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Shanti Dual LPS 5V/3A , 5V/1.5A
Shanti Dual LPS 5V/3A , 5V/1.5A
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Old 11th August 2020, 12:04 PM   #1771
cdsgames is offline cdsgames  Canada
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Join Date: Jun 2015
We have the specs from our own AP machine but if course its not as good as AP of Amir. A better machine usually shows a lower noise floor. We are showing -114.7 to -115.2 depending on filters , sync/async , channels .

I will ask Amir again if he can find the time.

Last edited by Variac; 12th August 2020 at 03:44 PM.
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Old 11th August 2020, 12:09 PM   #1772
uncola is offline uncola  United States
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I'm continuing to enjoy the rev dac. My ONE nitpick would be if you could reduce the popping between sample rates and when I skip ahead in spotify or youtube music videos
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Old 11th August 2020, 01:00 PM   #1773
cdsgames is offline cdsgames  Canada
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The pops betwen songs on sample rate is a known issue with many DACs ICs. Further , pops can changes depending on software used to play songs .

We will be studying more on how to improve but I don't expect to solve it entirely

Last edited by Variac; 12th August 2020 at 03:44 PM.
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Old 11th August 2020, 01:03 PM   #1774
uncola is offline uncola  United States
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it definitely happens more than my other dacs.. like when spotify switches between a song and an advertisement.. I wonder if their advertisements are lower bitrate to save money on bandwidth costs for them.. hmm
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Old 11th August 2020, 01:12 PM   #1775
cdsgames is offline cdsgames  Canada
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Most likely its a sample rate change . Did you try different settings (1 vs 5) on pop mute ?
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Old 11th August 2020, 01:15 PM   #1776
uncola is offline uncola  United States
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Hmm I just realized spotify uses directsound so it should all get resampled to 44.1KHz which is what I have windows set to use so it can't be sample rate change can it? I set pop mute to 5ms as soon as I plugged in the dac, never tried lower settings
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Old 12th August 2020, 10:28 AM   #1777
cdsgames is offline cdsgames  Canada
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Hi uncola

I am not sure about your setup but POP up sound from Dac ic happens on sample rate change. If you hear a pop up without sample rate change thats usually related to how software sends the data-stream. Try different setting of POP in the menu

Last edited by Variac; 12th August 2020 at 03:44 PM.
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Old 12th August 2020, 06:43 PM   #1778
Variac is offline Variac  Costa Rica
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Shanti Dual LPS 5V/3A , 5V/1.5A
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Old 16th August 2020, 05:42 AM   #1779
sychan is offline sychan
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Interestingly, Hans Beekhuyzen gave a glowing review of the PecanPi integrated streamer setup, claiming the PecanPi is the best DAC HAT available for the RPi, explicitly rating it higher than the Allo Boss in the comments. But he feels the Revolution is better than the PecanPi if both are USB connected - with the caveat that the PecanPi HAT is still better unless the Revolution is hooked up to a USBridge.
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Old 16th August 2020, 09:25 AM   #1780
cdsgames is offline cdsgames  Canada
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The latest review on Rev Dac part 1 Review | Allo Revolution DAC, Part 1 - Reviews - Audiophile Style
PecanPI is a very good DAC based on a TI ic thats well known to sound very good. PecanPi has XLR output vs RCA on Rev that usually improves sound quality . At last PecanPI is i2s vs USB on Rev . While i2s has an advantage on terms of sound quality (we don't know why exactly) it has a disadvantage in terms of sample rate . Rev is capable of DSD 512
Rev Dac with PI4 and a Nirvana plus normal SMPS will be cheaper then PecanPi while allowing a greater set of sound customization and sample rate .
Rev Dac with USBridge and Shanti LPS will be more expensive ,but it has better sound quality(according to Hans) while allowing you to upgrade in the future to a better Dac (while keeping the digital source and 5V power supply)

Last edited by cdsgames; 16th August 2020 at 09:46 AM.
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