T
Truett
Audioholic Intern
Not concerned about using during power outage. But want to use something to protect the unit since it is a computer. What is recommended?
I would probably go the way of an UPS. The uninterruptible power supply will give you time to safely power down if power is interrupted, so not so much about running the device on battery back up, but keeping the system powered until you can deal with it properly.Not concerned about using during power outage. But want to use something to protect the unit since it is a computer. What is recommended?
I had heard that there are certain UPSs that are appropriate for AV that may be different from regular computer UPSs. What is recommended, and what size? Would amplifiers use one, too?I would probably go the way of an UPS. The uninterruptible power supply will give you time to safely power down if power is interrupted, so not so much about running the device on battery back up, but keeping the system powered until you can deal with it properly.
Surge protection isn’t really a thing that will prevent damage at the outlet. If you own your home, you may wish to consider whole-home surge protection which is installed at your service panel.
There is no such thing as audiophile surge protection or such. All the gear that markets itself toward that "crowd" is a gimmick, with some of the testing that's been done showing some such product actually limits voltage pass through to the devices plugged in to them!I had heard that there are certain UPSs that are appropriate for AV that may be different from regular computer UPSs. What is recommended, and what size? Would amplifiers use one, too?
I use standard computer APC UPS units of the correct power. Remember VA is not watts for an AC circuit, only a DC circuit. Do not connect power amps to UPS units.I had heard that there are certain UPSs that are appropriate for AV that may be different from regular computer UPSs. What is recommended, and what size? Would amplifiers use one, too?
Do you have a recommendation for whole house surge systems? And with a whole house system would I still need a UPS for the AV processor?I use standard computer APC UPS units of the correct power. Remember VA is not watts for an AC circuit, only a DC circuit. Do not connect power amps to UPS units.
For the phase angle of a home AC circuit 300 watts is 500 VA. So your UPS will be specked in VA, but your processor will be specked in watts. I would get a unit over specked by 25%. So if your unit draws 1200 watts for instance then you should get a 2,500 VA UPS.
One other thing, get whole house surge protection installed at entry to your residence. If you can't do it at entry, then do it at the panel. Do not use surge protector strips. Doing at entry gives you the best protection and protects everything in your house. This is now code in many places now, and should be everywhere. That is actually the most important item to protect your gear. Whole house protection saved me a boat load of trouble last summer with a direct hit.
The whole house surge protection will give you actual-better protection against power spikes and such. It will not prevent a computer processor from a sudden outage.Do you have a recommendation for whole house surge systems? And with a whole house system would I still need a UPS for the AV processor?
We definitely have lightning. South Louisiana. So I should consider a whole house surge protector, and a ups. Right? Any brand recommendations?The whole house surge protection will give you actual-better protection against power spikes and such. It will not prevent a computer processor from a sudden outage.
Two completely different issues.
If you don’t live somewhere with electrical storms and frequent lightning strikes but are subject to frequent outages, you could gamble on just the UPS.
For whole home surge protection, you need to get an electrician involved.
You have a very expensive piece of AV preamp processor, so I would suggest you install a whole home unit such as the Siemens (I think I posted a link earlier in the other thread where someone asked similar question), but I would also install one locally at the wall outlet. For the wall outlet one, there are numerous choices, you should contact Trinnov and ask for their recommendations. I understand Trinnov's customer support is excellent.We definitely have lightning. South Louisiana. So I should consider a whole house surge protector, and a ups. Right? Any brand recommendations?
You will need the electrician to install you whole house surge protection. He will know what best to install in your house, given the layout of the meter and panel. If your meter is outside, that is the entry point and the optimal location for the whole house surge protection.We definitely have lightning. South Louisiana. So I should consider a whole house surge protector, and a ups. Right? Any brand recommendations?
Depending on the local rules and regulations, if he is qualified to do the work, he may be able to do it in his own house, legally. FYI, in Canada, and our electrical code follow NFPA and NEC's closely, one used to be allowed to do such work as long as it is for one's own residential home, but that was years ago and one still has to take out a permit and have the finished job inspected by the ESA (or Hydro).You will need the electrician to install you whole house surge protection.
Lightning and the usual surges are two completely different problems.We definitely have lightning. South Louisiana. So I should consider a whole house surge protector, and a ups. Right? Any brand recommendations?
UPS units also protect from over and under voltage, and also are fast enough for a lot of surges.Lightning and the usual surges are two completely different problems.
Yes, get the whole house protection but use local protection, too- surges (voltage spikes) can come from sources inside of the building, too. UPS is for maintaining operation during brief outages.
Maybe- some are purely UPS and used as an add-on for surge protection in units that do a better job with surges than a consumer grade device.UPS units also protect from over and under voltage, and also are fast enough for a lot of surges.
All my APC units do that. He needs to order smart UPS units from APC. They can and do, shave high voltage and boost low. That is an essential part of the engineering and specification of a high end installation.Maybe- some are purely UPS and used as an add-on for surge protection in units that do a better job with surges than a consumer grade device.
Who told you that load of cod's wallop?For audio use, you need to check a few things on a UPS
- It needs to be a pure sine wave UPS - ie: one that puts out a clean sine wave AC output
- It needs to be Quiet (lots of UPS' have loud fans!)
- Double conversion - that is to say, it converts to DC, and then back to AC, even when on mains power - thereby ensuring that any issues on the powerline are "left behind"
- Capacity.... measured in VA (roughly speaking VA=80% Watts ) depends on your power amp draw... calculating this is complicated, and the label on the components often not meaningful! Different manufacturers calculate their power draw differently, a typical approach is 1/8th of max power draw, but there is no fixed standard - possibly a better way would be to get a power draw measurement tool, and drive your setup as hard as possible - then provide a reasonable margin above and beyond whatever it was drawing.