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Shanti Dual LPS 5V/3A , 5V/1.5A
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Old 29th September 2021, 08:59 PM   #2311
TimCurtis is offline TimCurtis  United States
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Ok, just let me know ahead of release if kernel bump or driver compile is needed so I can get those into the build process :-)
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Old 13th October 2021, 05:01 PM   #2312
chris14 is offline chris14
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Quote:
Originally Posted by cdsgames View Post
Hello

sorry been out with the flu .
For the AMP I hope that next week I can show some pics. AMP and buffer (preamp) is final . PSU is working but I need to incorporate the changes/mods into new PCB . Not a big deal
Digione Sig 2 and USBridge 4 , depends on components shortage for mass production . The new PCB , proto of DS2 , should arrive this week.
On this generaton , we have used a 8 super-regulators (discreet ) powering Xtals , buffers and flipflops , basically anywhere that SPDIF signal is present . Clocks are based on Andrea Mori design (so we used our own xtal , proudly made in Canada) with our own sinewave and squarer ICs.

Usbridge4 ...we also used superregulators and our own Xtals for the USB clock .
Understand that timing of production is dependent upon component availability, but is there any more detail/results that you can share on the Amp & buffer?
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Old 15th October 2021, 10:07 AM   #2313
surfer2010 is offline surfer2010
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Default Revolution with Optical TOSLINK (SPDIF) input?

Hello


are there any plans to implement an Optical TOSLINK (SPDIF) input for the Revolution DAC?


this would be very helpful for us.


Please let us know.


Thanks


Phil
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Old 15th October 2021, 04:34 PM   #2314
Markw4 is online now Markw4  United States
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TOSLINK/SPDIF are harder to implement well as compared to asynchronous USB. The reason is that such USB designs can be made fully synchronous with the dac clock while maintaining bit-perfect data integrity.

For TOSLINK/SPDIF type inputs there is another clock at the source end that is not synchronous with the dac clock. Dealing with that requires ASRC or else a FIFO. ASRC resamples the data, and cannot fully remove all incoming jitter. FIFO introduces a time delay and usually requires special programming of an FPGA. The above types of considerations increase dac cost and complexity.
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Old 5th November 2021, 06:52 AM   #2315
sychan is offline sychan
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Location: SF Bay Area
Quote:
Originally Posted by cdsgames View Post
For the AMP I hope that next week I can show some pics. AMP and buffer (preamp) is final . PSU is working but I need to incorporate the changes/mods into new PCB . Not a big deal
@cdsgames I hope you've stayed healthy during the delta surge! Any news on the new amps final performance? I recognize that it may be some time before you can start production.
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Old 10th November 2021, 10:00 PM   #2316
chris14 is offline chris14
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Picked up on this thread at ASR today,
Amplifier SINAD list ASR + 3rd parties | Page 9 | Audio Science Review (ASR) Forum
It would be good to confirm the numbers for the new Allo amp - any progress @cdsgames ?
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Old Yesterday, 04:19 PM   #2317
chris14 is offline chris14
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Just found internal pictures of new Topping PA5 amplifier....
Topping PA5 Review (Amplifier) | Page 51 | Audio Science Review (ASR) Forum

Looks as if it might be TPA3255 based? If so the Allo dual mono should be able to exceed the performance of the PA5. From published specs it is exceptionally good, near Benchmark AHB2 performance, however gain is low and it is designed for balanced output from a DAC such as their E50. @cdsgames any updates on your amp?
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Old Yesterday, 04:58 PM   #2318
chris14 is offline chris14
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Looks like the posts have been removed, so internal pictures are gone!
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Old Yesterday, 05:40 PM   #2319
chris14 is offline chris14
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Looks like the posts have been removed, so internal pictures are gone from ASR, but can be seen here
Update your browser to use Google Drive, Docs, Sheets, Sites, Slides, and Forms - Google Drive Help
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Old Yesterday, 05:50 PM   #2320
Markw4 is online now Markw4  United States
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PA5 appears to use ferrite output inductors. The very thing Bruno Putzeys warned about:
This Thing We Have About Hysteresis Distortion - PURIFI

Tends to look like noise on an FFT, but it doesn't *sound* like white noise...
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