The Tone City Tremble brings the lush, vintage tremolo vibes of classic 50s and 60s tube amps straight to your pedalboard. With its warm, full, and organic tone, it captures the soulful pulse of those built-in amp tremolos that shaped the sound of early rock, surf, and blues. Perfect for adding movement and depth to your sound, the Tremble is ideal for swelling chords, vintage-style rhythms, or that unmistakable surf-rock shimmer. Despite its compact size, it offers plenty of tweakability and is incredibly easy to dial in—making it a great addition to any rig. If you're chasing authentic tube-style tremolo in a space-saving format, the Tremble is the perfect fit—simple, warm, and classic. Please note: This pedal is not compatible with 9V batteries and must be powered using a 9V DC power supply. Warm, vintage-style tremolo inspired by classic 50s and 60s tube amps Ideal for surf tones, swelling chords, and vintage rhythm textures Simple and intuitive control layout for easy tone shaping Compact mini pedal design fits any pedalboard Delivers organic, full, and true tremolo tone Perfect for clean or slightly overdriven amp settings Powered by DC 9V power supply only Compatible with Tone City Substation and TPS Series power supplies True bypass switching for clean signal flow