Bergantino B/Amp at NAMM

[Munjibunga]

Did you expect anything less from an Italian engineer? ;-} Heck, even JBL's speaker terminals reflect the direction/polarity of the protons while the rest of the industry reflects the direction of the electrons. Maybe James Lansing was Italian too!

Protons or positrons? Protons are too big to flow through a wire.

 

[kjones]

Positrons? I knew Commander Data was a musician but I didn't know he was a bass player.

 

[bucephylus]

Protons or positrons? Protons are too big to flow through a wire.

Jim's reference is to the device terminals which are looking out at the wires. Electrons are the only mobile things in the wires, which are responsive to electric potential gradients.

 

[rodl2005]

Hi Rod,

When saving a "Tone Scene" to either one of the two mem locations, the following parameters are saved for future recall:

Center frequencies and gains of all 4 tone controls
Bright frequency and gain (Programmable in Program mode) if engaged during the save
Compressor settings if engaged (Comp and Gain level)
Effects settings if engaged (including effect selected - O/D, Distortion, or Fuzz, Drive and post Volume levels)

Also, the compressor is Pre Effects in the DSP architecture of the B|AMP so you can send your compressed signal into the effects channel which will help the selected effect respond more evenly over a wider frequency and dynamic range.

Hope this helps!

Jim

That'll help a lot once she comes into port.
I'll report in when I get it.
I'll probly have a few questions. ....as I'm not that computer savvy

 

[Munjibunga]

Jim's reference is to the device terminals which are looking out at the wires. Electrons are the only mobile things in the wires, which are responsive to electric potential gradients.

Electrical potential gradients - you mean, like, voltage? Anyway, I know, but he's talking about current flowing in the opposite direction (positive to negative). Interestingly, the electrons flow very slowly through a wire (in DC). In AC, they just sit there and dither.

 

[bucephylus]

Electrical potential gradients - you mean, like, voltage? Anyway, I know, but he's talking about current flowing in the opposite direction (positive to negative). Interestingly, the electrons flow very slowly through a wire (in DC). In AC, they just sit there and dither.

Yeah, it's actually a little weirder. The electrons are actually delocalized with their positions occupying essentially the entirety the wire. The perceived "flow of current" is actually a net motion of charge seen at the terminals. So, the electrons are more like the streamlines you see in a river current than the particles of water themselves.

BTW, electron velocities are close to the speed of light in both DC and AC conditions. There are some drag and scattering effects in some metals, depending on grain structure, the details of the outer valence shells, and phonon interactions. Phonons are just thermal vibrations in the metal crystal structure. Sorry if that sounds like Star Wars, but it isn't.

I believe Jim's reference to polarity definition on the coil terminals for the driver is due to the fact that coils store energy; such that the current flow lags the voltage gradient by 1/4 of the AC cycle. That behavior makes the concept of polarity arguable from different perspectives; even though the behavior is what it is. In other words, semantics.

 

[Munjibunga]

Yeah, it's actually a little weirder. The electrons are actually delocalized with their positions occupying essentially the entirety the wire. The perceived "flow of current" is actually a net motion of charge seen at the terminals. So, the electrons are more like the streamlines you see in a river current than the particles of water themselves.

BTW, electron velocities are close to the speed of light in both DC and AC conditions. There are some drag and scattering effects in some metals, depending on grain structure, the details of the outer valence shells, and phonon interactions. Phonons are just thermal vibrations in the metal crystal structure. Sorry if that sounds like Star Wars, but it isn't.

I believe Jim's reference to polarity definition on the coil terminals for the driver is due to the fact that coils store energy; such that the current flow lags the voltage gradient by 1/4 of the AC cycle. That behavior makes the concept of polarity arguable from different perspectives; even though the behavior is what it is. In other words, semantics.

The effect of the potential (signal) is near the speed of light, but the actual movement (drift) of electrons is less than an inch per hour. In AC, a particular electron will have no net movement absent a DC bias.

 

[Jazz Ad]

@Jim Bergantino When the amp was created, there was talk about a bluetooth pedalboard. Is it in the works or has it been dropped?

I still haven't bought a B|Amp mind you, the only reason being that I'm perfectly happy with my IP112ER.

 

[Jim Bergantino]

@Jim Bergantino When the amp was created, there was talk about a bluetooth pedalboard. Is it in the works or has it been dropped?

I still haven't bought a B|Amp mind you, the only reason being that I'm perfectly happy with my IP112ER.

The Bluetooth software is being written as we "speak". That will be the next software/hardware release for the B|AMP.

 

[bucephylus]

The effect of the potential (signal) is near the speed of light, but the actual movement (drift) of electrons is less than an inch per hour. In AC, a particular electron will have no net movement absent a DC bias.

Yeah, those numbers come from calculations that assume the electrons to be localized particles. That was my point when I explained that the conduction electrons each already occupy the entire volume of the wire with zero bias. The drift velocity is simply counting net charge transfer that passes through the wire. The particle concept for the electron is an overly simplified model. For one thing, it assumes ohmic behavior in the wire; which is fine, except that actually putting even a small D.C. Bias on a wire with no resistive element will lead to spectacular non-ohmic results. LOL? I would advise not doing that experiment.

 

[bucephylus]

The Bluetooth software is being written as we "speak". That will be the next software/hardware release for the B|AMP.

Awesome!

Assume the Bluetooth receiver will plug into the USB port?

 

[Doug Parent]

The Bluetooth software is being written as we "speak". That will be the next software/hardware release for the B|AMP.

I wasn't aware your amp was equipped with bluetooth to begin with. So that means there will be a pedalboard that is capable of switching between memory locations, etc?

 

[Jim Bergantino]

I wasn't aware your amp was equipped with bluetooth to begin with. So that means there will be a pedalboard that is capable of switching between memory locations, etc?

Bluetooth will be implemented in the B|AMP via Bluetooth dongle plugged into the USB port. The pedal will allow switching of the 2 Memories (Mem1 and Mem2).

 

[bucephylus]

Bluetooth will be implemented in the B|AMP via Bluetooth dongle plugged into the USB port. The pedal will allow switching of the 2 Memories (Mem1 and Mem2).

THAT is really cool. That would give me a footswitchable boost. And, that is a feature I would use.

Now, about that chorus.....

 

[Doug Parent]

THAT is really cool. That would give me a footswitchable boost. And, that is a feature I would use.

Now, about that chorus.....

Chorus, Delay, Verb. BRING IT !

 

[bucephylus]

At some point in the distant past, I did a lot of gigs with the GK MBE150E112 combo. My first foray into using a small monitor amp on stage and sending main signal to FOH. That was a great little unit that GK in their infinite wisdom decided to quit producing. It had an extremely useful footswitchable boost and chorus built in; and I used those a ton, even though I'm not much of an effects kind of player. FWIW.

 

[Munjibunga]

Yeah, those numbers come from calculations that assume the electrons to be localized particles. That was my point when I explained that the conduction electrons each already occupy the entire volume of the wire with zero bias. The drift velocity is simply counting net charge transfer that passes through the wire. The particle concept for the electron is an overly simplified model. For one thing, it assumes ohmic behavior in the wire; which is fine, except that actually putting even a small D.C. Bias on a wire with no resistive element will lead to spectacular non-ohmic results. LOL? I would advise not doing that experiment.

Soahhhhh ... are you saying my statement is incorrect ?

 

[bucephylus]

Soahhhhh ... are you saying my statement is incorrect ?

No, we are saying the same thing; just different perspectives. Your statement reflects charge transfer rates; but does not reflect actual electron motion. That's all.

 

[Scott McArron]

Bluetooth will be implemented in the B|AMP via Bluetooth dongle plugged into the USB port. The pedal will allow switching of the 2 Memories (Mem1 and Mem2).

Ok, that's a game changer for me! Was on the fence on whether I needed this until now. OD, distortion, compression, and tuner, that's my entire pedal board and it was just rendered redundant.

 

[Scott McArron]

And I'm back in with an HDN210! I've had a number of Berg cabs over the years. The IP310 was probably my favorite rig of all time, but I could never find a preamp I could fall in love with and it was mighty heavy. Now, B|Amp and HDN series? Better than I could have imagined! (And also a Noble tube preamp for that occasional extra fatness!) I'm stoked!

Edit: here's a shot with some of my TecAmp gear and a beautiful Sadowsky