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LISA III Available for Order - Page 33

post #481 of 1070
Quote:
Originally Posted by JimP View Post
What he said...that's the truth!. To pile on the LIII lovefest, I sold my Opera and kept the LIIIXP (nothing inherently wrong with Opera, but for me, the LIIIXP delivers the extra "wow factor" with the phones in my line-up; plus I like the form factor, and the bass boost!).
You are very right. my m902 is also supposed to be a higher class amp than LISA III, but yet LISA III somewhat exciting, inviting and fun to listen too. It definitely has a WOW factor.

I guess LISA III is very musical
post #482 of 1070
Quote:
Originally Posted by Ricey20 View Post
Yep, now i need to decide between standard or XP Brad told me they found a new battery to let the standard go up to almost 8 hours on the batch with high bias, next batch with lower bias will get 10 hours. I'm not sure if theres a huge difference between the lower and higher bias so still deciding
Brad had told me that the difference between two revisions is significant. However, nobody has the chance to side-by-side comparing them. But in theory and common sense from other top end headamp, the performance of high bias is like the high current mode which should somewhat benefit the sound performance.
post #483 of 1070
Oh man, I couldn't resist it...

If you want to make Lisa Expedition become more valuable than Standard, modify buffer to A for pure A output and it will become MUCH BETTER. Running time maybe decreased by 30% but sound quality improves a lot and no doubt if that mod can make Lisa really competes real $1000 amps.
post #484 of 1070
I cant decide If i should get the standard and maybe carry the power adapter with me if I need long run times or lug around the XP brick
Im wondering, is the standard or the XP the more popular model?
post #485 of 1070
Quote:
Originally Posted by WindowsX View Post
Oh man, I couldn't resist it...

If you want to make Lisa Expedition become more valuable than Standard, modify buffer to A for pure A output and it will become MUCH BETTER. Running time maybe decreased by 30% but sound quality improves a lot and no doubt if that mod can make Lisa really competes real $1000 amps.
Do you have any pix to show how this is done? I guess you need to solder some additional resistors to the op amps?
post #486 of 1070
Lexnasa the AD744 application on the LISA III is already class A by default. The only thing left is to adjust the bias of the output diamond buffer stage. There are two ways you can do that.

First, increase the input stage CCS's current. Second, change the emitter resistors.

Anyway, can someone tell me the LISA III's default bias is? It's interesting to know since the LISA III performs superbly even with decent long battery operation. (long battery life indicates lower bias).




Extras:

You guys REALLY should try the LISA III on discreet mode. It sounds absolutely fantastic.
post #487 of 1070
Quote:
Originally Posted by TzeYang View Post
Lexnasa the AD744 application on the LISA III is already class A by default. The only thing left is to adjust the bias of the output diamond buffer stage. There are two ways you can do that.

First, increase the input stage CCS's current. Second, change the emitter resistors.

Anyway, can someone tell me the LISA III's default bias is? It's interesting to know since the LISA III performs superbly even with decent long battery operation. (long battery life indicates lower bias).




Extras:

You guys REALLY should try the LISA III on discreet mode. It sounds absolutely fantastic.
Very Interesting, but can you please explain how these mods are beeing done. I'm a non technical person
post #488 of 1070
I don't really know you should be doing this if you don't have a little basics in understand how these amps work.

However, taken a look at how LISA III is being sold, the AD744s are soldered directly on the board. Now this makes modifying it harder.

Anyway, IF it's socketed, it's very easy. Just remove the L and R opamps, and jumper pin 3 to pin 5.

That way you bypass the L and R opamps directly . You get a feedback free, unity gain buffers that works excellent! Very suitable for IEMs.
post #489 of 1070
Thanks for explaining this
post #490 of 1070

LISA III SOLD OUT

Many thanks for all your support and enthusiastic response to the LISA III, However i bring sad news, Lisa III's are sold out and TRIAD Audio has not secured a contract as of yet to manufacture the Next batch. The Electronic assembly facility we were having make LISA's wants $120 USD per amp more than what they charged for the First batch. If Triad would have continued to have that facility make LISA's the price would have to go up by at least $120 dollars per amp if Brad simply just passed the increased cost on to the consumer by the same amount this would make the standard lisa III cost $620 USD and the XP cost $670 USD. The next option is offshore manufacturing and this is actavily perused at this time however at the end of the day so far still no agreement on making more LISA III's have been reached so i can not say when more of these Fine Amps will again be available, Hopefully soon but i am not counting my chickens before they hatch. Because of the foregoing the buy now button has been removed from the web site and everybody that ordered an amp ether has received theres or shortly will.
post #491 of 1070
Quote:
Originally Posted by ppl View Post
Many thanks for all your support and enthusiastic response to the LISA III, However i bring sad news, Lisa III's are sold out and TRIAD Audio has not secured a contract as of yet to manufacture the Next batch. The Electronic assembly facility we were having make LISA's wants $120 USD per amp more than what they charged for the First batch. If Triad would have continued to have that facility make LISA's the price would have to go up by at least $120 dollars per amp if Brad simply just passed the increased cost on to the consumer by the same amount this would make the standard lisa III cost $620 USD and the XP cost $670 USD. The next option is offshore manufacturing and this is actavily perused at this time however at the end of the day so far still no agreement on making more LISA III's have been reached so i can not say when more of these Fine Amps will again be available, Hopefully soon but i am not counting my chickens before they hatch. Because of the foregoing the buy now button has been removed from the web site and everybody that ordered an amp ether has received theres or shortly will.
Phil,

Don't know what to say. I thought I should say congratulations for the great market response to your LISA III, but I am kind of sad to learn that the supply is going to be limited when so many fellow head-fiers are still on the fence. The LISA III should be in more hands and I do hope you can find way to ramp up production in a cost-effective manner soon.

On the other hand, I am so pleased that I will be getting mine. And somehow I feel that this is going to be a collection item, a benchmark which many others will be compared against in a long time to come.

Even at US$650, the LISA is still one great, hight C/P amp. But the downside is that since many know it was US$500 before the mental barrier to take the plunge will the higher.

Please keep us updated on the production update. As you know, Christmas is not too far away and I guess the LISA III will be a perfect Christmas gift to many head-fiers in love

F. Lo
post #492 of 1070
We may end up with a amp that increases in value! Sweet for us but in reality I'd like to see them available again so more can experience this diamond in the rough!
post #493 of 1070
Quote:
Originally Posted by jlingo View Post
OH, I just noticed I received this certification stating Production Number: 19 of 100, limited edition. What would be the difference between the limited edition and not limited edition? Just a thought. I don't even get any T-Shirt like with UE11
Well I guess LISA III becomes Limited Edition afterall.
post #494 of 1070
Quote:
Originally Posted by TzeYang View Post
I don't really know you should be doing this if you don't have a little basics in understand how these amps work.

However, taken a look at how LISA III is being sold, the AD744s are soldered directly on the board. Now this makes modifying it harder.

Anyway, IF it's socketed, it's very easy. Just remove the L and R opamps, and jumper pin 3 to pin 5.

That way you bypass the L and R opamps directly . You get a feedback free, unity gain buffers that works excellent! Very suitable for IEMs.
Be sure to measure DC-offset before plugging in your headphones. Since this amp is not made for this kind of operation, you can't be sure transistors and other components are perfectly matched. With ill matched transistors, you could have several volts offset and wreck your phones.

I can only agree to that the LISAIII type buffers sound very good as open loop buffers, better than the common "diamond buffers". The problem is a high output impedance with a lot of crosstalk when used with low impedance phones. Another problem is that you're going to find that all opamps are just a different shade of bad and really colors the sound.

If portability isn't an issue, look at the JISBOS buffers at Headwize. Maybe not as warm and cozy sounding as the "diamond" type buffers, but the soundstage is amazing, so is the details. Since it's closed loop with low output impedance, they're perfect for low impedance phones.
post #495 of 1070
Oh, sorry to hear this. The limited edition is really limited supply.
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