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Was lucky to hear these guys on stage at a festival in Manchester last weekend – awesome party band! Think they’re one of those bands you need to experience live really though…
[sc]soozamaphone[/sc]
[sc]dont-you-want-me-human-league[/sc]
Was lucky to hear these guys on stage at a festival in Manchester last weekend – awesome party band! Think they’re one of those bands you need to experience live really though…
[sc]soozamaphone[/sc]
[sc]dont-you-want-me-human-league[/sc]
Martin Audio badged Lab-Gruppen FP6400 going on ebay for cheap right now Martin Audio MA4.2S / Lab Gruppen FP6400 | eBay
Really nice amp, and powerful!
Have a read of Noname’s excellent guide to building a soundsystem in the sound engineering forum.
http://www.partyviberadio.com/forums/sound-engineering/27792-how-build-sound-system.html
And having a limiter before every amplifier is pretty essential if you don’t want to cook your speakers. You’ll need an active crossover like this http://www.amazon.co.uk/Pulse-Lsm216-Loudspeaker-Management-Crossover/dp/B00A49ZLF6 to split the left/right outputs from your mixer into the correct frequency bands for each speaker.
For anyone interested in setting up system limiters…
To calculate the limit point for each output, you need to consider the rated RMS power of each speaker and the voltage gain of the amplifier driving it. The aim is to limit the signal into the amplifier at the point when it is outputting the maximum power the speaker can take.
So let’s say you have a bass bin of impedance 8 ohms that is rated at 1000W RMS, and you are using an amplifier capable of outputting 2000W into an 8 ohm load. On the amplifier’s spec sheet it tells you that the input sensitivity if 1.2V. This means that if you put 1.2V into the amp (around 3.8dBu) you will get the maximum voltage out of the amplifier – putting more than 1.2V into the amp will cause clipping.
If we find out the voltage gain of the amplifier, we can calculate the input level that will result in the amp producing 1000W into 8R. This will be the point we want to limit at…
– We know that if we put 1.2V in, we get 2000W out at 8 ohms.
– Using P=(V^2)/R we can see that this corresponds to an output voltage of sqrt(2000 x 8) = 126.49V
– Formula for dB gain = 20log(V2/V1) = 20log(126.49/1.2) = gain of amplifier = 40.46dB
– 1000W at 8 ohms = sqrt(1000 x 8) = 89.44VSo if the gain of the amplifier is 40.46dB, and we want an output of 89.44V, what must the input voltage be?
40.46 = 20log(89.44/x)
10^2.023 = 89.44/x
x = 0.85VConverting to dBu, 0.85V = 20log(0.85/0.775) = 0.8dBu
So you’d need to set the limiter at 0.8dBu (or more likely 1dBu, as most processors work in 1dBu increments). I don’t bother doing all the maths every time – there are a couple of really useful tools for calculating dB gain and dBu/dBV conversion here…
– dB calculator for amplification gain and damping (loss) factor of an audio amplifier calculation decibel dB ratio – sengpielaudio Sengpiel Berlin
– dB dBu dBFS digital audio dBV to volts conversion – calculator volt volts to dBu and dBV dB mW SPL dB decibels – convert dB volt normal decibels relatioship relation absolute level convertor converter decibel to dbfs converter calculation online atteAlternately, use the limiter calculator at the bottom of the page on the Funktion One website that does it all for you!
Note that if you are using an amplifier that is not powerful enough to deliver the driver’s maximum rated power then you will need to set the limiter to be the same as the amp’s input sensitivity to prevent clipping (as an underpowered amp being driven into clipping is a dangerous thing and will toast drivers pretty quickly).
The SE Electronics stuff is really good for the money, would recommend the SE 2200A, I have one and am pretty pleased with it.
Do you sell goose grease?
I think I might have been at that party actually, or maybe the 2006 one, was it the one near Kew Gardens? I remember dancing lego men on-stage and calling Talk to Frank at about 7am and blowing a big raspberry down the phone at them.
@MR207 544438 wrote:
Mainstream music like Katy Perry and ghetto rap like Lil wayne. Also country is like nails on a chalkboard
Gary Denke.
@KimYangsu 544369 wrote:
Goose Wishes to Everyone,
I am very goose excited to take part this goose. This is Goose Goose and I am goose new goose goose amazing goose. Goose goose all goose goose, I goose goose goose goose goose goose.
Goose a goose!
Goose GooseAt least, that’s how I read it…
@barrettone 544057 wrote:
I agree with most of the sentiment of this post, but on the introvert thing, I don’t think it’s bad to be introverted. It’s not the same thing as being shy. It’s more to do with spending some time alone whereas extroverts do not enjoy it as much/prefer to do it less often/for less time.
But other than that tbh it’s all about having a good time.
Was gonna post something similar but you beat me to it. I’ll just post this vid instead as it pretty much sums up how I feel about introversion/extroversion…
@pyɔross. 543923 wrote:
Uni culture is fucking peak. Surrounded by fucking idiots.
I need to learn some more of this new yoot speak, I’m starting to feel like some sort of grandad saying ‘sound’ and ‘safe’ all the time.
@The Psyentist 543847 wrote:
You don’t think they’re a spammer too by any chance do you lol
I just fucking really hate music…
Go stick a goose up your arse.
http://www.youtube.com/watch?v=Y2tP9s8y2Ic
With the sound muted on the vid and this playing in the background…
[SC]jamko-booglie-wooglie-piggy[/SC]
http://www.youtube.com/watch?v=Y2tP9s8y2Ic
With the sound muted on the vid and this playing in the background…
[SC]jamko-booglie-wooglie-piggy[/SC]
Just found this little gem on Youtube while bored…
Some people are just fucked.
Just found this little gem on Youtube while bored…
Some people are just fucked.
Can I lower the tone…?
@barrettone 542623 wrote:
Hell I’d say even footballers/sportsmen are pretty smart, in a certain way. The level of dexterity needed for some things they do is certainly high-grade.
I’ve sometimes thought that snooker players must have really mathematical minds. Maybe they wouldn’t do so well in a maths test, but think of what must go on subconsciously for them to hit one ball with exactly the right force, angle and spin to cause another ball at the other end of a fucking big table (that’s waaay bigger than the pool table down the pub) to go in a pocket and leave the first ball in a good position for the next shot.
(Unfortunately it’s all wasted on me though as I’d rather watch my toenails grow than sit in front of the TV when snooker’s on)
April 25, 2013 at 1:36 am in reply to: Does using the DFA (Does **** All) button work or cause conflicts? #1272139@The Psyentist 542619 wrote:
Probably the precise answer the OP was looking for, shame Pat has likely scared them off.
Oh well, I somehow don’t think that ‘some druggy rave forum wot I found on the net’ would count for much in his list of sources anyway.
@barrettone 542605 wrote:
Don’t stress it too much tbh. IQ tests are for logical/mathematical thinking so if that’s not your thing it’s not covered by the test.
Theory of multiple intelligences – Wikipedia, the free encyclopedia
I’m definitely down with that. If intelligence is somehow a measure of our mind’s ability to make sense of things, then an IQ test seems like a pretty poor way to assess it. I think the IQ test has a lot to answer for, as it has shaped our idea of intelligence to fit this very narrow range of mental skills. I think the most useful thing you can tell about a person from their IQ is how good they are at doing IQ tests.
April 25, 2013 at 1:16 am in reply to: Does using the DFA (Does **** All) button work or cause conflicts? #1272138There is certainly plenty of anecdotal evidence from mix engineers that DFA faders, dummy equipment etc can be used to fool awkward producers who want to add more ‘sparkle’, ‘sex’ or some other ambiguous adjective into the mix. When I was at uni, an ex-BBC lecturer of mine described to us his ‘flange and bounce box’ – a mysterious home-built unit with a single female XLR on one side and a male XLR on the other. When a producer was being especially tiresome, they would wheel out this device with great ceremony and insert it into the signal path (‘aha – what you need is the flange and bounce box! We only get this out on rare occasions…’). You can probably guess what was inside the box: a short length of twisted-pair cable!
There is a definite psychoacoustic effect at work here – if you are expecting one sound to be better than another, the chances are that’s how you will perceive it. Take the example of audiphools who spend £1000 on a set of gold-plated speaker cables. They are convinced that they sound better than the cheap heavy-gauge copper found in recording studios around the world (N.B. For anyone interested in fancy cables, a good thing to ask yourself before buying them is ‘does anyone in the professional audio industry use these?’ Usually the answer is no). They even find ways to describe the differences: ‘the sound-stage is brought into sharp focus’, ‘the bass is more solid’. They can actually hear a difference. For the extra £1000 you certainly should be able to hear a difference! However, it is all in the mind, and there has not to my knowledge ever been a successful double-blind experiment that has been able to prove that exotic cables sound any better than their cheaper counterparts. Once the knowledge of which cable is which is taken away from the listener, the mind has nothing to go on and no way of playing tricks.
I think one of the most important skills to learn as an engineer is the ability to tell when something hasn’t made a difference. There are various psychoacoustic factors at play when it comes to preference of one sound over another; one being that people usually prefer the louder of two sounds, even if the only thing that is different is their loudness (this is why it is important to set the output gain of compressors carefully when mastering – the louder, but more compressed sound will usually sound better than the quieter, uncompressed original). There are lots of AES papers on the subject, which I unfortunately no longer have access to without paying a lot of money, but as a student you can download for free (Floyd Toole and Sean Olive are two names that spring to mind from when I was writing my final year technical project). There is also a certain level of competition among engineers as to who ‘has the best hearing’, and plenty of ’emperor’s new clothes’ syndrome going on, where if one person claims they can hear a difference between, say, two different pre-amps, nobody wants to be the one to admit that they can’t tell the difference. I try to be mindful of all these things, as I would rather be unable to tell the difference between two sounds than hear differences that don’t even exist!
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