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<blockquote data-quote="Andrew Prince" data-source="post: 81945" data-attributes="member: 1808">Re: JBL SRX / QSC PL236 underpowered?Ah right. Makes sense now. I&#039;ve just never heard a speaker referred to like that before.Yes, I&#039;m aware of that. I&#039;m a sound engineer myself.There isn&#039;t a problem here. I&#039;m simply trying to find out if anyone has an opinion on how to get the best out of the system. It&#039;s akin to asking if my car is doing okay at three miles to the gallon? A reality check on the numbers if you like.I know the 715s and 718s are good boxes. I&#039;m just not convinced I&#039;m driving them with the right amps or in the right configuration. What I&#039;m asking is, did JBL design the SRX system to run with two tops and two subs? Or should it be two tops and FOUR subs? Then I&#039;m asking what everyone would use to drive that system in terms of power.Currently it does this:2 x tops at 8 Ohms driven at 725W each (for 1600W total)2 x subs at 8 Ohms driven at 725W each (for 1600W total)My maths say it should be this:2 x tops at 8 Ohms driven at 1600W each&nbsp; (for 3200W total)4 x subs at 4 Ohms driven at 1600W each (for 6400W total)I did once run 4 subs with the second QSC amp powering them all in stereo (at 4 Ohms I think) but I thought it sounded muddy. Regardless, the band no longer has 4 subs. However, 3200W total power is a little bit different from 9600W total power! Hence, it doesn&#039;t make sense to be hiring a PA in for gigs that require a little bit more oomph when the current PA is more than capable of delivering it, if it&#039;s set up properly. Maybe I should sell the QSC amps and buy more appropriate amps to save money on hiring a PA in future? For example, I could get a grand for those two QSC amps, buy a couple of Behringer iNuke models AND buy the old subs back, for the same amount.That does indeed seem to be the consensus. Thanks TJ and to everyone else who contributed.&nbsp; <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile&nbsp; &nbsp; :)"&nbsp; data-smilie="1"data-shortname=":)" /></blockquote>

[QUOTE="Andrew Prince, post: 81945, member: 1808"] Re: JBL SRX / QSC PL236 underpowered? Ah right. Makes sense now. I've just never heard a speaker referred to like that before. Yes, I'm aware of that. I'm a sound engineer myself. There isn't a problem here. I'm simply trying to find out if anyone has an opinion on how to get the best out of the system. It's akin to asking if my car is doing okay at three miles to the gallon? A reality check on the numbers if you like. I know the 715s and 718s are good boxes. I'm just not convinced I'm driving them with the right amps or in the right configuration. What I'm asking is, did JBL design the SRX system to run with two tops and two subs? Or should it be two tops and FOUR subs? Then I'm asking what everyone would use to drive that system in terms of power. Currently it does this: 2 x tops at 8 Ohms driven at 725W each (for 1600W total) 2 x subs at 8 Ohms driven at 725W each (for 1600W total) My maths say it should be this: 2 x tops at 8 Ohms driven at 1600W each (for 3200W total) 4 x subs at 4 Ohms driven at 1600W each (for 6400W total) I did once run 4 subs with the second QSC amp powering them all in stereo (at 4 Ohms I think) but I thought it sounded muddy. Regardless, the band no longer has 4 subs. However, 3200W total power is a little bit different from 9600W total power! Hence, it doesn't make sense to be hiring a PA in for gigs that require a little bit more oomph when the current PA is more than capable of delivering it, if it's set up properly. Maybe I should sell the QSC amps and buy more appropriate amps to save money on hiring a PA in future? For example, I could get a grand for those two QSC amps, buy a couple of Behringer iNuke models AND buy the old subs back, for the same amount. That does indeed seem to be the consensus. Thanks TJ and to everyone else who contributed. :) [/QUOTE]

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