Related Manuals for AMT Analoger ACV-1
Summary of Contents for AMT Analoger ACV-1
- Page 1 Analoger™ ACV-1 100% Analog Bucket Brigade Chorus Vibrato Time Warping Modulator User Manual Revision A Last Revision 8/3/2022...
- Page 2 Introduction Thank you for your purchase of the Asheville Music Tools Analoger™ series ACV-1 Chorus/Vibrato & Time Warp Modulator. This pedal, engineered by renowned analog designer Hawker, features a reissue Bucket Brigade Delay line to give classic Chorus and Vibrato sounds with the most natural modulation possible.
- Page 3 Hawker’s Log: About BBDs I am often asked what gives analog delay-based effects their characteristic sound. The reason for me is different than I see others usually mention. A BBD (Bucket Brigade Delay) works by storing a momentary snapshot in a capacitor isolated by a FET network.
- Page 4 With a fixed clock frequency, they can only take a sample step every 48 or 96KHz and step at that increment. This only simulates fractional delay and is not true fractional delay. The ear can hear the difference, and so the brain will perceive this difference as incorrect.
- Page 5 About the Firemen and the ACV-1 Artwork Our pedal artwork pays homage to Hawker’s past pedals and classic modular synthesizers. The lines and boxes around function blocks lend themselves to classic modular synthesizer layouts, which were organized by function. You may notice the use of synthesizer terms such as “LFO, VCO, CV”...
- Page 6 Set up Use only a standard, 9VDC REGULATED, center-negative power supply rated for at least 200mA, from a reputable vendor for all your Asheville Music Tools effects. Vintage style rectified & filtered, but unregulated, supplies are not acceptable for use with this product. We like the Truetone™...
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Page 7: Getting Started
Getting Started Let us explore the range of controls on your ACV-1. Connect your guitar or other instrument to the INput jack. Connect an amplifier, mixer, or DI box to the OUTput jack. If you have an expression pedal (or 0-5V control voltage source like a synthesizer output), connect it to the EXPression input. -
Page 8: Operation
Operation The ACV-1 is laid out in homage to modular synthesizers with three main modules. They are the DELAY Module, the LFO (Low Frequency Oscillator) and the AMP Module. Let us look closer at these modules. DELAY MODULE TIME: The TIME knob adjusts the center delay time from ~3ms to ~60ms (more using LFO and control voltages). - Page 9 LFO MODULE The Low Frequency Oscillator (LFO) module is a modulation source for animating the delay time and phase as well as for bending the pitch of the signal. Unlike traditional chorus or vibrato units, our LFO provides sine wave and square options and uses exponential modulation for musical and balanced movement, the way the ear and brain want to hear it.
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Page 10: Amp Module
AMP MODULE The AMP modules provide wet and dry signal blending as well as tonal control of the ACV-1 wet signal. MIX: The MIX knob provides a cross-faded wet/dry mix between the delayed wet and clean tone. A 1:1 mix, providing the deepest comb notches, is at about 11:00 and not 12:00. - Page 11 CONTROL VOLTAGE or EXPRESSION SECTION: Using the EXP knob and an external EXPression pedal or control voltage with your ACV-1 will greatly increase the dynamic playing and tonal possibilities as well as expand the control range beyond the extent of the front panel knobs alone.
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Page 12: Foot Switches
FOOT SWITCHES BYPASS FOOTSWITCH: Turns the effect on or off. The LED is lit when engaged and will modulate to the LFO rate in a triangle wave shape regardless of LFO switch shape. A switch inside the ACV-1 is user selectable for true bypass or buffered bypass. -
Page 13: Technical Overview
Technical Overview Utilizing over 350 carefully selected components, the entire ACV-1 is designed for a 100% analog signal chain. We began with a classic chorus architecture using an Xvive™ MN3007 reissue BBDs and a step-up boost power supply to power our premium audio-grade op amps and high- tolerance, non-microphonic capacitors, providing performance, temperature &... -
Page 14: Specifications
Specifications: Type: 100% Analog signal and control path • Delay Time: 3.1ms - 59ms. 1.9ms - 95ms with LFO and to 155ms • with external Control Voltages Feedback: 0 to near infinite. Capable of self-oscillation using tone • or EXP input coupled with knob position. Rate: LFO RATE, from 0.1Hz to 14Hz (28Hz with CV control) •... - Page 15 Presets: Let’s try out some sound ideas for the ACV-1 using it to Warp Time. So with a bit of a mind flip, you’ll be into the time slip where nothing can ever be the same. Remember kids, since analog products have some variability, the exact knob setting may be slightly different from those shown below.
- Page 16 Put your hands on the switch: Flip that phase switch and you will take off to another dimension, with voyeuristic intention, giving expressive vocal sounds. Try the LFO with sine wave for smoother modulation. This sound is more pounced on lower notes. Dial the modulation in tight.
- Page 17 Shirley don’t call me Leslie. If we remove the dry signal, we get a vibrato sound like a rotating speaker. Try this one with an octave pedal in front for some great organ sounds. It’s a big rotating Doppler effect, but that’s not important now. Feeling Slap Happy and I came up with this Good ol’...
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Page 18: Change Log
Tools To Inspire Your Creative Muse Proudly Designed, Manufactured, Machined & Assembled in the mountains of Western North Carolina Changelog Revision Date Notes Rev A 08/03/2022 Production release Rev 1 05/25/2022 Prototype manual Visit our website for more information, mods, hacks, and presets. www.AshevilleMusicTools.com <18>...