Line 6 Spider IV Series Guitar Amp Review

Updated on May 26, 2016
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Guitar Gopher is a guitarist and bassist with over 30 years of experience as a musician.

Line 6 Spider IV Series Guitar Amps are among the best digital modeling amps in the world today.
Line 6 Spider IV Series Guitar Amps are among the best digital modeling amps in the world today.

Line 6 Guitar Amps

Line 6 is an innovator in the digital modeling guitar amp world, and the Spider IV is the flagship of their lineup. These are flexible, powerful, great-sounding guitar amplifiers capable of capturing tones from just about any genre of music you can imagine.

There is a good reason the Line 6 Spider IV has become the go-to amp for working musicians in cover bands, and hobby players looking to cop a wide array of sounds.

If you've been around the block a bit like I have, you might remember the dawn of the Line 6 brand. You also might remember not being entirely enamored with digital modeling technology back in the day, especially when it came to emulating tube distortion and overdrive.

That didn't last long. Line 6 knocked it out of the park with their ground-breaking Pod digital amp modeler in the late 1990s, and put to rest any concerns many veteran musicians had over the viability of digital technology.

When it came to practice, recording and even live performance, the Line 6 Pod opened up new territory for guitarists looking for fresh sounds.

Today, Line 6 has carved its name among the best guitar amp brands in the world. The Spider IV, capitalizing on the legacy of Line 6 advancements that came before it, is the ultimate weapon in the digital modeling world.

Spider Series Features

It goes without saying that you should expect great sounds from a Spider IV guitar amp. I've been really impressed with them over the past several years and, as someone who was initially resistant to digital modeling technology, I can say I finally get it.

But the Line 6 experience is about more than just amazing sounds. These amps are packed with features, many of which you won't find in other brands. It's like having a powerful digital mulit-effects processor combined with a great guitar amp, all in one unit.

Here are a few highlights of the Spider lineup:

  • Legendary Amp Models: Spider IV amps come packed with different amp models to help you grab your favorite sounds. These are models of well-known amps you've heard of, and Line 6 does a great job of emulating some classics.
  • An Array of Effects: Up to 20 Smart FX, programmable and very powerful for recording and live situations.
  • Amazing Presets: Line 6 Spider amps come with up to 300+ artist-created presets, and 200 song-specific presets. If you still can't find something you like, you can program up to 64 of your own.
  • Manual Mode: Just want to twist some knobs like the thing is a normal gosh-darned amp? You can do that too in Manual Mode.
  • Celestion Speakers: Many Spider models features Celestion speakers, one of the top names in the industry for decades.
  • Foot Controller Compatible: Line 6 features several different foot controllers that are compatible with their Spider IV amps. You know, so you don't have to stand there onstage twisting knobs and punching buttons during a song.
  • Spider Online: Spider Online is perhaps the most stunning feature of these amplifiers. Connect to the internet and find guitar lessons, tracks to jam along with and updated tones for your amp.

Here's a look at the individual amps:

Spider IV 15 1x8 Combo

  • 15 Watts
  • 8-inch Custom Speaker
  • 4 Amp Models
  • 6 Smart FX
  • 4 Programmable Channels

This is a great little amp for practice or jamming at home, and a pretty good choice for beginners. It has limited features compared to its big brothers, but certainly enough going on to serve in these situations. If you are a veteran Line 6 player you may want to grab the Spider 15 for practice and low-level jamming. If you're a newbie, this is a great place to start.

Best For: Newbies, or experienced players looking for a solid practice amp.

Line 6 Spider IV 15 Front Panel
Line 6 Spider IV 15 Front Panel

Spider IV 30 1x12 Combo

  • 30 Watts
  • 12-inch Custom Celestion Speaker
  • 12 Amp Models
  • 7 Smart FX
  • 4 Programmable Channels

Even though this 30-watt combo only has a few more features than the 15-watt version, moving up to a full 12-inch speaker is a big deal. For many young guitarists, the Spider IV 30 may be their first "real" amp. It doesn't quite have the power for jamming with a full band, but it would make an outstanding practice amp.

Don't forget: With the 15 and 30-watt amps you still get access to Spider Online.

Best For: Guitarists looking to upgrade from a beginner's amp to their first real amplifier. Hobbyists looking for a minimalistic amp, while still keeping some of that Spider vibe.

Spider IV 75 1x12 Combo

  • 75 Watts
  • 12-inch Custom Celestion Speaker
  • 16 Amp Models
  • 20 Smart FX
  • 300+ Artist-created Presets
  • Nearly 200 Song-based Presets
  • 64 User-programmable Presets
  • 4 Channels

Depending on what kind of band you're in, this amp may have enough power for rehearsals and gigs. However, if you jam with a heavy-handed drummer or another guitarist with a 100-watt tube stack, you might find yourself struggling to be heard.

One the other hand, if you know you're going to mic your amp, the 75 certainly has the features to perform in any live situation. With the full range of effects and amp models, you won't be lacking for tones. It would be a lot easier to carry than a larger amp, too!

Best For: Gigging musicians who mic their rigs, and/or won't be drowned out by unruly drummers and big amps. Hobby players who want all the Line 6 features but don't need all the power.

Learn More About the Line 6 Spider IV

Spider IV 120 2x10 Combo

  • 120 Watts (Stereo)
  • 2 x 10-inch Custom Celestion Speakers
  • 16 Amp Models
  • 20 Smart FX
  • 300+ Artist-created Presets
  • Nearly 200 Song-based Presets
  • 64 User-programmable Presets
  • 4 Channels

Pushing 120 watts of power, you're certainly going to have the muscle needed to be heard in a band situation. And, you'll have the full array of Line 6 amp models and effects. But what's up with the 10-inch speakers?

Ten-inch speakers tend to be a little punchier than 12-inch, and I've known some guitarists who have preferred 4x10 cabinets over the traditional 4x12. In this context, guitarists who are really tuned in may notice a difference, but honestly it's nothing I'd lose sleep over. Line 6 wouldn't have designed this thing with 10-inch speakers if they didn't think it sounded good.

Best For: Gigging musicians. Veteran guitarists. Basement and hobby players.

Spider IV 150 2x12 Combo

  • 150 Watts (Stereo)
  • 2 x 12-inch Custom Celestion Speakers
  • 16 Amp Models
  • 20 Smart FX
  • 300+ Artist-created Presets
  • Nearly 200 Song-based Presets
  • 64 User-programmable Presets
  • 4 Channels

This amp has all the positive points of the 120-watt version, bumped up to 150 watts and with a pair of 12-inch Celestion speakers. It's a serious weapon for gigging guitar players who need to nail a wide range of different sounds in the same set. Cover band guitarists will love this thing, especially paired with one of the Line 6 foot controllers.

Aside from your guitars and a few accessories, this is all you need to bring to a gig!

Best For: Working guitarists. Guitarists who need (or want) a lot of power, and a wide range of different sounds.

Spider IV HD150 Head

  • 150 Watts (Stereo)
  • 4 x 12-inch Custom Celestion Speakers (When paired with Line 6 Spider 412 Cabinet)
  • 16 Amp Models
  • 20 Smart FX
  • 300+ Artist-created Presets
  • Nearly 200 Song-based Presets
  • 64 User-programmable Presets
  • 4 Channels

Some gigging musicians like the idea of simplifying their rig as much as possible. As you've seen above, Line 6 has several combo amps in their Spider IV Series that make that possible.

On the other hand, some of us never really outgrow that need to reach out at chest-level and twist knobs. If that's you, you might just need a half stack! Hey, I can relate.

The HD150 head pairs perfectly Spider 412 cabinet for the ultimate in power, projection and flexibility.

Best For: Guitarists who can't live without a half stack!

Line 6 Spider IV HD150 2x12 Combo
Line 6 Spider IV HD150 2x12 Combo

Which Line 6 is For You?

It should be fairly obvious which amps are best for which situations, but remember that you need to play what inspires you.

If a half stack inspires you, or if you're a newbie who has the means to start out with a more advanced model, go for it!

Guitar playing is supposed to be fun, and Line 6 amps sure deliver in that regard. With so many models, effects and presets to explore it's hard to imagine you'd ever get bored.

But, if you do, hop on Spider Online and find some new sounds!

Good luck picking out your Line 6 Spider IV Guitar Amp!

Choose your Spider!

Which Line 6 Spider IV Guitar Amp do you like best?

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Similar Guitar Amps

Check out some of Line 6's competitors! The Spider series may have set the stage, but feature-packed amps with digital technology are now found in the lineups of many major brands!

Peavey VIP Series

  • Peavey VIP amps take the modeling idea and turn it into something the industry has never seen before. These are electric guitar, acoustic guitar and bass amps, all in one package! There are three models in the VIP series, ranging from practice worthy to gig worthy.

Fender Mustang Series

  • Fender amps are some of the best American-made guitar amps in the world, and their Mustang Series guitar amps have been a big hit since they arrived on the scene. Does Fender have what it takes to unseat Line 6 as kings of the digital modeling universe?

Marshall MG Series

  • If you've been around guitars for any amount of time, you know Marshall. The MG Series consists of some really cool solid-state amps with digital-effects technology. If you want something simpler to handle, but still like the idea of digital effects, these might be the amps for you.


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