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Junior Varsity
JBL PRX series auto-off disable?
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<blockquote data-quote="Brian jojade" data-source="post: 147121" data-attributes="member: 211"><p>Re: JBL PRX series auto-off disable?</p><p></p><p></p><p></p><p>1. There are many of these speakers installed permanently. They are one of many choices to install. It's quite common to install powered speakers versus having a separate amp location, especially if there is no convenient space for an amp. Your argument that you have better control of the speakers by having separate amps together could be used as an argument for your portable situation as well. If so, then why are YOU using powered speakers? Running a separate audio cord and power cord for a portable situation is more of a pain than running signal and power once for a permanent install.</p><p></p><p>2. At idle, a powered speaker probably draws 25-30 watts. While not much, that works out to about $30 in electrical consumption per year if the speaker sits idle 24X7. It adds up if you have multiple speakers in a room.</p><p></p><p>3. Yes, in an ideal world, you could put all of the speakers on a switch or a breaker. However, now you need to teach people how to find that breaker and turn on the speakers when they are needed. Believe it or not, in many situations, that's more difficult than it seems. If you can just pick up the mic and talk, that is much easier for many to understand. It's quite common in the install world to leave stuff powered on 24X7 because of this.</p><p></p><p>4.The reason to keep things on 24X7 is answered in question 3. The same problems you describe, of people plugging things in, or amp failures, etc. could happen if you have an amp in a rack.</p><p></p><p>The final reason that the auto power off is a good thing is that it makes the speakers completely quiet when there is no signal. So, if you set up the speakers in a quiet situation, you won't have any speaker hiss at all until there is signal and they power up. Yes, it would be nice if you could defeat the option, but that extra option would increase the cost of the speaker.</p></blockquote><p></p>
[QUOTE="Brian jojade, post: 147121, member: 211"] Re: JBL PRX series auto-off disable? 1. There are many of these speakers installed permanently. They are one of many choices to install. It's quite common to install powered speakers versus having a separate amp location, especially if there is no convenient space for an amp. Your argument that you have better control of the speakers by having separate amps together could be used as an argument for your portable situation as well. If so, then why are YOU using powered speakers? Running a separate audio cord and power cord for a portable situation is more of a pain than running signal and power once for a permanent install. 2. At idle, a powered speaker probably draws 25-30 watts. While not much, that works out to about $30 in electrical consumption per year if the speaker sits idle 24X7. It adds up if you have multiple speakers in a room. 3. Yes, in an ideal world, you could put all of the speakers on a switch or a breaker. However, now you need to teach people how to find that breaker and turn on the speakers when they are needed. Believe it or not, in many situations, that's more difficult than it seems. If you can just pick up the mic and talk, that is much easier for many to understand. It's quite common in the install world to leave stuff powered on 24X7 because of this. 4.The reason to keep things on 24X7 is answered in question 3. The same problems you describe, of people plugging things in, or amp failures, etc. could happen if you have an amp in a rack. The final reason that the auto power off is a good thing is that it makes the speakers completely quiet when there is no signal. So, if you set up the speakers in a quiet situation, you won't have any speaker hiss at all until there is signal and they power up. Yes, it would be nice if you could defeat the option, but that extra option would increase the cost of the speaker. [/QUOTE]
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JBL PRX series auto-off disable?
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