AMPLIFICATION

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Re: AMPLIFICATION

Postby lesclarke » 18 Jun 2010, 12:53

Briefly, very pleased with the Toa amp, especially since swapped the 8" horn for a 12" horn, nicer sound.
It's as powerful as I'm ever likely to need.

I've had a 'back-up' 12v power pack, using a plastic holder with 8 x 1.5v batteries for a while, but never actually used it. Just tested it powering the new amp,(which works from 10-16v) and it lasted for 4.5 hours before I got bored, using cheapish 'Pound Shop batteries', so a useful 'stand-by' to leave in the car.

I remember Geoff Felix's set up being featured here, and seeing that he used a similar power source and tiny amp.
As if I haven't got enough to do today, with all I've got to do today.
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Re: AMPLIFICATION

Postby Richard Coombs » 03 Jul 2010, 15:30

Hello Mikey.
Like Mark Andrews I own two Mipro systems , a 70w and a recently added 100w ..these are excellent ..but pricey. Great for the Big outdoors .

But still very good for the medium to big outdoors is exactly the system that Henrys have suggested to you
that vehicle amp is probably the Adestra , and is very good.

Search out Screwfix Direct online and get yourself some of their medium sized lead acid batteries . Screwfix are the cheapest for these type of battery.
But Maplins are the cheapest for the 'Intelligent Charger' you will need to keep them charged and maintained . You might need someone electrical minded to put some kind of little quick attach sockets onto the batteries , and corresponding fittings onto the lead that comes with the Adestra ( and also onto the end of the chargers' cable ...so that everything is quick and easy and safe to plug up.

For this I would suggest getting your batteries and Adestra , takinf them to your nearest Maplins ..they will find you the correct charger. suggest suitable connections , and probably put you in touch with someone local who can wire it all up for you.

Explain what you need ..you may even find its an easy 'evening job' for one of the sales assistants instore ?

...........
Sorry if all that baffles or scares you , but once its all set up you will have a trouble free time with an adestra set up.
.......

I use my Mipros for all my day to day gigs .
But at my Summer Season at the Heights of Abraham , I use an Adestra that stays in the permenant Booth for 8 weeks . It did run two horn speakers just as you are being sold . But a couple of years ago a very nice man that owns a company that builds speedboads gave me two wonderful speakers.

He had sat and giggled all through a show with his little neice , but had noticed that my speakers had a tin like rattle that day ( as I had left them on the booth and it had been a very wet night ).
His specialised speakers for Speedboats are totaly waterproof ( and I suspect expensive ) ...but he sent them to me a few days later , out of the blue as a gift , as he had enjoyed the show so much.


Proof that their are some smashing folk out there !.

Good luck with your set up Mikey.
And dont forget there is lots of other useful tips on this subject in the "punchmans tips" part of this website.

All the Best Richard.
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Re: AMPLIFICATION

Postby Chris » 03 Jul 2010, 17:50

As a tip for those who don't already know - all speakers are waterproof if you put them in plastic bags - a measure I have advocated more than once. And this affects the sound not one jot.
Also I have previously mentioned that horn speakers are quite the worst bet for sound. They are excellent if you want to be heard three miles away, or through metal walls - but if your aim is for an audience to comfortably hear and enjoy your show then get proper speakers. Even in a fairground environment cabinet speakers are better since although they won't carry as far as a horn speaker they will be good for the area of your audience.
Horn speakers are designed purely for speech, accentuate the treble and sacrifice any bass. There function is for loudness and clarity in difficult situations, but not subtlety of tone, characterisation of voices or for comfort of listeners. The voices of the characters tend to all sound the same and have a metallic quality while your swazzling is made more strident.
Admittedly some of the more expensive horn speakers can have a pretty good sound, but even so for the same or less money you can get better frequency range from alternative pa speakers.
While on my soapbox I might also repeat my opinion that the horn speaker on top of a Punch booth is very good for delivering your dialogue to people not watching your show - the way sound travels it will literally be above the heads of your audience.

By the way, why are we reviving an April posting? And why on Sales and Wants. Surely this should be on the Workshop section?
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Re: AMPLIFICATION

Postby Richard Coombs » 04 Jul 2010, 10:59

Hello Chris ...yes agree this topic would probably have done better started in a different area.

As to "re-opening" a topic ..well :-) ...I think you underestimate how genuinely interesting this site it ...you really have built a goldmine of information and tips.

Surely I cant be the only person who will have a trawl back through old posts to see what Ive missed ?
Probably not ( "And dont call me Shirley !" ) Or perhaps I need to get out more LOL.

You are quite right ...plastic bags waterproof speakers ...I just hadnt secured them well enough .
Also on that particular night the very bad rain was bought on by very strong winds , which first undid the twisted on poly-bags , then drenched the speakers.

The speedboat ones are marvellous , admittedly a souped up variation of a horn speaker.
And as you say with horn speakers , you need to visualise the transmitted 'cone' of sound that comes out of them and angle them towards your audience and tilt them down towards the audience if the are mounted up high ....otherwise , yes, you just broadcast to the middle distance past your crowd.

Hope you have a busy Summer lined up at Harlequin , and that good weather keeps your audiences big :-))

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Re: AMPLIFICATION

Postby Chris » 04 Jul 2010, 12:15

Oh I realise people browse back through previous postings Richard. But if you are reviving a long out of date topic then you may as well make it a new topic in the correct section. Also I do have to purge the forums occasionally otherwise they would get just too big. I tend to purge this section (Sales and Wants) and Coming Events more frequently since the postings are soon out of date. The Workshop forum theoretically contains the most useful (ie practical material) and I try not to purge that one because I know people do return to look up something they read last year. I've done it myself more than once to discover some bit of knowledge maybe you, or Les has offered and I've failed to make a note of at the time. Of course the idea is that I should transfer the best technical info to the main website where it appears under Punchman's Tips - but I find having to make a living rather gets in the way of doing all I would like to do with the website. It takes up a great deal of time just fighting the baddies who hack and spam, trying to correct the links that go "dead" because people change their websites or emails and don't tell me, and trying to keep up with the forever changing demands of new browsers, css and html updates. For example I spent a good hour last night correcting captions to pictures by adding "the late .... " where pictures were of the shows of Punch profs deceased since I put their picture on the website.
How the heck did I segue into that bit of whining?
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Re: AMPLIFICATION

Postby Richard Coombs » 04 Jul 2010, 13:30

Nah not whining at all Chris ....Like most folk here , I am staggered at the amount of time and effort you do put in to maintaining this site. Power to you elbow.

I am painting red and white stripes on my wooden "Heights of Abraham" Theatre at the moment .
With first sanding down and filling in cracks and splits , then a PVA patch over each mend to seal it well , then the gloss stripes , and now a layer of matt varnish to stop it all being too shiny in the ( hopefully anticipated ) sunshine .....I have been at it for days !!!
All I can see are red and white stripes when I close my eyes .


BUT ( back to topic) It is now time to dig out the Adestra set up for this booth , and check over the speakers and microphone . ..SO when I do this in a day or so , I will take some pics of all the bits and bobs.

These I will Post in the right part of the site ...Alongside all those other verbal tips and advice for newcommers setting up a sound system , some pics might also be useful .

"A picture is often Worth a Thousand Words" ...or something like that !


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