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- 1). Connect a 1/4-inch jack cable to your guitar. Connect the other end to the input jack. Do not connect any of your effects pedals. When tweaking amp tone, it is preferable to connect directly to the amplifier. The pedals, even when turned off, can alter the tone of your guitar and mislead you when adjusting tone settings. Bypassing them reduces this risk.
- 2). Turn the "Master" dial to zero on both channels. The Dual Rectifier amp has two channels, one for clean sounds and one for distorted sounds. Faulty cables can cause an amp to buzz when turned on. By turning the "Master" dials to zero, you eliminate the risk of feedback or unexpected loud noises when you turn the amp on.
- 3). Turn the "Power" switch on but leave the "Standby" switch off for two minutes. This configuration delivers an attenuated current to the tubes, allowing them to warm up gradually.
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Tweak your Mesa to achieve a sound similar to Slash from Guns N Roses.Kevin Winter/Getty Images Entertainment/Getty Images
Turn the "Standby" switch on. - 5). Flick the "Channel Select" switch to the up position. This engages the "Vintage" channel, which has a lower output level. Although Marshalls are capable of some high-gain tones, the dual rectifier configuration of the Mesa Boogie amp makes them a lot "hotter" sounding than typical Marshalls, so you need to temper the gain of a Dual Rectifier to emulate a Marshall tone.
- 6). Turn the "Bass" dial to around 30 percent. The Mesa Boogie Dual Rectifier has a distinctively powerful bass element to its sound, while a Marshall is much more "toppy" by comparison.
- 7). Set the "Treble" to around 50 percent.
- 8). Set the "Mid" to around 20 percent. This will slightly temper the depth and darkness of the natural Dual Rectifier tone without making it overly "tinny."
- 9). Turn up the "Master" dial to your preferred level. Play your guitar and listen to how it sounds. Guitars all have different tones, so you may need to slightly tweak the tone settings of the amp to compensate for the natural tonal profile of your instrument. For example, if you play a Gibson Les Paul, you will have a lot of natural low-end presence. In which case, take the "Bass" dial to around 25 percent.
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