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Benidub Spring Amp III
Advanced spring reverb preamplification
The core of the Spring Amp III lies in its specialised reverb preamplifier design. Using a discrete transistor front-end, the amplifier ensures an ultra-low noise figure and pristine sound capture from your reverb tank. It is paired with a robust 7.5W constant current amplifier optimised for 8-ohm input tanks, pushing the springs to their full potential with extended treble response and impressive output volume. This setup delivers dynamic, clear, and highly mussical spring reverb tones that retain the organic texture and lively character that define classic dub and experimental sounds.
Built-in filter with crossfader control
The inbuilt analog filter offers extensive tonal shaping options with a 12dB per octave slope. Featuring a continuous crossfade between high-pass and low-pass outputs, the filter provides rich modulation opportunities. You can easily sweep from bright, piercing highs to deep, resonant lows, sculpting the reverb’s decay and character in real time. A routing switch allows you to decide if the filter processes the sound before or after the spring tank, offering two distinct tonal approaches: mellow and harmonically rich or dramatic and splashy.
Soft clip saturation for warm analog tone
Spring Amp III features an integrated soft clipper on both the input and filter stages. This addition means you can push signals into gentle saturation without unwanted distortion artifacts or damaging your speakers. The resulting sound is thick, warm, and full of harmonic complexity, adding an expressive edge to your dub swells, rhythmic hits, and ambient washes. The soft clipping works seamlessly across the unit's dynamic range, making it highly playable for hands-on performance techniques.
Independent filter and preamp controls
Independent volume controls for both the preamplifier and the filter sections grant significant flexibility. This configuration allows the Spring Amp III to be used not only as a spring reverb driver but also as a standalone analog filter unit, ideal for creative signal processing or live improvisation. Connect it directly after an instrument, a mixer, or a studio interface to add lush filtering and saturation to any sound source, expanding its usability well beyond traditional spring reverb applications.
A legacy of passion and refinement
The Spring Amp III represents years of passion and continuous improvement from Benidub, refined through hands-on experience and invaluable user feedback. It carries forward the spirit of classic dub effects while pushing forward into new creative possibilities. With its intuitive layout, top-tier audio fidelity, and inspiring hands-on controls, the Spring Amp III is not just another reverb accessory – it is a performance instrument in its own right, designed for artists who want their effects to be as dynamic and alive as their music.
TAD Type-8 Spring Reverb Tank
Brings rich three-spring tone to compact amps
The TAD Type-8 adds detailed and dynamic reverb to smaller amplifiers. Its three counter-wound springs generate a lively and textured effect that mimics the depth of larger tanks. The result is a smooth, immersive sound with no flutter and a wide frequency response, even in compact setups.
Smart build for lasting performance
Designed with durability in mind, the tank features an aluminium tray housing the custom-wound transducers. Internal wiring includes stress relief to reduce breakage. Soft grommets help isolate the tank from vibrations, preserving tone quality and keeping mechanical noise to a minimum.
Drop-in compatible with modern and vintage amps
The Type-8 includes standard white (input) and red (output) RCA connectors to fit common amplifier layouts. Multiple mounting holes allow the tank to fit a variety of setups easily, making it a straightforward upgrade or replacement part across a range of models and configurations.
Designed for tone built for reliability
TAD created this tank in response to the discontinuation of USA-made Accutronics units. With a rugged hammertone finish and focus on high-quality construction, it delivers consistent, clear and deep reverb. This makes it a solid choice for musicians needing dependable performance in live or studio settings.
Features
Benidub Spring Amp III
- Dedicated spring reverb preamplifier optimized for external reverb tanks
- Integrated 12dB/oct analog filter with continuous high-pass to low-pass crossfader
- Soft clip saturation on input and filter stages for warm, musical drive
- Low-noise discrete transistor amplification with Class-A components for studio-grade sound
- Independent volume controls for filter and preamp sections for flexible signal routing
- Switchable routing to place filter pre- or post-spring reverb for different tonal effects
- 7.5W constant current amplifier designed for maximum treble response and output clarity
- Compact, rugged desktop design ideal for live performance and studio use
- Clickless switching and robust construction for seamless integration into demanding setups
- Developed through years of refinement, blending classic dub aesthetics with modern versatility
TAD Type-8 Spring Reverb Tank
- Long decay and lively spring-style reverb
- Classic tone in a compact short-chassis design
- Three-spring depth with minimal flutter
- Fits most amps with standard audio connectors
- Ensures long-lasting use with rugged metal build
Specifications
Benidub Spring Amp III
- Power Input: 12VDC, 1A, Center Positive, 2.1 mm × 5.5 mm Barrel Connector
- Audio Input/Output: 1/4” Balanced Or Unbalanced Mono Jack. Balanced Connection Improves The Signal-To-Noise Ratio
- Gain: Sets The Input Amplifier Gain, From Unity Gain To Overdrive
- Cutoff: Sets The Filter’s Cutoff Frequency
- Resonance: Sets The Amount Of Filter’s Resonance
- LFO Wave: Switches Between 6 Different LFO Waveforms
- Spring Tank Connections: 1/4” Unbalanced Mono Jack To RCA
- Reverb Volume: Sets The Spring Reverb Volume
- Dry To Filter: Sets The Amount Of Dry Signal That, After Being Filtered, Is Added To The Unit’s Output
- Pre/Post Springs: Click-Less Switch To Change The Spring Signal Routing, Allowing For The Filter To Be Placed Before Or After The Spring Tank
- LPF/HPF: Crossfade Between HP And LP Filter Outputs
- LFO Rate/Depth: Dedicated Controls To Set The Filter’s Cutoff Modulation Speed And Amount
- Product Code: SPRING-AMP-III
TAD Type-8 Spring Reverb Tank
- Outer Channel Dimensions (LxWxH): 23.5 cm × 8.6 cm × 3.3 cm
- Product Code: TAD-T8