In using a guitar amp, it's important to know how to manipulate the amplifier to achieve a number of different effects, including a clean or dirty sound. Learn about using the bass and treble knobs on an amp with help from a professional guitarist in this free video on guitar amps.
A 10 X 13 envelope (must be less than 1/4 inch thick) is considered a flat and costs 80 cents for the first ounce and 17 cents for each fractional ounce after that up to 13 ounces.
â¢ Priority Mail pricing ranges from $ 5.75 â $ 166.75 at retail. â¢ Priority Express Mail pricing ranges from $ 16.95 â $ 460.25 at retail. â¢ For both Priority Mail and Priority Express Mail, flat rate pricing is based on the envelope size or the box volume.