[Reactcore]

Could a battery like this work? But it only has 2 Amps ..

I know i get strange faces at home but one day i make my clean Dave power source.
I made a schematic for who wants to built one ahead

It needs 230VAC net voltage. For the ones on 110V a 1:2 step up transformer can be put in front, just use a double throw switch to disable it while in use (so no RF from it)

A flip switch sets it either on or charge.
The blue part is a low voltage protection circuit. Since i dont know Dave's behaviour when the voltage drops to much under 120v, the value of 'R' must be determined by trial.




The batteries can be this type:



I measured on my Dave, it draws 16 watts, about 125mA at 230V so on 144v it would be roughly 200mA
thats with using 2.8Ah batteries about 2,8/0,2 = 14 hours runtime on a full charge..

Yeah i know.. HMS and Dave should be placed more apart LOL

 

[Cortazar]

I am selling my silver m scaller + 2x 1m bnc cable from forzaaudioworks. Feel free to pm me. I am located in Europe.

 

[SteveHulk]

I know i get strange faces at home but one day i make my clean Dave power source.
I made a schematic for who wants to built one ahead

It needs 230VAC net voltage. For the ones on 110V a 1:2 step up transformer can be put in front, just use a double throw switch to disable it while in use (so no RF from it)

A flip switch sets it either on or charge.
The blue part is a low voltage protection circuit. Since i dont know Dave's behaviour when the voltage drops to much under 120v, the value of 'R' must be determined by trial.




The batteries can be this type:



I measured on my Dave, it draws 16 watts, about 125mA at 230V so on 144v it would be roughly 200mA
thats with using 2.8Ah batteries about 2,8/0,2 = 14 hours runtime on a full charge..



Yeah i know.. HMS and Dave should be placed more apart LOL

Interesting solution.

There are two questions I have:

1) It seems that the DAVE will go cold while the batteries are charging?

2) since the DAVE power supply is still in use will this solve the problems with demanding cans?

All power to you

 

[TheHifiBear]

I have a question for you gurus, especially for those having heard or owned a Farad Super3.

I have a Mscaler and use Wave Storms to my DAVE.
Lately, boredom and FOMO has pointed my vision towards a Farad Super3 for Mscaler.
I have always detested the look of the accompanying SMPS and it’s thin DC cable.
It just feels out of place compared to the rest of my setup.

So my questions are:
1. Does it improve SQ?
2. Rob Watts has said, on multiple occasions, that it will only introduce more noise to get a LPS. Especially since the Mscaler SMPS has some RF filtering specific for the Mscaler noise. So is this a red herring?
3. If I go down this rabbit hole, what DC connector does the Mscaler use, 2.1/5.5?
4. Should I order it with 12v or 15v?
5. What about all the upgrade options, any opinion on those?

Any help and advice is much appreciated.

 

[GhiAB]

I am using the FaradSuper 3 15 V with my Scaler and I prefer it's sound to that of the SMPS, regardless of what Mr Watts said. You will need a 5.5/2.5 DC connector with the Scaler. I would never go back to the SMPS. It is true however that I use a AQ Niagara 3000 power conditioner so that my help with with noise in the system.

 

[TheHifiBear]

I am using the FaradSuper 3 15 V with my Scaler and I prefer it's sound to that of the SMPS, regardless of what Mr Watts said. You will need a 5.5/2.5 DC connector with the Scaler. I would never go back to the SMPS. It is true however that I use a AQ Niagara 3000 power conditioner so that my help with with noise in the system.

Thank you for your opinion. And for the connector type, I can never find, or remember, the type.

I have my Mscaler connected to an Isotek Aquarius with only a Innuos PhoenixNET also connected to it. The rest is on a separate Cardas Nautilus powerbrick in the attempt to isolate the Mscaler as much as possible.

It’s a crazy noise box that Mscaler. I actually experienced a benefit moving it away from the DAVE.

Did you upgrade the DC cable, fuse etc. for your Super3?

 

[dac64]

Where did you get it from?And it seems to run only for a few hours?
If I am going to do it I need many hours running time, I am fed up with the one I bought with my Qutest which after years of use now runs out of power in less an hour now.

This will provide more than 10 hours of playtimes. You may add another 4xAAs to increase from 10 to 15 hours playtimes.

If you recharge it before you sleep, you will have 10 hours of playtimes next morning.

Btw, it will output ~5.4V at full charge.

This will be the last test case of my series of science experiments!

 

[Reactcore]

Interesting solution.

They are two questions I have:

1) It seems that the DAVE will go cold while the batteries are charging?

2) since the DAVE power supply is still in use will this solve the problems with demanding cans?

All power to you

Yes using this circuit the batteries are either on the charger or feeding Dave. So Dave will be cold while charging.

Though the switch can be wired differently to apply charging whilst keeping Dave powered.

The solution isolates Dave from net RF without tinkering with Dave itself.

Also HMS can be together on it but i recommend using a separate 12vdc battery for it to prevent RF from HMS PSU getting into Dave. It can be in the same box.

Dave's HP output power remains the same.
Harder to drive HP's require more voltage swing or current buffer on the output. The only way is to increase the voltage to the internal OP transistors which is 12v in Dave's design.

I am thinking to add super capacitors over this internal 12v rails.. just like its done in TT2.

 

[Reactcore]

This will provide more than 10 hours of playtimes. You may add another 4xAAs to increase from 10 to 15 hours playtimes.

If you recharge it before you sleep, you will have 10 hours of playtimes next morning.

Btw, it will output ~5.4V at full charge.

This will be the last test case of my series of science experiments!

You can also use one 6V lead acid battery with a 7805 regulator. This is a non oscilating component and so its clean but also ensures you a steady 5VDC.

This can give you days runtime between charges.

 

[dac64]

You can also use one 6V lead acid battery with a 7805 regulator. This is a non oscilating component and so its clean but also ensures you a steady 5VDC.

This can give you days runtime between charges.

Thanks for the tip. Will build one https://www.pinterest.com/pin/322359285839061066/

 

[GhiAB]

Thank you for your opinion. And for the connector type, I can never find, or remember, the type.

I have my Mscaler connected to an Isotek Aquarius with only a Innuos PhoenixNET also connected to it. The rest is on a separate Cardas Nautilus powerbrick in the attempt to isolate the Mscaler as much as possible.

It’s a crazy noise box that Mscaler. I actually experienced a benefit moving it away from the DAVE.

Did you upgrade the DC cable, fuse etc. for your Super3?

Yes, both the Furutech inlet and de SR Orange (at the time I purchased) fuse.

 

[GhiAB]

Yes, both the Furutech inlet and de SR Orange (at the time I purchased) fuse.

Level 2 Silver DC Cable

 

[dac64]

I strongly urge Rob to experience the below between HMS and Qutest/TT2/Dave to realise what has he created:

https://www.newark.com/c/connectors...apters?st=bnc+right+angle+adapter&pageSize=50

https://www.newark.com/c/connectors/rf-coaxial-connectors-accessories/rf-adapters?st=bnc straight adapter

And use these as references to evaluate current products and develop future products

Probably, includes these gadgets as part of the accessories of the HMS

 

[FlikFlac]

Excuse my ignorance, what do they do or how should they be used between HMS and TT2?

 

[dac64]

Excuse my ignorance, what do they do or how should they be used between HMS and TT2?

With two right angles and a straight, we are able to connect the HMS and Qutest/TT2. As for the Dave, might need more connectors, but it can be done.

Virtually, blind the two pieces into a piece.

The main reason is these connectors totally block the airborne RF.