Measuring Scoop response. |
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TONY.A.S.S.
Old Croc Joined: 21 February 2007 Location: United Kingdom Status: Offline Points: 6878 |
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Posted: 16 June 2014 at 2:44pm |
Rather than let this get lost in the rest of the Razmataz, I thought it would be better to start again. There has been quite a lot of talk regarding how Scoops are measured and what counts and what doesn't.
I would imaging that most of us, if not all, are mainly interested in how our particular Scoops fare against others, whether we make them of just buy them for our own systems. The last set of tests I did were on my new 21's and when The Scoop was tested against the Horn cab, it was then time to test with the matching cabs that a customer was going to put underneath them. This was also completed, and quite definite comparative results were easy to read. You may recall I used my Iasys unit for signal and measuring, and the cabs were measured in 5hz steps from 20hz to 120hz. This could be 1hz steps if so desired, but 5hz seems ok. So, this post/thread is all about making this facility available and to see whether it is possible to organise a time in which as many different cabs can be brought together and tested. It doesn't take long to do, so a lot can be done in a few hours. This is purely a frequency response test and there is no music involved. This test would give everyone a good starting point to understand what their particular cab is doing. Everything is recorded, for our records and we each end up with a copy of results for all the cabs tested. This offer may turn out to be a no go, but at least I am trying to do something positive. Feel free to comment.
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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Sounds good Tony. Let´s see if it can happen. |
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Earplugs Are For Wimps!
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jammin75
Old Croc Joined: 08 July 2012 Location: west midlands Status: Offline Points: 2375 |
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feel the vibes !!! "Who Feels it Knows it" Strong like Lion
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Pasi
Old Croc Joined: 25 April 2010 Location: Knutsford Status: Offline Points: 2733 |
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I'm all for it and can do the same measurements to any box that what i do in commercial R&D to give full specs on any cabinet.
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burningbush
Old Croc Joined: 25 May 2009 Location: Pictland Status: Offline Points: 5897 |
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If someone could plot impedence against frequency, I would be eternally grateful. A really good idea Tony, might stop the he said/she said and give everyone a baseline/bassline they can work from.
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music is the message
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Pasi
Old Croc Joined: 25 April 2010 Location: Knutsford Status: Offline Points: 2733 |
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I can do impedance, impedance with phase, THD, waterfall, Impulse response, Phase, Group Delay, Frequency Response. You name it :)
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burningbush
Old Croc Joined: 25 May 2009 Location: Pictland Status: Offline Points: 5897 |
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Keep talking dirty, Pasi, I'm loving it.
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music is the message
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TONY.A.S.S.
Old Croc Joined: 21 February 2007 Location: United Kingdom Status: Offline Points: 6878 |
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All we need is time and place, I personally don't care where it is. I know this won't happen next week, So we will a consensus on where and when.
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bee
Old Croc Joined: 14 June 2011 Location: Middlesex Status: Offline Points: 4553 |
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sounds like a great idea, and will show what cabs actually do what... and will debunk hype, with actual truth.....
Edited by bee - 16 June 2014 at 7:04pm |
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https://www.elements-audio.com
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KidCreole
Old Croc Joined: 06 November 2013 Location: London (East) Status: Offline Points: 3600 |
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Just a simple sweep (hopefully not with a broom) |
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Mykey Wattco
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KidCreole
Old Croc Joined: 06 November 2013 Location: London (East) Status: Offline Points: 3600 |
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if you can't make it yours scoops are shit |
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Mykey Wattco
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Pasi
Old Croc Joined: 25 April 2010 Location: Knutsford Status: Offline Points: 2733 |
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Ha ha :p
Which bring to the good point though. Which measurements should be done and with what parameters? I'd say half space frequency response at 4m distance with 2.83V input and maybe then at 110dB level for THD and larger signal behaviour. Impedance and phase also at 2.83V I think that would give pretty good comparison points to most of the modern datasheets on pro audio side as well. |
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