Tube preamp kit from ebay - worth my time? - Page 2 - diyAudio
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Old 18th October 2012, 08:30 PM   #11
DF96 is offline DF96  England
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How much voltage gain do you need?
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Old 18th October 2012, 08:33 PM   #12
SY is offline SY  United States
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Start with the question: what do you need the preamp to do? Do you actually need gain? If so, how much? What's the impedance of the load? DF96 is right, for MOST modern sources and reasonable length interconnects, a preamp is not needed- nothing is better than... nothing.

I would avoid Chinese eBay tube kits in general- there may be some good ones out there, but they've never shown up in any of the hundreds of postings about them that I've seen here. Most are poorly engineered and use lousy parts with bad thermal management.

edit: crossposted with DF96- GMTA
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Old 18th October 2012, 09:01 PM   #13
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to be honets, im not sure how much gain i need.. heck.. i didnt even know different preamp provide different gain range as you guys can see, this is all very new to me.. i am a novice as it gets.

The reason im looking into a tube preamp in the first place is beacuse my speakers and amp, while being very very good, do tend to be a bit too "analytic" at times and a level of wormth is something my system is lacking.. i tried a couple of tube preamps i brought over from friends and the result was pure magic - exactly what my system needed.

Last edited by Tankpopper; 18th October 2012 at 09:04 PM.
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Old 18th October 2012, 09:16 PM   #14
DF96 is offline DF96  England
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A Chinese tube buffer might be your answer.
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Old 18th October 2012, 09:31 PM   #15
sreten is offline sreten  United Kingdom
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Hi, I'd really like to see the speakers this is limiting, rgds, sreten.

A cynic regarding descriptions of amplifier sound quality, though
that wouldn't stop me recapping and fettling the above pre-amp.
Needs an attenuator on the AUX input for CD probably.
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Last edited by sreten; 18th October 2012 at 09:38 PM.
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Old 18th October 2012, 09:51 PM   #16
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here they are in all their glory:

Click the image to open in full size.

and here i am stuck inside trying to install my new crossovers:
Click the image to open in full size.
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Old 18th October 2012, 10:04 PM   #17
Einric is online now Einric  United States
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I was in your same spot last year.
I was looking for a tube preamp for my LM4780.
I looked all over on E-Bay and was a bout to pull the trigger on this E-Bay preamp kit.
Then I was pointed over to the Aikido preamp from Glassware and I am really thankful that I found it.
Long story short I love it and wouldn't look back for a second.
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Old 18th October 2012, 10:39 PM   #18
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by Tankpopper View Post
here they are in all their glory:
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nice
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Old 19th October 2012, 01:00 AM   #19
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the Glassware website is indeed very impressive, and as far as price goes, well, its just about the same price range. problem is - they have such a huge variaty! i dont know which kit would work best.. i want to have the option to choose from a few different sources and even add a phono stage later on.. also, i wanna keep it with as little tubes as possible cause they are some what hard to come by here in israel.
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Old 19th October 2012, 12:31 PM   #20
Einric is online now Einric  United States
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I'd agree about finding tubes can be difficult.
There are no places here in Montana that I can get tubes.
So....I'm always getting them from the internet.
Global Commerce baby!

There is a lot of support here on the Glassware products.
Multiple inputs can be done pretty simply by just adding a multiple position switch on the front.
A phono stage can be added pretty simply by using 12 series tubes and getting the Tetra phono stage without P/S.
The Aikido preamp was designed to be able to run a phono stage off of its P/S.

Last edited by Einric; 19th October 2012 at 12:34 PM.
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