The Rush guitarist partners with Mojotone on a new line of versatile, hand-built guitar amps and cabs.
Lerxst amplifiers are designed to offer a diverse palette of sounds that range from crystal-clear cleans to raging arena rock sounds and everything in between, supplemented with key features like power-scaling and serial effects loops to suit the needs of the next generation of sonic explorers, all designed to Lifeson’s exacting specifications and handcrafted in the USA by Mojotone. The initial launch includes the Omega amplifier head, Chi amplifier head and combo, and an accompanying range of matching guitar cabinets.
Omega is Alex Lifeson’s signature amplifier and the flagship of the Lerxst line. This British-voiced amplifier head features footswitchable clean and lead channels with a shared 3-band EQ, meaning a consistent tonal foundation between sounds while still offering shimmering cleans, gutsy rhythm crunch, and soaring lead tones. The amplifier has a switchable 50/25 watt power section to give it an equally usable powerband on large stages as well as in small clubs and the studio as well as a high-quality serial effects loop perfect for utilizing modulation and time-based effects.
"Lifeson’s signature sounds are easily within reach with Omega, but its versatile, characterful sounds are equally useful for players looking to chase their own creative muses and sonic landscapes." In addition to its standard version, Omega will also be offered in a Limited Edition Hand Wired version for a short time.
Lifeson stated, “I’m very excited about the new, updated Omega amp. It sounds incredible and it’s very handsome – you’ll want to get one even if you don’t play guitar!”
Chi takes the growl and tone of the Omega and places it within a more compact form factor. The 30-watt amplifier is built around 6L6 tubes for excellent headroom and a clear, articulate sound and is available as both a smallbox head and a 1x12 combo amplifier. In keeping with its lineage, Chi also includes footswitchable clean and lead channels and a serial effects loop, making it equally versatile on stage or in the studio.
“I’ve used more amps than Dr. Frankenstein did when breathing life into his creature, but the Lerxst Chi is an awesome monster in its own right and one of the sweetest sounding amps I’ve ever heard,” said Lifeson. “All the great character of the Omega in a cool, compact package that you don’t have to be a seven-foot monster to carry around.”
Both amplifiers are also accompanied by a range of guitar cabinets in multiple speaker configurations, including 1x12, 2x12, and 4x12, ideal for any stage configuration or studio application. All amplifiers and cabinets are handcrafted to the highest standards with top quality components in Mojotone’s Burgaw, NC-based factory. The cabinets, head shells, and combo speaker cabinets are made of voidless baltic birch and finished with a striking race gray and red garnet levant Tolex finish for a lifetime of gigging and playing.
Omega Specifications
- 3x JJ 12AX7 Preamp Tubes
- Selectable Impedances: 4, 8 or 16 ohms
- Switchable Power Output between 50 and 25 Watts
- Two Channels (Switchable)
- Shared three-band EQ
- 2x JJ EL34 Power Tubes
- Footswitchable clean and lead channels (Can also use pull knob on Master volume)
- Speaker Outputs: 2x J¼" Jacks (16Ω/ 8Ω/ 4Ω)
- Included Lerxst Footswitch
- Inputs: 1x Instrument Jack, Footswitch
- Controls: Presence, Bass, Middle, Treble, Output Master, Channel Select, Lead Master, Input Gain
- Dimensions: (H) 10 ¾" x (W) 29" x (D) 8 ¼"
- Serial effects loop
- Weight: 44lbs
- MAP $3,495 (Limited Edition Hand Wired AmplifierHead) or $2,495 (Standard Edition Amplifier Head)
Chi Specifications
- Custom CTS Potentiometers
- Finger-jointed Baltic Birch Cabinet
- Custom built in Burgaw, NC USA
- Carbon Comp Resistors
- Starman Power Indicator Light
- Lerxst Chi One Button Footswitch Included
- Footswitchable clean and lead channels (Can also use pull knob on Master volume)
- Race Grey and Red Garnet Levant Tolex Finish
- Shared three-band EQ
- Power Output: 30 Watts
- Hand-loaded PC Board construction
- Serial Effects Loop
- USA Made Heyboer Transformers
- Mojotone Dijon Coupling Capacitors
- Selectable Impedances: 4, 8 or 16 ohms
- Three JJ 12AX7 preamp tubes and two JJ 6L6 power tubes
- MAP $1,995 (Chi Combo Amplifier) or $1695 (Chi Amplifier Head)
“There has been an explosion of guitar music within the past five years that has been incredible to witness in its diversity of sounds and players. Lerxst amplifiers provide a platform for these players that offers the power and quality of tone of the best amplifiers of the past, while also providing key features like power scaling and high-quality effects loops that reflect the needs of players today.”
For more information, please visit lerxstamps.com.
- Rig Rundown: Rush's Alex Lifeson ›
- Interview: Alex Lifeson ›
- Obsessive Progressive: Rush’s Alex Lifeson ›
- Transform Your Sound with Lerxst Chi Alex Lifeson Amp Demo | First Look ›
- Lerxst Announces Snow Dog Limited Edition Octave Fuzz Pedal ›
- Lerxst Limited Edition Wah/Blah Pedal Announced - Premier Guitar ›
Maxon OD-9 Overdrive Pedal
The Maxon OD-9 Overdrive Effects Pedal may look like your old favorite but that's where the similarity ends. Improved circuitry with a new chip yields the ultra-smooth dynamic overdrive guitarists crave. Drive and Level controls tweak the intensity and volume while the Hi-Boost/Hi-Cut tone controls adjust brightness. Features true bypass switching, a die-cast zinc case, and 3-year warranty. From subtle cries to shattering screams, the Maxon OD-9 delivers a huge range of tones.
Features
Improved circuitry with a new chip yields ultra-smooth dynamic overdrive
Drive and Level controls tweak the intensity and volume
Hi Boost/Hi Cut tone controls adjust brightness
True bypass switching
Die-cast zinc case
AC/DC operation (order optional Maxon AC210N adapter)
Product Specs
Input: 1/4" mono jack
Output: 1/4" mono jack
Power: 9V DC, 6 mA, center pin minus (not included)
Dimensions: (WxDxH) 74 mm x 124 mm x 54 mm
Weight: 580g
Fender’s Greasebucket system is part of Cory Wong’s sonic strategy.
Tone pot with Fender Greasebucket tone system:
This 250k tone pot is a standard CTS pot with a 90/10 audio taper found in all U.S.-built Fender guitars. The Cory Wong guitar uses the Fender Greasebucket system, which is added to the pot as a ready-to-solder PCB. The Greasebucket PCB is also available individually from Fender (part #7713546000), though you can use conventional electronic parts for this.
Fender introduced this feature in 2005 on some of the Highway One models and some assorted Custom Shop Strats. The Greasebucket name (which is a registered Fender trademark, by the way) is my favorite of Fender’s marketing names, but don’t let it fool you: Your tone will get cleaner with this modification, not greasy and dirty.
According to Fender, the Greasebucket tone circuit reduces high frequencies without adding bass as the tone knob is turned down. Don’t let that description confuse you. A standard Strat tone control does not add any bass frequencies! As you already know, with a passive system you can’t add anything that isn’t already there. You can reshape the tone by deemphasizing certain frequencies and making others more prominent. Removing highs makes lows more apparent and vice versa. In addition, the use of inductors (which is how a passive pickup behaves in a guitar circuit) and capacitors can create resonant peaks and valleys (band-passes and notches), further coloring the overall tone.
Cory Wong bringing the funk onstage.
This type of band-pass filter only allows certain frequencies to pass through, while others are blocked. The standard tone circuit in a Strat is called a variable low-pass filter (or a treble-cut filter), which only allows the low frequencies to pass through while the high frequencies get sent to ground via the tone cap.
The Greasebucket’s band-pass filter is a combination of a high-pass and a low-pass filter. This is supposed to cut high frequencies without “adding” bass, which has mostly to do with the resistor in series with the pot. That resistor means the control will never get to zero. You can get a similar effect by simply not turning the Strat’s standard tone control all the way down. (The additional cap on the wiper of the Greasebucket circuit complicates things a bit, though; together with the pickups it forms an RLC circuit, but I really don’t want to get into that here.)
The standard Fender Greasebucket tone system is used in the Cory Wong Strat, which includes a 0.1 μF cap and a 0.022 uF cap, along with a 4.7k-ohm resistor in series. These are the values used on the PCB, and without the PCB it looks like the illustration at the top of this column.
Push-push tone pot with preset overwriting function:
The lower tone pot assigned to the bridge pickup is a 250k audio push-push pot with a DPDT switch. The switch is used to engage a preset sound by overwriting the 5-way pickup-selector switch, no matter what switching position it is in. The preset functionality has a very long tradition in the house of Fender, dating back to the early ’50s, when Leo Fender designed a preset bass sound on position 3 (where the typical neck position is on a modern guitar) of the Broadcaster (and later the Telecaster) circuit. Wong loves the middle-and-neck-in-parallel pickup combination, so that’s the preset sound his push-push tone pot is wired for.
The neck pickup has a dedicated tone control while the middle pickup doesn’t, which is also another interesting feature. This means that when you hit the push-push switch, you will engage the neck and middle pickup together in parallel, no matter what you have dialed in on the 5-way switch. Hit the push-push switch again, and the 5-way switch is back to its normal functionality. Instead of a push-push pot, you can naturally use a push-pull pot or a DPDT toggle switch in combination with a normal 250k audio pot.
Here we go for the wiring. For a much clearer visualization, I used the international symbol for ground wherever possible instead of drawing another black wire, because we already have a ton of crossing wires in this drawing. I also simplified the treble-bleed circuit to keep things clearer; you’ll find the architecture of it with the correct values in the previous column.
Cory Wong Strat wiring
Courtesy of singlecoil.com
Wow, this really is a personalized signature guitar down to the bone, and Wong used his opportunity to create a unique instrument. Often, signature instruments deliver custom colors or very small aesthetic or functional details, so the Cory Wong Stratocaster really stands out.
That’s it! In our next column, we will continue our Stratocaster journey in the 70th year of this guitar by having a look at the famous Rory Gallagher Stratocaster, so stay tuned!
Until then ... keep on modding!
Key Features of the ZOMA
● Intuitive Control Layout: Three large knobs give you full control over Reverb Level, Tremolo Rate,and Depth
● Easy Access to Alternate Controls: Adjust Reverb Decay, Reverb Tone, and Tremolo Volume withsimple alt-controls.
● Instant Effect Order Switching: Customize your signal path. Position tremolos after reverb for avintage, black-panel tone or place harmonic tremolo before reverb for a dirty, swampy sound.
● True Bypass or Buffered Trails: Choose the setting that best suits your rig.
Three Reverb and Tremolo Modes:
● SS – Spring Reverb & Sine Tremolo: Classic spring reverb paired with a sine wave tremolo for that timelessblack-panel amp tone.
● PH – Plate Reverb & Harmonic Tremolo: Smooth, bright plate reverb combined with swampy harmonictremolo.
● PV – Plate Reverb & Pitch Vibrato: Achieve a vocal-like vibrato with ethereal plate reverb.
Reverb: Sounds & Controls
● Spring Reverb: Authentic tube amp spring reverb that captures every detail of vintage sound.
● Plate Reverb: Bright and smooth, recreating the lush tones of vibrating metal plates.
● Reverb Decay: Adjust the decay time using the REVERB/ALT SWITCH while turning the Level knob.
● Reverb Tone: Modify the tone of your reverb using the REVERB/ALT SWITCH while turning the Rate knob.
Tremolo: Sounds & Controls
● Sine Wave/Volume Tremolo: Adjusts the volume of the signal up and down with smooth sine wavemodulation.
● Harmonic Tremolo: Replicates classic tube-amp harmonic tremolo, creating a phaser-like effect withphase-split filtering.
● Pitch Vibrato: Delivers pitch bending effects that let you control how far and how fast notes shift.
● Alt-Control Tremolo Boost Volume: Adjust the boost volume by holding the REVERB/ALT footswitch whileturning the Depth knob.
The ZOMA is built with artfully designed circuitry and housed in a proprietary angled aluminum enclosure, ensuring both simplicity and durability. Like all Keeley pedals, it’s proudly designed and manufactured in the USA.
ZOMA Stereo Reverb and Tremolo
The first sound effects built into amplifiers were tremolo and reverb. Keeley’s legendary reverbs are paired with their sultry, vocal-like tremolos to give you an unreal sonic experience.
Stevie Ray Vaughan was a force of nature. With his “Number One” Strat, he drove a veritable trove of amps—including vintage Fenders, a rotating Vibratone cab, and a Dumble—to create one of the most compelling tones of all, capable of buttery warmth, percussive pick articulation, and cathartic, screaming excess. As he drew upon an endless well of deeply informed blues guitar vocabulary, his creativity on the instrument seemingly knew no bounds.
Your 100 Guitarists hosts are too young to have experienced SRV live. We’ve spent decades with the records, live bootlegs, and videos, but we’ll never know quite how it felt to be in the room with SRV’s guitar sound. So, we’d like to spend some time imagining: How did it feel when it hit you? How did he command his band, Double Trouble? The audience?
SRV was mythical. His heavy-gauge strings tore up his fingers and made a generation of blues guitarists work a lot harder. And his wall of amps seems finely curated to push as much air in all directions as possible. How far did he take it? Was he fine-tuning his amps to extreme degrees? Or could he get his sound out of anything he plugged into?
