The Benidub Spring Amp III is a top - notch hi - fi amplifier for spring reverb tanks. It combines studio - quality sound response with a 2 - pole high pass/low pass filter to precisely shape the spring's output. This preamp serves as a great interface between standard audio mixers and spring reverb tanks designed for guitar amps. The filter and preamp come with independent volume controls, allowing it to work as a standalone filter or right after an instrument with a line output. Every feature operates click - less, and the circuit has a built - in low - noise filter along with Class - A discrete components for the best noise performance. Its 7.5W constant current amplifier drives 8 - ohm input reverb tanks for maximum volume and excellent treble response. You can easily shape the sound with individual rotary knobs for input, output, and analog filter modulation controls. There's a crossfader between low - pass and high - pass filter outputs and a new push - button switch to place the filter before or after the spring tank. The new LFO wave knob lets you switch between 6 different LFO waveforms. It also has a built - in soft clip circuit on both input and filter, enabling you to push your sound further without sacrificing performance. It works with external spring tanks and is compatible with most on the market. The power supply and RCA cables are included. As Benidub says, it's a bridge between audio mixers and spring reverb tanks, the third iteration of the renowned 'Spring Amp' series, offering dynamic filtering in an easy - to - use package. Technical specs include a 1/4' balanced/unbalanced mono Jack input and output, a 1/4” unbalanced mono Jack to RCA connection to the spring tank, a 7.5W constant current amplifier, a built - in 12DB/OCT resonant HP/LP VCF, and dimensions of 4.7” x 5.9” x 2.4” / 120 x 150 x 60mm. Compatible spring tanks include type 9 long chassis x3 springs, type 8 short chassis x3 springs, and type 4 long chassis x2 springs with their respective product codes. Also available are other Benidub products like the DS71 Dub Siren, DS01 Dub Siren, and more.



Using the Benidub Spring Amp III is easy. First, connect the power supply and the RCA cables that come with it. Then, use the 1/4' balanced/unbalanced mono Jack to connect the input from your audio source, like an audio mixer. Connect the output to your audio system using the same type of Jack. For the spring tank, use the 1/4” unbalanced mono Jack to RCA connection. You can shape the sound using the individual rotary knobs for input, output, and analog filter modulation controls. The crossfader and the push - button switch give you more control over the filter placement. To change the LFO waveform, just turn the NEW LFO wave knob. When it comes to maintenance, keep the device in a dry and clean place. Avoid exposing it to extreme temperatures or humidity. If you notice any issues with the sound or the functionality, check the connections first. If the problem persists, contact Benidub's customer service. Remember, the built - in soft clip circuit allows you to push the sound further, but don't overdo it to ensure long - term performance.