...at what cost silence (i.e. reduced ripple)?

[davide256]

so to start, go here to keep tabs on the latest audiophile reviews

 

https://www.dailyaudiophile.com/

 

Allo is a relatively new company in India, essentially making the poor mans version of Sonore microRendu / SoTM SMS200. They can give outstanding performance as a streaming endpoint if a high quality power supply is used. So you can buy a USBridge for around $200, couple it with an LPS 1.2 or an SR4, and bide your time till ready to decide/spend serious cash on a better streamer. The nice thing about a quality DC power supply... it doesn't obsolesce whereas streamers, asynch USB converters and DAC's are in a perpetual arms race.  Last year saw the Ultra version for Sonore/ SoTM, perhaps this year we will see the Mega version? ?

 

Audio Bacon is an audiophile site that's been around and I've just recently started paying attention to it as they share some good stuff.

 

https://audiobacon.net/

 

The Paul Hynes power supplies have a strong fan base on CA that includes members with very good systems

 

[look&listen]

20 minutes ago, the_doc735 said:

how can these be used with audio PC's to replace a MPSU e.g. the connectors?

Requires DIY experience/aptitude & acquire some tech knowledge. No cookbook available.

1st step maybe learn all required voltages & currents for system. Then translate to LPSU needs.

[the_doc735]

1 hour ago, look&listen said:

Requires DIY experience/aptitude & acquire some tech knowledge. No cookbook available.

1st step maybe learn all required voltages & currents for system. Then translate to LPSU needs.

Great! ...many thanks! I think I'll be waiting until I can find someone who builds these power supplies! Any ideas? (LOL). Cheers!

 

...this is what I have:

 

 

[the_doc735]

1 hour ago, davide256 said:

so to start, go here to keep tabs on the latest audiophile reviews

 

https://www.dailyaudiophile.com/

 

Allo is a relatively new company in India, essentially making the poor mans version of Sonore microRendu / SoTM SMS200. They can give outstanding performance as a streaming endpoint if a high quality power supply is used. So you can buy a USBridge for around $200, couple it with an LPS 1.2 or an SR4, and bide your time till ready to decide/spend serious cash on a better streamer. The nice thing about a quality DC power supply... it doesn't obsolesce whereas streamers, asynch USB converters and DAC's are in a perpetual arms race.  Last year saw the Ultra version for Sonore/ SoTM, perhaps this year we will see the Mega version? ?

 

Audio Bacon is an audiophile site that's been around and I've just recently started paying attention to it as they share some good stuff.

 

https://audiobacon.net/

 

The Paul Hynes power supplies have a strong fan base on CA that includes members with very good systems

 

thanks very much for info provided. I don't use USB though! I use i2s.

[davide256]

9 minutes ago, the_doc735 said:

thanks very much for info provided. I don't use USB though! I use i2s.

uggh, more complicated. Metrum makes an i2s out Roon streamer endpoint ($1249), but that means you would need a Roon core subscription,

$115 annually/$499 lifetime. 

 

https://metrumacoustics.com/product/ambre-by-metrum-acoustics/

 

There's also this CA thread discussing i2s streamers.

 

 

[sandyk]

37 minutes ago, the_doc735 said:

Great! ...many thanks! I think I'll be waiting until I can find someone who builds these power supplies! Any ideas? (LOL). Cheers!

 

...this is what I have:

 

 

 

Have you any idea how large a 650W Linear PSU would need to be ?

 

[the_doc735]

19 minutes ago, davide256 said:

uggh, more complicated. Metrum makes an i2s out Roon streamer endpoint ($1249), but that means you would need a Roon core subscription,

$115 annually/$499 lifetime. 

 

https://metrumacoustics.com/product/ambre-by-metrum-acoustics/

 

There's also this CA thread discussing i2s streamers.

 

 

I'm using a i2s PCIe riser card inside my audio PC, it is connected to my LKS 004 DAC.

[the_doc735]

8 minutes ago, sandyk said:

 

Have you any idea how large a 650W Linear PSU would need to be ?

 

No! ...but I know the size of the HD Plex 400W LPSU

[sandyk]

2 minutes ago, the_doc735 said:

No! ...but I know the size of the HD Plex 400W LPSU

 

Putting it another way. 

Try finding room inside a PC to replace the existing SMPS with such a beast.

 Imagine the total weight too, with the extra heatsinks needed to dissipate all that additional heat when working hard.

[davide256]

2 minutes ago, the_doc735 said:

I'm using a i2s PCIe riser card inside my audio PC, it is connected to my LKS 004 DAC.

So not complicated, your DAC has coax and USB inputs also.

 

[the_doc735]

21 minutes ago, sandyk said:

 

Putting it another way. 

Try finding room inside a PC to replace the existing SMPS with such a beast.

 Imagine the total weight too, with the extra heatsinks needed to dissipate all that additional heat when working hard.

yes well, I probably don't need 650W anyway. I think the PC would run well enough with less wattage? I was thinking in terms of external power supply anyway, not attempting to fit it into my micro ATX case. There is no video intensive use, only music, but I don't know the minimum requirement of wattage for my mainboard & CPU + GPU? Cheers!

[the_doc735]

17 minutes ago, davide256 said:

So not complicated, your DAC has coax and USB inputs also.

 

yes, & AES, fibre optical.

[the_doc735]

I think the minimum power requirement maybe around 280 W?

 

...also: I need...

24 pin mainboard

8 pin CPU

4 pin molex (i2s card)

6 pin SATA (optical drive)

6 (+2)/8 pin PCIe (grx card power)

 

...maybe; https://www.hdplex.com/hdplex-400w-hi-fi-dc-atx-power-supply-16v-24v-wide-range-voltage-input.html +

https://smallformfactor.net/reviews/hdplex-ac-dc-160w-300w-powerful-solution and/or

https://www.hdplex.com/hdplex-160w-dc-atx-power-supply-16v-24v-wide-range-voltage-input.html

 

...its really confusing to figure out 'what goes with what'? (at a decent price)

[the_doc735]

how about this:

https://www.hdplex.com/hdplex-400w-hi-fi-dc-atx-power-supply-16v-24v-wide-range-voltage-input.html +

 

a TEDDY PARDO linear power supply?

 

the HDPLEX 400W Hi-Fi DC-ATX Power Supply is rated at 10mV ripple noise (max.) THE SAME AS MY current ATX PSU SEASONIC SMPS!!

...would the teddy LPSU considerably improve this figure?

https://www.teddypardo.com/powersupplies.html

[sandyk]

24 minutes ago, the_doc735 said:

...would the teddy LPSU considerably improve this figure?

https://www.teddypardo.com/powersupplies.html

 

You do realise that many of the PSUs on that page are only around 30W ?

[the_doc735]

29 minutes ago, sandyk said:

 

You do realise that many of the PSUs on that page are only around 30W ?

no I didn't, thanks!

 

where does it say that?

[sandyk]

41 minutes ago, the_doc735 said:

no I didn't, thanks!

 

where does it say that?

 Power = Voltage x Current

The top 2 on the page are 24W and 30W. The Naim Unitiserve is 54W. The Teddy USB is only rated at 10W.(5V @ 2Amps)

 Many of the others give only the voltages .  None of them appear to be high current supplies, although some have several voltage supply rails.

[4est]

10 hours ago, the_doc735 said:

thanks very much for info provided. I don't use USB though! I use i2s.

Straight off of a motherboard?

[davide256]

go here if you want an example of the technology it takes and the cost of a good "all-in-one" networked server/player. Unless your into machining chassis, isolation solutions,

custom MOBO's and building custom power supplies its a lot easier to get good results buying off the shelf high quality separate components. This is one of the few all-in-ones

I've heard that I'd consider instead of separates.

 

http://www.innuos.com/en/catalog/go/zenith-mk2-std

[Abtr]

20 hours ago, sandyk said:

Just because the Data sheets say that protection diodes are not needed, does NOT mean they shouldn't be used.

Okay, but with the LT1963 they are unnecessary.

 

Quote

In this suggested application, Ultra Fast transient response is not needed due to the numerous other smaller value capacitors used, and that the incoming +12V from the SMPS will already have acceptably low ripple

The main advantage that this PSU gives is the further improved isolation between the SSD and other areas via the +12V supply .

If the objective is output noise reduction, then according to the LT1963 datasheet 40uV is obtained with 10uF output capacitance; not 1000uF.

 

Quote

 If you want a further improvement in Input filtering when used for a +5V output with a 12V input you can also use my modified schematic, as A.C. input is not needed.  

The additional 100uF is readily mounted under the PCB and could be something like a 100uF Panasonic FC or FM.

 

In any event, several members have already used this voltage regulator to power an SSD and reported an improvement.

Does the 100uF Panasonic FM or FC significantly lower (decoupling/bypass) ESR?

[the_doc735]

13 hours ago, sandyk said:

 Power = Voltage x Current

The top 2 on the page are 24W and 30W. The Naim Unitiserve is 54W. The Teddy USB is only rated at 10W.(5V @ 2Amps)

 Many of the others give only the voltages .  None of them appear to be high current supplies, although some have several voltage supply rails.

ok

[the_doc735]

8 hours ago, 4est said:

Straight off of a motherboard?

no

[the_doc735]

3 hours ago, davide256 said:

go here if you want an example of the technology it takes and the cost of a good "all-in-one" networked server/player. Unless your into machining chassis, isolation solutions,

custom MOBO's and building custom power supplies its a lot easier to get good results buying off the shelf high quality separate components. This is one of the few all-in-ones

I've heard that I'd consider instead of separates.

 

http://www.innuos.com/en/catalog/go/zenith-mk2-std

errr! - £2299! - "No!"

[the_doc735]

1 hour ago, Abtr said:

Okay, but with the LT1963 they are unnecessary.

 

If the objective is output noise reduction, then according to the LT1963 datasheet 40uV is obtained with 10uF output capacitance; not 1000uF.

 

Does the 100uF Panasonic FM or FC significantly lower (decoupling/bypass) ESR?

[4est]

47 minutes ago, the_doc735 said:

no

Then how so? Most i2s sources start off as USB, and they really are no different than a USB DAC.