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-   -   why so CHEAP!? (https://www.diyaudio.com/forums/tubes-valves/80330-cheap.html)

xstephanx 26th May 2006 10:56 PM

why so CHEAP!?
 
since im building a pair of fullrangers soon, ive been looking at tube amplifiers. Now i dont know about you, but when i think tube amplifier, my wallet starts screaming. but i was looking on ebay and there are all these tube amps from hong kong going at REDICULOUSLY low prices, below are some examples...

http://cgi.ebay.ca/Class-A-VACUUM-Tu...QQcmdZViewItem
http://cgi.ebay.ca/kt88-TUBE-stereo-...QQcmdZViewItem
http://cgi.ebay.ca/Totally-different...QQcmdZViewItem

how can they sell this stuff so CHEAP? the machined parts, chassis, and tubes must cost close to that much! i did notice that they nail you on shipping, but still, something MUST be amiss.

rdf 26th May 2006 11:09 PM

They saved big time on CSA approval? ;)

phn 26th May 2006 11:53 PM

They are made in Shenzhen, China, I'm sure.

From one very credible review I read once, they aren't bad at all. Caps and such might need being upgraded. But the thing, according to the reviewer, is that the built is there making upgrade/modification worthwhile.

Edit: Just googled this: "Located at the southern coastal area of Guangdong Province, Shenzhen is a Special Economic Zone and important industrial base in China, with an area of 2,021 square kilometers and a population of 0.8 million."

xstephanx 26th May 2006 11:56 PM

im really eyeing up that kt88 one, it looks so sleek, and it may not have much power, but how much pwoer do you really need for a pair of FE166e? not much!

phn 27th May 2006 12:13 AM

Yeah, it looks very neat. Those tiny handles!

I don't put much faith in Watt ratings. But 12 class A Watts aren't little.

xstephanx 27th May 2006 01:13 AM

probably mroe than enough for what it woudl be driving.

what do you think woudl sound better? that kt88 amp or a super t amp?

i know that the tubes would be a fair bit louder and offer more headroom.

xstephanx 27th May 2006 01:24 AM

ahhhh never mind, when you look at the buy it now prices the cheaper ones are about 500$, and all of the other ones that people have bid on, havnt had the reserve price met yet.

too quick on the trigger i guess:(

looks like theres a super t amp in my future

Giaime 27th May 2006 06:55 AM

I've dealt with that vendor, and he's quite good.

Good amps, I heard the one with 300B.

Tubes4e4 27th May 2006 02:49 PM

Re: why so CHEAP!?
 
Yeah, sure, 37 Watts per channel claimed out of a pair of EL34 per channel, running in "pure class A" ... either this dude thinks his customers are stupid, or he himself doesn´t know better - neither being a good sign :mad:

Theoretical maximum class A push pull efficiency: 50%. Max Pd of a pair of EL34: 50 Watt. ==> Theoretical max Po / ch: 25 Watt. In real life, you will have a hard time squeezing 20 class A Watts out in pentode mode.

AISI, this is not a serious offer.

Tom

cd813 27th May 2006 03:38 PM

These are China's inexpensive tubeamps.

Their output transformer does not good.They produce from Wenzhou,Zhejiang Province .

The hope does not purchase

Moreover,China has very many outstanding products,Like "audio01","Xindake","oper","shanling".They are China's outstanding brand


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