John Curl's Blowtorch preamplifier part II

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Another thing about pure... over the years at small live shows I typically find that it is impossible to understand WTF the lyrics are.. The cause is not the best microphones, that cannot pick up voices worth a damn on a stage setting specifically (no matter their "specs" for orientation) when they are pointed at the top of the singers mouth. I would go around and help adjust mic's sometimes when I really wanted to hear the lyrics, pre-show. But the people would typicaly work the microphone back down to the shitty position after a track or two. Sadly it would go from understandable to Peanuts teacher by the time they were happy. They would say that it just felt weird to have a mic in their face but the reality I am fairly certain about is that they basically wanted to run away the minute they could actually hear their own voice instead of some garble... Now in some cases that was almost fair, because some where terrible singers. They could have added some effects but kept the mic position... that never happened.

When I worked with one travelling rock band, we had a bass guitarist that liked to sing. But he was just screaming! So when he was screaming, I used to add 500 Hz for him on EQ, to add the 1'st singers' formant to his scream, and more reverberation, to make him sound acceptable. Several years later I met him, and he complained, "We recently were in a studio. Dude, they are so dumb, they even could not record my clean voice!" :D
 
You must not have done too much work with musicians... They don't have the slightest belief in the idea of "pure"; if they like how something sounds, they like it.
That's the creativity part....guitar pedals to shape guitar sounds, ditto guitar amps and speakers.
IME it is nearly impossible to get a musician to understand what a power conditioner does... most have absolute fear about one changing their "sound" and the concept of the quality of that sound they like improving makes zero sense to them; and they assume it could be done with an EQ.
That's all musos know, eq/effects and strings, amps, speakers etc.
That said, I have had essentially zero resistance from musos to trying 'something new', and in my case 100% preference.....technical explanations only bamboozle the typical muso, what matters is promise of change in sound.
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You can imagine the uphill battle. But for the few I ever did get to plug into one with guitar amps, they loved it! Guitars sound awesome without dirty power, and especially PFC.
Agreed, stage power is usually pretty rough with all kinds of loads in typical (pub/club/eatery) venues.
I have never heard of a power filter/condition for sale in a guitar shop. :idea:

Dan.
 
Speaking of power conditioning...

I was carrying a 2KW ferro-resonant transformer... Sometimes voltages in Soviet clubs were low, so it helped a lot. Except one case, when electric organ started vibrating with low speed like it was drunk... Light on the stage was steady... I measured voltage before the stabilizer, it was normal 220, but after it it was wobbling up and down, up and down... It turned to be, their local power station produced stable 220V, but 50 Hz was unstable. :D
 
Electric guitars sound dull without shaping sound by amps. You can listen for one song, then get bored. However, acoustic guitars are a different story, and from high end gear they benefit. The same with microphones. Some voices benefit from certain microphone distortions, like some ribbon mikes make voices special, while to record vocal ensembles clean microphones are preferable. All depends on the genre.
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Response shaping never hurt Shure's sales...
Despite the 'purist' protestations, mic response shaping in rock'n'roll stage environment is useful for adding 'presence' and 'cutting through' stage/PA typical noises and distortions.

Wavebourn, I had another listen to your new 42W amp and I still reckon the 'naked' chassis sounds better. regardless of which speakers.....aluminium dulls and adds an unnatural sound of it's own imho.
I have also heard your outdoor PA many times (on FB) and I find it impressively good, really good on the 'folk music' genre you use it for.....the amount of reverb/delay and out of tune vocals not so much. ;) .

Dan.
 
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Wavebourn, I had another listen to your new 42W amp and I still reckon the 'naked' chassis sounds better. regardless of which speakers.....aluminium dulls and adds an unnatural sound of it's own imho.

You should not see it then. :)

I have also heard your outdoor PA many times (on FB) and I find it impressively good, really good on the 'folk music' genre you use it for.....the amount of reverb/delay and out of tune vocals not so much. ;) .

It is such a genre. Bards, who are more poets than musicians. On BAF I am going to play some jazz and classic through them.

Edit: here is a typical example. Very famous senior bard. Recorded way off-axis, as you may see! But what is precious here, his satire. :)

https://www.facebook.com/anatoliy.lisovskiy/videos/1105623126139955/
 
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That's fine (I have BTW) but here it is carried into all audio design with the same lack of shame.

Why must there be shame? The shame should be in lying about it. People dig it, where is the down side besides false advertising?

PFC - If I may ask, is it a cap at the mains input or something more complex (active PFC)?

In the case with guitars it was passive (a lot of capacitance, requires discharge resistors for safety or something to drain them).
 
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