Members stompinne Posted February 8, 2006 Members Share Posted February 8, 2006 Yeps, my amp is 1000 watt 4 ohm, my speakers 600 watt 4 ohm. How far can i turn my amplevel/knobs.Suppose the knoblevel/layout is "0 to 10"....does this mean i can set the amp on level "6"? Or doesn't this work in this mathematical manner? Link to comment Share on other sites More sharing options...
Members agedhorse Posted February 8, 2006 Members Share Posted February 8, 2006 What amp and what speakers? Not all numerical ratings have the same meaning. Link to comment Share on other sites More sharing options...
Members stompinne Posted February 8, 2006 Author Members Share Posted February 8, 2006 Originally posted by agedhorse What amp and what speakers? Not all numerical ratings have the same meaning. Not pro-brand Speakers:http://www.new-line.nl/webshop/view.asp?i=13340 Amp:http://www.new-line.nl/webshop/view.asp?i=12400 Can you explain more 'bout those "numerical ratings"? Link to comment Share on other sites More sharing options...
Members ctardi Posted February 8, 2006 Members Share Posted February 8, 2006 Numericle ratings...Say two different amps with the same specs (Different brand though), both had knobs numberd 1-10. 4 won't necisarraly be the same volume on one amp as it is on the other... Link to comment Share on other sites More sharing options...
Members agedhorse Posted February 8, 2006 Members Share Posted February 8, 2006 Probably a reaonable match as long as you don't flash the amp's clip lights much. Sure looks like another Chinese "lookie like JBL" product. There's a ton of that stuff in Europe now. Link to comment Share on other sites More sharing options...
Members Glyder Posted February 8, 2006 Members Share Posted February 8, 2006 JB-Systems Vibe-30 Put the "L" in there and viola! Link to comment Share on other sites More sharing options...
Members agedhorse Posted February 8, 2006 Members Share Posted February 8, 2006 Originally posted by Glyder JB-Systems Vibe-30Put the "L" in there and viola! Not even very sneeky eh? Link to comment Share on other sites More sharing options...
Members stompinne Posted February 8, 2006 Author Members Share Posted February 8, 2006 Originally posted by agedhorse Probably a reaonable match as long as you don't flash the amp's clip lights much. . That's just the question...what's reasonable?? The amp won't clip anytime or heaten up (stays complete cool for hours on end), that's for sure....but how far to turn the volumes, to get the max out of the speakers??? How can i know i reach that speaker saturation point. PS; JB, JBL ..whats in a name....more info http://www.beglec.com/semi-pro DJ-stuff for a reasonable price...consumer-support is great, weekly based repair-service-return (if necessary, lol) the speakers sound flat stand-alone, but become superb, crisp with a EQ-tool Link to comment Share on other sites More sharing options...
Members ctardi Posted February 8, 2006 Members Share Posted February 8, 2006 Originally posted by stompinne That's just the question...what's reasonable?? The amp won't clip anytime or heaten up (stays complete cool for hours on end), that's for sure....but how far to turn the volumes, to get the max out of the speakers??? How can i know i reach that speaker saturation point.PS; JB, JBL ..whats in a name....more info http://www.beglec.com/semi-pro DJ-stuff for a reasonable price...consumer-support is great, weekly based repair-service-return (if necessary, lol) the speakers sound flat stand-alone, but become superb, crisp with a EQ-tool What's Reasonable? EDIT: Whoops, that's 1000 watts x 2. If you hear distortion, you are too loud. I'd go around the 7 or 8, and play it by ear from there. Link to comment Share on other sites More sharing options...
Members Danny (NS::U) Posted February 8, 2006 Members Share Posted February 8, 2006 Note that all of the below is just an opinion: Don't worry about "getting the most," worry only about getting "enough" that sounds pleasant. Trying your hardest to run an enclosure at the outside edge of its performance envelope all the time is a recipe for cooking something in the long run (maybe even the short run.) I dare say that most folks running FOH or monitor rigs aren't trying to get their drivers to saturate. Rather, we're trying to keep them as free from distortion as possible. I would much rather have a PA that is, generally speaking, a bit "big" and underworked, as opposed to one that I had to push hard all the time. From an academic standpoint, though, I might do the following: Consult the specifications of my mixing console and FOH processing to see what the maximum output levels were (+20 dBu, +22 dBu, whatever), and then find out what the maximum input level of the power amp is. If the maximum output of any part of that chain is lower than the maximum input of the power amp, I then know that I cannot (without more gear) get to the maximum theoretical output of the amplifier, no matter what settings I make. If, however, I find that I can drive the amplifier to full power, and I worry that I have too much power, I would probably want to limit my usage of power to a safe level. I would personally do this with a limiter in the FOH rack, but if you don't have that luxury, you can change the input attenuators on the power amp's face. In your case, what I might do is to buy or borrow an SPL meter, find a way to run pink noise or (at least) a steady 1kHz tone through the PA. Assuming that the rest of the gear can hit the maximum input level of the power amp, I would initially set the amp to run "wide open," and then run the noise or tone at a level that I could stand to hear for a while. Noting the level at the SPL meter (whatever "weighting" you want, as long as you're consistent), I would turn the attenuators down until the SPL meter read 2 - 3 dB SPL less than when you started. At that point, the amp's maximum output is more like 500 - 600 watts into 4 ohms, which is right in line with the rating of the enclosure. (10 log [600 watts/1000 watts] = -2.22 dB as referenced to 1000 watts) Link to comment Share on other sites More sharing options...
Guest Anonymous Posted February 8, 2006 Share Posted February 8, 2006 Originally posted by stompinne That's just the question...what's reasonable?? The amp won't clip anytime or heaten up (stays complete cool for hours on end), that's for sure....but how far to turn the volumes, to get the max out of the speakers??? Generally there is no correct fixed setting just like there's no correct set amount to depress the gas pedal on your vehicle to minimize the travel time but not exceed the speed limit. What's reasonable is a setting where the PA is loud enough to do the job, but not driving the system too hard. Depending on the situation and system, that setting on the knob is going to be somewhere between 1 and 10. Link to comment Share on other sites More sharing options...
Members GCDEF Posted February 8, 2006 Members Share Posted February 8, 2006 How loud the output is depends directly on how hot your signal from the mixer is to. There is no answer to your question other than to say if you hear distortion, turn it down. Link to comment Share on other sites More sharing options...
Guest Anonymous Posted February 9, 2006 Share Posted February 9, 2006 I've been thinking about this question. It seems to me that if there was an optimum postion for the volume knob (s), there would be no need for the volume knob (s)... kind of like my washing machine... just turn the dial for the type of stuff you're doing, hit the on switch and let La-Machine do it's thing. I suspose sooner or later PAs (and most everything else) will come to that. I've always liked this quote: "sigh... yes Jane, it was a tough day at work. I'm beat. I had to push the button 3 times!!!" George Jetson Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.