Rumble 115 Cabinet - Rumble 800 Head Wattage Question

[BassBrass]

I hope what you meant to say was:

Gosh young people these days just don't give enough detail for the rest of us to know what they are saying!

That was my take on it. But wanted to clarify so others know what you are saying. If I was wrong, please accept my apology.

With seven decades in the body that I currently occupy, and five of those decades working as an electronics technician, my most youthful answer to your question is the same as my most elderly... it depends.

Without measuring the broadband power output of the amp with knobs at the midway point, there is no certain way to tell if halfway on the knob is higher than half power, or lower, or right on the money.

One factor that can affect this are the differences between linear pots and those with an audio taper. And then with audio taper, how much taper is involved?

Another factor to consider is if the knob was properly affixed to the shaft of the pot. Or was it rotated away from an equidistance position between pointer location when set to minimum vs maximum when installed.

I hope the additional information is sufficient.
Best Regards,
OLD Garage-Bander, with the emphasis on OLD.

So, either. It just wan't specified and I wanted the whole picture, thanks. I know you are elder and I honor that (check my avatar full pic) so I teased you by suggesting you are of the young and glib crowd. (short on detail) I realize old guys like us may be short on detail too. It took effort to learn stuff, it aint for giving away. Oral tradition in some trades was to keep your mouth shut.

 

[G-Dog]

The input level to the amp has a direct effect on power. Doubling the input signal will quadruple the output power delivered for the same knob positions.

And since the Rumble's Gain "adjusts the incoming signal level from your bass", per the manual, then it seems logical that would also affect the power delivered to the speakers for the same knob positions, right?
.

 

[Old Garage-Bander]

So, either. It just wan't specified and I wanted the whole picture, thanks. I know you are elder and I honor that (check my avatar full pic) so I teased you by suggesting you are of the young and glib crowd. (short on detail) I realize old guys like us may be short on detail too. It took effort to learn stuff, it aint for giving away. Oral tradition in some trades was to keep your mouth shut.

Most of the time I'm accused of being overly wordy. Guess you caught me on a "bad" day.
I think our avatars share something in common. We're both right-handed.

 

[agedhorse]

And since the Rumble's Gain "adjusts the incoming signal level from your bass", per the manual, then it seems logical that would also affect the power delivered to the speakers for the same knob positions, right?
.

Not for the same knob positions unless the signal was increased (as in my example earlier)

 

[JakobT]

And since the Rumble's Gain "adjusts the incoming signal level from your bass", per the manual, then it seems logical that would also affect the power delivered to the speakers for the same knob positions, right?
.

Hmm. I do think the gain settings on a Rumble does affect the speaker level to some extent, but I've never heard major changes in speaker level when adjusting the gain control. Also, a Rumble works fine with the gain level set to zero. To quote from the Rumble talk on Gain staging:

The input GAIN control on Rumble V3 is essentially a variable input pad (like Active/passive or –dB switch seen on other amplifiers). We chose this over the typical fixed gain stage with pad switch in order to take advantage of the increased dynamic compression effect of the VINTAGE and OVERDRIVE circuits that benefit from higher signal/gain levels.

This seems to mean that the gain control is at least partly there to control the signal level to those circuits.

However, I freely admit to being completely out of my depth here.

 

[G-Dog]

Hmm. I do think the gain settings on a Rumble does affect the speaker level to some extent, but I've never heard major changes in speaker level when adjusting the gain control. Also, a Rumble works fine with the gain level set to zero. To quote from the Rumble talk on Gain staging:

The input GAIN control on Rumble V3 is essentially a variable input pad (like Active/passive or –dB switch seen on other amplifiers). We chose this over the typical fixed gain stage with pad switch in order to take advantage of the increased dynamic compression effect of the VINTAGE and OVERDRIVE circuits that benefit from higher signal/gain levels.

This seems to mean that the gain control is at least partly there to control the signal level to those circuits.

However, I freely admit to being completely out of my depth here.

You and me, both, Jakob. You and me, both.
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