Power amps into surge protector/Conditioner or DIRECT to wall? Final verdict?

Lowryder

the company is Core Power Technologies, but yes

@tweak1 , ok. There's Core Power and EquiCore. Both use balanced power I believe.

lowrider
same, same
Underwood HIFi bought the company about 6 months ago

@atdavid

I applaud that you’re actually doing research, but it is half-hearted and incomplete research, and you’re mistaken.

Please show me the US Trademark for series mode, or where any of the real series mode surge technology manufacturers use the trademark symbol after series mode.

There are two current patents that protect series mode technology. If you bothered to read through my posts here and the linked thread, you would see why you’re wrong.

MOVs are sacrificial devices, and the point of series mode surge technology is to be non-sacrificial surge protection.

sadano,

1) This is from the Ametek website, "To resolve the problem, he took on the challenge to reinvent the surge suppressor by developing a Series Mode® protection circuit " ... do you notice that ® after Series Mode, that is the trademark. That means, if you are Furman, you can’t use Series Mode to brand a product related to surge suppression if you don’t want to get sued. To violate the trade-mark, you just have to use that wording in your marketing materials or branding materials.


2) There are current patents that protect new variations of a series surge protection circuit. The original patents, from the 80s, have long expired. You cannot create new patents to protect old material. Half the circuitry in the Furman is essentially what is in the 80s patent. Anyone can use that technology at this point which was the SurgeX Series Mode protection (you can’t use the trademark nomenclature though).

Again, from the Ametek site, "In 2005, SurgeX upped the ante by introducing Advanced Series Mode® (ASM) surge elimination technology. ASM improved on the original technology by incorporating a reactor with two opposing air core inductors to slow surge current down to a trickle. " This is not the technology that Furman is using.


3) SurgeX’s series mode protection is non sacrificial, but it is not perfect. It relies on an inductor as a filter element to block the high speed surge waveform before dumping what is left into a capacitor. As you know, in audiophile circles, adding inductance in front of a power-amp is often frowned upon. It of course also has a limit to how big a surge it can take before the inductor saturates, the diodes blow, or the capacitor is degraded. Adding MOVs in front of this type of surge protector, especially big ones, can significantly increase how big a surge the combined device can handle. Using both, as Furman does, is a feature, not a design fault especially at a given cost point, and the Furman units are competitively priced.

4) I will accept that apology now ...

SurgeX Suit Triggers Furman Response

By AVNetwork Staff (Systems Contractor News) January 28, 2005 Business

• Furman Sound has responded to a complaint filed by New Frontier Electronics d/b/a SurgeX, rejecting its claims in U.S. Federal Court and filing a counter claim against New Frontier. New Frontier’s complaint is in part for promoting MOV-based power conditioning products as Series Mode products.
• SurgeX, citing the false advertising and promotion prong of Section 43(a) of the Lanham Act, is claiming that the Furman Series II line of products use MOVs (Metal Oxide Varistors) as the main surge suppression technology and that the promotion and marketing of these products as Series Mode is false, deceptive and/or misleading.
• Furman purports that the words in question, "series mode," refer to a common electrical configuration and are not owned by any individual or organization. Furman’s Series II line of products does employ this technology, said the company, however the technology in Series II units goes above and beyond typical series mode protection with a total package called SMP Plus.
• All SurgeX power conditioning products incorporate advanced technology, referred to as Series Mode, to mitigate surge and transient energy without the use of any diversionary or sacrificial components such as MOVs.
• Furman Sound...www.furmansound.com
• SurgeX...www.surgex.com