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The Holy Grail of guitar reverb effects, the Fender®-style spring reverb, has been finally revisited with modern features!

★ aluminium body with removable feet on the back side for better positioning on pedalboards ★

★ external footswitch possibility though the dedicated 1/4 in. jack (footswitch not included) ★

★ TRUE bypass functionality to keep your signal intact when the effect is off ★

★ clean boost after the effect to balance the possible volume loss when the effect is on ★

★ innovative dual-LED on/off button ★

★ Accutronics® spring reverb pan ★

Based on our very popular SurfyBear Classic, the tank works with a 12V power supply (100-240V compatible) included in the package.
Please note that the carrying padded bag is optional. It can be purchased separately at our ACCESSORIES page.

Try it and discover why most surf guitarists and the truly reverb addicted are turning to SurfyBear!


The controls are pretty easy on this effect. We used the control labels as in the original Fender® 6G15®

  • DWELL: it defines the amount of effect applied to the dry signal. Please notice that each spring reverb pan (what you see underneath the unit) has its own decay value, which means that the time the reverb effect lasts depends on the type of reverb pan that is used.

  • MIXER: it defines the balance between "dry" and "wet" signals. The more you set this control low the more the signal remains clean, although you can still hear a "reverb tail", especially if the Dwell is set very high. At the opposite, by setting this control high, the signal is in the hands of the unit which changes the sound heavily by making it a bit smoother and affecting the attack of the guitar: like in the original Fender® unit.

  • TONE: it defines how bright or dark the output signal is. Setting this control high makes the tone more trebly, emphasizing the reverb-drip effect, but can also result in a very harsh guitar sound. Please note that the Tone control is "post-mixer".

  • VOLUME: allows to adjust the volume of the signal after the reverb when the effect is turned on


    Tank size: approx. 44 X 17 X 8 cm (17.5 X 6.5 X 3 inches)


    The original piece of electronics that started it all! This is a controller which features the same specifications of the Fender® 6G15® reverb unit replacing the tubes with JFET transistor technology. This is not a digital effect.

    Spring reverb technology has been well known for more than 50 years. One of the first reverb units available for electric guitars was the Fender® 6G15® standalone reverb, which has set the standard for generations of musicians. Still today, the unique sound of spring reverbs is very popular among guitarists.

    A detailed description of the Fender® 6G15® reverb can be found on the SurfGuitar101 Wiki.


    Basically, the tubes in the schematic are replaced with JFETS/MOSFETs and the output transformer with a current source. The circuit is all Class A and it is optimized for a tube-like harmonic content. It is using a standard 12V DC power supply adapter.


    Take advantage of leaving the signal pure and intact when the effect is off: this is what true bypass is really. The signal is routed directly from the input to the output without any modification.