The importance of DC power

[LarryB]

[I posted this at HTT, but it's probably more appropriate here.)

From time to time, I (and others) have emphasized the importance of clean DC power to musicality, and the incredible efforts expended by high-end manufacturers in pursuit of this goal. The following is one reviewer's impression of a power upgrade to an Ayre preamplifier. I found it quite interesting and hope you do, too.

http://www.onhifi.com/product/ayre_k1x_followup.htm

Larry

[JonMarsh]

The X series upgrade to Ayre products encompasses a variety of modifications, including revision to the overall grounding system, and the addition of a power filter which improves common mode isolation. Additionally, there are some changes to the RFI suppression techniques used. DC power is part of the picture, but noise isolation from the power and signal ground is the overall thrust of that update.

Your point is well taken, because most systems and components, in comparison, pay little attention to these details. The Ayre preamps and amplifiers all use a fully balanced signal path input to outputs. They do have singlened inputs, but they feed balanced circuits which derive a ground reference at the component input.

Best regards,

Jon




Earth First!
_______________________________
We'll screw up the other planets later....

[Lex]

Yikes, nearly 500 bucks for a power supply. But I suppose the value of clean power at any level (ac or dc) cannot be discounted. I don't mean that literally, like 400 instead of 500. Rather, it's important to have good clean power, or what you process in the end, can be no better.

and your right Larry, that does belong in a dedicated 2 channel area.

Lex

[Bob]

Have you ever noticed that even the lowest grade car radio in the lowest grade rental car in the worst third world country gets perfect AM reception and the most expensive audiophile AM/FM tuner gets good FM but static filled AM? My understanding is that this is the difference between AC and DC power in audio.

[LarryB]

Jon:

Within the next few days I will get my D1 back with (1) the latest upgrades, and (2) Charlie's DACs. Can't wait to hear it.

Larry

P.S. I also got a new preamp, and will probably sell the Levinson 380.

[JonMarsh]

Larry,

I believe you're in for a real treat! :B It's certainly one of life's nice pleasures to get an expected and worthwhile upgrade to your system. I suspect you'll really enjoy this one.

Best regards,

Jon




Earth First!
_______________________________
We'll screw up the other planets later....