The best of American muscle join forces.  Two of the US premier amp builders created in the 327SD a first of its kind - an amplifier co-engineered by Diamond and Soldano. Already responsible for some of the world’s fiercest high-gain tones, Diamond and Soldano created a sound that gives America’s finest muscle cars an inferiority complex with an unparalleled reliability.  Starting with the Diamond tried-and-true platform and heralded clean sound, the 327SD is augmented by a collaborative gain channel with similarity to the iconic SLO100 but with a modern styling so distinctive to Diamond.  It is truly the best of all worlds.


Built with the highest quality construction and components, the Hammersmith is as the name and vintage-yet-modern look suggests. The Hammersmith’s diode clipping gain structure projects lush British-Inspired, midrange heavy distortion. Back panel boasts a dialable “deep” control. A new look for Diamond, the Hammersmith is up for anything you can throw its way.


Built with the highest quality construction and components, the Heretic provides a thunderous, full gain tone that's open, precise and hits you in the chest like a sledgehammer. As the name suggests, it, like you, refuses to follow the rules. The Heretic features Diamond’s signature dual volume/gain design on Channel 2 and our heralded clean channel. Back panel boasts a dialable “deep” control. Our classic tolex-front panel design with red LED’s. 


Built with the highest quality construction and components, the Phantom is voiced to a more traditional high gain sound with more saturation and tons of mids and lows. Features Diamond's signature dual volume/gain design on Channel 2 and our heralded clean channel. Contains a 3-position “low focus” control allowing the player to control the amount and focus of the low end relative to higher frequencies. 


Built with the highest quality construction and components, the Nitrox is Diamond's most ferocious head. Features Diamond's signature dual volume/gain design on Channel 2, voiced for insane gain/crunch tones with huge, tight low end and plenty of mids as well as our heralded clean channel. 


Built with the highest quality construction and components, the Spitfire II is voiced to a more vintage high gain sound with huge clarity, punch and brilliance. Features Diamond’s signature dual volume/gain design on Channel 2 and our heralded clean channel. Contains a 3-position “low focus” control allowing the player to control the amount and focus of the low end relative to higher frequencies. Half-power switch on rear panel.