John Curl's Blowtorch preamplifier part III

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Yes, I have to fix the wire department. Another reminder - cables

So cables...isolator...shielding ( do I need shielding for power? And where I do the grounding ? Maybe it's just another wild branch I've never explored..!? )
I have not tried shielded AC power wires but if the shield was earthed at the plug you would achieve some degree of capacitive LP filtering which would not be a bad thing.
I am running all copper RG-59 antenna coax (no tin platings etc) as speaker wire and with 75R terminating resistors at each end the result is superb ime.
Sometime I will get around to grounding the speaker baskets (connect to crossover earth/-ve common or maybe just driver -ve connection) and see if that makes any useful difference.
From what I see with your 'free in space' speaker wiring arrangement you are creating antennas, great for radio reception, not so good for baseband audio and surely inviting RFI caused issues.


Dan.
 
In the concert business the question is who owns the mixer settings? Today these are stored in a thumb drive. Does the "engineer," the band, the promoter or the sound company own the settings?

What has happened is initially a skilled person is used to do the first few gigs. Then they get replaced by a lower paid replacement? Should the first hire take the settings?
Simon, it seems obvious the mixing desk automation is a tool that the mixing engineer can use or not *at his convenience*. It is part of HIS performance that is to make the PA sound, not to tune a mixing desk.
He is supposed to let the mixing desk in the state where it was before he begin to use-it if he do not own-it. What we usually do by politeness at each last gig or recording session. He is free to erase all informations created by himself. IE, to clear the thumb drive if this drive was not his own, as it was. Unless he accepted some special amendment to the contract about this point.
 
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Mobile Fidelity got our schematics. Everything is negotiable for the right $$
I see some universities offer classes in contracts, negotiations and VC money in the EE department. A good idea to keep technical talent from getting mixed up or ripped off by the wrong people.
 
My Dad had developed and taught classes at the now defunct Art Institute on administration of contracts to help prevent people from getting burned by the salesman-types. Is super common in fields where an individual’s personal judgement often means more to the quality of a delivered product or service than just having a degree alone.
 
Gads. I assume one gets a contract and both sides take it to a lawyer experienced in contract law for review. ... suggest word changes et al. California is very fair to the inventor or designer. You can take your knowledge with you to another company. Your old company cannot prevent you from using your own intellectual property to compete with them. You really should get a lawyer, JC. Before signing anything. If it wasnt in writing, it is not so. Anything said, promised, implied etc does not count in business. Only what was agreed to in writing is what counts.

All... get a lawyer, and get an Agreement before signing anything and before starting any work. .



THx-RNMarsh
 
Gads. I assume one gets a contract and both sides take it to a lawyer experienced in contract law for review. ... suggest word changes et al. California is very fair to the inventor or designer. You can take your knowledge with you to another company. Your old company cannot prevent you from using your own intellectual property to compete with them. You really should get a lawyer, JC. Before signing anything. If it wasnt in writing, it is not so. Anything said, promised, implied etc does not count in business. Only what was agreed to in writing is what counts.

All... get a lawyer, and get an Agreement before signing anything and before starting any work. .



THx-RNMarsh

Wise words. If it ain’t written down, signed by both parties and witnessed by a third party it’s not an agreement.

The very fact that you have such an agreement will mean about 80% of the time both parties will fully comply. The next 10% will try their luck but faced with litigation will comply and the final 10% will try to get out of it - that’s the nature of business.
 
I would doubt the magic works in another church unless US churches are all exactly the same size, shape and consruction. If they are then you should be offering 'church pack 1' for a bargain price as you know the setup with a suitable EULA that the recipient needs to sign.



The knowledge bit is of course why you charge $150/hr when you grace their presence on site 🙂
 
In the world of traveling bands, the mixer travels with the show. It is left programmed to save set up time.
Dunno how it is in the states, but, in Europa, never had seen a sound engineer hired for a big tour to be replaced for economical reasons. Who cares of the negligible difference of his appointment in front of what cost the whole tour expenses. (Equipments, trucks, car, planes and bus rentals, travels fees, hotels, restaurants, roadies etc.) it's an army to the field.
And the quality of the sound is one of the most important things for the success of a band's tour.

If the front mixer is fired and replaced for artistic reasons, who cares of his presets ?

Anyway, I will never, never like to use the presets of an other guy. We all have our tricks and preferences. We all chose different mics for different instruments, etc. Bands never play the same during two gigs, And even the Speakers/room equalisation, that is a pure technical part of the PA system, change in each hall because acoustics are so different.

Well, it can happens two PA systems can tour in the same times. Because too many gigs, to far from each others and not enough time between them for the set-up. The mixer will manage its own presets the way he want.
(I usually left one with each mixing desk and keep a copy with me.)
So, really, this theoretical question was never asked during this professional part of my life.

I had one experience, where I was hired with the PA company I was working for, to train the usual sound mixer of a group on our big PA system. We did some rehearsals and the two first gigs together, and left him alone for the rest of the tour. The presets and everything were left to him, it was obvious it was part of the service.
 
Gads. I assume one gets a contract and both sides take it to a lawyer experienced in contract law for review. ... suggest word changes et al. California is very fair to the inventor or designer. You can take your knowledge with you to another company. Your old company cannot prevent you from using your own intellectual property to compete with them. You really should get a lawyer, JC. Before signing anything. If it wasnt in writing, it is not so. Anything said, promised, implied etc does not count in business. Only what was agreed to in writing is what counts.

All... get a lawyer, and get an Agreement before signing anything and before starting any work. .

I believe you are confusing "intellectual property" with "knowledge". Intellectual property has, by definition, clear boundaries and an owner. If for example you develop a new product or process while working (and being paid as agreed) for company X, then the intellectual property of the product belongs by default to company X. They may or may not choose to protect it with a patent.

The knowledge an employee accumulated during developing the product or process belongs to the employee and company X has no default rights over that. They may choose to try to force contractual legal rights over anything related to the product, but this is very hard to enforce legally and indeed California courts are prone to side with the employee in such (rare) cases. As usual, there are lots of gray areas in these matters.

Don't ask me how I know these, I'd have to kill you first...
 
You're contracting for a job everything is negotiable. We didn't contract the consultant to do anything we wanted to see all his terms then decided they were not acceptable. Same with your example, if we don't own the mixer settings we'll find someone else.
Wise words. If it ain’t written down, signed by both parties and witnessed by a third party it’s not an agreement.

The very fact that you have such an agreement will mean about 80% of the time both parties will fully comply. The next 10% will try their luck but faced with litigation will comply and the final 10% will try to get out of it - that’s the nature of business.
That's what I was referring to, those who are familiar with doing business (professionals) would be familiar with what the contracts are like and would not come up with a question like "How somebody can oblige somebody else to give anything *he owns* for ... free ?"
 
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