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Bijou All Tube Futterman Headphone Amplifier - Page 5

post #61 of 3977
1/24/08 at 7:24am
Quote:
Does anyone have a source for the 370DAX?
Wish I could find an Aussie source for you, due to the weight. However, you can get one at Angela Instruments: Online Catalog in Maryland. Edit: give this a try first.

There is a 370DAX in Queensland here.
Power Transformer and Choke Prices

It might be cheaper to buy and ship from the US.
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post #62 of 3977
1/24/08 at 8:14am
Quote:
Anyone heard of RK27 50k being used for the volume pot? Runeight?
Check this one out:

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post #63 of 3977
1/24/08 at 9:15am
Thanks for the follow-up Mazuki! How does it sound? ;-)
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post #64 of 3977
1/24/08 at 10:07am
Quote:
Originally Posted by amphead View Post
Wish I could find an Aussie source for you, due to the weight. However, you can get one at Angela Instruments: Online Catalog in Maryland. Edit: give this a try first.

There is a 370DAX in Queensland here.
Power Transformer and Choke Prices

It might be cheaper to buy and ship from the US.
That's what I was thinking. I'll email them and ask about the freight.

Thanks
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post #65 of 3977
1/24/08 at 10:39pm
Quote:
Thanks for the follow-up Mazuki! How does it sound? ;-)
Sounds very nice, smooth and punchy.
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post #66 of 3977
1/24/08 at 10:44pm
Quote:
Originally Posted by Mazuki View Post
Sounds very nice, smooth and punchy.
where did you get the case?
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post #67 of 3977
1/24/08 at 11:28pm
Any reports as to the level this amp roughly performs at yet (B22/Dynahi level, CKKIII, EHHA, etc.)? I'll be starting this build in roughly a month and am just curious to about where it fits in line with other DIY offerings. I'm expecting to like it, of course...just the curiosity in me
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post #68 of 3977
1/25/08 at 2:03am
Quote:
where did you get the case?
I had a friend buy it in China. I don't recommend using something like that. I have to run the amp with the cover off because with the lid on, it gets way too hot.

Those 6N6P/ECC99s really heat up. Mount them outside the case. I would suggest an entry level Hammond tube amp chassis (not those common extruded aluminum ones).
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post #69 of 3977
1/25/08 at 2:13am
Thread Starter 
go put someone on the spot

I think all the amps you mention are high fidelity, I haven't heard AMB's B22 or KG's Dynahi so my opinions would be limited on the solid state front but their reputation precedes them. I have been listening to the EHHA for several months but unfortunately that means very little as not many other people have and the bias of my listening preference confounds any "objective" opinions I may have. I spent a few hours comparing the Bijou to the EHHA, amongst others. I couldn't fault either amp in any musical presentation. They are both really fast amps, able to reproduce music with a wide dynamic range and not lose either their control over the bass (of which there is plenty) or their finesse in handling delicate midrange or highs. The soundstage is expansive and well defined. I had heard the expression "air around instruments" before but never got it until I had heard amps of this caliber. I compared them using Chesky's "golden ears" recordings and at a purely geek level they performed similarly and favourably on paper but when it came down to it, I seemed to enjoy listening to the Bijou more. I am not sure why this was, a new toy? the allure of multiple glowing tubes? the tube rectifier?

I will say that this amp will not disappoint, unless you live for hard edged analytical sound (which I believe excludes either of the SS amps mentioned too) . was that vague enough for you ..dB
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post #70 of 3977
1/25/08 at 2:20am
Haha, thanks a lot for that, dBel84...very much appreciated
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post #71 of 3977
1/25/08 at 2:24am
Quote:
Any reports as to the level this amp roughly performs at yet (B22/Dynahi level, CKKIII, EHHA, etc.)? I'll be starting this build in roughly a month and am just curious to about where it fits in line with other DIY offerings. I'm expecting to like it, of course...just the curiosity in me
I don't think this is a fair comparison necessarily because to my knowledge, this is the only all tube DIY headphone amp around.

That said, I would put it in the M^3 range in terms of complexity of build.
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post #72 of 3977
1/25/08 at 2:39am
Quote:
go put someone on the spot

I think all the amps you mention are high fidelity, I haven't heard AMB's B22 or KG's Dynahi so my opinions would be limited on the solid state front but their reputation precedes them. I have been listening to the EHHA for several months but unfortunately that means very little as not many other people have and the bias of my listening preference confounds any "objective" opinions I may have. I spent a few hours comparing the Bijou to the EHHA, amongst others. I couldn't fault either amp in any musical presentation. They are both really fast amps, able to reproduce music with a wide dynamic range and not lose either their control over the bass (of which there is plenty) or their finesse in handling delicate midrange or highs. The soundstage is expansive and well defined. I had heard the expression "air around instruments" before but never got it until I had heard amps of this caliber. I compared them using Chesky's "golden ears" recordings and at a purely geek level they performed similarly and favourably on paper but when it came down to it, I seemed to enjoy listening to the Bijou more. I am not sure why this was, a new toy? the allure of multiple glowing tubes? the tube rectifier?

I will say that this amp will not disappoint, unless you live for hard edged analytical sound (which I believe excludes either of the SS amps mentioned too) . was that vague enough for you ..dB
Thanks for sharing the flak dB , nicely put.

I'd like to point out though that this amp doesn't have the classic "tube sound" produced by traditional transformer coupled amps. In many regards, it's got that accurate and detailed sound of solid state amps.
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post #73 of 3977
1/25/08 at 3:04am
Thread Starter 
I have to agree with you there.

I have never bought into the hype of tube amps sounding rounded with bloated floppy bass etc it has to do with design and a well designed tube amp is everybit as accurate as a well designed ss amp. I think the "clinical" ss amps are guilty of 'poor' bjt selection ( in hifi it was described as "Japanese" vs "English" sounding amps.) I put these in parenthesis as some folk prefer analytical and who am I to judge, I do know a good psychiatrist should they ever be in need of one though ..dB
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post #74 of 3977
1/25/08 at 3:08am
Quote:
Originally Posted by dBel84 View Post
go put someone on the spot
Thanks for going out on a limb with your perceptions. We all know how easy it is to get grilled around here for such an act! No worries. We'll bail you out!
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post #75 of 3977
1/25/08 at 3:15am
Thread Starter 
much appreciated

toying with the idea of crashing your party on the 22nd, time is a little tight but it would be fun..dB
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