Low Voltage on Circuit


Just tested the Voltage coming out of my wall and it was 112.7 V. This is obviously too low to feed my 120V tube monoblocs and my tubed pre amp. For about a week when I turned on my equipment it would shut off after about 30 seconds of play. I stumbled for a few days trying to isolate the problem but kept running in circles. I then took a trip to get a multimeter and tested the juice from the wall. Please let me know how to fix this, preferably with an inexpensive step up transformer or other solution that can be done DIY for under $100. My associated equipment all on the same circuit is:

Rogue Audio Magnum M120 Monoblocs (120Watts)
DIY pre amp using 2 6SN7 tubes
EAD Ultradisk 2000 CDP

buckingham
Hey Sean

I just bought the Tripp Lite LC 1800. It's a 15 amp voltage regulator/surge protector/noise remover. It should be here sometime next week. Hopefully it fixes my problems.
good luck and keep us posted. I'm sure that there are others in your situation. Some of them might not even know it : ) Sean
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HA HA HA... I'll have to break out the calculator for that one : ) While i can come up with a figure based on the factory ratings, who knows how accurate that is after some of the gear has been modified ? It's probably close enough to get in the ballpark though. I'll check and report back. Just don't call "Greenpeace" on me when i report the findings : ) Sean
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While looking at all of the components in that system, i found out that some of the custom pieces are not labeled for power draw. On some of the other stuff, such as the power supplies to run the various panels, i can't recall what was used. As such, i can't really come up with a grand total.

Since the amps are what draw the most juice, i figured that is what was most important. Some of these figures are based on calculations using the line voltage and fuse ratings on the individual amp. I had to do this since there was no total consumption figure listed on the chassis.

The two tweeter amps total 1600 watts of draw, the two mid amps total 2400 watts and the two woofer amps total 4800 watts. Add in the "whopping" FIVE watts ( !!! ) that my preamp draws and we come up with 8845 on just the backbone components. I'm sure that i would be well over 10,000 watts if everything would be factored in.

If you're wondering what "line level" components would add another 1200 watts of draw, i've got the electronic crossover, tuner, cassette, TT & vacuum pump, transport & dac and the four power supplies to run the mid and tweeter panels. As i've mentioned before, there is NO way to make this wiring nightmare look "pretty". The electrician that i had come in just kept shaking his head : ) Sean
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