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SUNN 100S: The Colossus of Clean Power
If you believe music should be felt as much as heard, the SUNN 100S is your kind of amplifier. This legendary 100 watt all tube guitar amp delivers the pure and unrelenting power that shaped rock history. Plug in, turn up, and experience the tone that made SUNN a name known for volume and authority.

Unleash the Sound That Defined Loud
The SUNN 100S did not just define volume. It redefined what was possible on stage. More than an amplifier, it stands as a monument to tone and power, born in the late nineteen sixties when music was breaking every boundary. Built for bands that needed their sound to reach the back of the arena, the 100S became the foundation of rock, psychedelic, and heavy music. Its signature clean headroom, muscular tone, and road ready design made it a trusted companion for generations of musicians.

SUNN Means Loud
The name SUNN has always represented power, clarity, and stage  commanding presence. The 100S is built for guitarists and bassists who  want punch and precision at any volume. Oversized transformers and a  heavy duty steel chassis provide enormous headroom and articulate tone even when the amp is pushed to its limits. This amplifier does not simply get loud. It stays clean, defined, and unmistakably SUNN.

SUNN: Where loud is not just a setting, it is an identity.

Power and Simplicity Perfected
The 100S features a dual channel layout with independent Volume, Bass, and Treble controls for each channel. Its all tube circuit, powered by four KT88 tubes, produces a bold and dynamic voice that handles both  shimmering cleans and rich overdrive. The simple control layout keeps your tone front and center with no distractions or unnecessary features. Equally powerful for guitar or bass, the 100S is a versatile workhorse that  delivers flexibility without losing its character. Built from solid steel and  hardwood, wrapped in classic black tolex with a silver grille cloth and the  iconic red SUNN logo, this amp looks as commanding as it sounds.

A Legacy of Influence
The SUNN 100S helped shape the sound of modern music. Jimi Hendrix  chose it for its clarity and unmatched output. Pete Townshend used it to  deliver The Who’s explosive live sound. In later years, its massive clean power became a favorite among doom and stoner rock pioneers who relied on its headroom as the perfect foundation for fuzz and distortion. From large arenas to small clubs, the SUNN 100S continues to inspire  players who want their sound to move the air and shake the ground.

Spec

• output power: 65 watts RMS all tube
• channels: 2 independent channels
• tubes: 4×KT88 power tubes, 2×12AX7, 2×12AU7 preamp and driver tubes
• inputs: 2×¼” inputs for Channel One and Channel Two
• outputs: ¼” speaker out, 4 to 8 ohms
• controls: volume, bass, and treble for each channel
• construction: heavy duty steel chassis with hardwood cabinet
• dimensions: 24” × 11” × 9”

SUNN 200S Bass Amplifier: The Tube Legend That Defined Power
Meet the amplifier that did not just echo through history, it powered it. The SUNN 200S is for musicians who demand not only volume but authority.

A Legacy of Power and Precision
The SUNN 200S is more than a bass amplifier. It is a monument to the golden age of rock when tube power and bold design shaped a new era of music. Created with a focus on sonic depth and clarity, the 200S became the backbone of countless bands that needed their sound to be felt as much as heard. SUNN built its reputation on uncompromising power, and the 200S remains a symbol of those who live for thunderous lows and unmistakable warmth.

From the late nineteen sixties onward, the SUNN 200S helped define the sound of modern music. Its all tube circuitry, massive transformers, and simple control layout gave players the punch and reliability that rock and roll demanded. Whether shaking the walls of packed clubs or anchoring legendary studio sessions, this amplifier made sure bassists and guitarists could be both heard and felt.

SUNN Means Power
SUNN amplifiers are known for commanding presence and unmatched clarity. The 200S is built for players who crave not just loudness, but a rich and full sound that cuts through the mix. Every element, from the hand wired chassis to the KT88 power tubes, is engineered for headroom, tone, and authority. The result is a sound that remains tight and articulate across the entire frequency range.

Pure Tone and Simplicity
The SUNN 200S features a single channel with two inputs, one high and one low, feeding a straightforward control panel with Volume, Bass, and Treble. This minimal design lets the natural character of your instrument shine through. The amp’s tube compression and dynamic response create a touch sensitive feel that rewards expressive playing.

Its powerful all tube design and oversized transformers provide clean, punchy sound even at high volumes. When pushed, it delivers warm and musical breakup that feels alive and organic. The 200S is a favorite among bassists seeking a defined, deep tone, and among guitarists who use it as a pristine foundation for pedals, fuzz, and overdrive.

Built for the Road
The SUNN 200S is constructed for decades of use. The solid chassis, durable black tolex, and silver grille ensure it can withstand the demands of constant touring. Paired with its classic two fifteen-inch speaker cabinet, it projects bold, focused sound that fills any stage or studio with confidence.

A True Icon of Rock History
Used by pioneering rock and blues artists, the SUNN 200S became a trusted tool for musicians who needed their bass tone to be felt, not just heard. Its unmistakable warmth and strength made it a fixture of live and studio setups during one of the most influential periods in music. Decades later, it remains a sought-after amplifier among players who know that some legends never fade.

Spec

• output power: 60 watts RMS all tube
• channels: 1 channel with high and low inputs
• tubes: 2×KT88 or 6550, 1×12AX7, 1×6AN8, GZ34 rectifier
• speakers: 2×15" JBL or CTS cabinet
• controls: volume, bass, and treble
• finish: black tolex with silver grille
• dimensions: head: 24” × 10” × 9.5”
• dimensions: cabinet: 24” × 42” × 15”

Gary’s right brain consists of a dynamic and destructive fuzz that is both domineering and interactive. It is a ripping fuzz tone with an envelope-controlled variable pulse width and enough volume to blow everything up. This nasty little fuzz turns the signal into a square wave and allows you to dynamically adjust the duty cycle with pick attack. Yes! controls the sensitivity of the envelope. When this is all the way down you will get an unadulterated thick and heavy square wave fuzz tone that will sustain for days and go dead quiet when you stop playing. As you increase the Yes! control, the envelope becomes more interactive, and the pulse width narrows the harder you hit it. As the pulse width narrows, the tone becomes more nasal and biting until it gets so narrow that Gary goes to his dark place and disappears completely. In other words, with higher sensitivity settings, the sound will disappear entirely and come cruising back to Gary’s big guy tone. With proper playing dynamics, this creates a very cool effect that can sound like an exploding amp coming in and out of life, blown through a phase shifter.

Gary’s left brain displays his softer side. This is a simple and natural sounding overdrive that keeps your tone lively and drives your amp crazy. This side is based on the green channel of our Gray Channel, which is our take on the classic little yellow overdrive that started it all for us. Lee used this pedal with the clipping switch permanently set to the middle position, which removes all the diodes from the circuit, producing a full-bodied, cutting opamp distortion with plenty of volume on tap. We have reproduced that tone here with exacting precision. Go sets the opamp drive and can range from a simple full-range clean boost all the way up to a smooth and natural distortion. In conjunction with That’s It, which is the master volume for the drive side, you can use Gary’s softer side as a clean boost to push your amp into overdrive or turn up Go and use all of Gary’s internal magic to create the finely tuned dirt you desire.

Controls

• Go: Gain control for the overdrive. Turn this up to increase the opamp gain to a thick and full distortion, or turn it down and turn up That’s It to use it as a clean boost.
• That’s It: Master volume for the overdrive side.
• Left Footswitch: Overdrive
• Yes!: Sets the sensitivity for the envelope that controls the duty cycle for the square wave fuzz. The envelope is highly dependent on the level of the incoming signal, which can be affected by any gain pedals in front of Gary, pickup strength, source instrument, etc.
• Oosh: Master volume for the fuzz side.
• Right Footswitch: Fuzz

Promotion: Neural DSP is running a FREE PLUGIN promo for the Nano Cortex pedal from 11/21 through 12/3. To claim your plugin, visit NDSP.CO/BF25NANOPLUGIN .

Nano Cortex is an ultra-portable digital amp, cab, and effects processor for guitarists and bassists. It features Neural DSP’s acclaimed Neural Capture technology that enables you to create digital replicas of any amp, cab, or drive pedal with unmatched sound quality and playing feel.

Key Features

• A complete guitar or bass rig in an ultra-compact pedal
• Customisable signal chain with 50+ effects and utilities
• Neural Capture technology with the same resolution and accuracy as Quad Cortex
• Create accurate digital replicas of any amp, cab, or drive pedal, directly on the device, in minutes
• Free access to thousands of Neural Captures via Cortex Cloud
• Ultra-compact: As wide as two standard pedals and weighs 620g / 1.36lbs - fits in your
  gig bag
• Can be powered with a standard USB battery pack for portable use
• IR loader with 300 studio-grade IRs and support for custom IRs
• Transpose tuning without changing instruments
• Built-in input gate (doesn’t use an Effect Slot)
• Customizable footswitches for real-time control
• Low-latency USB audio interface with 24-bit / 48 kHz recording
• Use standalone or integrate into any pedalboard or studio rig
• Ideal for live shows, studio sessions, travel, or home practice
• Built-in tuner
• Intuitive UI for beginners and pros alike
• Bluetooth support: manage presets, download Captures, and tweak tones wirelessly
• MIDI TRS input + full MIDI control via USB

Ultra-portable Neural Capture solution
Nano Cortex’s Neural Capture technology allows you to create incredibly accurate digital replicas of any amp, cab, or drive pedal. The process is quick and easy. Simply connect your gear, press the Capture button, and within minutes you will have a digital version of your hardware that’s virtually indistinguishable from the real thing. There’s no need to connect to a computer, the internet, or the Cortex Cloud app. It’s fast, easy, and fully self-contained.

Neural Captures created on Nano Cortex have the same resolution and quality as those made with our flagship Quad Cortex, and can be seamlessly transferred between the two devices. You also get free access to the Cortex Cloud where you can share your Neural Captures and access thousands of Captures created by the Cortex Cloud community. These Captures can be wirelessly downloaded to your Nano Cortex via the Cortex Cloud app.

Nano Cortex is intuitive and user-friendly
Nano Cortex has straightforward and intuitive controls for standalone use. You get studio-quality tones out of the box that can be easily tweaked with the onboard controls. For more detailed control and customization, the Cortex Cloud app lets you manage your device, download Neural Captures, and adjust Presets wirelessly over Bluetooth. By connecting Nano Cortex to a computer via USB-C, it doubles as a fully-fledged low-latency 24-bit, 48kHz audio interface with 7 USB channels (3 inputs/4 outputs).

Who is Nano Cortex for?
The versatility and ease of use of Nano Cortex makes it ideal for guitarists and bassists of all skill levels. Whether you need sparkling clean tones, crushing high-gain, or anything in between, Nano Cortex provides the performance and flexibility to dial in your perfect tone.

• Touring musicians get a full guitar/bass rig in a portable, gig-ready package. Its studio-quality sound and versatility make it perfect for grab-and-go situations or when traveling light.
• Studio professionals get access to virtually any guitar/bass amp and cab sound, and the ability to create permanent digital replicas of their own favorite studio gear.
• Beginners and intermediate players can explore a limitless variety of tones without the need for multiple pieces of expensive gear. Nano Cortex is extremely easy to use, yet powerful enough to keep up with their growing needs as a musician. You can also practice silently with headphones.

A full guitar/bass rig Nano Cortex delivers studio-grade sound, a fully customizable signal chain, a complete suite of effects, and the revolutionary Neural Capture technology - all in a compact, ultra-portable pedal. Whether you’re on stage, in the studio, or anywhere in between, your perfect tone is always within reach.

Signal chain

• Input Gate
• Built-in input gate - eliminates noise without using an FX Slot
• Pre-FX Slots (2)
• Utility: Adaptive Gate, Utility Gate, Volume
• Compressor: Legendary 87 (M), Solid State Comp (M), VCA Comp (M), Opto Comp (M)
• Wah: Bubba Wah, Bass Wah, Crying Wah, Crying Clyde Wah
• Filter: Love Meat, Envelope Filter
• Guitar overdrive: Obsessive Drive, OD250, Rodent Drive, Exotic, Chief OD1, Chief
  BD2, Facial Fuzz, Exotic Z Boost, Green 808
• Bass overdrive: Microtubes B3K, Exotic Bass Z Boost
• Pitch: Transpose

Neural Capture

• Nano Cortex ships with 25 preloaded Neural Captures, including classics such as the Mesa Boogie® JP2C®, Fender® Princeton® 65, and Ampeg® SVT Classic®. Cortex Cloud has thousands of Captures to explore and use for free. In addition to the 25 preloaded Captures, you can store up to 256 user Captures on your device.

IR Loader Slot

• Preloaded with 10 cabinet models, each with 30 studio-grade IRs, five mics, six positions per mic, for a total of 300 impulse responses straight out of the box. In addition to the preloaded IRs, you can store up to 256 of your own IRs.
• Post-FX Slots (3)
• Compressor: Legendary 87 (ST), Solid State Comp (ST), VCA Comp (ST), Opto Comp (ST)
• Utility: Doubler
• Modulation: MX Flanger, Dream Chorus (ST), Chorus 229T, Chief CE2W (ST), Chief
• DC2W (ST), MX Phase 95, MX Vibes
• Delay: Tape Delay (ST), Analog Delay (ST), Digital Delay (ST), Dual Delay, Dual Reverse Delay, Circular Delay
• Reverb: Room, Hall, Modulated, Ambience, Cave, Mind Hall

EQ (selectable in any Pre- or Post-FX slot)

• Parametric-3
• Low-High Cut
• Graphic-9