E
easychair
New member
Farview,
So essentially you are saying you have to feed him half-truths and misinformation, cause he can't understand what's really going on? That neither helps nor protects him, as I see it. And you are telling me I've confused him?
I understand where you are coming from, but I have been bitten by doing that more than once. I run a small SR/Installation company, and am involved in SR education, on-the-job working with bands and employees, training end-users of installed sound systems, and am putting together a college-level curriculum for a local school. I have found that the best way is to find a simple but accurate explanation that covers the question, and opens the door if the person wants to go deeper.
After cleaning up more than a few messes I created over the years, I may be a little sensitive.
And I know this is HR.com, not a pro site, but that makes me feel that accuracy from those who know the real story is even more important, as there is no content moderating, and posts from longer-time high post-count members with good rep like you are treated as being good solid info, generally. And usually is.
It's not that hard. Jacko-some speaker companies give incomplete specs. The ratings for your speakers are average, not peak power handling. Some tube amps put out way more juice than they are rated for. Your cab can handle 240W peaks, your amp is unlikely to hit that level, even if it puts out more than 120W. You don't need a new cab, unless this one turns out to be the wrong choice for other reasons, like tone or frequency response.
ggunn-
Here is a link to Rane's pdf on the subject. In addition, I have had quite a few discussions with a poster at Prosoundweb on the Live Audio Board called JR, a former engineer/product designer with Peavey and other companies. I posted to someone there about a year ago on this subject, and JR schooled me hard.
Rane notes
Sorry it's a pdf. I used to have a link to an html version, but I can't find it.
The rest of the notes are very well written and informative as well.
This explanation makes sense to me. BTW, I was taught the old story at a professional SR technical seminar about fifteen years ago, by the head of the SR division of a widely-known company, who regularly set up and installed massive systems, and was otherwise completely knowledgable. Until last year, I had no reason to think it was incorrect.
So essentially you are saying you have to feed him half-truths and misinformation, cause he can't understand what's really going on? That neither helps nor protects him, as I see it. And you are telling me I've confused him?

I understand where you are coming from, but I have been bitten by doing that more than once. I run a small SR/Installation company, and am involved in SR education, on-the-job working with bands and employees, training end-users of installed sound systems, and am putting together a college-level curriculum for a local school. I have found that the best way is to find a simple but accurate explanation that covers the question, and opens the door if the person wants to go deeper.
After cleaning up more than a few messes I created over the years, I may be a little sensitive.

It's not that hard. Jacko-some speaker companies give incomplete specs. The ratings for your speakers are average, not peak power handling. Some tube amps put out way more juice than they are rated for. Your cab can handle 240W peaks, your amp is unlikely to hit that level, even if it puts out more than 120W. You don't need a new cab, unless this one turns out to be the wrong choice for other reasons, like tone or frequency response.
ggunn-
Here is a link to Rane's pdf on the subject. In addition, I have had quite a few discussions with a poster at Prosoundweb on the Live Audio Board called JR, a former engineer/product designer with Peavey and other companies. I posted to someone there about a year ago on this subject, and JR schooled me hard.
Rane notes
Sorry it's a pdf. I used to have a link to an html version, but I can't find it.
The rest of the notes are very well written and informative as well.
This explanation makes sense to me. BTW, I was taught the old story at a professional SR technical seminar about fifteen years ago, by the head of the SR division of a widely-known company, who regularly set up and installed massive systems, and was otherwise completely knowledgable. Until last year, I had no reason to think it was incorrect.