The True Spring Reverb also allows you to combine any of its iconic spring reverbs with any of the pedal's three tremolo effects. The True Spring's tremolos are the same organic effects that originally appeared in our Vertigo Tremolo - the winner ofGuitar Player’s“Hall of Fame 2015” andPremier Guitar’s“Premier Gear Award.”
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Opto Tremolo:Optical tremolo (a.k.a. “Photocell Tremolo”) is the effect found in many combo amps of the 1960s. This version of tremolo relies upon a neon light bulb and a light dependent resistor called an "optocoupler." The non-symmetrical aspects of the light and the optocoupler give the tremolo a distinct choppy character.
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Harmonic Tremolo:This unique effect first appeared in Fender™ “brownface” amps made between 1959 and 1963, which alternately modulated the levels of bass and treble frequencies in the audio signal. The result is a very pleasing and complex tremolo that has characteristics reminiscent of a phaser.
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Bias Tremolo:This approach to tremolo involves using an LFO to modulate the bias voltage of the tubes in an amplifier. This essentially pushes the tubes in and out of saturation. The result is a smooth amplitude modulation with a mild overdrive created by the tube saturation.
But it gets even better! You also receive a Tap Tempo Switch!
The Source Audio Tap Tempo Switch is a simple footswitch that adds significant functionality to every One Series pedal in the Source Audio collection. It offers on-the-fly tap tempo control over modulation rates for the Vertigo Tremolo, Lunar Phaser, Gemini Chorus, and Mercury Flanger as well as delay times for the Nemesis Delay. The Tap Tempo also makes it possible to externally scroll through presets on the Nemesis Delay, toggle between distortion engines on the L.A. Lady Overdrive, Kingmaker Fuzz, and AfterShock Bass Distortion, or render virtual knob changes to every One Series pedal. In addition, the Switch has a standard 1/4” output for use with compatible third-party products (normally open [NO], single pull/single throw (SPST)).
