Simply random stuff

[mandrix]

Speaking of electrical-tricity. I'm still contemplating running a separate 20 amp line to the audio room. the distance from the breaker box is maybe 10 ft and I figured to run it under the house and up through the wall to a single outlet. A little conduit and a little wire and crawling in the dirt. lol.
That would take my audio gear off a circuit shared with another room in the house and in my mind (such as it is) would be a good thing.
I need to get up under to run some new CAT cable anyways...

 

[barfle]

Speaking of electrical-tricity. I'm still contemplating running a separate 20 amp line to the audio room. the distance from the breaker box is maybe 10 ft and I figured to run it under the house and up through the wall to a single outlet. A little conduit and a little wire and crawling in the dirt. lol.
That would take my audio gear off a circuit shared with another room in the house and in my mind (such as it is) would be a good thing.
I need to get up under to run some new CAT cable anyways...

When we bought our house, we had the kitchen remodeled before we moved in. Our apartment lease still had three months on it, so there was plenty of time. One thing I added on to the project was getting two 20A lines on the same leg run into the bonus room, where I had planned on building my media room. I didn’t really know where I wanted the outlets, but I figured on one line for the “rack” and one line for the “stage” (where I have three studio monitors for the front channels). Each line has two duplex outlets, and that didn’t turn out to be enough. I still needed outlet strips for the lower-powered devices.

You will never regret having too much power for your sustem.

 

[Sonik Wiz]

When we bought our house, we had the kitchen remodeled before we moved in. Our apartment lease still had three months on it, so there was plenty of time. One thing I added on to the project was getting two 20A lines on the same leg run into the bonus room, where I had planned on building my media room. I didn’t really know where I wanted the outlets, but I figured on one line for the “rack” and one line for the “stage” (where I have three studio monitors for the front channels). Each line has two duplex outlets, and that didn’t turn out to be enough. I still needed outlet strips for the lower-powered devices.

You will never regret having too much power for your sustem.

I must agree with you. Having a good power infrastructure is essential to a high performance audio video set up. Just like optimizing room acoustics each solution is unique.

When we had a room added on many years ago, I asked the builder to tap off the mains 240V line into a fuse box. Yes, fuse box. So I can choose fast blow or slow blow. One side of the 240 went to 2 fuses, and the other side went to 2 fuses. My thinking was one side would go to my 3 Adcom 555 power amps & the other side would go to all the misc line level devices I have.

The line level power supply went to a junction box that 2 Isobar Tripp Lite filter boxes were hardwired into. The side that went to the power amps had their own DIY power filter set up. I used 2, 12" ferrite core rods wound with 12 GA wire and caps in & out to filter both common mode & differential noise.

The other two fuses went to my projector & PC.

It's worked out well. It would drive me crazy to move into an apartment or condo where you just plug stuff in. Meanwhile if I so much as run the toaster & microwave in the kitchen at the same time I I blow a circuit breaker.

 

[ar surround]

Meanwhile if I so much as run the toaster & microwave in the kitchen at the same time I I blow a circuit breaker.

Glad to hear that you have your priorities straight, Scott.

 

[Bill B]

Glad to hear that you have your priorities straight, Scott.

We don't need no stinkin' toaster.

 

[cbmmm3]

When we bought our house, we had the kitchen remodeled before we moved in. Our apartment lease still had three months on it, so there was plenty of time. One thing I added on to the project was getting two 20A lines on the same leg run into the bonus room, where I had planned on building my media room. I didn’t really know where I wanted the outlets, but I figured on one line for the “rack” and one line for the “stage” (where I have three studio monitors for the front channels). Each line has two duplex outlets, and that didn’t turn out to be enough. I still needed outlet strips for the lower-powered devices.

You will never regret having too much power for your sustem.

with the in-procees Atmos barn Im building I have the ability to configure my power set up. I have 3 dedicated 20 amp circuits going in. Actually 4 dedicateds now that I think about it

When I told the power company I wanted 400 AMP service at my address, they were like 'what' ??? They didnt like it when I told em it was for my cannabis growing operation........I was kidding them. They did not take the bait. But - yes - I did get my 400 AMP service. Not hooked up yet. Late this month

I always say, there is no replacement for displacement

 

[JediJoker]

We don't need no stinkin' toaster.

Toasters? TOASTERS?!

 

[Sonik Wiz]

with the in-procees Atmos barn Im building I have the ability to configure my power set up. I have 3 dedicated 20 amp circuits going in. Actually 4 dedicateds now that I think about it

When I told the power company I wanted 400 AMP service at my address, they were like 'what' ??? They didnt like it when I told em it was for my cannabis growing operation........I was kidding them. They did not take the bait. But - yes - I did get my 400 AMP service. Not hooked up yet. Late this month

I always say, there is no replacement for displacement

On the Japan Today website I read that the latest status symbol for (very) well heeled Japanese audiophiles is to have their own personal dedicated pole step down transformer. In the examples sited most went to the entire residence but also a couple of estates had that set up dedicated to just the home theater.

Now as rural as your location seems to be, I guess you will have that by default!!

 

[GOS]

holy shit Gene ! Glad to hear you and fam - and house - are okay. Is that the tornado siren wailing in the video ?

Sure was.

 

[cbmmm3]

Sure was.

yikes. scary, dude !!

 

[barfle]

The line level power supply went to a junction box that 2 Isobar Tripp Lite filter boxes were hardwired into. The side that went to the power amps had their own DIY power filter set up. I used 2, 12" ferrite core rods wound with 12 GA wire and caps in & out to filter both common mode & differential noise.

I don’t have any noise filtering in my power lines, and I don’t believe it’s causing any problems. The neighborhood power transformer is in my front yard, maybe 15’ (5M) from my breaker box, and the breaker box is even closer to the room. I think it’s pretty robust, although the existing 15A circuit serving the room had popped a couple of times, either from the vacuum cleaner or the laser printer (at least those were what started up when the breaker popped).

 

[mandrix]

Sometimes the more "stuff" you introduce into a circuit is more prone to introduce problems.
Most electronics AFAIK convert AC to DC anyway. If you're getting some weird harmonics you might want to go a step further.

 

[Sonik Wiz]

Sometimes the more "stuff" you introduce into a circuit is more prone to introduce problems.
Most electronics AFAIK convert AC to DC anyway. If you're getting some weird harmonics you might want to go a step further.

You mean get a harmonica filter?
I'd like to figure out how to filter out bag pipes. That's what plagues my system.

And yes you are right.

 

[GOS]

duplicate

 

[GOS]

A nice late afternoon Father’s Day weekend get together. From left to right. My father in law, myself, my brother in law and my oldest son.

View attachment 106576

 

[mandrix]

A nice late afternoon Father’s Day weekend get together. From left to right. My father in law, myself, my brother in law and my oldest son.

View attachment 106576

Picture disappear?

 

[Clint Eastwood]

Picture disappear?

yep

 

[barfle]

Sometimes the more "stuff" you introduce into a circuit is more prone to introduce problems.
Most electronics AFAIK convert AC to DC anyway. If you're getting some weird harmonics you might want to go a step further.

Most electronic gear worth having has a pretty good AC/DC converter (power supply). There are applications where power supply noise isn’t important (motors, lights, heating elements) but audio and video gear is pretty sensitive and the power supply isn’t just an afterthought.

While I was learning my craft, I built a power supply for an engineer that had three widely different value capacitors as filters. The smaller caps were tiny even compared to the tolerance of the aluminum electrolytics. I was pretty sure they weren’t there just to achieve some precise value of capacitance, so I asked the engineer why the smaller caps were there, and he explained that aluminum electrlytic caps weren’t very good at high frequencies because they were built by rolling up a piece of foil (and a wet piece of paper), making a coil that had inductance that became a significant factor at high frequencies.

Those high frequencies could well be audible in a sensitive circuit. But this has been known for well over 50 years, because that’s when I learned it.

 

[mandrix]

Most electronic gear worth having has a pretty good AC/DC converter (power supply). There are applications where power supply noise isn’t important (motors, lights, heating elements) but audio and video gear is pretty sensitive and the power supply isn’t just an afterthought.

While I was learning my craft, I built a power supply for an engineer that had three widely different value capacitors as filters. The smaller caps were tiny even compared to the tolerance of the aluminum electrolytics. I was pretty sure they weren’t there just to achieve some precise value of capacitance, so I asked the engineer why the smaller caps were there, and he explained that aluminum electrlytic caps weren’t very good at high frequencies because they were built by rolling up a piece of foil (and a wet piece of paper), making a coil that had inductance that became a significant factor at high frequencies.

Those high frequencies could well be audible in a sensitive circuit. But this has been known for well over 50 years, because that’s when I learned it.

You may have a different, and valid, opinion on this.
Power from the electric company here when unavailable, due to often frequent bad storms, hurricanes etc, I've been without power for a week at a time, and 2 or 3 days many times.
I used to fret about running the tv, pc's etc off generator power. At worst case it's square wave, best case often stepped and not true sine wave. (no clue what mine does) But I would think since the electronics are converting to DC anyway, there should usually not be a problem. I know modern pc power supplies are pretty robust in design, and I have platinum rated SeaSonic power supplies in the computers.
I'm not really sure if the generator can introduce any sort of harmonics into the signal.

What's your take?

 

[ar surround]

You may have a different, and valid, opinion on this.
Power from the electric company here when unavailable, due to often frequent bad storms, hurricanes etc, I've been without power for a week at a time, and 2 or 3 days many times.
I used to fret about running the tv, pc's etc off generator power. At worst case it's square wave, best case often stepped and not true sine wave. (no clue what mine does) But I would think since the electronics are converting to DC anyway, there should usually not be a problem. I know modern pc power supplies are pretty robust in design, and I have platinum rated SeaSonic power supplies in the computers.
I'm not really sure if the generator can introduce any sort of harmonics into the signal.

What's your take?

Unless your generator has an inverter you are playing with fire if you feed electronics. The inverter will give you nice clean AC output. The generators without inverters do not.

I have a portable Honda 2000 va unit where the inverter portion tripled the cost of the generator.