If your amp has loose, sagging grill cloth there is an easy quick-fix to tighten it back up to be factory fresh. This remedy applies to the plastic type grill cloth typically found on Fender type amps. First remove the speakers from the amp and then remove the baffle. Then take a hair dryer or if you have experience, a heat gun and blow the warm air evenly over the entire baffle. The heat will tighten the grill and the sag will disappear! Be careful not to get too close to the grill especially with a heat gun. Use the heat gun on low heat settings and keep both the hair dryer and heat gun about 12 inches away from the baffle. Go slowly and check the grill during the process. If the grill feels too hot let it cool down for a moment and continue until you get the desired result. For amps with cane type grills such as a Mesa/Boogie or Marshall there is a similar procedure. Again remove the speakers and baffle from the amp. Get a spray bottle and fill it with water. Spray the grill evenly until it is saturated but not so much that water is dripping and running off of it. Just saturate the cane grill. Next repeat the same procedure as above with the hair dryer or heat gun. You can use more heat with the cane material and it will actually respond better. Again check the cane grill as you go along. Another method is in warm climates or summer months you can put the baffle outside in the direct sunlight. There will be enough heat to tighten it back up like new. Using heat on cloth grill’s as used on Vox type amps will not work. There is completely different repair and the grill actually has to be re-installed to get it to be tight again. 300Guitars Shop My shop is located at 1 Executive Dr Unit L Toms River, NJ 08755 Please feel free to email me if you have any questions or are in need of some tech work. Monday: 10am - 5pm Tuesday: 10am - 5pm Wednesday: Closed Thursday: 10am - 5pm Friday: 10am - 5pm Saturday 10am - 2pm. (I am in every other Saturday). I am also an Eminence, Mercury Magnetics, Mojo Musical Supply dealer. I do all the tech work myself so you deal directly with me. I am a one man shop and my hours can vary so please contact me to confirm that I will be open. Email me: firstname.lastname@example.org Call or text me: 848-218-0362 Shipping Info for all repair work: Please ship all repairs to: 1 Executive Dr Unit L Toms River, NJ 08755 I am currently offering all phases of guitar work which includes: Set-ups Fret dressing Re-fretting New hand cut custom bone nuts & saddles Electronics work And amplifier work which includes: Basic maintenance Bias adjustment Repairs and restorations Modifications And more.... Testimonials: David Nicholas - The 20watt amp is sounding fantastic! Delivered the goods at the gig and I'm finding cool tones all over the place with it. Love the cab w Emenince Tonkerlites too- perfect for my sounds! Makes the 12 string sound like a grand piano! Peter Lacis - I had an audition for something recently that was all about Led Zeppelin I -- my custom Pennalizer BLEW THE MINDS of the guys I was playing with. They couldn't believe the sounds coming out of that amp. That album was never in my mind when I came up with the idea....so that's yet another testament to the amazing work that you do. Scott Goldberg - I am very satisfied with the set-up, and the fast turn around. With the "lower" action it feels easier to play. I will definitely spread the word.