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Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp - Page 20

post #286 of 9242
Thread Starter 
Quote:
Originally Posted by Shopper View Post
Thanks! Just what I was hoping to hear. I have tried them in too different amps to be able to compare them.


Also LT1364 + OPA627 should be good, anyway.


Ouch... since Lawrence mentioned "the Chiarra" I'm not too sure that the AD797 and LT1028 were actually tested in the Zero
I think we'll be ok. I just found the list from my first purchase from Lawrence and it has been updated since then. Also, he told me in that email that he is looking forward to supporting his Zero buyers by recommending Opamp upgrades via his list and providing them at better prices from his location.
post #287 of 9242
ok cheers for your replies. Is there a date that the amps are expected to arrive?
post #288 of 9242
Mine got shipped out 3 or 4 days ago. They should be here in a weeks time more or less. Hopefully just in time for my getting home from christmas holidays.
post #289 of 9242
oh thats not too bad then. I wonder how long it would be if i put an order in????
post #290 of 9242
Thread Starter 
Quote:
Originally Posted by Shopper View Post
Now that was interesting to read. Unfortunately the list didn't include LME49720 (a close relative to LM4562 anyway - perhaps identical?), LT1364, LT1469, LT1122, LT1115, AD845, AD826, LM6172.

The LT1364 and LT1469 are "better" chips (for audio) than the LT1057 on paper (which I don't have) so...

It's also very nice to see that chips that aren't normally unity gain stable like the LT1028 and AD797 would work well in the Zero. Then all those Browndogs I just ordered this morning make more sense


These folks are proving really competent.
I find Lawrence's approach to Opamps quite refreshing and informative. Giving his impressions of each one on it's own merits and giving you a reference point by telling you which is closest, is probably the best way to "inform" others. If a person searches here and finds posts like those surrounding the iBasso D1, so many posts are about which Opamp is better than any other, or better than groups of other Opamps and then the next post disagrees and derails the whole thing. Reading these almost gives you a headache after while.

It would be so cool to have a Stickied "HeadFi Master Opamp Listing" that is in the same format that Lawrence is using. It would be a great reference tool especially for folks who are just getting into Opamp rolling. It would also save them money by letting them make a solid decision about which is best within their budget. It might seem like a super challenge at first, but users like Jamato8 have extensive and fair impressions of many Opamps in DAC usage, and those impressions would make for a excellent working foundation. Later, if wanted or needed, the list could be divided up into sections for "CD Players", "DACs", "Pre-amps", "Portable DACs", "Portable Amps" and the like. I don't think this list should get any more specific than that though, or it would be inviting disagreements in personal taste. Of course, this whole idea is just "IMHO", but I would help develop it as much as I could. Any thoughts on this? Anyone?
post #291 of 9242
Thread Starter 
Quote:
Originally Posted by Shopper View Post
Ok, but I don't want to (nor I probably would anyway) be the first to try with the AD797.


Btw, did Lawrence recommend those opamps only for the analog stage, or also for upgrading those two 5532s in the headphone amp board? Did he mention this at all
Just the analog stage, and I forgot to email him about the headphone amp board. Sorry. I've just had too much on my plate this close to Christmas!
I'll email him on the 26th and ask if he has any recommendations for the headphone board. Hopefully, he'll have another nice list!
post #292 of 9242
Thread Starter 
Quote:
Originally Posted by fault151 View Post
oh thats not too bad then. I wonder how long it would be if i put an order in????
It appears he is caught up now. I'd guess it would ship within a few days and then 5-7 work days for shipping.
post #293 of 9242
Quote:
Originally Posted by Penchum View Post
It appears he is caught up now. I'd guess it would ship within a few days and then 5-7 work days for shipping.
oh right, good. I have sent him a message about them amp. It may be a few days before a reply due to xmas day tomorrow. Cheers.
post #294 of 9242
Its Here!!! AHAHAHAHAHAHAHAHAHA.....ahem, sorry.
post #295 of 9242
Thread Starter 
Quote:
Originally Posted by arteom View Post
Its Here!!! AHAHAHAHAHAHAHAHAHA.....ahem, sorry.
Santa went postal!
post #296 of 9242
Quote:
Originally Posted by arteom View Post
Its Here!!! AHAHAHAHAHAHAHAHAHA.....ahem, sorry.
First impressions?
post #297 of 9242
I like it!

Well ok, I will say just a few thing. the thin sound that was coming out of my soundcard is definitely gone, now I get a much nicer full bodied sound, the bass is tighter, soundstage better defined. I am using a Denon D2000 set of phones.

I am starting to fall in love with this thing but really I think its much too early, I need to spend some time with my new toy!!


btw: I received a optical cable with the unit, how nice.
post #298 of 9242
Thread Starter 
Quote:
Originally Posted by arteom View Post
I like it!

Well ok, I will say just a few thing. the thin sound that was coming out of my soundcard is definitely gone, now I get a much nicer full bodied sound, the bass is tighter, soundstage better defined. I am using a Denon D2000 set of phones.

I am starting to fall in love with this thing but really I think its much too early, I need to spend some time with my new toy!!


btw: I received a optical cable with the unit, how nice.
Well done! Don't forget, the next 100hrs are "magic" hours. Things get very interesting (or addictive) during this time. That OPA2604 Opamp ain't to bad out of the gate, huh!
post #299 of 9242
I am new to op amp rolling, never done it before. I will listen to this for some time before I try to swap anything out. Hey got a question though, would you recommend I leave headphones plugged in during the burn in or no?
post #300 of 9242
You need a load for the amp or you aren't going to be burning much in. Some type of headphone should be plugged in.
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