power conditioner

[Kingrex]

I see them as the benchmark. If you can beat one with something else you're doing very, very well!

Sounds like I need one to measure against.

 

[Kingrex]

FWIW.
48 volt 105AH battery - $3000 shipped
Charger $525
Inverter Exeltech XP2000 - $2000
Complete wiring harness with fused protection $1500
Torus RM20 - $4200, shipping $400 aprox.

Victron 3000 watt inverter approx $1150. Use this in place of the Exeltech.

 

[microstrip]

Sounds like I need one to measure against.

What would you exactly measure?

 

[Atmasphere]

What would you exactly measure?

Stability of the AC line Voltage and distortion of the AC waveform while under load.

 

[Kingrex]

Stability of the AC line Voltage and distortion of the AC waveform while under load.

As well as harmonic noise, max current delivery. I would love to get a spectrograph and look at the fundimental as well as harmonics from the inverter. They seem to be about $2500 for a basic one.

Measurements also include listening. Taking it to other locations and comparing to other power supplies at other homes. I have 2 reviewers, and 3 other serious audiophile local, with quality systems to listen at. Problem is, most people would rather spend $50,000 for a Stromtank. If they have the $15,000 to get one built up, they have the big money.

And for the most part, if you have a big system, I still really like using utility power properly. Maybe a few point source filters. Or a large wall mount. Amir is an anomaly with the issues he is having. But come on. Hes in Iran. Who knows whats gping on with electrical infrastructure there. My perception is, the biggest danger to audiophiles is the current climate of electrify everything. The electrical grids are straining and Brown outs are all to often. A Brown out or drop in voltage to say 90 volts or less is the real danger for a stereo.

 

[Atmasphere]

As well as harmonic noise, max current delivery.

'Harmonic noise' is the distortion I mentioned. 'Max current delivery' is how well the unit holds up and is able to maintain the output Voltage while under load.

If it does those things right, a unit that doesn't do as well simply isn't as good plain and simple. If an amplifier only sounds right when its fed a distorted AC waveform, something is wrong with it.

Our MA-3 amp was expected to load home electrical systems pretty heavily, is it is a 500 Watt triode class A OTL. Because AC power was likely to fluctuate with its use, the unit was designed with an internal AC power regulator in the power supply. The line Voltage could fall to 95 Volts and it would still make full power. Its not crazy hard to make such a device. If you're concerned about brown outs it would be the sort of thing you put upstream from the conditioner.

 

[microstrip]

As well as harmonic noise, max current delivery. I would love to get a spectrograph and look at the fundimental as well as harmonics from the inverter. They seem to be about $2500 for a basic one.

I have told you how to get a top one almost for free ...

Measurements also include listening. Taking it to other locations and comparing to other power supplies at other homes. I have 2 reviewers, and 3 other serious audiophile local, with quality systems to listen at. Problem is, most people would rather spend $50,000 for a Stromtank. If they have the $15,000 to get one built up, they have the big money.

IMO absolutely irrelevant, unless done in very strict and controlled conditions, that need a lot of time and serious work. I would not expect reviewers and local friends to be good partners for such job. In order to be considered a measurement listening needs independent valid statistics.

And for the most part, if you have a big system, I still really like using utility power properly. Maybe a few point source filters. Or a large wall mount. Amir is an anomaly with the issues he is having. But come on. Hes in Iran. Who knows whats gping on with electrical infrastructure there. My perception is, the biggest danger to audiophiles is the current climate of electrify everything. The electrical grids are straining and Brown outs are all to often. A Brown out or drop in voltage to say 90 volts or less is the real danger for a stereo.

 

[Kingrex]

I have told you how to get a top one almost for free ...



IMO absolutely irrelevant, unless done in very strict and controlled conditions, that need a lot of time and serious work. I would not expect reviewers and local friends to be good partners for such job. In order to be considered a measurement listening needs independent valid statistics.

Remind me how to get a one for not a lot?

I am confident the people I know, as well as myself, when hearing a change, understand what happened and are able to decipher if is better or just different. And outside that, I am not going to support or follow through with something if I don't hear a positve change myself. AND have that validated by others. Sorry, but I am not one of those, Science only people.

 

[Amir]

The Exeltech inverters produce less than 1% thd. Whether the difference is necessarily audible, I don’t know.

And wouldn’t you want a modern LiFEPO battery over a lead acid design?

I do not know but Kevin uses lead acid battery

 

[Amir]

Ralph, I have a question about Audioquest niagara 5000, they use capacitor for increasing transient current to load (they claim 90A), Do you know about the schematic circuit of these capacitors?


Niagara website : “

• Niagara Transient Power Correction: Transient Power Correction: Provides over 90 amps peak instantaneous current reservoir with reduced line impedance for current-starved power amplifiers, whether they incorporate linear or switching power supplies.”