amplifier power consumption


A moment ago, I did a cursory search online to determine approximately how much power, in watts, a typical lower-powered integrated (50-70wpc) draws from an outlet. Didn't find a proper answer. Was wondering if anyone here might happen to know off the top of their head...

I ask b/c i want to buy and use a UPS (uninterruptible power supply) to use for my integrated (Sugden A48b) and was wondering what kind of numbers i would need to adequately supply power to the sugden. There are models that supply 200w, 330w, 450w and i believe one at 540w...

POssible that anyone here knows offhand which would suffice for my amplifier?

I'm going to go surf for more info now... Thanks!
loose

Showing 2 responses by jea48

I may just try one of the cheaper units from APC for now (since i can always return it) and report back here as to how it worked out for me.
You may just damage your audio equipment......

Before you hook the cheapo UPS battery back up unit to your audio equipment I suggest you take it to your technician and have him do a bench test with a scope hooked up to the load side of it. Use a 150 watt light bulb for the load.

After everything is set up and the light is lit unplug the UPS from the wall AC power..... More than likely you will see the light flicker and get brighter for a split second. Then take a look at the sine wave on the scope..... That square wave could damage the power supply/s in your audio equipment.
To repeat Rog's response it should give the info on the back of the unit. Usually near the AC power inlet...

As Al said make sure the UPS puts out a true sine wave. SCRs will give you at best a 12 step wave (12 pulse). Cheapo Battery Back Up UPS a square wave, horrible for audio equipment.

The only true UPS units on the market today that I know of uses IGBT technology.
*Undistorted waveform (low harmonics)
*Fast switching speeds (100% step loads)
*No ripple DC (long battery life)

A True On Line UPS unit takes the AC incoming power and converts it to DC then converts it back to AC.

A True On Line UPS unit using IGBT technology cost quite a bit more $$ to buy than an SCR based unit.