![]() ![]() These particular converters are sadly a bit more problematic than that. The OPA828 I am using is very excellent and I think it is suitable for this circuit. We plan to eventually add a cascode to allow for a larger swing. The power supply voltage is limited to ☒0V or less because the board of the small output amplifier that I made earlier is used and the cascode of the op amp is omitted. ![]() My drive circuit (OTA?) uses the power supply current of the operational amplifier used in Alexander amplifiers etc. Your method of having a diode in parallel with the sense resistor to hold enough current even in the off-side transistor might be a good approach. Therefore, Icn * Icp = constant does not hold true, but it is OK as long as there is no cutoff. Since it is difficult to determine the bias current by calculation, it is possible to adjust the value of R2.ĭiode-connected Q9 and Q10 deviate from the exponential function characteristics due to parasitic resistance and other factors when a large current flows. ![]() Mac users on Silicon devices will need to run it through Rosetta, unfortunately.The ratio of the output stage bias current and the reference current flowing from Q1 to Q2 is determined by the ratio of the saturation currents “Is” of the C5198/A1941 and TTC004/TTA004. Supported plugin formats are VST, AAX, and AU. Having a plugin full of guitar-ready effects paired together with such thorough guitar and bass amp modeling makes for a killer free rig.īIAS FX 2 LE is available for Windows and Mac computers. From personal experience, I can vouch for the power of a modeled Mesa Boogie absolutely destroying a 303 bass line.īIAS FX 2 LE is a great companion to the previously covered Neural Amp Modeler. It isn’t just suited for guitars either, as the different tonal properties evident in each amp can make for lovely inspiration when dialing in synth or keyboard sounds. ![]() Pairing an IR loader with BIAS FX gives you quite a versatile combination. The recently covered MIKKO2 by ML Sound Labs or NadIR from STLTones both make great options. If there is one weak area for BIAS FX 2 LE, it is the cab modeling, I’ve been an on-and-off BIAS user for years, and I end up just loading my preferred IRs or using a different cab sim. There are options for overdrive, distortion, modulation, delay, and reverb. The cabs match up with the selection of amps and come with a variety of mics to select from.īIAS FX 2 LE’s included effects are typical of what you’d expect for guitar processing. The other amps are likewise famous examples, like a boosted Vox AC30 or Roland JC120. There are amps to cover cleans, mid-gain, and high-gain.įamous amps, like the Marshall JCM800 and the Mesa Boogie Dual Rectifier, are present. What is on offer is good enough for most scenarios you can dream up for various genres. Guitarists, bassists, and folks that just love distortion can all grab Positive Grid’s BIAS FX 2 LE for free for a limited time.īIAS FX 2 LE is a slimmed-down version of the full version and comes with a much smaller assortment of amps, cabs, and effects. Nothing ushers in the weekend better than a free plugin. Positive Grid offers the BIAS FX 2 LE guitar processing software as a FREE download for a limited time. ![]()
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