Laney GH100L

Laney GH100L

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GH100L, Tube Guitar Amp Head from Laney in the GH series.

6 user reviews
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Laney GH100L tech. sheet

  • Manufacturer: Laney
  • Model: GH100L
  • Series: GH
  • Category: Tube Guitar Amp Heads
  • Added in our database on: 06/17/2003

We have no technical specifications for this product
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Laney GH100L user reviews

Average Score:4.7( 4.7/5 based on 6 reviews )
 4 reviews67 %
 2 reviews33 %

Hatsubai's review"JCM800 tones on a budget"

Laney GH100L
For some reason, Laney doesn't get talked about that much. The GH100L is a 100 watt Marshall-esque amplifier complete with a switchable boost, effects loop, switchable bias, resonance control and slave out. It's not exactly a great looking amplifier, but it does that lightly modded JCM800 tone in spades. They're also fairly reliable to boot.


Laney seems to have built an amp to directly compete with the modded JCM800 style of amplifiers, and they didn't do a bad job. The footswitchable boost enables another gain stage to help kick the amp up a notch. The resonance knob helps give the amp some more shaping of the low end, and the effects loop is a huge plus.


As we all know, the sound is the number one thing when it comes to an amplifier. The clean tones on the GH100L are somewhat dismal. You'll need to plug into the additional jack to get a decent clean tone, and when you do, the high gain sounds will be lacking. However, this amp wasn't exactly built for clean tones. The main thing it was going for was that hot rodded Marshall sound. Even with the boost, the amount of gain isn't a ton. Don't expect to get 5150 levels of gain with this amplifier. Instead, it's more like a typical early modded Marshall sound similar to Lee Jackson and the such. Personally, I felt I had to boost it to get the tone I wanted. Once boosted, the thing really did come alive, especially at lower volume levels. The switchable bias to 5881/6L6 tubes also helps give it another flavor of that Marshall sound. With the 5881/6L6 tubes, you can get a nicer bottom end and bigger sound. Your midrange shifts a bit, and it sounds quite a bit bigger. I keep mentioning that this amp is a good JCM800 alternative, and it is; However, I felt that the JCM800s just sounded a bit more "alive" than this amplifier. I'm not sure if it's due to the transformers, effects loop or what, but it's just something to keep in mind.


Anyone looking for a lightly modded JCM800 tone on a budget should definitely check out the GH100L. For the used market price, this amp is a serious contender to the other Marshall clones out there. While I felt it doesn't sound quite as good as an oldschool JCM800, it's surely close in terms of overall tone. On top of that, they're fairly reliable, so touring shouldn't be an issue.
Audiofanzine FR11/05/2008

Audiofanzine FR's review

Laney GH100L
(Originally written by ben_du_02/translated from Audiofanzine FR)

100-watt all-tube amp with high and low gain inputs. The front panel settings are very simple and effective: one resonance switch, one presence control to boost high frequencies, bass, mid and treble controls, switchable gain controls and one master volume. But I must say that one channel is not enough. Perhaps some people would also like to have a reverb???

On the rear panel you'll find an effects loop, a slave input for an external preamp and a slave output to use only the preamp of the unit. You also have plenty of speaker outputs with different impedances.

I give it an 8 because it lacks a second channel.


As I already explained, the amp is not complicated at all, it is actually very easy to use. The reduced number of settings (no noise gate or reverb) doesn't mean the amp isn't versatile... On the contrary, its flexibility surprised me.


I play all sorts of music styles from Hendrix with my Strat, to fat blues with my Les Paul, to Children of Bodom or Kalmah with my ESP.
The amp can handle anything without a sweat... but be careful with the presence knob because it tends to overemphasize the high end.


I like the amp because it sounds great (even at low volumes), it's rugged and easy to use.

I miss a second channel to be able to toggle between a big distortion sound and a clean sound... That's why I use an A/B box to switch to my old Line 6 amp for clean sounds.

I don't like: the price, I guess I won't be the only guitarist around using this amp!

pimpf's review (This content has been automatically translated from French)

Laney GH100L
Tube amp: 4 * 12AX7 preamp in which to drive and a 4 * 6L6 power

Power: 100W

Single channel with a drive ("additional distortion") Snap / disengage

Hi entries with a boost of 6 dB (recommended for guitars with single coil) and Lo (no boost, rather for humbuckers).
Hp output on the back in different impedances.
An effects loop with mix knob (different use depending on the setting: insert or side chain)
A footswitch input to start the drive

Resonance (on / off)
B / M / T


Very easy to use
Master button is very sensitive early in the race, attention ears!

Beware of spare parts and maintenance because the amp is apparently more important.


The amp is single channel so you can:

or play with little gain and start the drive to skiing: it has a crunch and distortion rock / hard
or play without saving and start the drive for a crunch
is to gain in depth and the drive to the bottom: then we have a big metal saturation

Personally, I think this amp is without concessions, ie it gives the essence putting all thoroughly. It then approaches a triple X sounds. For cons, the downside is that you do not have a clear sound.

The grain is beautiful, does not bleed like a Marshmall, the dynamic is excellent, the settings effective without being excessive. Good clear sound as well.


I bought this amp a year ago and a half to a friend who had acquired it second hand. I had many problems with a priori but the amp had been hacked by the original owner so I do not know what part due to the amp and that attributable to the original purchaser.

What I like most: his drive to gain + background really fabulous
What I like least: its lack of versatility. Ideally, the same thing in two channels

The report his / price is excellent

I turned instead to a double or triple so keep that channel or head saturation and another in the clear

pukhammet's review (This content has been automatically translated from French)

Laney GH100L
All lamps, clear characters have already been exposed
100 W in 1 or 2 X 16, 8 or 4 ohms (dc good for all types of hps!)
Basic settings,

MONO CHANNEL (you can not use it without too many effects pedals, unless you take the time to change the setting by hand, from ent saturated, for example, but it was good at home! )


Config play: in tt and tt 7 pots and 4 buttons.

This gives the sound you want easily, if you know well (but that's always the same thing!)

WARNING this is not an amp is to play in his room! 100 w lamp, ca spits at level 2 master volume and as such an amp needs to be pushed hard to show its value, it is perfect for a repeat with a drummer's arm lumberjack or concerts j'usqu'à about 500 people.

Warm clear sound, a bit too if the setting was not done very precisely, a good gloss (Resonance knob on or off, nice!)
equalizer operates much of the sound, unlike many amps.

Its super saturated appreciable crunch blues with the saturation type thrash metal (fuckin'talica!) What a little fatty for my taste the crunch.

Manuel not know ...


I play with pieces ranging from gypsy jazz to trash, and I read very satisfied, but if the clean sounds are good, its strong point is still the fat saturation, it is dug in media or not.
I jou with a yam, a foot zoom gfx 5 and a pod 2.0, I plug my even strtacoustique it from time to time and the sound is great!

attention, for the home studio, do not transplant before the microwave cabinet with this amp, it emits a light breath, but still hard to make them disappear after registration.


Over the past year
strong point sounds different and good quality
weakness: weight and size (15 kg!), single channel

Exellent value for money for my style of play, maispour the same price, you can get clean sounds etcrunch better quality amp with a little more neutral.

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  • Laney GH100L
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  • Laney GH100L

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Other names: gh 100l, gh100 l

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