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12-15-2011, 08:54 AM
| | | | Huge amps and back trouble?
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Why bring a HUGE SVT or Reeves or /13 or Ashdown (amps that weigh 85lbs+++)???
You can slave one 50 watt amp into another 50 watt amp and have even MORE volume!
What say u?
Mook |
12-15-2011, 08:56 AM
| | Registered User | | Join Date: Jun 2005 Location: South Carolina, USA | | | This does not make sense. |
12-15-2011, 09:00 AM
|  | Junkyard Scout | | Join Date: Aug 2008 Location: Dominican Republic | | Quote:
Originally Posted by Cristo  This does not make sense. | +1 I thought you we're going to go with the digital light weight 500 watt argument...
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Amps: Ampeg b15n + Acoustic 370
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12-15-2011, 09:01 AM
|  | Bassasorous | | Join Date: Sep 2011 Location: charles town, wv | | | An SVT has 300 watts (the one I'm thinking of anyway). How are you going to get that with two 50 watt heads? Maybe some of the experts will speak up, but I don't that that slaving two 50 watt heads gives you 100 watts. I could be wrong about this. |
12-15-2011, 09:07 AM
|  | Yeah, I've got the moves like Jagger. | | Join Date: Oct 2006 Location: G.R. MI | | | I have a 600W 1x15 combo amp that weighs a tad over 50lbs. I love it!
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Originally Posted by hover He's got the Moo OO OO OO OO OO OO OObs like Jagger.... | |
12-15-2011, 09:07 AM
|  | Registered User | | Join Date: Mar 2011 Location: Central FL | | | One word : Tone. |
12-15-2011, 09:10 AM
| | | | wattage is based on a Logrithmic (sp?) scale. That is, 300 watts is NOT that much more powerful that 50 watts. Seriously! No ****!
The basic rule, is this: To double the sound level (dbs), you must TEN-FOLD the wattage.
So, a 1000watt amp is twice as loud as a 100watt amp.
Mook |
12-15-2011, 09:13 AM
| | Registered User | | Join Date: Jan 2010 Location: valparaiso, in. | | | I thought it was the 135lb. 810 speaker cabs? |
12-15-2011, 09:16 AM
| | Registered User
Owner, Bill Fitzmaurice Loudspeaker Design | | Join Date: Sep 2004 Location: New Hampshire | | Quote:
Originally Posted by garmenteros +1 I thought you we're going to go with the digital light weight 500 watt argument... | +1. If you want to go lightweight go Class D. If you want tube tone deal with the weight. Quote: |
You can slave one 50 watt amp into another 50 watt amp and have even MORE volume!
| -1. 50 plus 50 equals 100. |
12-15-2011, 09:19 AM
| | | Quote:
Originally Posted by billfitzmaurice -1. 50 plus 50 equals 100. |
Not quite. In in the laws of Physics and Sound.
Regarding Class D amps, I should have also said this thread was specific ONLY to tube amps, hence the "bad back" reference in the thread title.
Mook |
12-15-2011, 09:25 AM
| | Registered User | | Join Date: Nov 2011 Location: Grand Rapids Michigan | | Quote:
Originally Posted by Mook Not quite. In in the laws of Physics and Sound.
Regarding Class D amps, I should have also said this thread was specific ONLY to tube amps, hence the "bad back" reference in the thread title.
Mook | You're a Physicist?  |
12-15-2011, 09:44 AM
| | Registered User | | Join Date: Feb 2005 Location: Edinburgh & Dundee, Scotland | | Quote:
Originally Posted by Mook wattage is based on a Logrithmic (sp?) scale. That is, 300 watts is NOT that much more powerful that 50 watts. Seriously! No ****!
The basic rule, is this: To double the sound level (dbs), you must TEN-FOLD the wattage.
So, a 1000watt amp is twice as loud as a 100watt amp.
Mook | You are talking about bels (and decibels), which are on a log scale. Power scales linearly.
100 watts is 3dB louder than 50 watts
200 watts is 3dB louder than 100 watts
400 watts is 3dB louder than 200 watts etc etc
You need a 10x power (W) increase to get a volume increase of 1bel (10dB).
Also, you are missing the use of cabs, how many speakers, what size and sensitivity they are.
I cart my SVT and 810 to and from gigs because:
A) I love the sound
B) I love the power
C) I lift with the legs and my not-so-great back is fine
(I'm no shrinking violet either).
- Will
(your friendly physicist)
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12-15-2011, 09:49 AM
| | Registered User | | Join Date: Nov 2011 Location: Grand Rapids Michigan | | Quote:
Originally Posted by i_got_a_mohawk You are talking about bels (and decibels), which are on a log scale. Power scales linearly.
100 watts is 3dB louder than 50 watts
200 watts is 3dB louder than 100 watts
400 watts is 3dB louder than 200 watts etc etc
You need a 10x power (W) increase to get a volume increase of 1bel (10dB).
Also, you are missing the use of cabs, how many speakers, what size and sensitivity they are.
I cart my SVT and 810 to and from gigs because:
A) I love the sound
B) I love the power
C) I lift with the legs and my not-so-great back is fine
(I'm no shrinking violet either).
- Will
(your friendly physicist) | Physicists unite!
I also schlep a all tube head and 810 cab to shows. Mine is even heavier than a SVT rig. When you know you have the sound that you want, its worth carting around the gear. |
12-15-2011, 09:51 AM
| | Registered User | | Join Date: Feb 2005 Location: Edinburgh & Dundee, Scotland | | | Thats' the way I see it too.
As long as you are able (have no health issues for example), then why the heck not!
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12-15-2011, 09:53 AM
| | Registered User
Owner, Bill Fitzmaurice Loudspeaker Design | | Join Date: Sep 2004 Location: New Hampshire | | Quote:
Originally Posted by Mook Not quite. In in the laws of Physics and Sound.
| Not quite, no. Precisely, yes. I believe you are confused here as to how the laws of physics and sound apply in this case. |
12-15-2011, 09:54 AM
| | Registered User | | Join Date: Nov 2011 Location: Grand Rapids Michigan | | Quote:
Originally Posted by billfitzmaurice Not quite, no. Precisely, yes. I believe you are confused here as to how the laws of physics and sound apply in this case. |
Didnt you hear about the new laws of physics?  |
12-15-2011, 09:55 AM
| | | | Us tube amp owners are not interested in volume. As already stated... Tone is where it's at.... |
12-15-2011, 09:56 AM
| | | | I use a Walkabout, which is 13 lbs. It's as close to tube as I can get and still keep my lower back intact. The compromise is well worth it. |
12-15-2011, 10:02 AM
| | Registered User | | Join Date: Mar 2007 Location: White Plains | | | Another issue would be clean headroom. In order to get a bass loud enough with a 100w amp for most gigging situations (if you could even gig with that little), you'd need to crank it up. By doing that, it's going to break up and start overdriving. Not everybody wants overdrive...
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12-15-2011, 10:31 AM
| | | 
I used an SVT with a 6x10 classic cab for years.
It was stage room, not weight that made me stop.
Gigs have become smaller, the last few years.
I needed to get in and out fast, with something more light weight.
P S nothing sounds as good and a 300 watt tube head, and the right cab. | | Thread Tools | Search this Thread | | | | 
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