[Victor_inox]

I just got butler475 or I would be buying yours. GLWS

 

[Victor_inox]

I saw that. nice looking amp.

do you check every ebay listing?

 

[Victor_inox]

I have certain things that I search every day. US AMPS is one.


Did you not get any buyer? if I had the money I would have jumped all over that one

saving searches or searching manually? I have a few searches saved myself, and then auto bidding software to win the auction. saved shidload of money over the years.

 

[Victor_inox]

There's also a few threads that "apparently" demonstrate how the Butler can still play music if you pull the tubes out...

Kelvin

find me one, would you?
As of finny sound.. yours probably was defective as mine bottoming out 100w 8 Ohm speakers with ease, I wouldn`t call it gutless nor tinny

 

[Victor_inox]

While doing some looking around I thought I read as part of their advertising that us amps stated their tube amps will not run without the tubes unlike some "fake" tube amps.

I saw a thread on here mentioning it also.

Search "us amps tube amps "

he was talking about butler running without tubes, not us amps, i searched for that found nothing but rave reviews of butlers.
I guess i`d pull tubes put tonight and test it myself, I highly doubt it will work without tubes, given how it takes 10 seconds to activate tubes warming up circuit and no sound coming out of it until then.

 

[Victor_inox]

OK cool

 

[Victor_inox]

butler audio located in 30 minutes drive from my house in Aurora,CO, I should probably just call them and ask, I `m not looking forward of unscrewing 14 screws to take tubes out.

 

[Victor_inox]

Took me 15mns but you're ready?

* tube taken out and amp still playing:
~thematt~ http://www.diymobileaudio.com/forum/technical-advanced-car-audio-discussion/44938-tube-ampilifiers-dont-ship-well.html
typericey http://www.diymobileaudio.com/forum/technical-advanced-car-audio-discussion/38441-anybody-familiar-us-amps-tube-amps.html
thehatedguy http://www.diymobileaudio.com/forum/technical-advanced-car-audio-discussion/16828-got-tubes-2.html
thehatedguy http://www.diymobileaudio.com/forum/system-design-help-me-choose-equipment-my-car/34125-can-someone-list-every-known-manufacturer-mobile-tube-amps-2.html

* tube not really doing much in the audio path:
DAT http://www.diymobileaudio.com/forum/hot-deals/68132-panasonic-double-din-tube-headunit.html
thehatedguy (again) http://www.diymobileaudio.com/forum/member-reviews-product-comparisons/12075-planet-audio-tube-hybrid-hvt754-w-cantons-etc.html

^ this is just on DIYMA - too lazy to search on other forums but when I first heard about the tube romoval thing, that was on caraudio forum I think... When I had the Butler, I wasn't on any forum yet. It's only after I sold it that I saw those kind of threads...
When I said gutless, I did not mean it does not put out rated power - but compared to the US Amps, it did not have as much headroom and the difference is not subtle even though both are rated for about the same power... Bottoming out a speaker doesn't say anything about power or guts

* US Amps not working if tubes removed:
killerb87 http://www.diymobileaudio.com/forum/system-design-help-me-choose-equipment-my-car/34125-can-someone-list-every-known-manufacturer-mobile-tube-amps-3.html

Kelvin

This is reply by the designer of the thing, IMO he has much more credibility that guy in first link you posted,he designed one of my favorite guitar pedals and he has tremendous respect in guitar players world. BTW I can find rave reviews of said amp on this very board.
A rumor spread by some ill-spirited and jealous PPI engineers perhaps. The amp has a fail safe circuit which will allow it to operate in solid state mode if the tubes fail. This adds to the confusion. Why would I risk 25 yrs reputation with pro musicians, etc and not have the tubes operational?? Makes no sense.

BK Butler

so if you read some more you`ll see that rubes works in diode mode, therefore can be disconnected without significant change in sound. that what I read, I havent pulled tubes out of mine- according to butlet it`s pointless because solid state circuit will be hot anyway. Is US amp better- maybe, maybe not, it`s a matter of opinion and I`ve heard yours. we hacked that topic to the end we should stop, really. OP I apologies.

 

[Victor_inox]

not that I know anything at all but I will pm you when my tech replies to my email. he will have a better understanding or at least will know what he is talking about from personal knowledge .

he works inside the business so he knows more than I could ever hope to.

Cool, will be waiting for your pm.

 

[Victor_inox]

Well, at least I tried to provide some evidence and what I heard when comparing both amps (bought new ).

GLWS to the OP.

Kelvin

I appreciate the effort, hopefully it ail help OP to sell his.