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I bought a Krell Duo 300 amp and Krell says in the manual not to use any power cord than the one they supplied. Anyone know if there is any concern with using aftermarket power cords?
Follow Ups:
Some after market power cable swap active and neutral around to make them sound "better" different to the oringinal. Just so you go ooh aah and buy them.
Krell have been known sometimes to do strange power supplies and using a mains cable that is swaped "active and neutral" may be problematic.
Cheers George
If an audio manufacturer -- especially one with Krell's reputation -- makes a recommendation about use of its equipment that also will save you money, why would you not listen to them? I have a Krell FPB 300cx amp with a captive PC and never thought about modding it to accept another PC nor have I ever felt the need to.
Neal
Why would anyone buy krell when the founder of the company is not there anymore.
Does that apply to JBL? McIntosh? KLH? Wharfedale?
And a host of others which have changed ownership several times over the years?
Not buying a something because the originator of the company is a goner is not a very good reason for NOT buying something good.
Do you own a Tesla Automobile? That's one of the few car manufacturers left who is still involved with the product that bears their name.
Too much is never enough
"Do you own a Tesla Automobile? That's one of the few car manufacturers left who is still involved with the product that bears their name."
I don't think that Nicola Tesla is in any way involved with the car manufacturer that bears his name.
Mind you 'Musk Motors' wouldn't have much of a positive ring to it.
Still, I think it's great that Elon Musk decided to honor Nick Tesla by naming the vehicle company after him.
And Telsa didn't even have to pay for the naming rights! Take that, Staples Center, American Airlines Center, United Airlines Center, et al!
:)
DUH!
And right you are!
Would Tesla drive a Tesla? Who knows?
But my point was that most name companies that survive are no longer related to the founders or the name the founders gave them.
But I DO have an advert blurb for 'Musk Motors'. 'They go like Stink!'
Too much is never enough
Back when I had a Krell 500i the sound was improved by just the entry Transparent power cord. I think you are fine to use most any quality aftermarket power cord. Ideally, buy from a place that allows for a return if not happy. If you want your current to have a wide open highway the Clarus Crimson power amp cord is rated to pass 30 amps. Of course, that's more than can be sucked out of the wall, but, what's a little overkill. I'm sure there's a perfectly logical explanation though. I'm just having fun at their expense which I'm sure they shouldn't mind as I have one of those monsters feeding my Pass amp. The end result from what my ears heard it was worth it's cost.
What company management would, in their right mind, say "oh yeah, sure, other power cords might be just fine or even better. Go ahead".
Who doesn't get that?
On some older Krells they used IEC C20 inlets. On other higeher power Krell amps, they used heavy gauge captive power cords not only for safety but for a better connection, as do some other high powered amps.
Something to think about when buying an aftermarket cord for some large amps.... Which AC inlet type is used on the Krell Duo 300?
IEC C20 Inlet
More common IEC C14 Inlet
pic, 20A IEC. 15's suck. not enough contact surface in that a large gauge power cord can easily come loose, fall out etc. Physically the 15 is just not good enough. The 20 is.
ET
Good pic showing the IEC C20 inlet.
Yup. ARC also uses IEC C20 on some of their larger products as well.
Contact surface and solid tight connection at the AC inlet is much more important on high power components like large power amps for safety reasons. Poor connections at high current draw will cause heat and the potential for fire.
Many older large Krell amps used large gauge welded captive power cords for this reason, as do some other amps in production today.
Great pics guys. Audioquest, XLO, Kimber and Tara Labs can be used on Krell amps.
Roger roger, I agree. I think in the perfect scenario the 15A can easily handle the electrical load which is often just a few amps but I see far too many after market cords with weight and mass that either fit loose or easily come disconnected or both from the 15 that cannot from the 20.
ET
Possibly a warranty issue?
Grammar: The difference between feeling your nuts, and feeling you're nuts.
I'm running their Foundation processor and love it, and am interested in the Chorus 5200 at some point.
___
"If you are the owner of a new stereophonic system, this record will play with even more brilliant true-to-life fidelity. In short, you can purchase this record with no fear of its becoming obsolete in the future."
Call Krell and ask what power cord they use when building/testing/voicing
their equipment. Also, ask what interconnects they use. If they won't
tell you, or you think they're lying, maybe you shouldn't be buying their
equipment.
...certainly they will say they use their own power cords and Krell cables.
My electrician made me a couple power cords out of the same type Romex used in the house. Power sounds like it did in the wall. Very natural.
"My electrician made me a couple power cords out of the same type Romex used in the house. Power sounds like it did in the wall. Very natural."
That's an interesting idea. Other than the short glitch from the outlet it should have basically the same surge impedance as the stuff in the wall which might simplify the RF resonances.
The price is right...
Rick
Which is what?
Unadulterated electricity not conditioned by any power cord. The current is flowing in it's natural state from the breaker box to the power amplifier. :^)
...picking up RFI all along the way.
I have a Krell amp and it still has the original power cord that came with it. The amp sounds fine and I never thought to buy a new cord since it came with one.Waste not, want not
Edits: 09/25/14
A guy at Krell emailed me back and said yeah it's OK just from a reputable company like Nordost, Transparent etc.. They sell one optimized for the amp it's only 1900 bucks.
about 2 decades ago I sold a guy owning Krell some coned feet. He was so impressed he called Krell and asked why they didn't supply the feet. The company rep said that they don't always work, and left it at that. Two months later they came out with their feet.
When you pay as much for a Krell as they charge, admitting that an after market product can improve performance is like admitting that their design is flawed....
1900 bucks? Sarcasm I hope....
There are many in this hobby of ours that do not believe in after-market power cord(s).
There are some companies that put more meaning into that ("our products are fine tuned/optimized by ear with our $2 power cords") - which immediately raises a red flag. I don't think Krell is one of those.
Hey, Krell, I was using the power cord my buddy made but it caught fire and my house burned down so I'm suing you.
"We are all in God's hands... and God is a malign thug."
-Mark Twain
"Anyone know if there is any concern with using aftermarket power cords?"
Yes. It's called "corporate liability".
Any corporate legal department worth their salaries would agree.
:)
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