Bugera 1990 Infinium 120-watt Tube Head

120-watt 2-channel All-tube Guitar Amplifier with Reverb, FX Loop, Variable Impedance, EQ, 2-way Footswitch, and Infinium Technology
Bugera 1990 Infinium 120-watt Tube Head image 1
Bugera 1990 Infinium 120-watt Tube Head image 1
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Bugera 1990 Infinium 120-watt Tube Head
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Accessible Tube Tone

Bugera answers the call for more with the 1990 Infinium all-tube guitar amplifier head. Updated looks give way to updated performance with Infinium technology and better-than-ever sound in this new version of their famed 1990 amp. Bugera gives you pentode/triode switching for power modes and separate controls for master volume and reverb on each channel. A vintage EQ section lets you shape the bass, mids, treble, and presence of your sound. Classic British bite and tube tone are yours with the Bugera 1990 Infinium all-tube guitar amplifier head.

Bugera 1990 Infinium All-tube Guitar Amplifier Head at a glance:
  • Infinium technology takes the hassle and expense out of tube tone
  • Power-switching options give you tonal flexibility
  • Features let you dial in classic British bite
Infinium technology takes the hassle and expense out of tube tone

Sweetwater guitarists agree that there's no tone like tube tone. But we also know that the cost involved in owning and maintaining a tube guitar amplifier can be prohibitive. Solid-state amps have come a long way, but even the best amp model can't beat true tube tone, and Bugera's Infinium technology means no more compromising what you want. The Infinium circuit is designed to optimize the performance of your output tubes and distribute the load evenly between the tubes, giving you tonal integrity and reliability. By automatically adjusting current levels, aging tubes are compensated for and your tone retains that toasty, day one sound throughout its life. Tubes, by nature, do wear out and die - but when you play an Infinium amp, you'll never worry. This exclusive technology allows you to grab whatever replacement tube you have on hand and get back to playing - there's no matching necessary. In fact, now you can mix and match tubes to create your very own signature sound without the hassle and expense of buying matched pairs. And because Infinium is a bit like having your own guitar amp tech with you on every gig, you get up to 20 times more life out of your tubes. When it is time to change one out you'll know exactly where to go, thanks to the life-monitoring LED readout that keeps you in the know about your amp's health. Only Bugera makes the joy of owning and playing a tube amplifier this accessible and easy!

Power-switching options give you tonal flexibility

By giving you the flexibility of pentode/triode switching, the 1990 Infinium makes itself your go-to rock amp. In pentode mode you get the full 120 watts of British-like bite, giving you full sound and enough power to rock almost any stage. Triode mode drops you down 60 watts giving you a more musical, harmonic tone, perfect for recording when you need to pull the most tone you can from your amp. This amp gives you better sound than ever.

Features let you dial in classic British bite

With a cooler, streamlined look, the 1990 Infinium takes its place atop your cabinet in style. The clean and lead channels have their very own master volume and reverb controls, giving you total control over your tone. The onboard FX loop has true bypass and feeds a preamp section that features three ECC83 tubes that scream out pure '90s metal tone. Bass, mid, treble, and presence controls provide tools for tone sculpting and fine-tuning, and a post phase-inverter master volume control with true bypass gives you extra oomph when you need it and gets out of the way when you don't. Variable impedance options make this all-tube guitar amplifier a great companion for almost any speaker cabinet and, thanks to exceptional construction and components, you'll be rocking the handbuilt 1990 Infinium for years to come. They've even included a dual-control footswitch - this amp is a superb value!

Bugera 1990 Infinium All-tube Guitar Amplifier Head Features:
  • Handbuilt, 120-watt all-tube amplifier driven by 4 x 5881 tubes for huge tone
  • Classic split-channel preamp design (clean and lead) features 3 x ECC83 tubes for 90's metal rock tone
  • Heavy-duty footswitch for channel selection and reverb included so you can rock straight out of the box
  • Switch between pentode or triode operation for even greater tone versatility
  • Cabinet modeling recording direct output leaves the air in your tone when you aren't putting a mic on a cabinet
  • Integrated reverb with dedicated controls for each channel lets you get just the sound you want
  • Revolutionary Infinium tube life multiplier technology extends the life of your power tubes up to 20 times
  • Infinium provides incredible reliability and consistent tone without the need for expensive matched tube sets
  • Mix and match any combination of compatible tube types and brands to build your own signature sound
  • Valve life monitoring LEDs display individual defective tubes for easy replacement
  • Vintage equalizer section with dedicated bass, mid, treble, and presence controls for precise tone-shaping
  • FX loop with dedicated level control and true bypass function ready for your pedalboard
  • Impedance switch lets you use virtually any speaker cabinet
  • High-quality components and rugged construction ensure long life
Get convenient and affordable tube tone with Bugera's 1990 Infinium!

Additional Media

Guitar Amp Buying Guide

Tech Specs

Type Tube
Number of Channels 2
Total Power 120W
Reverb Yes
EQ 3-band with Presence
Preamp Tubes 3 x ECC83
Power Tubes 4 x 5881
Inputs 1 x 1/4"
Outputs 4 x 1/4"
Effects Loop Yes
Footswitch I/O Yes
Height 9.8"
Width 27"
Depth 9.7"
Weight 47 lbs.
Manufacturer Part Number 1990INFINIUM

Customer Reviews

Based on 17 reviews
Write your review


Just recieved this amp today and WOW it's amazing. Great tube amp for the price. Very impressed with this amp. Order went out the same day and I got a phone call to review the order! Amazing customer service. 2 thumbs up Sweetwater
Music background: Musician for 8 years


bottom line is this.... tubes can be changed!!!!!!!!!!!!!!!!!! this amp rocks!!!!!!!!!!!!!! right out of the box it sounded great... very hefty chassis and heavy amp. it is put together well... im not going to go over each knob , but i will say this, the clean is fantastic and bright and the lead is absolutely incredible from classic rock to metal...do listen to the non believers and the high end snobs..... if your on a budget or not, BUGERA IS THE AMP!!!!!!!!!!!!!!!!!!
Music background: professional

Bugera 1990 infinium 120 w Amp Head

I found this Amp thru month's of research looking for "THE" Amp and found this Amp. the Bugera Infinium 120 watt head. I am running this thru a 4X12 cab. I read all the reviews good and bad, and I saw a common thread. GOOD MARSHALL TONES!! Loud and powerful, I have played thru hundreds of amps thru my 35+ years, Marshall 1969 plexi , Mesa,Carvin, Fender, This is nothing like any amp I have played before. I rank it up there with my 69 Plexi, ( and I didn't pay $5,200 for it) $399.00) Right out of the box and straight in to the amp. What a rumble, Sweet clean and Hot overdrive,SMOKIN!!! this is such a good amp from country, to Metal. Buy it you wont be sorry!! Thanks to Sam Hillman, and all the other techs at Sweetwater for all there help. 2 day shipping was nice too!!
Music background: 35 + years EX

bugera 1990 infinium

ive owned the 1990 for over a year now I must say it has lived up to its name its been beat and banged in a equipment trailor and dropped hard bout three or four times.. I get great tone with half the cost sounds just like a marshall all way around. I owned a marshall dsl 40 never made it through a show with out a problem. I may power it up today and it explode but I don't expect it to. its a must buy
Music background: guitar player


I am blown away...at how this amp does at vintage Marshall tones. I thought this was used more for higher gain stuff so I never checked it out. I even ordered the 1960 Infinium first because these are the kind of vintage Marshall circuits I like. I have a 78' Marshall 2203 and a couple of DSL's. I love certain Marshall tones for what I play. The 1990 absolutely kills tone wise vs price point. If the QC issues have been fixed before the Infinium models then this is a game changer. I feel like I'm cheating on Marshall with this amp. It smokes at clean, clear tight saturation that is Very vintage sounding and dynamic. I play blues/rock/hard rock. I don't do heavier stuff. The 1990 through my 5153 G12M'd cab is a beautiful thing. It loves my Dimarzio SD's. Pure classic to hard rock Marshall tones. The clean channel with gain dimed is a beautiful JMP like experience. The Lead Channel can do low gain to mid gain nicely but really gets a meaty hard rock tone that's addictive at volume. The amps thumps in either. I haven't even used it at 120watts. 60 watts or half power is perfect with my cab and it thumps. I'm very happy with the vintage tones in this amp. I may have to buy another. It's plug and play including the power tubes. Mix and match. I'm leaving mine stock it sounds so good. I have plenty of tubes including NOS/ANOS. It sounds great out of the box.
Music background: Guitarist
See also: Amp Heads, Bugera, Bugera Guitar Amp Heads