I use a line conditioner because, during the summer months, my building's power circuits tend to be overtaxed and I get wildly variable power flow to my apartment.
If you have a stable and steady voltage supply, I would say that a line conditioner certainly doesn't hurt, but I am not of the camp that believes that a line conditioner can magically improve your sound or picture quality.
Like expensive cabling, this is of course a controversial matter with some people swearing up and down that spending lots of money on an accessory like this will radically improve your picture and sound. If you want to test it out, that's up to you.
Does a conditioner stabilize the power or do you need a voltage regulator for that? I'm confused on that issue and I do have some power issues in my c1900 house that causes my receiver to shut down sporadically.
Try the tweaks forum. One company that has had consistently good reviews is www.bpt.com. I got the BP 2.5 and it seems to make a difference. I do not have any big claims to make, but I do have the satisfaction that all the equipment is receiving good clean power. It is very difficult to prove or disprove anything in this area.
The problem with many UPS devices is that they will increase the inductance of the AC as seen by power amps and make it harder for the amps to draw the required current during musical transients, possibly resulting in transient distortion.
Isotek Corporation Qube power conditioner is *supposed* to combat this problem:
Also, be adviced that while RFI/EMI hash or harmonics in the input current may not be in the audible range of human hearing (and as such may appear to be unharmful), the audio playback chain is non-linear. Loudspeakers have been shown (measured and listened) to cause ultrasonic noise to interpolate down to audible frequencies and cause audible distortion (see Black's AES paper on Aliasing Intermodulation Distortion).
Of course the whole subject is more complicated than I present here and I don't claim to be an expert on the subject, but in my opinion power conditioning done right can audibly improve performance if the starting conditions are dismal enough.
I am not experienced in voltage conversions, but I would assume that 95 volts at higher amps can be converted to 120 volts at lower amps. This should be possible without battery power as long as there is enough wattage to power the device.
I have some of those TrippLite LC2400 line conditioners in use, and they don't exactly produce 120 volts from 87 volts. It's more like a set correction value is applied to the incoming signal: ie 87 volts becomes ~106, 140 becomes ~128. My biggest complaint is that these boxes correct voltages in the 112-115 range to 125 volts, which seems odd to me. I contacted a tech who confirmed that they were supposed to function that way claiming 125 was better than 115, even though all my equipment is rated for 110-120v. Oh well, no damage to report and they seem to work well on heavily loaded down circuits.
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