UPS Online vs Line Interactive for Home Theater

[Lamingtonator]

Hi Everyone

I have a Marantz SR6013 AV Receiver, and after about 5 years of blackouts and at least 1 brownout, it's started making some popping noises. These popping noises have been getting loader with each blackout, and it finally got out of hand last time, where it the pop was so load that the receiver switched itself off, and oddly enough hasn't really made any popping noises since.
Before I get it looked at/repaired I want to invest in a UPS stop this happening again.

I understand the differences of online and line interactive UPS's, but I was wondering as to whether the switching time of line interactive UPS's, of which I understand to be around 4ms, is enough to cause an issue in maintaining power of my Amp and other connected devices, or is it worth investing the extra money to get an online UPS?

The price difference is not insignificant, so I want to make sure that I don't invest in line interactive if its still going to give me problems.

Any help is much appreciated.

 

[TLS Guy]

Hi Everyone

I have a Marantz SR6013 AV Receiver, and after about 5 years of blackouts and at least 1 brownout, it's started making some popping noises. These popping noises have been getting loader with each blackout, and it finally got out of hand last time, where it the pop was so load that the receiver switched itself off, and oddly enough hasn't really made any popping noises since.
Before I get it looked at/repaired I want to invest in a UPS stop this happening again.

I understand the differences of online and line interactive UPS's, but I was wondering as to whether the switching time of line interactive UPS's, of which I understand to be around 4ms, is enough to cause an issue in maintaining power of my Amp and other connected devices, or is it worth investing the extra money to get an online UPS?

The price difference is not insignificant, so I want to make sure that I don't invest in line interactive if its still going to give me problems.

Any help is much appreciated.

Receivers contain power amps. It is not usually recommended to run power amps from UPS units, because of their fast changing current demands.

It is the delicate preamp and especially the delicate processing circuits that are vulnerable.

So for reliable design it is best to use an AVP and power amps. Protect everything except the power amps vis UPS, but not the power amps.

Also bring you home up to NEC. That means an OBD1 surge protector at the electrical service entry to your home, and an OBD2 at each electrical panel in the home and at the combiner if you have solar panels. That is National Electrical Code which must be done on all new construction or if you have any significant electrical work done in the home. Actually with climate change that is something that I strongly recommend to be done to all existing homes now. In my view all homeowners should be strongly advised to bring their homes up to current NEC in this regard.