Plug into a Spider IV 120 for industry-leading Line 6 amp and FX modeling, dialed in tones and presets created and inspired by rock stars, and much more. The Line 6 Spider is one of America's best-selling family of guitar amplifiers.

Guitar Amplifier Models

Each model in the Line 6 Spider amp delivers the distinct tonal nuances of celebrated American, British or European guitar amps. Models were inspired by a Marshall JCM-900, Hiwatt Custom 100, 60's Fender Blackface Twin Reverb, 60's Fender Blackface Deluxe Reverb, Vox AC30 Top Boost, Divided by 13 9/15, 50's wide panel Fender Deluxe Reverb, Gretsch 6156, '68 Marshall Plexi 50-Watt, Orange AD30, '68 Marshall Plexi 100-Watt with a Variac and jumped input channels, Diezel Herbert, and Mesa/Boogie Dual Rectifier.

Piles of presets

Passionate about presets? The Line Spider IV 120 guitar amp has them in spades with over 500 in total. Beside the 300+ presets hand-crafted by 50 rock stars, and beside the almost 200 presets inspired by the best guitar songs of all time, the Line 6 amp can create and save up to 64 of your own user presets.

Dialed in by rock stars

Who do you want to sound like today? Discover the tones of your heroes in Line 6 Spider IV 120. 50 famous guitarists and bands, including Coheed & Cambria, Johnny Marr, Slipknot, and others, hand-crafted more than 300 of their signature tones and turned them into Line 6 Spider IV 120 presets—from sparkling cleans to effect-laden tones to saturated high-gain heaven.

Dialed in by Line 6

Get one-touch access to almost 200 tones based on the best guitar songs of all time—from the switchblade-swinging slapback of the 1950s to the high-gain distortion of the 2000s. Get the tones from Master of Puppets, Back in Black, Whole Lotta Love, Daytripper, Toxicity, Purple Haze, Head Like a Hole, Smells Like Teen Spirit, Crazy Train, and more.

Edit, store and share, all via computer

The Line 6 Spider IV Edit software (a free download from Line6.com) is an editor/librarian for your Spider IV 120 tones. Bask in the glow of your computer while you edit presets, create backups, and even email tones to other Spider IV players.

Smart FX

Smart FX knobs put award-winning Line 6 effects at your fingertips. Easy to use, Smart FX let you spend less time tweaking and more time playing. Quickly add or remove any amount of the 20 lush reverbs, exceptional echoes, tangy mods, and more. Make all your adjustments on the fly—all the knobs are on the front panel. Up to 4 Smart FX can be used simultaneously.

Go deeper into FX

Deep dive into your effects like never before! Every effect is fully adjustable up to 7 parameters deep, including pre- and post-amplifier routing. Sculpt your delays, mods, reverbs, pitch effects, and more with unparalleled control.

Spider FX Infusion

What's better than more effects? More effects for free! Line 6 Spider FX Infusion (a free download from Line6.com) more than doubles your amount of Smart FX. Beef up your Spider IV 120 with 28 additional overdrives, compressors, delays, reverbs, mods, and wahs. You'll have more effects than any other modeling amplifier!

Pitch effects (Smart Harmony and Pitch Glide)

Smart Harmony is Line 6's first intelligent pitch shifter. It's fast-tracking and easy to use. Harmonize using major, minor, pentatonic, whole tone, and other types of scales. (Don't worry, you don't need to know music theory to use Smart Harmony).

Pitch Glide is most effective when used with an FBV MkII foot controller. Use the foot pedal to smoothly shift your tone up or down to any interval within a four-octave range. The effect can be calibrated to semitones, or to 10-cent increments to create cool chorus/detuning effects.

Quick loop

Quick Loop is a 14-second sound-on-sound looper that's ideal for writing songs, practicing solos, jamming, and even dialing in your tone. Easy to use, Quick Loop's controls are all on the front panel. Connect an FBV MkII foot controller for handsfree control of the looper functions.

Simultaneous FX

Use up to 8 effects at the same time! Pour on the colors and textures with all 4 Smart FX, set the adjustable Boost and the Noise Gate, activate Quick Loop, and connect an FBV MkII foot controller to kick on the volume/wah pedal. How many other amplifiers can do that?

Speak up

Celestion guitar speakers are world renowned for their exceptional definition, clarity, and feel. And that's just what they give to Line 6 Spider IV guitar amp. The 2x10" Celestion custom speakers help clean tones sparkle and sing, creamy overdrives respond to the intricacies of your picking, and searing brutal tones launch themselves from the cabinet.

Manual mode

Manual mode draws a more traditional amplifier experience out of Line 6 Spider IV 120. When Manual mode is activated, all front-panel knobs work independently of one another. (Out of Manual mode, choosing an amp model may adjust the settings of the other front-panel knobs.)

Stay focused

To get the whole story of Line 6 Spider IV 120, you need to turn one around. It features a perfectly tuned three-quarter closed-back cabinet. This provides a tight, punchy, focused response that you can't get from an open-back guitar speaker cabinet.

Tune up

You'll always sound your best with the Line 6 Spider amp's built-in tuner. No need for an external tuner or additional guitar cables, this invaluable tool is integrated into the amp's front panel. Activate the tuner with the push of a button.

Window to the soul

A large, two-line LCD is your window into Line 6 Spider IV 120 amplifier. This is where you can deep dive into effects and adjust their parameters, scroll over 500 presets, see the tuner interface, name your user-created presets, get a visual representation of where your Smart FX knobs are set, and more.

Downloads and upgrades

Keep your Line 6 Spider IV 120 guitar amp up to date with an FBV MkII foot controller. Connect the Spider IV 120 to Line6.com via an FBV MkII foot controller to receiver valuable software and firmware updates and upgrades. These updates may include new features, presets, or effects.

Foot controllers

FBV Express MkII delivers handsfree channel switching; FBV Shortboard MkII is a full-on remote control. They both feature a full-sized volume/wah pedal, chromatic tuner display, bright LEDs, durable footswitches and chassis, and more. They keep you at the foot of the stage instead of tied to the front of your Line 6 Spider IV 120 guitar amp. They also feature USB connectivity for keeping your Spider IV 75 up to date. (Foot controllers not included.)