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Grado Fan Club! - Page 669

post #10021 of 26215
Quote:
Originally Posted by wje View Post
 

During my bout of insomnia early on Sunday morning, I placed an order for the Burr-Brown 2107 as well as the 2111.  Hoepfully, I'll get these this week.  But, I do have to say, even with the stock op-amp, my latest tubes, the Voshkod 6ZH1P-EV (about $40 shipped for a new pair from YenAudioStore), I'll have to say that the sound is just sweet to my ears.

 

Fortunately, the op-amps are somewhat cheap to try and see how things sound.  Getting the OPA627 from Burr-Brown is supposed to be a great op-amp too.  However, you'll need two op-amp chips and a Brown Dog adapter.  But, there's a big risk of getting some counterfeit chips too as many from China are just that - fake.  Instead, buying from DigiKey, Mouser, etc. might be a better alternative on the 627, though I havne't read too much on that chip with the Little Dot.  Finally, some people have sourced the OPA-627 from some older audio receivers before tossing them.  If manufacturers such as Yamaha and their older audio/video receivers used the chips, you could get a pair that they used for each channel.  I think the 627 has been around a long time (15+ years?) due to the popularity.

Voshkod's rule. 

post #10022 of 26215

and the OPA2107 is great too. interesting to see how these sentiments haven't changed on  the board, seeing as I upgraded my op amp and my tubes over a year ago. 

post #10023 of 26215
Quote:
Originally Posted by Melvins View Post
 

and the OPA2107 is great too. interesting to see how these sentiments haven't changed on  the board, seeing as I upgraded my op amp and my tubes over a year ago.

 

I think most of us are cautious as many members have invested heavily into the other options for testing purposes and then posted the results to indicate that some model numbers / brands were not as good as others.  It's always easier to "go with what you know" vs. not doing so ... which can cost you more $$.

post #10024 of 26215

Thanks again for all the info :)

post #10025 of 26215

Once you get all these upgrades to the LD1+ you need to let the rest of us know if this is the 'go-to' amp for Grado's. I could have bet that you could, at one time, order the LD1+ with both the upgraded tubes and the op-amp, but when I looked last night it appears you can get it with the good tubes but no op-amp options are showing now. Ah well the op-amps are super easy to replace and cheap so not a big deal. Mainly want to know if this amp sounds better than the MkIII with Grado's. Be even better if someone could do a before and after mods comparison. If not to the MkIII then maybe to another good amp like the Lyr for example.

post #10026 of 26215
Quote:
Originally Posted by HPiper View Post
 

Once you get all these upgrades to the LD1+ you need to let the rest of us know if this is the 'go-to' amp for Grado's. I could have bet that you could, at one time, order the LD1+ with both the upgraded tubes and the op-amp, but when I looked last night it appears you can get it with the good tubes but no op-amp options are showing now. Ah well the op-amps are super easy to replace and cheap so not a big deal. Mainly want to know if this amp sounds better than the MkIII with Grado's. Be even better if someone could do a before and after mods comparison. If not to the MkIII then maybe to another good amp like the Lyr for example.

 

I think since the LD I+ and the LD MK III sell for about $100 and $160, respectively, it's kind of a mismatch when comparing them to the Lyr, as the cost for that amp is $449.00.  To my ears, the LD I+ is quite impressive, and has very few shortcomings for what is provided.  It's an excellent performer.  While Grado Schiit will be offering their $129 tube amp shortly, many of us Grado owners will not be able to adopt to that device as it appears to not do as well with low impedence headphones and the amp with the tubes can exhibit some effects of microphonics. The amp might be a better match for other headphones - 80Ohm, 250Ohm, etc.


Edited by wje - 10/22/13 at 3:17am
post #10027 of 26215
Quote:
Originally Posted by HPiper View Post
 

Once you get all these upgrades to the LD1+ you need to let the rest of us know if this is the 'go-to' amp for Grado's. I could have bet that you could, at one time, order the LD1+ with both the upgraded tubes and the op-amp, but when I looked last night it appears you can get it with the good tubes but no op-amp options are showing now. Ah well the op-amps are super easy to replace and cheap so not a big deal. Mainly want to know if this amp sounds better than the MkIII with Grado's. Be even better if someone could do a before and after mods comparison. If not to the MkIII then maybe to another good amp like the Lyr for example.

 

The OPA2107 op-amp is free from Texas Instruments.  All you have to do is request a sample on their website. :)

 

The specs make it pretty clear that the Mk III or IV (OTL amps) will not perform nearly as well with Grados as the I+ (hybrid amp).  But I haven't heard them, so I can't say they will sound bad

post #10028 of 26215
Quote:
Originally Posted by wje View Post
 

 

I think since the LD I+ and the LD MK III sell for about $100 and $160, respectively, it's kind of a mismatch when comparing them to the Lyr, as the cost for that amp is $449.00.  To my ears, the LD I+ is quite impressive, and has very few shortcomings for what is provided.  It's an excellent performer.  While Grado will be offering their $129 tube amp shortly, many of us Grado owners will not be able to adopt to that device as it appears to not do as well with low impedence headphones and the amp with the tubes can exhibit some effects of microphonics. The amp might be a better match for other headphones - 80Ohm, 250Ohm, etc.

The LD 1+ really opened up once you get into some non standard tubes... the 6HM5 and 6DT6A are very interesting tubes to explore and are are far better then the "upgraded" ones... and now over in the LD tube rolling thread we've been working on adapting 9 pin tubes... its crazy the amount of innovation and variety of choice offered in that thread.

post #10029 of 26215
Wait...Grado is going to offer a tube amp?
post #10030 of 26215
No, schiit is about to offer a small tube amp aimed at high impedance cans
post #10031 of 26215
Ah...not so great for Grados then...
post #10032 of 26215
SI si
post #10033 of 26215

ATTN: Gradophiles

 

I've decided to let my woodied SR225i and SR60i go to make room for some new DIY projects. As such, I thought I'd give you guys priority.

 

The post is here:

 

http://www.head-fi.org/t/686932/some-woodied-grados

 

If you copy and paste this post into a PM, I'll knock off a few bucks as a Grado Fan discount. 

post #10034 of 26215
Quote:
Originally Posted by JoeDoe View Post
 

ATTN: Gradophiles

 

I've decided to let my woodied SR225i and SR60i go to make room for some new DIY projects. As such, I thought I'd give you guys priority.

 

The post is here:

 

http://www.head-fi.org/t/686932/some-woodied-grados

 

If you copy and paste this post into a PM, I'll knock off a few bucks as a Grado Fan discount. 

ahhh awesome

post #10035 of 26215
My uncle just had a listen to my Grado... He was nothing but impressed and said that his wallet is about to get blown! Shall pair these babies with a FiiO E07K and see how it turns out next month xD
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