Sounds great to me also
I got my samples and put them in my modified Marantz CD63 CD player in place of the OP-249's of my original mod 10 years ago. Bass was equal and everything else was better, in a not at all subtle way.
The sound is very fast, transparent, dynamic, focused, and noiseless. Before the substitution I had a bit of general haze that the music emerged from. There is now just silence that notes appear from and have greater attack and dynamics.
Its taking some getting used to. My old opamps were euphonic with their warm, fuzzy haze. The LM4562 is just clear and crisp in comparison, with attention-grabbing dynamics. I may try to tame that with higher ESR bypass caps!
I'm ordering some SOIC samples now. Its worth burning my fingers on my DVD player and sound card to use these guys!
Can't wait for the quad also - I've been wanting to find exceptional ones for the front end of my Crown Macro Reference amp.
I got my samples and put them in my modified Marantz CD63 CD player in place of the OP-249's of my original mod 10 years ago. Bass was equal and everything else was better, in a not at all subtle way.
The sound is very fast, transparent, dynamic, focused, and noiseless. Before the substitution I had a bit of general haze that the music emerged from. There is now just silence that notes appear from and have greater attack and dynamics.
Its taking some getting used to. My old opamps were euphonic with their warm, fuzzy haze. The LM4562 is just clear and crisp in comparison, with attention-grabbing dynamics. I may try to tame that with higher ESR bypass caps!
I'm ordering some SOIC samples now. Its worth burning my fingers on my DVD player and sound card to use these guys!
Can't wait for the quad also - I've been wanting to find exceptional ones for the front end of my Crown Macro Reference amp.
Re: Sounds great to me also
Let them break in some time before replacing your caps. They takes about 100 hours to play correctly. They will have mellower sound later and you will not loose definition. At first when new, bass is lacking and the hi-mids are a little hard.
Marc
markk02474 said:
Let them break in some time before replacing your caps. They takes about 100 hours to play correctly. They will have mellower sound later and you will not loose definition. At first when new, bass is lacking and the hi-mids are a little hard.
Marc
National would like to thank you very much for your sample order for the LM4562NA. Your devices will ship from our warehouse in Singapore as soon as possible.
Did I made it😕 or my request is still waiting for an approval?
Did I made it😕 or my request is still waiting for an approval?
Seftali,
it means you did (i.e it was approved). They will send you another e-mail when it actually ships from the warehouse.
Cheers
it means you did (i.e it was approved). They will send you another e-mail when it actually ships from the warehouse.
Cheers
clem_o said:
Thanks.. The reason why I can't believe is it just take seconds to get an approvel🙄 Requested some lm4780's also😀
Hehe, well it also takes seconds to get a disapproval - probably some computer system checking certain 'rules' and availability...
Cheers
Cheers
I think it's regeonal availability. Mine samples (to the US) were shipped from Asia. It seems the Europe is where the denials are occuring, and I am guessing it is due to a stock shortage there.
Just received a LM4562HA in the metal can package and 3 in dIP. Not sure what is the difference between different packages...
Hermetics, dissipation and the ability to ground a metal package if needed - all "+" for the metal package, except of course cost, if one has to buy it...
🙂
cheers
🙂
cheers
"It seems the Europe is where the denials are occuring"
I ordered mines on october 18th and received them 5 days after. ..🙂
J
I ordered mines on october 18th and received them 5 days after. ..🙂
J
a lot of the approval is from the email address you use. if you use a common ISP they will probably deny you, if you have a business email then it will be ok (over here its like that anyways)
but there is also a shortage, because when i first went there it said you could get 5 DIP or 3 metal, now its 3 DIP and 1 metal.
I have a small site which gives free email addresses, so i just created one on there which forwards to my common ISP one 🙂
Anyways i ended up getting 5 DIP and 1 Metal can
they are defiantly quieter in my mic preamp! i havent tried them in any output signal path yet.
but there is also a shortage, because when i first went there it said you could get 5 DIP or 3 metal, now its 3 DIP and 1 metal.
I have a small site which gives free email addresses, so i just created one on there which forwards to my common ISP one 🙂
Anyways i ended up getting 5 DIP and 1 Metal can
they are defiantly quieter in my mic preamp! i havent tried them in any output signal path yet.
Portlandmike said:Just for the record, Bob Pease is a wonderful guy, but he is quite hard of hearing. He only hears in one ear.
I hate to admit this, but I've been sitting on some LM4562's for some months now. Just no time.
I have a few to stick in my UcD amp, and maybe to try in a preamp.
Mike
Did you try them with 1 volt output on 200 pF load?
That OPA365 seems like a good modification option for single supply (+5V or less) applications. Specs like the 627, comes in a dual, and MUCH cheaper!
So just out of curiosity, why does this opamp need to drive a 600 ohm load? The last time I checked my speakers were 8 ohms... What's opperating at 2k and 600? Thx
Headphones...
I have samples on the way but it was much harder than usual. I spoke to the EU office directly via email after the US one shunned me. I would of bought them but you cannot get them anywhere.
I have samples on the way but it was much harder than usual. I spoke to the EU office directly via email after the US one shunned me. I would of bought them but you cannot get them anywhere.
Are you wanting to use these to directly drive speakers?? I think they may be a little too short in the current realm to do any good! These devices are simple opamps, not power opamps like the LM3886 etc. They are not intended to drive large speakers. If you are talking about using them in applications where they are in the guts of an amp or filter (as opposed to the output stage), the the load of your speakers won't matter.Doovieman said:
Can you give a little more information about your intended application? Maybe we can answer questions a little better then.
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