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Yamaha BBT-500


Jazz Ad

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Posted

class a: grid bias and alternating grid voltages such that plate current

flows continuously throughout the electrical cycle.

 

class ab: grid bias and alternating grid voltages such that plate current

flows appreciably more than half but less than entire electrical cycle.

 

class b: grid bias close to cutoff such that plate current flows only during

approximately half of the electrical cycle.

 

class c: grid bias appreciably greater than cutoff so that plate current flows

for appreciably less than half of the electrical cycle.

 

class d:

- Analog-controlled : Switching amplifiers with an analog input signal and an analog control system. Normally some degree of feedback error correction is present.

- Digitally controlled : Amplifiers with a digitally generated control that switches a power stage.

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Posted

Originally posted by Jazz Ad

class a: grid bias and alternating grid voltages such that plate current

flows continuously throughout the electrical cycle.


class ab: grid bias and alternating grid voltages such that plate current

flows appreciably more than half but less than entire electrical cycle.


class b: grid bias close to cutoff such that plate current flows only during

approximately half of the electrical cycle.


class c: grid bias appreciably greater than cutoff so that plate current flows

for appreciably less than half of the electrical cycle.


class d:

- Analog-controlled : Switching amplifiers with an analog input signal and an analog control system. Normally some degree of feedback error correction is present.

- Digitally controlled : Amplifiers with a digitally generated control that switches a power stage.

 

Okay, I'm going to sound really stupid now, but can you please translate that into English? :D:o

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Posted

Originally posted by Jazz Ad

Another one jumps in the Class-D bandwagon.

500 W @ 2 ohms, available with 1x10 or 1x15.


BBT500-110_Enlarged.JPG

 

 

I've been itchin' for someone on here to review that head.

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Posted

 

Originally posted by beam




I've been itchin' for someone on here to review that head.

 

 

+1

I wish the knobs didn't look like chrome electroplated plastic though.

  • 4 years later...
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Posted

I love mine. After a few years of tone searching I'm hard pressed to want much more.

 

Though I haven't played through a TC Electronic RH450/Staccato, they're the only amps that are as full featured and flexible as this rig.

 

Sadly discontinued and under purchased, the 110 extension cabs compete with the best of 'em and you can lock 2 together for a crossed over true bi-amped rig.

 

It's really done me well and pumps loads of juice with an 8 ohm cab and even more through 4.

 

The parallel FX loop isn't my thing, and I'm not a fan of some of the sounds I've heard through the headphone out, but to be fair if the only thing that is really giving me GAS is the Mesa Walkabout, TC Staccato/RH450, Phil Jones Six-Pack, AI, EA, or TecAmp, then Yamaha certainly have a hit.

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