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Old 20th October 2012, 07:18 PM   #3511
sonnya is offline sonnya  Denmark
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Nice. I am about to make an integrated that settles at 120 - 150watt. But it Will get a dlna interface, USB, spdif and of course analog interface.

I do not Think i get permission to ADD "made for i*****" from Apple

But a High performance docking station "Mfi" with dac and discrete opamp Will be made.
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Old 20th October 2012, 07:26 PM   #3512
MiiB is offline MiiB  Denmark
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AppleTV will provide you with Airplay as well as optical out, at 100$ you don't really need any docking station...just good DtoA...
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Old 20th October 2012, 07:38 PM   #3513
sonnya is offline sonnya  Denmark
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No, that is correct.

But it Will have a lot of jitter you need to attenuate. In my solution the Dock Will have a reference clock right after the USB interface .

Yes you Can use airplay. No problem, but if you live in a neighbourhood with a lot of wireless networks. Loss of packages Will be a problem.

Apple also have the format alac that is lossless.

But i Will stop now as this belongs in another forum.
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Old 20th October 2012, 07:42 PM   #3514
MiiB is offline MiiB  Denmark
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Apple is about easy of use not so much quality.... surely you can reclock the optical input as well...

I agree another forum...This is for SSA... and spin-offs.
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Old 21st October 2012, 05:25 PM   #3515
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Sonny, call it i-Fi, I don't think I have seen this in apple yet.
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Old 21st October 2012, 05:27 PM   #3516
naf is offline naf  Indonesia
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Quote:
Originally Posted by shaan View Post
Congrats naf. How does it sound with higher PS voltage?
more powerfull...
does my SSA have been breakin?... the sound more smooth and more relax.

Shaan, does your servo version as you want to build is like peeceebee servo that you've posted earlier?
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Old 22nd October 2012, 08:31 AM   #3517
Magna is offline Magna  India
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Hi,

I've been watching this thread for a while and started working on my version of SSA based on post 347. I've a big 1.8KVA powersupply which will provide +/- 78V unloaded. I'd like to use Vfets at output simply because i want to find use for some of these Fet's found in my parts bin. Consequently i'd like to use Laterals for drivers, to provide suffiecient current to charge / discharge input capacitance of these Vfets. I've sucessfully used this setup in another amp which i've made about 2 years ago. I've learned somewhere else from this thread that the PSRR is not great with this kind of topology and hence i've added a Cap multiplier at the rails to power input stage.
The amp performs brilliantly in simulation. The THD20 is less than 0.015% near clipping at 4 ohms. The square wave response is good, clipping action is excellent without any clamping diodes, etc. Now the question is will this circuit work...?as shown. comments please....
Attached Files
File Type: asc SSA_CCS_K1058j162DRVS_K1530J201.asc (25.4 KB, 83 views)
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Old 22nd October 2012, 01:55 PM   #3518
shaan is offline shaan  India
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Hi Magna. 'been watchin' ya...

Welcome to the SSA thread.

I can't check your schematic from where I am right now but if you have gone through the thread then you know that everyone who attempted the SSA has been successful in building it and are enjoying music everyday with it. They shared their experience/experiments here which has enriched the SSA thread with valuable amplifier-building information and many different versions of "simple" symmetrical amplifiers with the SSA front end, making this one of the threads with most diverse ideas and possibilities. If your experiment is successful then it will be a new dish on the SSA menu, specially for lucky guys like you with VFETs in their kitchen. All the best.

Looking forward...

shaan



edit: please upload a picture of the schematic. thanks.
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Old 22nd October 2012, 02:11 PM   #3519
shaan is offline shaan  India
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Quote:
Originally Posted by masood View Post
dear shan,
I have etched this pee cee pee .but it is hard to me make holes .I tried to make holes but it is not finished .thanks for giving pee cee bee image(COPPER TRACK) thanking you yours ever masood
Hi masood.

Nice peeceebee.

All the best. Have a happy SSA experience.

shaan
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Old 22nd October 2012, 02:24 PM   #3520
shaan is offline shaan  India
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Quote:
Originally Posted by JOHN BALI View Post
Which one should I make?
I'm thinking Nico's SSA & Shaan's SSA
what is the big difference of it?
Soundwise I don't know, but pretty close I guess.

Technically Nico's has higher bandwidth than mine(probably a megahertz higher) and has higher slew rate. But has lower PS voltage limit.

My version is inspired by Nico's, so if your power supply is less than +-24V then go for Nico's SSA.

Quote:
Shaan maybe I will combine your SSA with Nico's one, please give your permission..?
Permission?
Come on man just go for it!

Quote:
I will make my own board, I will try as symmetric as I can do.
We're waiting!
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