Furman on speakers

DJ Ricky B

DJ Extraordinaire
Mar 9, 2015
3,901
37
well, I for one would never think it would get rid of hum, and they do NOT advertise that whatsoever.

Not sure why anyone would even think such a thing.

Regarding "good surge protector," that is a different feature of this unit, and from what I have seen, most DJs using strip surge protectors are fooling themselves thinking it would even protect their equipment which I why I have never used one. A good surge protector is not cheap. There are many things that make a surge protector worth more than the basic one. Mainly, the amount of joules...
True...Something like this is legit in my book. https://www.amazon.com/APC-11-Outlet-Protector-SurgeArrest-P11U2/dp/B017VXU6GG/ref=sr_1_8?s=electronics&ie=UTF8&qid=1549083316&sr=1-8&keywords=Surge+Protector


https://www.amazon.com/HOLSEM-Outlets-Protector-Charging-Extension/dp/B01LYHEC16/ref=sr_1_10?s=electronics&ie=UTF8&qid=1549083316&sr=1-10&keywords=Surge+Protector&th=1
Or this one rated at 4,000 joules. This one looks nice, I might buy this one to replace the Monter unit I use now.
 

TES3S

DJ Extraordinaire
Sep 18, 2016
184
Los Angeles, CA
ya, go for it. If nothing else at all, at least the SMP protection is the Furman is going to beat out any MOV style protection found in most surge protectors.

Thing is, it is almost never going to be an issue unless lighting strike.
 

Handinon

DJ Extraordinaire
Oct 1, 2014
2,079
72
do you think Ben is full of it? He is part of the DJ community and I trust what he says. He is mainly stating that it is beneficial on mixers, mic receivers, dmx boards, accessories, etc. I am not sure if he even mentions laptops.
Of course not - but I do believe we often hear what we expect to hear. What I never see is "double-blind-testing" of these devices, or something as simple as putting an oscilloscope on a mixers output, and looking at the noise floor before/after using one. As I first said, there is probably some old electronics with conventional power supplies it might help, but I'm highly skeptical of newer devices with switching power supplies which, by design, must have their own filters. Also, I was just referring to laptops as an example which, unless your using it's earphone output, really don't have a "sound'. However, I'm looking at the one that's powering the laptop I'm typing with. It's input is rated 100-240 VAC, 50-60 HZ. That is a huge range.
 

Handinon

DJ Extraordinaire
Oct 1, 2014
2,079
72
The last piece is lightning protection.

I have personally seen lighting arc a distance of 1/2" from a secondary strike 6 houses away. This would have required a voltage of about 40,000 volts to do.
This is created by the huge, rapidly expanding and collapsing, magnetic field passing through all the associated wiring leading to the house, as well as the house wiring itself (Faraday's Law). This causes a huge voltage spike, and a lot of current to flow, in an extremely short period of time. This is a Secondary Strike, not a Primary Strike (direct hit).

IMHO, nothing protects from a Primary Strike, and even protection from a Secondary Strike is iffy. We get a lot of lightning here in Florida. Our electrical utility (FP&L) offers what is marketed as guaranteed "whole house lightning protection" - surge protectors installed where the electrical wiring enters your home, along with an additional monthly service charge added to your bill. IMHO, it is actually more a form of "insurance" - and still can never help with all the other ways lightning spikes can enter (phone lines, TV cable lines, copper plumbing, etc.).

IMHO, the best form of lightning protection is unplugging your equipment!
 
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ittigger

Hundred Acre Industry Icon
Feb 1, 2011
13,248
Western Maryland
The last piece is lightning protection.

I have personally seen lighting arc a distance of 1/2" from a secondary strike 6 houses away. This would have required a voltage of about 40,000 volts to do.
This is created by the huge, rapidly expanding and collapsing, magnetic field passing through all the associated wiring leading to the house, as well as the house wiring itself (Faraday's Law). This causes a huge voltage spike, and a lot of current to flow, in an extremely short period of time. This is a Secondary Strike, not a Primary Strike (direct hit).

IMHO, nothing protects from a Primary Strike, and even protection from a Secondary Strike is iffy. We get a lot of lightning here in Florida. Our electrical utility (FP&L) offers what is marketed as guaranteed "whole house lightning protection" - surge protectors installed where the electrical wiring enters your home, along with an additional monthly service charge added to your bill. IMHO, it is actually more a form of "insurance" - and still can never help with all the other ways lightning spikes can enter (phone lines, TV cable lines, copper plumbing, etc.).

IMHO, the best form of lightning protection is unplugging your equipment!
Agreed - and I'll add - electricity (including lightning) takes the path of least resistance to ground. Ensuring that grounding (and bonding) is done properly will help ALOT. Is it guaranteed to help? Nope. For homes, it's tough with all the wood. For homes and commercial structures that have metal beams running through them, those beams can (and should) be tied into the electrical ground to help balance and spread the ground potential. Internal grounding is useless without a physical earth ground connection.
 
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MIXMASTERMACHOM

DJ Extraordinaire
Oct 16, 2011
1,151
60
The big deal about Furman is protecting your gear. If there's a power surge or something accidentally gets disconnected, the Furman will save your gear from being damaged. I like using the Furmans we have instead of a cheap power strip.