cdc

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$100-200 linear power supply
From the same review:   What is less good are the spikes overlaying the waveform at the signal’s zero-crossing points, which imply inadequate standing bias current in the Gaincard’s output stage. When RD writes about "a hardness or glare in the... 
$100-200 linear power supply
This is why: the 4706 Gaincard offered excellent measured performance. In fact, almost all the measured problems I encountered can be laid at the feet of the Humpty power supply.  
Wall wart removal...why no products that can handle multiple devices?
Pro-Ject Power Box MaiA DS2   Output voltage / current (socket diameter): 2 x 9V / 2A max (1,3mm) 3 x 18V / 1A max (2.5mm) 1 x 15V / DC-turntable (2.1mm)  
What About LiFePO4 Batteries and Pure Sine Wave Inverters?
I’m up and running on battery. Does your system sound as good in the day as night? There has been a lot of conjecture why stereos sound better at night than day. Battery could eliminate one variable.  
FAKE NEWS - NEGATIVE REVIEWS NOT ALLOWED!!
A.S.R. is plenty negative.  
Qualities Of An End-game System
@mrdecibel  Thanks for the reminder. One kick-ass song.  
Are You A Disciplined Audiophile?
Comparison auditioning - buy 2-3 products representative of various designs and compare them at the same time - is more effective IMHO. The only "break" that I take is to wait a week or two and come back to it with fresh ears and see if it sounds... 
What's in your CDP tonight? the minority report
                            1:55 / 4:28           胡彦斌 蝴蝶  
eBay
Your state's DRS (Department of Revenue Services) may have something to say about this. They regulate sales tax among other things.  
$100-200 linear power supply
@akg_ca I don’t see the merit in an approach of a new LPS at equal to or double the MSRP price of the amp unit itself. I’d put the $200 toward the cost of a better amp first. Because from my admittedly one-sided and purely subjective listenin... 
$100-200 linear power supply
Put a thin  plate of shungite with a copper tape  on the Fosi   There are five types of shungite rocks, categorized by their carbon content: Shungite-1 (noble elite shungite): 90%-98% carbon; this has the metallic sheen. Shungi... 
$100-200 linear power supply
In your case that's 24 volts and 4.5 amps. That is a good point.  
Qualities Of An End-game System
@wolf_garcia There is no "end game" required in anything connected to music enjoyment or any art form except in your head. +1  
eBay
OP, have you talked to eBay?  
External Linear Power Supplies
@jerrybj  The one review I had found that used a separate power supply for a Pro-Ject Stream Box S2 Ultra streamer observed no improvement. I reread that review a long time later, and they used the Project Battery power supply. So you are sayi...