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Amp DIY

Speaker Geeks: Wiring Up a 4x12 Cab

April 19, 2017
When it comes to moving air, it’s hard to beat a 100-watt head driving a full stack. Here’s how to manage the series-parallel wiring at the heart of this classic configuration.
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Ask Amp Man: Troubleshooting an Epiphone Electar

April 14, 2017
Amp Man does a total resurrection of an old lap-steel amp riddled with puzzling dysfunction and mismatched tubes.
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Ask Amp Man: Reducing the Bass on a Fender DeVille

March 17, 2017
How to use a pedal or mod to put a 2x12’s big bottom on a diet.
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Ask Amp Man: Beware the Clean Ones!

February 24, 2017
Pristine-looking old amps are often full of dirty secrets.
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Speaker Geeks: The Lowdown on Power Handling

February 3, 2017
Here’s what you need to know to avoid blowing a guitar speaker.
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Ask Amp Man: Supercharging a Super Reverb

January 13, 2017
Six ways to beef-up the breakup on the classic Fender combo.
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Ask Amp Man: Restoring a Worn Regal’s Royal Tone

December 2, 2016
Some new components and a speaker might make an old Canadian tuber sound über.
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Ask Amp Man: Restoring Electrical Flow to Peavey Combos

November 11, 2016
Although certainly not a benchmark of tone, these amps delivered affordable reliability.
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Ask Amp Man: Fattening Up a Vox AC30C2X

October 21, 2016
Find out how redirecting resistors and adding a DPDT switch to your Brit combo will yield bigger tones and more control.
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Ask Amp Man: Upping the Gain on a Super Reverb

September 26, 2016
How to get more drive with a simple mod.
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Ask Amp Man: Taming a Marshall’s Extreme Treble

August 19, 2016
Here are a few easy ways to warm up a bright vintage Marshall head.
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Ask Amp Man: Troubleshooting a Finicky Maverick

July 25, 2016
Sudden changes in volume? Check the effects loop, sockets, and tubes.
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Ask Amp Man: Reduce Power with a Pentode/Triode Switch

June 16, 2016
How to mod a high-wattage amp for all playing situations.
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Ask Amp Man: Modding a Pro Junior for an Extension Cab

May 16, 2016
Here’s how to install a new transformer and impedance switch to use a second speaker with this little workhorse.
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Ask Amp Man: Returning a Deputy to the Trail

April 11, 2016
Intermittent problems can be caused by a variety of sources, from failed tube sockets to an arcing switch.
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Ask Amp Man: Reviving an Alamo Fury

March 2, 2016
A dead amp bought for next to nothing might—with a few inexpensive fixes—become a new workhorse.
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Ask Amp Man: Diagnosing an Ailing Blues Junior

February 23, 2016
A blown fuse can mean your amp has bigger problems. Here’s how to find them.
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Ask Amp Man: If It Ain’t Broke, Don’t Break It!

December 22, 2015
Sometimes “improving” a funky vintage amp can ruin its sonic charm.
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Ask Amp Man: Raising the Roof on a Peavey Classic

November 29, 2015
Discover tricks to increase headroom in this popular 20-watt head.
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Ask Amp Man: Upgrading a Fender Custom Vibrolux Reverb

November 11, 2015
Get beefier tones and stronger reverb from this popular reissue.
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