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New 91A amp
Re: New 91A amp
"John Byrns" <byrnsj@sbcglobal . net > wrote in message
news:byrnsj-D1D666.13495214052008@newsclstr03.news.prodigy . net ...
> In article <0cGWj.950$_03.559@reader1.news.saunalahti.fi>,
> "Iain Churches" <IainNG@kolumbus.fi> wrote:
>
>> Someome building a single amp, or very small batches
>> has the distinct advantage in that a standard chassis
>> can be used, but with a little ingenuity, each one
>> can look distinctly different. Colour is of course a
>> very personal thing. I generally use anodised panels,
>> so black is the obvious choice. Waiting times at anodising
>> firms for blue, gold or red is long, and to my conservative
>> eye the panels look garish.
>
> I don't know about that, most of the pro audio equipment, mostly
> broadcast, that I remember from the post WW2 tube era was painted in
> shades of blue, green, umber, gray, silver, and the like, with very
> little black.
In the UK, grey hammer finish was common. The AVO MKIV
tube tester is typical.
* w w w .kolumbus.fi/iain.churches/Pics/AVO/MkIV/TopPanel03.jpg
> Black seems to have been the color of choice before WW2,
> and of course is the standard in home audio equipment today.
Even into the 50's most cars, at least in the UK, were black too.
Black is a good colour for audio equipment, although black a
powder coated chassis for a tube amp does seem to attract more
than its fair share of dust.
Regards
Iain
"John Byrns" <byrnsj@sbcglobal . net > wrote in message
news:byrnsj-D1D666.13495214052008@newsclstr03.news.prodigy . net ...
> In article <0cGWj.950$_03.559@reader1.news.saunalahti.fi>,
> "Iain Churches" <IainNG@kolumbus.fi> wrote:
>
>> Someome building a single amp, or very small batches
>> has the distinct advantage in that a standard chassis
>> can be used, but with a little ingenuity, each one
>> can look distinctly different. Colour is of course a
>> very personal thing. I generally use anodised panels,
>> so black is the obvious choice. Waiting times at anodising
>> firms for blue, gold or red is long, and to my conservative
>> eye the panels look garish.
>
> I don't know about that, most of the pro audio equipment, mostly
> broadcast, that I remember from the post WW2 tube era was painted in
> shades of blue, green, umber, gray, silver, and the like, with very
> little black.
In the UK, grey hammer finish was common. The AVO MKIV
tube tester is typical.
* w w w .kolumbus.fi/iain.churches/Pics/AVO/MkIV/TopPanel03.jpg
> Black seems to have been the color of choice before WW2,
> and of course is the standard in home audio equipment today.
Even into the 50's most cars, at least in the UK, were black too.
Black is a good colour for audio equipment, although black a
powder coated chassis for a tube amp does seem to attract more
than its fair share of dust.
Regards
Iain
Re: New 91A amp
On Wed, 14 May 2008 21:31:14 +0300, "Iain Churches"
<IainNG@kolumbus.fi> wrote:
>
>
>"Patrick Turner" <info@turneraudio . com .au> wrote in message
>news:482AE7C7.71A21400@turneraudio . com .au...
>>
>
>> There was a time in about 1975 when anodized bright and brushed
>> aluminium
>> was the peak of putting on the agony, and putting on the style.
>> Meters had green or yellow background lighting, and blue LEDs hadn't
>> been invented.
>
>Someome building a single amp, or very small batches
>has the distinct advantage in that a standard chassis
>can be used, but with a little ingenuity, each one
>can look distinctly different. Colour is of course a
>very personal thing. I generally use anodised panels,
>so black is the obvious choice. Waiting times at anodising
>firms for blue, gold or red is long, and to my conservative
>eye the panels look garish.
>
>But some people still like to work in copper or stainless steel.
>One of the guys with whom I share a workshop has a stainless
>steel chassis made for a tube amp. He spent four days polishing
>it. When I complemented him on his patience, he said "This is
>lightning quick compared with the time I spend sanding the
>body of an acoustic guitar.
>>
>> Anyway, in Orstraya, which is at some large distance away from full
>> civilisation
>> and its fickle changing trendiness, ie, it is culturally "astray",
>> people wanting decent tube amps are very accepting of black.
>> They still like black speakers.
>
>I agree. A good speaker in a piano lacquer cabinet looks very
>good indeed, and gives the impression of being physically smaller
>than it actually is. A young lady, an interior design consultant with
>whom I recently discussed the subject of audio systems in rooms,
>told me that actually mid-grey would be the best colour for speaker
>cabinets, and would sit well in almost any interior. She also opined
>that from interior designer's point of view speaker cabinets should
>be narrow (across the front) but deep, front to back. Interesting
>lass!
There are sonic implications to that, though. Ran into that when
making the mini speakers for the PC Speaker Amp.
I'd have to look it up again to be sure but if memory serves the
caveat for your 'standard' (sealed or ported) enclosure was the ratio
between any two dimensions should not be larger than 3, I think it
was, preferably 2.
'Thin and deep' would work for folded horn, transmission line and TQWP
speakers, though, except for what she'd probably consider an imposing
height.
For low end the thing is volume, volume, volume (liters).
>> They even didn't mind my use of polished brass chassis which tended to
>> tarnish.
>>
>> Real metal though.
>>
>> Black was brought to hi-fi gear because it was cheaper to make,
>> and it covered a multitude of minor defects in a design.
>>
>As I have mentioned before, it is fun to talk to people about their
>consmetic preferences for amplifiers. Some have good ideas, and
>others are clueless, unless you can show thewm something half-ready
>as a starting point.
>
>Iain
>
>
>
>
On Wed, 14 May 2008 21:31:14 +0300, "Iain Churches"
<IainNG@kolumbus.fi> wrote:
>
>
>"Patrick Turner" <info@turneraudio . com .au> wrote in message
>news:482AE7C7.71A21400@turneraudio . com .au...
>>
>
>> There was a time in about 1975 when anodized bright and brushed
>> aluminium
>> was the peak of putting on the agony, and putting on the style.
>> Meters had green or yellow background lighting, and blue LEDs hadn't
>> been invented.
>
>Someome building a single amp, or very small batches
>has the distinct advantage in that a standard chassis
>can be used, but with a little ingenuity, each one
>can look distinctly different. Colour is of course a
>very personal thing. I generally use anodised panels,
>so black is the obvious choice. Waiting times at anodising
>firms for blue, gold or red is long, and to my conservative
>eye the panels look garish.
>
>But some people still like to work in copper or stainless steel.
>One of the guys with whom I share a workshop has a stainless
>steel chassis made for a tube amp. He spent four days polishing
>it. When I complemented him on his patience, he said "This is
>lightning quick compared with the time I spend sanding the
>body of an acoustic guitar.
>>
>> Anyway, in Orstraya, which is at some large distance away from full
>> civilisation
>> and its fickle changing trendiness, ie, it is culturally "astray",
>> people wanting decent tube amps are very accepting of black.
>> They still like black speakers.
>
>I agree. A good speaker in a piano lacquer cabinet looks very
>good indeed, and gives the impression of being physically smaller
>than it actually is. A young lady, an interior design consultant with
>whom I recently discussed the subject of audio systems in rooms,
>told me that actually mid-grey would be the best colour for speaker
>cabinets, and would sit well in almost any interior. She also opined
>that from interior designer's point of view speaker cabinets should
>be narrow (across the front) but deep, front to back. Interesting
>lass!
There are sonic implications to that, though. Ran into that when
making the mini speakers for the PC Speaker Amp.
I'd have to look it up again to be sure but if memory serves the
caveat for your 'standard' (sealed or ported) enclosure was the ratio
between any two dimensions should not be larger than 3, I think it
was, preferably 2.
'Thin and deep' would work for folded horn, transmission line and TQWP
speakers, though, except for what she'd probably consider an imposing
height.
For low end the thing is volume, volume, volume (liters).
>> They even didn't mind my use of polished brass chassis which tended to
>> tarnish.
>>
>> Real metal though.
>>
>> Black was brought to hi-fi gear because it was cheaper to make,
>> and it covered a multitude of minor defects in a design.
>>
>As I have mentioned before, it is fun to talk to people about their
>consmetic preferences for amplifiers. Some have good ideas, and
>others are clueless, unless you can show thewm something half-ready
>as a starting point.
>
>Iain
>
>
>
>
