Amp for running 6x Oberton XB1500 |
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junoprobelaunch
Registered User Joined: 01 April 2018 Location: Devon Status: Offline Points: 298 |
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Holy ... that hardly looks like an amplifier and more like something you'd use to power a city
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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Re read post from page 4
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I appreciate every like :)) https//www.facebook.com/genomesoundsystems
Mixes: https://www.mixcloud.com/gen-ome/ |
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odc04r
Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483 |
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Looks a bit more sensible, you're more on the right track now.
Interesting thing is that when the coil gets hot, the phase angle of the load reduces as assuming that the imaginary reactive part does not change you have just lowered the phase angle by increasing the real component instead. So there is at least one benefit from drivers getting a little warm. They pull less current and less reactive power is being sent back to an amp. But you just don't want them too warm... Still think the main amplifier killer is using cabinets with large phase angles in combination with low impedance around the low frequency regions where musical content is significant. This will be either side of the resonance peak so a vented box tuned to perhaps 40-50hz might cause an amp to dissipate a lot more extra heat than a box tuned to 60Hz, assuming that there is a lot of content around that frequency. The only thing you can really do about it apart from designing cabs to present nice loads in the first place, is to buy over-engineered amps with high transistor safe operating areas, and then run them sensibly. Which funnily enough is where all the empirical advice tends to end up. Wish I had more (any) spare days to play around with this stuff. |
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fatfreddiescat
Young Croc Joined: 15 October 2010 Location: N.E.Wales Status: Offline Points: 1081 |
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When I swapped my bass drivers from 6th order bandpass (two large impedance peaks in there workjng range) into ported horns that partially damped the upper impedance peak my amps ran much cooler, so totally agree with what your saying.
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junoprobelaunch
Registered User Joined: 01 April 2018 Location: Devon Status: Offline Points: 298 |
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I assume you are referring to
when I said I'd be running my WSXs "cranked up"? Fear not gen0me, I heeded all the advice and information in this thread very carefully and simply meant that for a few short points in the session I would push them closer (not TO) their safe limit. In general, I will be running this system relatively conservatively because before I start trying to squeeze every last db out of my drivers I feel I need to gain the neccesary experience to be confident doing so.
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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+1 Funny you mention the Ram BUX 5.0. A friend had 2 of those running 8 x 18" Beymas (not sure what model) and wasn´t convinced. He then swapped the Rams out for 2 x Crest 8001´s - supposedly less wattage, but swears that the system now sounds better - and louder. Like you say, a quality amp is always better. |
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Earplugs Are For Wimps!
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Sypa
Young Croc Joined: 21 February 2013 Location: Croatia Status: Offline Points: 920 |
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Ah cmon the Ram aint bad haha. I know im jumping in my mouth a bit here but i actually preffered the sound of the lowest lows <40hz the Ram used to produce. It felt a bit heavier than the k20, whereas the k20 is like a air blower cant really hear the crunchyness if you know what i mean ..
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toastyghost
The 10,000 Points Club Joined: 09 January 2007 Location: Manchester Status: Offline Points: 10920 |
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Everything discussed is intrinsically part of amplification. You can deny it all you like, but you're still wrong |
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csg
Old Croc Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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not when you look at the scale on the ammeter - which looks like 15A at the top...which at 240V would give you a maximum total output of around 3Kw assuming 85% efficiency - which it probably isn't. anyone looked inside? Maybe there is something else hiding inside...
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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valve head777
Old Croc Joined: 27 July 2012 Location: East Sussex Status: Offline Points: 1780 |
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Yeah but yeah but........ They're REGGAE WATTS.....!!
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Freedom of choice, choice of freedom.
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odc04r
Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483 |
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If its anything like most reggae amps and pre's what is inside is mostly air amd a spaghetti mess of wiring! But that's all part of the fun.
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James Tengo
Old Croc Joined: 09 May 2008 Location: Brighton Status: Offline Points: 2155 |
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Reggie Watts?
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