Jump to content
Computer Audiophile
Superdad

UltraCap™ LPS-1 Operation and Pre-purchase thread

Rate this topic

Recommended Posts

mentt   
Hard to say. While the back panel rating on the DAC says 2 amps, it probably actually draws much less. The question is, does it draw less than the LPS-1's 1.1A max? Impossible to know without trying or measuring one.

 

Ok, thank you for reply

 

what about UpTone Audio DAC as a new product :-) what do you say?

Share this post


Link to post
Share on other sites
R1200CL   
Yes, lps-1 powering the dac

yes, USB as DAC will be used with microRendu

 

There exist a Excel overview over almost all DAC's that I can't remember who is maintain.

I think the purpose was to list which one support dsd. You may try to search or maybe someone can link to this spreadsheet.

 

You can then search up every DAC listed, and check it's power requirements. Maybe even add your findings to that list.

 

Edit:

Maybe this one:

https://docs.google.com/spreadsheet/ccc?ukey=0AgVhKcl_3lHfdFVyenBBNjNpQ2lieG81WGpqQTNfVUE#gid=0

 

Also a searc lead me here:

http://www.pinkfishmedia.net/forum/showthread.php?t=136773

Edited by R1200CL

Share this post


Link to post
Share on other sites
R1200CL   
What about this dac Musical Fidelity | MX-DAC DAC

 

can it be used with lps-1?

 

5v/2a Dc

 

http://www.musicalfidelity.com/uploads/catalogerfiles/mx-dac/4_MX-DAC_manual_issue_1.pdf

 

Page 6 state less than 1 watt at max. Standby less than 0,25 W.

 

So 5V x 2A = 10W, and it uses less than 10% of what's available.

 

I expect you can make the conclusion yourself:)

(If my math is done right).

Share this post


Link to post
Share on other sites
Superdad   
http://www.musicalfidelity.com/uploads/catalogerfiles/mx-dac/4_MX-DAC_manual_issue_1.pdf

 

Page 6 state less than 1 watt at max. Standby less than 0,25 W.

 

So 5V x 2A = 10W, and it uses less than 10% of what's available.

 

I expect you can make the conclusion yourself:)

(If my math is done right).

 

While I do suspect that the LPS-1 may be fine for the Musical Fidelity MX-DAC, that power consumption spec is for AC consumption by whatever PS is included with the DAC. Does not directly correlate to DC current draw.

Share this post


Link to post
Share on other sites
lxgreen   

Not sure which thread this belongs in but I'll start here. Also, sorry if covered already. I'm using Schiit Yggy fed by Microrendu powered by new lps-1. The Microrendu is connected to Ethernet cable to TPLink optical isolators. Content comes from tidal or NAS files using roon core on sonicorbitor controlled by iPad. Michael Lavorgna in Audiostream column powers the TPLink closest to Microrendu with an IFi microUSB3. Can someone tell me if this provides any additional benefit over that which I am already getting from the Uptone LPS-1?

Share this post


Link to post
Share on other sites
R1200CL   
Not sure which thread this belongs in but I'll start here. Also, sorry if covered already. I'm using Schiit Yggy fed by Microrendu powered by new lps-1. The Microrendu is connected to Ethernet cable to TPLink optical isolators. Content comes from tidal or NAS files using roon core on sonicorbitor controlled by iPad. Michael Lavorgna in Audiostream column powers the TPLink closest to Microrendu with an IFi microUSB3. Can someone tell me if this provides any additional benefit over that which I am already getting from the Uptone LPS-1?

 

Why not let the LPS-1 also power your FMC ? (Assuming you use the 10/100 version) If you draw to much power, the LPS-1 will have a red light.

 

Yes, most of us think clean DC power to the FMC benefits the SQ. Also you may remove any of these loops JS has explained many times.

 

So just use a Y split and listen for your self and find out what's happening.

Share this post


Link to post
Share on other sites
Confused   

My LPS-1 should be in the 'no later than November 18th' batch, only one short week away. I was just curious if things are running more or less to schedule? (From my time in industry I know how those pesky 'emergent unforeseen issues' can sneak up and bite you!)

Share this post


Link to post
Share on other sites
R1200CL   
My LPS-1 should be in the 'no later than November 18th' batch, only one short week away. I was just curious if things are running more or less to schedule? (From my time in industry I know how those pesky 'emergent unforeseen issues' can sneak up and bite you!)

 

http://www.computeraudiophile.com/f27-uptone-audio-sponsored/ultracap%99-linear-power-supply-1-listening-impressions-thread-30172/index8.html#post601856

Share this post


Link to post
Share on other sites
MNG   

Hi,

 

My LPS-1 is on its way. I am currently using a MCRU LPS 7V DC to power my microRendu. When my LPS-1 arrives, can I use the MCRU unit to power it or will it be insufficient? It seems that I need 7.5V/2.5A, so just short. Will it do any harm if I try it anyway?

 

I have ordered the compatible energising supply but, given that the MCRU is already in situ, I would like to use it if I'm able.

Share this post


Link to post
Share on other sites
R1200CL   
Hi,

 

My LPS-1 is on its way. I am currently using a MCRU LPS 7V DC to power my microRendu. When my LPS-1 arrives, can I use the MCRU unit to power it or will it be insufficient? It seems that I need 7.5V/2.5A, so just short. Will it do any harm if I try it anyway?

 

I have ordered the compatible energising supply but, given that the MCRU is already in situ, I would like to use it if I'm able.

 

This one ?

http://www.mains-cables-r-us.co.uk/home/1379-regulated-linear-power-supply-for-uptone-audio-ultracap-lps-1.html

Share this post


Link to post
Share on other sites
MNG   
Very hard to find any technical info on that site. Strange. I suggest you email them. Maybe a reasonable upgrade can be done.

I was thinking of just that. Can it cause any harm if I try it anyway?

Share this post


Link to post
Share on other sites
Hi,

 

My LPS-1 is on its way. I am currently using a MCRU LPS 7V DC to power my microRendu. When my LPS-1 arrives, can I use the MCRU unit to power it or will it be insufficient? It seems that I need 7.5V/2.5A, so just short. Will it do any harm if I try it anyway?

 

I have ordered the compatible energising supply but, given that the MCRU is already in situ, I would like to use it if I'm able.

 

A 7V supply WILL work as the feeder for an LPS-1 as long as it has a very low output impedance. At 7V the LPS-1 will be taking close to 3A (somewhere around 2.9A), if at 2.9A the feeder drops very much from 7V it is not going to work. Even though 7V will work it has to be VERY well regulated and a short low resistance cable between the feeder and the LPS-1.

 

A kind of runaway feedback can happen. As the feeder voltage gets lower the LPS-1 input current goes up, which can cause the voltage to get lower, which causes the current to get higher ... This is more of a problem at lower voltages because the current is higher to begin with. As long as the feeder can handle the high currents with very little droop this will not happen.

 

You can find a hint about how well a given 7V supply will do by looking at it's current rating. If it says anything less than 3A, completely forget it. If it is right at 3A it should theoretically work, but most 3A supplies will have too much droop. If it is significantly over 3A, say 5A, it has a decent probability of working (it may still have too much droop).

 

All the above is why the official spec only goes down to 7.5V, lower voltages MAY work, but it takes an exceptional supply to do so.

 

John S.

Share this post


Link to post
Share on other sites
Superdad   
Hi everyone,

 

Anyone tried UltraCap LPS-1 with =

 

- SOTM PCIe USB card (tX-USBexp) ?

or

- SOTM new player (sMS-200) ?

 

Yes, there are LPS-1 owners who have powered their sMS-200 with it with excellent results. Separarately, we also know of people powering their PCIe USB cards with the LPS-1.

 

Maybe do some searches in the Listening Impressions thread (I'm typing on my phone right now or I'd find some to link to).

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×