EarthQuaker Devices Bows Germanium Preamp LiveSPICE (Calibrated)

• This is my second and (probably) last follow-up of Rangemaster-like circuits. The EarthQuaker Devices Bows Germanium Preamp. I decided to do this pack with LiveSPICE instead of LTspice to also learn the workflow of creating calibrated captures using the former. And what a breeze! Waiting for these 20 training wavefiles to output in LTspice would probably take a few hours. Instead it took like 5 minutes this time :) Training files were rendered with LiveSPICE settings set to 8x oversampling and 64 iterations for the highest quality possible. • Sound character: Unlike the EQD Arrows, which I did last week, this one is actually very similar sound-wise to the Rangemaster but with a small twist. Setting the TONE switch to the "Full" position lets more bass to pass and be amplified, which makes the overall tone much more saturated and bold, ideal for crunchy rock stuff or chasing that Tony Iommi tone. Placing it between an overdrive pedal and the amp also works really well. • Settings: The whole tonal range of the pedal is covered in the included captures. The pedal has a two-position TONE switch and a LEVEL knob. The included settings sweep the LEVEL knob from 1 to 10 in increments of 1 (rotational ratio; not o'clock!) for each of the two switch positions. Depending on your needs, set the LEVEL from below unity to a lot more than that. Unity gain is around LEVEL 2. It's highly recommended that you use these captures with calibrated input and output enabled and correctly set up to get the true character of the pedal (more info below). • Calibration: Calibration metadata is already embedded in the NAM files. Details: Input: +7.17 dBu ≘ 0 dBFS | Output: +17 dBu ≘ 0 dBFS You only need to enter the headroom of your audio interface's input in dBu inside your NAM host. • Slightly technical info: The OC139 NPN germanium transistor used in the original pedal was substituted with the AC127 NPN germanium transistor model included in LiveSPICE. It shouldn't make much, if any of a difference. The bias resistor was set at 1.1 kΩ for optimal operation. Online schematics suggest a 100 Ω resistor but that value is too low to make sense, to the point it wouldn't output any signal at all. ⚠️ Note: These captures are (input AND output) CALIBRATED! Preferably use an amp capture with calibrated input after them. If you don't know how to set up calibrated NAM chains watch 2dor's tutorials "𝗡𝗔𝗠 𝗰𝗮𝗹𝗶𝗯𝗿𝗮𝘁𝗶𝗼𝗻 & 𝗰𝗮𝗹𝗶𝗯𝗿𝗮𝘁𝗲𝗱 𝗽𝗿𝗼𝗳𝗶𝗹𝗲𝘀: 𝗾𝘂𝗶𝗰𝗸 & 𝗲𝗮𝘀𝘆 [𝟮𝟬𝟮𝟱]" & "𝗦𝘁𝗮𝗰𝗸𝗶𝗻𝗴 𝗰𝗮𝗹𝗶𝗯𝗿𝗮𝘁𝗲𝗱 𝗡𝗔𝗠 (𝗡𝗲𝘂𝗿𝗮𝗹 𝗔𝗺𝗽 𝗠𝗼𝗱𝗲𝗹𝗲𝗿) 𝗽𝗿𝗼𝗳𝗶𝗹𝗲𝘀" on YouTube OR read the "𝗡𝗲𝘂𝗿𝗮𝗹𝗔𝗺𝗽𝗠𝗼𝗱𝗲𝗹𝗲𝗿𝗣𝗹𝘂𝗴𝗶𝗻 𝘃𝟬.𝟳.𝟭𝟮 𝗶𝘀 𝗿𝗲𝗹𝗲𝗮𝘀𝗲𝗱" blog post on the Neural Amp Modeler website. Of course you are free to experiment! Using the Raw option will also preserve the unit's output that is relative to your input signal or just use whatever levels you like more! The calibrated options will just give you the results that are closest to real life. ⚠️ Note 2: These captures are NOT derived from the physical hardware but from circuit simulation done in a SPICE environment. I just want to be transparent about that and not mislead people. Of course that doesn't mean they can't sound just as good, provided they are done correctly.