One of the key differences between the preamp and power amp is their distortion characteristics. When the amp is running high, the power amp typically serves as what I like to call a fine polish to even out the imperfections of an amp. The power amp typically only shows its character when the volume of the amp is turned up, which means that most guitar players never get a chance to feel how the power amp section influences the guitar sound. Then you can simply create an amp that feels like a Marshall, but has an EQ curve similar to that of a Vox amp.
Let’s say you really like the gain structure of a Marshall, but you prefer the way the EQ of a Vox amp reacts to your playing. This offers guitar players a great deal of control. Everyone knows that the treble knob on a Mesa Boogie will not have the same curve as the treble control of a Fender Tweed. The tone stack covers the behavior of the EQ of the front panel. The more tubes in the preamp, the more distorted your sound will be. This will have the most drastic impact on the amount of distortion you get out of your amp. You can also change the number of tubes in the preamp. Do you want the tubes to generate a tight overdrive, but still want a big bottom end? Cut the bottom end in the pre section, and boost it in the post section to compensate for the decrease in low end before the tubes. By doing this you can control how the tubes will react to specific frequencies.ĭo you want the tubes to react heavily to the treble frequencies? Boost the treble in the pre section. You can alter the EQ before going into the tube section of the preamp and after. The preamp section is also the first broad EQ in the signal path after the tone controls on your guitar. By changing the tube type, you can alter the amount of overdrive your amp will generate. It consists of tubes that exercise a certain amount of compression (or distortion) on the raw output of the guitar. The preamp section determines the basic gain structure of your amp. The preamp is the first of many extra layers you can control in Bias Amp 2. With Bias Amp 2 you can adjust the amp’s internals so that you can create something that really feels authentic, or just make something that is so radically different from your own amp’s sound that you’ll want to stay in the box.
Over the years many guitarists have complained about the fact that even though a modeler sounds good they will still play their amps because it just feels nicer. This way you can alter not only the tone, but the general feel of the amp. This includes the preamp, tone stack, power amp, and the output section. Insane tweakabilityįor those who have grown tired of only being able to dial in a tone with standard amp controls Positive Grid have got the perfect answer.Īfter dialing in a ballpark tone with the amp’s front panel you can tweak parameters in the different parts of a typical guitar amp. But even if you don’t want to tweak your amp to the nth degree, the front panel controls still offer all you really need with knobs for gain, volume, and a three-band EQ along with a presence knob.
The list of amps includes iconic amplifier replications of classic amps, like a Fender Twin Reverb, a Vox AC30, multiple Marshalls, and modern amp brands like Mesa Boogie, and Soldano.Įach one of these amp models can be fully tweaked to your satisfaction. Amp modelsīias Amp 2 features a whopping 36 different amplifier models, which are nicely arranged by their sound characteristics. I’m going to subdivide the features of this powerful software, because the list is quite extensive. This allows you to tweak the sound you have in your head to perfection. From the type of preamp valves, to the output transformer.
Bias amp 2 standard software#
If you want to know more about the differences between the three software tiers you can check out this very nice overview on Positive Grid’s website.īias Amp 2 lets you dive into aspects of amp design most guitarists would consider witchcraft. For the purposes of this review I will be focusing on reviewing the elite version. Bias Amp 2 is software that’s available in 3 grades.
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