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Bugera 333XL Infinium 120-watt 3-channel Tube Head , $1,049.00 - Add to Cart Skip to Product Information

Bugera 333XL Infinium 120-watt 3-channel Tube Head

120-watt 3-channel All-tube Amplifier Head with Reverb, FX Loop, Variable Impedance, EQ, Lead Channel Noise Gate, Footswitch, Power Damping, and INFINIUM Tube Life Multiplier
Bugera 333XL Infinium 120-watt 3-channel Tube Head
Bugera 333XL Infinium 120-watt 3-channel Tube Head
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Bugera 333XL Infinium 120-watt 3-channel Tube Head
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Affordable Tube Tone

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Waiting for you inside the Bugera 333XL Infinium all-tube guitar amplifier head is a world of great tones. Three channels with individual gain, volume, and EQ controls feed 333XL Infinium's all-tube, Class A/B power section for a screaming 120 watts of power. Each channel is designed to give you just the tone you want for melting faces, scootin' boots, and everything in between. This XL version also includes XL switches on the lead and crunch channels. The lead features an adjustable noise gate and a master section presence control. If versatility and great tone are what you're after, then the Bugera 333XL Infinium all-tube guitar amplifier head is the right amp for you.

Bugera 333XL Infinium All-tube Guitar Amplifier Head at a Glance:
  • Infinium technology takes the hassle and expense out of tube tone
  • Dedicated tone channels make getting the right sound easy
  • Features that give you tremendous versatility
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. 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. But tubes, by nature, do wear out and die. However, 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!

Dedicated tone channels make getting the right sound easy

The transparent clean channel doesn't break up, which is great for playing jazz, country, and blues, and it works great as a power base if you're using pedals for your overdrive and distortion tones. The crunch channel gets you to that halfway dirty place you need for rock, and you can use the gain on this channel to pull out your blues and metal rhythm tones. Lean on the lead channel when you need gain, gain, and even more gain than what the crunch channel can give you. The XL switches on the lead and crunch channels offer you extended low end control while the adjustable noise gate on the lead channel gives you even more tonal control. All three of the 333XL Infinium's channels have individual volume controls and an EQ section that lets you really dig in and fine tune your tone, and the master section presence control handles the shaping of your midrange.

Features that give you tremendous versatility

The 333XL Infinium would be awesome as it stands, but Bugera made sure to put options and features at your fingertips that make your playing experience second-to-none. You get an FX loop with adjustable send and return levels that also works as a boost option, allowing you to set all three channels at the same level and control the master volume regardless of what channel you've selected. Each channel is also independently assignable to the reverb for total tone control. If you need to feed the PA or other mixer or interface, there's a line output with a dedicated level control. Variable impedance lets you match your 333XL Infinium to almost any speaker cabinet and switchable power amp damping lets you optimize the resonance of your speakers to polish off your tone. They've even included the footswitch - this amp is a superb value!

Bugera 333XL Infinium All-tube Guitar Amplifier Head Features:
  • Hand-built, 120-watt, Class A/B, all-tube amplifier driven by 4 x EL34 tubes for huge tone
  • 3-channel preamp design - clean, crunch, and lead - features 4 x 12AX7 tubes for superior versatile tone
  • Heavy-duty footswitch for channel selection, FX loop, and reverb included so you can rock straight out of the box
  • Integrated reverb is assignable for each channel to let you get just the sound you want
  • XL switches on lead and crunch channels to give you more low end control
  • Adjustable noise gate on lead channel for dialing in just the tone you want
  • Master section presence control gives you overall midrange shaping
  • 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
  • Channel equalizer sections with dedicated bass, mid, and treble controls for precise tone shaping
  • FX loop with dedicated send and return level control is ready for your pedal board
  • Line output with dedicated level control makes any sound engineer happy
  • Impedance switch lets you use virtually any speaker cabinet
  • Switchable damping lets you get the most from your speakers
  • High-quality components and rugged construction ensure long life
Get versatile and affordable tube tone with Bugera's 333XL Infinium!

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.