Guyatone Ultrem Optical Tremolo

With optical circuitry based on the classic amp tremolo circuits of yesteryear, the Guyatone Ultrem Optical Tremolo takes the tone of those legendary units and adds a variety of new and useful control features that set it apart from any other stompbox on the market.

With the Ultrem several types of tremolo and volume effects are available including oscillator-controlled Tremolo and manually-controlled Volume. Rate of the Tremolo can be controlled via tap tempo, the unit's front-mounted Speed control, or an optional expression pedal. Dual outputs allow panning of the Tremolo effect between two amps or for use as an amp selector/blender in manual Volume Mode. Depth and Saturation controls allow for precise control of the degree and tonality of the effect as well as for use as a great-sounding Overdrive unit when the oscillator is disengaged.

At the heart of the Ultrem is Guyatone's proprietary CPU controller which allows for quick selection of the Ultrem's primary effect function. Six Effect Modes are easily accessible from the unit's front panel, and each Effect Mode features a Sub-Mode that can be accessed with a quick press of the Control Footswitch. If that wasn't enough, the last two Modes also feature Bonus Modes that allow for manual selection of the oscillator Waveform via an external expression pedal.

The Six Effect Modes are as follows:

WAVE TAP –Functions as an oscillator-controlled Tremolo with rate determined by tap tempo function of Control Footswitch.

MOMENTARY WAVE – Functions as an oscillator-controlled Tremolo when Control Switch is depressed and held – releasing switch disengages the effect. Rate is determined by unit's Speed control.

PEDAL VOLUME/WAVE - Main Mode varies output Volume using the optional Expression pedal or functions as an oscillator-controlled Tremolo in Sub-Mode. If set to Pan On, Ultrem can function as an amp selector/blender in Main Mode.

PEDAL DEPTH & WAVE TAP - Allows user to vary the Depth of the effect by using an optional Expression pedal, and also to adjust speed of Wave Tremolo by tapping tempo, instead of using pre-set controls.

PEDAL SPEED1/TOUCH – Main Mode varies the speed of the Wave Form oscillation with the optional Expression Pedal over a range of 70-1000 mS. In Sub Mode the unit functions as standard Tremolo.

PEDAL SPEED2/TOUCH – Main Mode varies the speed of the Wave Form oscillation with the optional Expression Pedal over a range of 70-4000 mS. In Sub Mode the unit functions as standard Tremolo.

By using these different Effect Modes, the user can achieve a limitless variety of Tremolo and Volume effects that can all be toggled through and tweaked in real time.

The Ultrem's CPU also offers six selectable waveforms when the unit is used in the oscillator-controlled Effect Modes - a variety of Triangle, Sawtooth, and Square Waves are available for quick selection via the unit's front panel, allowing the Ultrem to mimic any Tremolo type from the smooth, rolling tone of vintage amps to the tight “helicopter” chop so popular in today's music. In addition, the oscillator's rate can be displayed in BPM or Milliseconds allowing for precise syncing to song tempo or external devices.

The Ultrem also features an “auto-start” function that engages the Tremolo effect whenever there is an input signal and disengages when input signal returns to zero. This allows for “quick start” Tremolo that will be perfectly timed with the musical passage. The input sensitivity of this feature can be adjusted via an internal Trim Pot to allow use with a variety of different instruments and input signals.

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Guyatone Ultron Auto Wah

With optical circuitry based upon the vintage Mutron III envelope filter, the Ultron Auto Wah takes the soul of that classic effect and adds a variety of new and useful control features that set it apart from any other unit on the market.

With the Ultron three types of classic wah filter effects are available – Envelope Filter (filter effect controlled by pick attack), Auto Wah (filter effect controlled by internal oscillator), or Manual Wah (filter effect controlled via external expression pedal). For all three effect types the frequency range, direction and intensity of the filter effect are completely adjustable via the Threshold, Frequency, Drive and Peak controls on the unit's front panel.

At the heart of the Ultron is Guyatone's proprietary CPU controller which allows for quick selection of the Ultron's primary effect function. Six Effect Modes are easily accessible from the unit's front panel, and each Effect Mode features a Sub-Mode that can be accessed with a quick press of the Control Footswitch. If that wasn't enough, the last two Modes also feature Bonus Modes that allow for manual selection of the oscillator Waveform via an external expression pedal.

The Six Effect Modes are as follows:

MOMENTARY WAVE – Functions as an Envelope Filter or, when Control Footswitch is pressed and held, an oscillator-controlled Auto Wah.
WAVE TAP –Functions as an oscillator-controlled Auto Wah with rate determined by tap tempo function of Control Footswitch.
PEDAL WAH/TOUCH – Functions as a Manual Wah with filter position controlled by the optional external expression pedal in Main Mode. Three selectable tapers (Linear/Audio/Reverse Audio) are available for the treadle. In Sub-Mode unit functions as an Envelope Filter.
PEDAL DEPTH/TOUCH - Main Mode varies Frequency Depth using the optional Expression pedal or functions as Envelope Filter in Sub-Mode
PEDAL SPEED1/TOUCH – Main Mode varies the speed of the Wave Form oscillation with the optional Expression Pedal over a range of 70-1000 mS. In Sub Mode the unit functions as an Envelope Filter.
PEDAL SPEED 2/TOUCH – Main Mode varies the speed of the Wave Form oscillation with the optional Expression Pedal over a range of 70-4000 mS. In Sub Mode the unit functions as an Envelope Filter.

Via these multiple Effect Modes, the user can achieve a limitless variety of filtering effects that can all be toggled through and tweaked in real time.

The Ultron's CPU also offers six selectable waveforms when the unit is used in the oscillator-controlled Effect Modes - a variety of Triangle, Sawtooth, and Square Waves are available for quick selection via the unit's front panel. In addition, the oscillator's rate can be displayed in BPM or Milliseconds allowing for precise syncing to song tempo or external devices.

Like the Mutron III, the Ultron features selectable High Pass, Band Pass and Low Pass filters, allowing for use with a wide variety of instruments and input signals. Additionally, the Ultron features a Notch Filter setting which creates a “mid-scoop” effect particularly useful for Funk and Slap Bass.

The Ultron's Range control offers similar improvements over the original Mutron, featuring the standard Hi and Lo ranges as well as the new Mid frequency range, which allows for much more precise positioning of the filter effect. The Ultron's operation ranges can be further tweaked for use with specific instruments via an array of internal DIP switches.

We could go on and on regarding its features and functions, but to put it simply the Ultron is the ultimate Auto Wah! Whether you are looking to replace your vintage stompboxes or create an entire new range of filtering effects, the Ultron is a one-man audio arsenal!

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Musictoyz.com Price $439.95