance-wise.

Anyone know where to order 49710s on an adapter?