blind testing

simon · Post by **simon** » Fri Jan 18, 2008 9:28 am

Dave the bass wrote:I'm letting mah freak flag fly.

Erm, sorry?

richardcooper2k · Post by **richardcooper2k** » Fri Jan 18, 2008 9:32 am

ed wrote:

My theory goes that:- so far most of the high street transistor amps have been class B or AB since the sixties, and I believe that has a unique sound.......now if all the valve amps had been run in class B or AB since the sixties then there would not be the comparisons that exist today......and certainly the prejudiced view would be a little quieter.....If those of the very vocal anti SS brigade had heard some of these single ended class A offerings I'm sure they wouldn't be so vocal in their condemnation.

could you also apply this arguement to the output stages of cd/dvd/dac ?

ed · Post by ed » Fri Jan 18, 2008 10:12 am

could you also apply this arguement to the output stages of cd/dvd/dac ?

absolutely no idea Richard, sorry. I don't know what class the gain stages work in for those devices, if indeed they have any.

SimonC

unfortunately wont be able to make it for weekend of 23/24 Feb as its a birthday weekend here. Besides which I'm unlikely to have anything ready by then.

Simon

I'm gonna fly my freak flag high........I think its jimi hendrix, possibly if six was nine....I always thought it was a reference to being upside down.....but I'm hoping dave will spill the beans

Dave the bass · Post by **Dave the bass** » Fri Jan 18, 2008 10:28 am

Re- "I'm letting mah freak flag fly". It's an oft-quoted lyric between Ms DTB and me from the Crosby, Stills, Nash and Young LP 'Deja Vu', the track 'Almost Cut my hair' is about not selling out to the man and conforming and such-like and contains the classic line "freak flag fly" line.
Other such gems ont he same track are concerning "looking into a rear view mirror and seeing ah Pohleece Car". EDIT. I think this link lets you preview that ACTUAL line, yes, just click the play button How cool is that... "it was mean't to be."....arrgghh thats a quote from Waynes World.

Pah! Squares the lot of ye

... I was only 5 when it came out but it's just one of those LP's we know inside out and have 3 copies of in various conditions.

Doesn't anyone else swap lyrics with there other halves ? Ooppss, maybe it's just us

DTB

Dave the bass · Post by **Dave the bass** » Fri Jan 18, 2008 10:35 am

ed wrote:I think its jimi hendrix, possibly if six was nine....I always thought it was a reference to being upside down.....but I'm hoping dave will spill the beans

I always thought if 6 was 9 I wouldn't ever be late for work

DTB

richardcooper2k · Post by **richardcooper2k** » Fri Jan 18, 2008 12:47 pm

ed wrote:
could you also apply this arguement to the output stages of cd/dvd/dac ?
absolutely no idea Richard, sorry. I don't know what class the gain stages work in for those devices, if indeed they have any.

i'm not sure either but i've never noticed any substantial heat sinking or hot items in these devices, so assume they're not operating in class a.

if this is correct then prehaps a good portion of the benefit of changing to a valve output stage could be gained from a well designed sand one operating in class a ?

pre65 · Post by **pre65** » Fri Jan 18, 2008 1:02 pm

Hi-i seem to remember reading that on some older CD players the headphone output was from a small separate class A amp and that taking this output to the pre amp input was "better" for sound quality !

Post by **Nick** » Fri Jan 18, 2008 1:30 pm

Hang on, don't we need to be carefull here, it looks like folk are making predictions from an as yet unproved (and untested) hypothesis.

richardcooper2k · Post by **richardcooper2k** » Fri Jan 18, 2008 2:04 pm

sorry if i gave the wrong impression- it was more of a musing than a definative statement

andrew Ivimey · Post by **andrew Ivimey** » Fri Jan 18, 2008 2:06 pm

As for the hypothesis - its a good idea that (almost) all those tranny amps were AB or worse and I hope soon I will be able to add to the debate what a Zen 5 sounds like.

It is a 'complimentary' amp even though in class A this to me still means PushPull. Right now, it is a non-working amp but, laters.

.... fade out with running bass line and psychadelic sounds ....

Captain America and his two chums pull up their Harleys outside a roadside coffee shop and the story continues .....

Paul Barker · Post by **Paul Barker** » Fri Jan 18, 2008 8:07 pm

No me and my other aarrff don't swap lyrics because I don't know any David Cassidy and she doesn't know any who.

audio-talk

blind testing

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