In this two-part tutorial, Nashville amp tech Skip Sims shows you how to replace speakers in a 4x12 guitar amp cabinet.
Sims installs a quartet of 25-watt, 16 Ω Celestion G12M Greenback speakers in a vintage 1968 Marshall basketweave cab and explains how to test impedance and polarity for the individual speakers and quad set, the best techniques for mounting speakers to protect their cones, and how to wire the speakers in Marshall's classic series/parallel configuration. He also describes how to break in new speakers after they're installed.
Part One:
Part Two:
The series features three distinct models—The Bell,The Dread, and The Parlor—each built to deliver rich, resonant acoustic sound with effortless amplification.
Constructed with solid Sitka spruce tops and solid mahogany back & sides, the Festival Series offers warm, balanced tone with incredible sustain. A Fishman pickup system, paired with hidden volume and tone control knobs inside the sound hole, ensures seamless stage and studio performance.
Grover 16:1 ratio tuners provide superior tuning stability, while D’Addario strings enhance clarity and playability. Each guitar comes with a heavy-padded gig bag, making it a perfect choice for gigging musicians and traveling artists.
Key Features of the Festival Series Guitars:
- Solid Sitka Spruce Top – Provides bright, articulate tone with impressive projection
- Solid Mahogany Back & Sides – Adds warmth and depth for a well-balanced sound
- Fishman Pickup System – Delivers natural, high-fidelity amplified tone
- Hidden Volume & Tone Control Knobs – Discreetly placed inside the sound hole for clean aesthetics
- Grover Tuners (16:1 Ratio) – Ensures precise tuning stability
- D’Addario Strings – Premium strings for enhanced sustain and playability
- Heavy-Padded Gig Bag Included – Provides protection and convenience for musicians on the go
Mooer Prime Minimax M2 Intelligent Pedal boasts 194 effects models, 80 preset slots, MNRS and third-party sample file compatibility, an 80-minute looping module, internal drum machine, high-precision tuner, Bluetooth support, and a rechargeable lithium battery.
Over the last few years, Mooer has released several Prime multi-effects devices, including the Prime P1, P2, S1, and most recently in 2024, the Prime Minimax M1. Excitingly, the company is kicking off 2025 with a brand new addition to the Prime family–the Prime Minimax M2 Intelligent Pedal.
Within this small multi-effects device, a whole lot of functionality is packed in, including an impressive 194 effects models, including overdrive, preamp simulators, cabinet models, delays, reverbs, modulation effects, etc., and more. In typical Mooer style, though, the company took things a step further by offering limitless flexibility through the support of its in-house MNRS sample files, as well as third-party IR sample files. Essentially, this means that users can download additional tonal emulations and effects from the Mooer Cloud and third-party sources to the device, which they can then save across 80 preset slots.
As with some past models in the Prime series, the M2 sports a convenient touchscreen design, facilitating easy browsing through the devices banks of presets. However, guitarists are not limited to interfacing with the pedal in this way, as it also features two footswitches, both of which can be used to switch between presets in each bank. There is even a MIDI jack built into the device, enabling users to connect their MIDI controllers to extend the control functions, and the MOOER F4 wireless footswitch support is also supported. Essentially, these augmentation options facilitate additional footswitches to ensure switching preset tones is always as quick and seamless as possible within any workflow.
While the Prime M2 Intelligent Pedal is primarily designed for effects and tonal simulations, it also comes packed with an array of other useful features. For example, it contains a looping module with a hefty 80-minute capacity, in addition to 10 recording save slots to ensure that any looping creations can be kept for future use in performances. Similar to past looper modules in Mooer's products, users are also free to overdub their recordings and even undo or redo their overdubs, offering a lot of real-time flexibility for creating loop-based musical structures.
As if the addition of a looper wasn’t enough, this feature is also synchronizable with an internal drum machine and metronome, a combination that includes 56 drum grooves and 4 metronome varieties. Ultimately, it’s a reminder that Mooer clearly recognizes and wishes to solve the struggles that musicians have when attempting to produce precise loops while staying in time. Upon commencing recording, the drum machine can produce four initial beats to serve as a count-in cue, and of course, this can be combined with the device's tap-tempo control for dynamic use. Best of all, this feature can also be applied to modulation and delay effects, ensuring that they work perfectly in time with any performance.
Extra features are included to complete this all-in-one pedal, including a high-precision tunerwith fully customizable frequency ranges. Guitarists can even leverage the M2’s built-inBluetooth input support, allowing them to practice, jam, and even produce looped musicalstructures over their favorite backing tracks, band prototypes, and musical pieces.
Perhaps unsurprisingly for existing Mooer product users, the Prime M2 also boasts an impressive variety of audio routing systems. As was previously mentioned, that includes Bluetooth input, as well as industry standards such as dual-channel stereo output, perfect for stereo delay and modulation effects. It also supports headphone output for those who wish to practice in silence, and even OTG recording, which means that guitarists can record their creations directly to their smartphone whilst on the go.
Speaking of on-the-go, Mooer is continuing its recent portable-play focus with the Prime M2Intelligent Pedal, as it is fitted with a built-in rechargeable lithium battery with a battery life of up to 6 hours. Ultimately, this means that even a lack of local power sources won’t get in the way of rehearsals and live performances. Combined with the pedal’s lightweight and small build, it truly is an ideal addition to the pedalboard of any traveling musician.
Overall, the Prime M2 Intelligent Pedal is set to be an impressive new addition to the Prime series. It features augmented functionality when compared to past models, yet still in a minimalist and easy-to-use package, keeping the size small and light yet still packing in footswitches, a touch screen, and other flexible control systems.
Features:
- 194 built-in effect models and tonal emulations
- 80 preset slots for storing downloaded MNRS and third-party sample files
- Compatibility with the MOOER Cloud tone-sharing platform
- Built-in 80-minute looping module
- Record, overdub, pause, delete, and playback functions for looping
- Internal drum machine module, stocked with 56 drum grooves
- 4 unique metronomes
- Synchronization between drum machine and looper
- Convenient count-in cue function support from the metronome
- High-precision and customizable tuner module
- 2 multi-function footswitches
- 1.28-inch touchscreen interface
- LED digital display
- LED charge indicator
- Portable USB/OTG recording
- Direct compatibility with the MOOER prime mobile APP and MOOER Studio desktop software for preset management
- Bluetooth 5.0 audio playback
- 3000mAh integrated lithium battery with up to 6 hours of use time
- DC 5V/2A power supply and charging
- 3 hours charging time
- Low weight of 228g
- Compact, at 74mm (L), 125mm (W), and 49mm (H)
- Sample rate of 44.1kHz
- Bit depth of 24bit
- Compatible with MOOER F4 wireless footswitch
- 3.5mm MIDI port
- Mono TS ¼” input
- Stereo TS ¼” output
- 3.5mm headphone output
- Power switch button
The Prime Minimax M2 Intelligent Pedal will be available from the official distributors or retailersworldwide.
For more information, please visit mooeraudio.com.
Kirk Hammett has partnered with Gibson Publishing to release The Collection: Kirk Hammett, a premium hardcover coffee-table photo book where Kirk tells the stories behind his rare and collectible instruments.
“I am thrilled to announce the launch of The Collection: Kirk Hammett. I’ve worked diligently on this curated collection of vintage and modern guitars for the book. I feel the book captures the rich history and artistry behind each of these unique and rare instruments. Every picture tells a story and thanks to Ross Halfin and his exceptional photography, every picture in this book is worth a million words! This book could not be possible without the help of Gibson, so I’d like to thank them for making my passion for Greeny, and guitars a reality. I hope all of you enjoy this journey as much as I did.”
“It’s exciting the time has come to release The Collection: Kirk Hammett by Gibson,” adds Cesar Gueikian, President and CEO of Gibson. “We have been working on this project with Kirk for years now, and I had the opportunity to work closely with Kirk on the composition of the collection for the book. It was a thrill to put this together and it took a village to get it done! I hope everyone appreciates the work that went into this book and enjoys every story behind the guitars.”
The Collection: Kirk Hammett, Custom Edition is limited to just 300 numbered copies signed by KIRK HAMMETT and comes in a huge 19 x 14.5” (490 x 370mm) presentation box featuring custom artwork and an outstanding case candy package. In addition to the large-format 17 x 12” (432 x 310mm) hardcover version of the book with a stunning lenticular cover, the boxset includes a frameable 16 x 11.6” (407 x 295mm) art print of a Ross Halfin portrait of KIRK HAMMETT signed by both Halfin and the Metallica guitarist. Other case candy includes an Axe Heaven miniature replica of Hammett’s 1979 Gibson Flying V with case and stand, an exclusive pick tin complete with six Dunlop® Kirk Hammett signature Jazz III guitar picks, and a Gibson Publishing Certificate of Authenticity.
Explore The Collection: Kirk Hammett book HERE.
The collection includes Cobalt strings with a Paradigm Core, Tim Henson Signature Classical Strings, and the Tim Henson Signature FretWrap by Gruv Gear.
Engineered for maximum output, clarity, and durability, these strings feature:
- Cobalt with a Paradigm Core (not RPS) for added durability
- Nano-treated for maximum lifespan and corrosion resistance
- Gauges 9.5, 12, 16, 26, 36, 46 (Turbo Slinky set)
- Available individually or as part of the Tim Henson Signature Bundle
Tim Henson Signature Classical Strings
Crafted for dynamic, percussive tonality, these strings pair fluorocarbon trebles with silver-plated copper basses to deliver exceptional response and clarity.
- Gauges: 24, 27, 33, 30, 36, 42
- Available individually or as part of the Tim Henson Signature Bundle
Tim Henson Signature FretWrap by Gruv Gear
An essential string-dampening tool, the Tim Henson Signature FretWrap is designed for cleaner playing by eliminating unwanted overtones and sympathetic vibrations.
- Features Tim Henson’s custom ‘Cherub Logo’ design
- Size Small, fits 4-string basses, 6-string electric/acoustic guitars, and ukuleles
- Ideal for live performance and studio recording
- Ernie Ball collaboration with Gruv Gear
- Available individually or as part of the Tim Henson Signature Bundle
The Ernie Ball Tim Henson Accessory Bundle Kit
For players who want the complete Tim Henson experience, the Ernie Ball Tim HensonSignature Bundle Kit includes:
- Tim Henson Signature Electric Strings (9.5-46)
- Tim Henson Signature Classical Strings (Medium Tension)
- Tim Henson Signature FretWrap by Gruv Gear (Small)
- Tim Henson Signature Cable (Exclusive 10ft white dual-conductor cable, only available in the bundle)
The Tim Henson Signature String & Accessory Collection is available starting today, March 19, 2025, at authorized Ernie Ball dealers worldwide.
For more information, please visit ernieball.com.
