that means that a 3dB change in power represents a much smaller change in volume - one that is perceptible, but not significant in most cases.Īnd it just so happens that the 8O power of the backline 600 is 2.2dB below the 4O power:Ģ.2dB is not likely to sound louder, though it might sound more dynamic or better. What you may not know is that it takes a 10dB increase in power to equal a doubling of volume. what this means is that even seemingly large changes in wattage represent fairly small changes in volume output, all other factors being equal. Given the same sensitivity, volume displacement, you will not notice a difference in volume.Īs you probably know, volume is perceived in a logarithmic fashion. Not true based on your assumptions, the most important being "identical" cabinets and speakers. In order to maximize your amp, your final impedence should be 4 ohms. The higher your cab's impedence is, the less watts you'll be working with. To answer your question, you will be fine running only ONE cab, through ONE output, as long as the minumum impedence doesn't drop under 4 ohms.
#Gallien krueger backline 600 full#
Well, the eight 10" speakers will be pushing more air, but you won't be realizing the full potential of your amp.ĮDIT: Ok, I just re-read the whole thread 3 times, and I think I finally understand what you were trying to say. Now, you might be wondering which sounds louder: four 10" speakers (4ohms) running at 300W RMS, or eight 10" speakers (8 ohms) running at 150-200W RMS. Now, I'm not saying that watts equal volume here, but TYPCALLY, if we are comparing identical cabs and speakers, with the only difference being impedence, then you will get a perceivably higher volume out of the 4 ohm cab, than you will from the 8 ohm cab. So NOW you will have 150-200W driving 4 10" speakers. Now you're amp will only generate about half (or a little more) of it's 300W cabability. This will not utilize the amps 300W capabilities, as you are doubling your load (or your impedence). This will still use all 300W of power from the amp, but you will not be pushing as much air, as you are only driving four 10" speakers, as opposed to eight of them.Ĭonversely, you may only have an 8 ohm 410. You would then have the full 300W capability of your amp, pushing eight 10" speakers.
This would also be the same as if you daisy chained the cabs, and used only ONE output jack. Two 8 ohm 410s, (one plugged into each jack) would yield a 4 ohm load. There are hundreds of pages of Tube amp information on my library page. The GKBL has two outputs wired in parallel. Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips.
Let's limit the discussion to only 410 cabs. Never mind, you answered my question eventually, thanks.
0 kommentar(er)
