HEAT: You can think of this as the Naga Viper’s gain knob. When it’s all the way down, you get that classic treble booster response, that is to say a slightly dirty boost, and rolling this control up intensifies the grit until it’s a drive unit unto itself. At minimum, the stock treble booster profile sounds its best running into an already overdriven amp, but increasing the Heat softens that and adapts the Naga Viper to work better with clean amps.

BOOST: This sets the output level of the Naga Viper. According to ancient pedal texts, the classic Rangemaster design is dependent on a certain value in this position, but a small number of outliers found their way into recording studios with a value that made the circuit “a little hotter.” We have elected to use this rarer value to up the output significantly to give you more from even the most stubborn amps. When turning this knob, it is normal to hear a whooshing sound; the originals also did this, and who are we to stand in the way of tradition?

RANGE: This controls the amount of bass frequencies let into the booster. Historically, the input and output capacitors of the treble booster are tiny, which lets in very few bass frequencies and less overall gain. You can find this setting with the knob maxed. As you roll this control down, more and more bass is let into the circuit and the range is thus increased. With the Range all the way down, you experience a full-frequency booster that also increases the level of gain.

ATTN: Short for attenuate. The treble booster is a simple, straightforward circuit; it boosts what you give it. But because the originals were designed to run as a guitarist’s only effect, they don’t really take other gain devices as well as they could. As such, vital notes of the treble boost’s flavor can be easily lost in modern pedal setups, with some guitarists running one or more “always-on” devices. This control lets you tame the incoming signal down to a lower volume, which gives the circuit a little room to breathe before it does its thing.

You can use a variety of power sources to power your Naga Viper. It supports standard DC power supplies from 9 to 18 volts or a 9V battery.

Do not give the Naga Viper AC or a center-positive supply, you will void the warranty. Bad move.