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Old 31st August 2006, 01:49 PM   #1
jarthel is offline jarthel  Australia
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Default what 300B design would you recommend but...

does not require a preamp?

I've seen one and it's from audiodesignguide.com (Andrea Ciuffoli).

Anything else?

thanks for the help
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Old 31st August 2006, 02:12 PM   #2
kmtang is offline kmtang  Canada
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I would recommend the JE Lab's 300B. It is well proven and with excellent quality sound.


Johnny
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Old 31st August 2006, 04:04 PM   #3
Klimon is offline Klimon  Belgium
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http://www.diyparadiso.com/sedesign1.htm

I haven't heard the 300b amps but this guy knows how to design a great sounding amp. His choice of driver tubes (c3m / 2c51) should be hard to beat.

Simon
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Old 31st August 2006, 08:18 PM   #4
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Thorsten's Legacy...
Get it before T gets it out of the air...
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Old 31st August 2006, 09:58 PM   #5
Katapum is offline Katapum  Europe
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Quote:
Thorsten's Legacy...
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Old 31st August 2006, 10:21 PM   #6
jarthel is offline jarthel  Australia
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Quote:
Originally posted by ghpicard
Thorsten's Legacy...
Get it before T gets it out of the air...

requires a preamp I think

ps. I already saved that one in my harddrive
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Old 31st August 2006, 10:29 PM   #7
Briney is offline Briney  United States
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Default JEL Deluxe

Greetings,

I'm listening to my JEL stereo version without a pre and I think it's great.

It's also pretty easy to build and parts are easy to find.

You can start cheap and upgrade as you go. I'm on version 4 having
switched all the iron from Hammond to James.

I just wish someone would give me a pair of WE 300b's 8-).

Brian
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Old 31st August 2006, 10:44 PM   #8
Katapum is offline Katapum  Europe
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Quote:
ps. I already saved that one in my harddrive
I built one!
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Old 31st August 2006, 11:15 PM   #9
jarthel is offline jarthel  Australia
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Default Re: JEL Deluxe

Quote:
Originally posted by Briney


You can start cheap and upgrade as you go. I'm on version 4 having
switched all the iron from Hammond to James.
I'm somewhat different that I start big (not that very big but at least quality parts). cheaper in the end.

===================


let me repeat that I require a design that doesn't require a preamp (i.e. the design has a volume control built-in)

I feel that adding a pot at the input on a design that doesn't have one is as as simple as connecting the wires.

Thank you.
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Old 31st August 2006, 11:56 PM   #10
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Quote:
Originally posted by jarthel



requires a preamp I think

ps. I already saved that one in my harddrive

I built one with a non-regulated but heavily filtered PS, with 45 output tubes, and custom built transformers, and it sounds fine to me. I'm using it without pre with an unmodded DVD player as a source until I can get something better, and have previously used it with several other digital sources and a tape deck (ugh) and it works fine.
You can use an EL84, an SV83 (P15P) or a C3m as a driver... I have used it with a couple of the first two and it sounds fine to me...

A pentode driver in pentode mode has its advantages.

Now, Katapum, if you could be more specific on your thumbs down, that would add to the discussion and to the OP request for help.

Gaston
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