sunn beta preamp pedal Omega Lead - Guitar pedal based on Sunn Beta Lead – Global Music Imports
SKU: 73151581455
sunn beta preamp pedal

sunn beta preamp pedal Omega Lead - Guitar pedal based on Sunn Beta Lead – Global Music Imports

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Description

sunn beta preamp pedal Omega Lead - Guitar pedal based on Sunn Beta Lead – Global Music ImportsBased on the Sunn* Beta Lead. January 2025 Update We have updated the enclosure design and styling of our pedals! The new models feature a thick, all steel enclosure with a new faceplate design. Note; Currently the pedal is shipping with the Lead Bass switch marked as "Shift". We felt this wasn't sufficiently clear, so we are waiting for a new set of panels to arrive with clearer markings, but if you're happy with this labelling, they are available to


Based on the Sunn* Beta Lead.

January 2025 Update - We have updated the enclosure design and styling of our pedals! The new models feature a thick, all-steel enclosure with a new faceplate design.

Note; Currently the pedal is shipping with the Lead/Bass switch marked as "Shift". We felt this wasn't sufficiently clear, so we are waiting for a new set of panels to arrive with clearer markings, but if you're happy with this labelling, they are available to order now. The down position is for Lead Mode, and up position is Bass Mode.

Synonymous with stoner rock and doom metal, the Sunn Beta Lead is one of the most versatile amplifiers ever designed. The unique CMOS distortion circuit generates harmonically rich distortion, which is then shaped by an active EQ circuit with extremely wide range controls. The result is an amp that can go from sparkly clean, to edge of breakup, hard rock and pure fuzz with continuous sweeps of the controls.

* Sunn is a registered trademark of FENDER MUSICAL INSTRUMENTS CORPORATION.





Product Details - Omega Lead

Controls

  • Drive and Gain - These controls set the gain of the CMOS distortion stage. On the original amp, a single, dual-gang potentiometer was used for this control, but we decided to split it into two independent controls for extra versatility. With so many different sounds available, it's impossible to give a description of their behaviour. Experiment and see what you like!
  • Bass, Mid and Treble - 3-band active tone control with a very large +-15dB sweep range. Don't be afraid to visit the extremes, as the circuit drastically changes its behaviour at the top and bottom range of motion of these controls.
  • Volume - Controls the output signal amplitude.
  • Tight - Tames the bass frequencies for a slightly grittier but brighter sound.
  • Bass/Lead - Switch between "Beta Lead" and "Beta Bass" mode. A handful of components are switched in and out, but these have a huge impact on the sound, resulting in a bassier, beefier sound (Bass), or a thinner, brighter and more aggressive sound (Lead).
  • Active Switch - Engages or bypasses the pedal with a relay (true bypass).



The original

The Sunn Beta Lead is known for two things. First, its incredible deep bass and fuzzy sound that made it so popular. Second; it's ridiculously loud.

Utilizing an integrated circuit chip designed for digital logic circuits, the engineers at Sunn Amplification designed an amplifier based on the concept of abusing a CMOS logic inverter and contorting it into a guitar amplifier. The front panel stated the phrase "Digital C-MOS Technology", and while the chips used to generate the disortion were in fact designed for digital logic circuits, they were being used to process an analog input signal, something they were never intended for.

The result was surprisingly pleasant, and the Beta Lead became one of the most iconic solid state amps ever built. Used by Kurt Cobain and The Melvins, among many others, it has an extremely wide sonic palette. This means that for those unfamiliar with the amp, it can sound straight up awful, if you don't know how to set the controls. Thankfully, it has numerous sweet spots, which range from bluesy edge-of-breakup, to rock and roll, to heavy metal and fuzzy doom.

Features

  • True Bypass with Relay switching.
  • Soft-touch footswitches.
  • Internal voltage-boost mechanism ensures circuit runs at same voltage as the original amp.
  • Rugged 16 gauge (1.6mm) steel enclosure with textured powder coat finish.
  • Solid aluminium knobs.

Technical Specs

  • Power Requirement: 9V DC, 180mA
  • Power connector: 2.1mm center-negative barrel jack
  • Dimensions: 145mm (W) 108mm (D) 61mm (H)
  • Dimensions (with packaging): 185mm (W) 130mm (D) 70mm (H)

 



About Preamplifiers

This is a preamplifier, and not a distortion pedal. We do not recommend connecting this device to the input of a normal guitar amplifier. Instead, it is best used in one of the following ways:

Connected to the Effects Return / Power Amp Input of a guitar amp

Connect your guitar to the pedal input, and connect the pedal output to the effects return. This bypasses your amplifier's built-in preamp, and the signal goes through the pedal instead.

Connected to a dedicated power amp

Some examples include the Seymour Duncan Powerstage, Harley Benton GPA-100, or the Mooer Baby Bomb.

Connect the pedal directly to an audio interface

For recording purposes, the pedal can be connected to either an instrument or line-level input on your audio interface. Using a speaker cabinet simulation plugin, such as an Impulse Response (IR) loader, to emulate the effect of a speaker cab is highly recommended.

"

Shipping Notes
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 73151581455

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Battle Creek, US
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Perfect
Color: Blue, Size: Square
Just what I needed. The size is perfect as I didn’t want anything too large to place my watches and other accessories inside near the corner of my desk. Its size is essentially 7x7, and the design is sleek compared to other organizer holders. I got the color in blue and it looks stunning with the rest of my setup. I’m unsure about other reviewers, but mine came safely and the leather walls are decently thick, so it’s not too flimsy when buttoned together which holds very securely. There are hole spaces at the bottom corners once assembled, so if you have super small items such as beads or really small jewelry, they could potentially fall out, but most of my items are large enough that won’t be of concern. If you have a wire charger near by, the holes could be used to charge your smartphone inside, which has its own practical usage. Overall, I’d definitely recommend it if you’re on a lookout for a sleek but compact organizer holder, and I personally will consider getting another one in the future for myself for other household belongings.
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Carnegie, US
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Good size for end a bedroom end table
Color: Black
Perfect size for his bed table. It holds his glasses, change and just about everything it needs to hold. And it looks nice too.
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Patricia Davis
Waukegan, US
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Beautiful item
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Absolutely love this item. It is perfect for my living room decor. It is very well made and stylish. I use it to keep track of my eye glasses.
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Really nice!
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Very attractive and more expensive looking than its cost. I have it in red, too.
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Nice Tray
Color: Black
Nice tray!
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Reviewed in the United States on October 16, 2025

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