Here - Diamond Pedals
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1. gt Diamond GUITAR PEDALS Quantum Leap Short delay toolbox covering flange chorus to 600 ms delay User Manual v1 11 Oct 8 2012 INTRODUCTION The Quantum Leap is a toolkit of short delays offering the option of lo res delays flanging and chorusing effects as well as fixed comb filters effects that are both great on their own and also as a useful companion to other analog or digital delays By utilizing the same variable sample rate concept used in analog bucket brigade modulation and adding custom analog anti aliasing and reconstruction filters and companding we ve captured the essence of analog modulation and delays in a small footprint with advanced control features and standard 9V powering First used in the Memory Lane Junior the Quantum Leap digital sampling engine s sole function is to copy delay and reproduce the delay path signal with no mathematical manipulation at all and unlike standard audio codecs there are no digital anti aliasing and reconstruction filters All signal paths around the sampling engine direct path feedback path and everything before and after the digital sampler are analog paths carefully designed to provide a unique sonic signature that is unmistakably Diamond We hope you ll enjoy using this pedal as much as we have enjoyed designing it well almost no manipulation at all in the QL s Tap Delay mode there is a tiny bit of signal processing to get th2. 11 6 YY Diamond GUITAR PEDALS differences First it s repeats are significantly darker than the MLJr s using a combination of both slightly darker analog filtering as well as a unique sample smear technique that smooths transients resulting in delay washes Second holding down the TAP FX in this mode puts the Quantum Leap into an out there harmonic delay mode with either octave or fifth repeats selectable on the WIDTH knob or you can choose this hold down mode to be dotted eighths see operational note below on how to choose this option at power up The Tap Delay mode also introduces AutoDouble TM time for tap where delay times tapped in between 600 and 1200 ms automatically get mapped to half the delay time between 300 and 600 ms x Additional notes on the harmonic delay mode this is definitely one of the more experimental modes on the Quantum Leap The intervals are stackable in that increasing REGEN increases the number of times the interval continues to go up in frequency to the audible point of sampling rate limitations setting REGEN to min allows for just a single interval up By controlling the amount of upward spiral REGEN acts almost like a harmonic tone control Also play timing can be a bit strange in this mode as the method used for generating the sped up repeats generates a two beat gallop as the moving delay buffer is replayed and this can arbitr
3. LFO while in the delay modes it controls the depth of the fixed rate modulation function Turning the control clockwise will increase the modulation effect while turning this control to minimum will disable the modulation In the Filter mode the WIDTH knob controls the frequency of the second lower frequency range filter REGEN The REGEN knob determines the amount of signal fed back from the output of the effect to its input For Flange and Chorus this can drastically affect the hollowness of the effect while in the delay modes it controls the number of repeats that will result from a played note or chord Turning this control clockwise increases the number of feedback repeats Setting this control to minimum will result in zero feedback and a single repeat in delay modes MIX The MIX knob determines the amount of effect signal to be added to the direct signal path ranging from none at counterclockwise to a few dB louder than the direct signal at full clockwise Quantum Leap user manual v1 11 9 YY Diamond GUITAR PEDALS TAP FX The TAP FX footswitch provides two primary functions either for tapping in LFO speeds or delay times or for accessing other special FX functions either directly or by holding the switch down until an alternate mode is entered As the function of this switch is dependent on the effect mode please see earlier descriptions of the modes and their constituent functions for a full expla
4. green red The Chorus mode has considerable flexibility with control over REGEN feedback and MIX as well as LFO rate SPEED and depth WIDTH Like the flange mode both the SPEED and TAP FX switch can be used to set the LFO rate In regular Chorus mode also like the Flange the LFO speed can range from approx 6 Hz to 1 5 seconds cycle with TAP FX held for 1 4 time mode Unlike the flange the LFO waveform does not change when going to 1 4 time it remains a sine wave Filter solid yellow a unique quasi comb fixed filter this is very useful for either pronounced fixed filtering of distorted guitar inputs or to add more subtle character to clean guitar The TAP FX switch can be used to toggle back and forth between two different filter settings for creative emphasis during songs In the default Green mode ON OFF LED is green the comb frequencies are varied with the SPEED knob and when switched to the the Red mode ON OFF LED is red using the TAP FX footswitch the comb frequencies are varied with the WIDTH knob Each mode has different ranges the Green mode emphasizes higher frequencies and is more influenced by REGEN settings while the Red mode has a flatter overall response with less influence by REGEN settings Tap delay flashing green this max 600 ms tap delay mode at first glance appears to be the most similar to a standard MLJr tap delay but has two notable Quantum Leap user manual v1
5. DE Switch This toggle switch allows you to toggle through the choice of 5 different operational modes Each mode is indicated on the TAP FX LED by a different color color combination Flange alternating green yellow The Quantum Leap Flange mode has a unique voicing that lends itself to both clean and distorted guitar inputs In its regular mode of operation the LFO is a sine wave with a speed range of approximately 6 Hz to 1 5 seconds cycle Both the SPEED and TAP FX switch can be used to set the LFO rate The LFO sweep width is set by the WIDTH control REGEN can be used to control the amount of feedback hollowness By holding down the TAP FX switch Flange enters a 1 4 time mode where LFO speed is set to 1 4 the rate of whatever is set on the SPEED dial or tapped in This allows for more accurate setting of very slow LFO speeds to a particular tempo Also for Flange in 1 4 time mode the LFO shape is changed to a shark fin shape to give a more pronounced frequency rise and fall at its height It s still not the same as a true through zero flange effect which the Quantum Leap does not have support for but with distortion in front of it it s a nice effect on its own For best Flange effects keep the MIX knob up past 1 or 2 PM With the shark fine LFO waveform you may notice some slight aliasing high frequency artifacts at the most extreme LFO WIDTH settings this is normal operation Chorus alternating
6. Quantum Leap is designed to be powered from either a 9V battery included standard gV negative tip DC power adapter or from a multi pedal power supply Current draw is rated at a maximum of 7omA Please note that battery life with a standard gV is limited to approximately 2 5 hours We recommend using a quality negative tip 9V power adapter designed for powering musical accessories or a 9V negative tip feed from a dedicated pedal power supply Quantum Leap user manual v1 11 YY Diamond GUITAR PEDALS QUICK START GUIDE To get started quickly using the Quantum Leap simply turn the unit on bring SPEED WIDTH REGEN and MIX to roughly noon on the dial then toggle the MODE switch to a desired flange chorus filter or delay effect As SPEED WIDTH REGEN and MIX can be set to an almost infinite number of possibilities across the multiple modes here are a few preset ideas knob numbers represent clock positions to get started Name Mode TAP FX SPEED WIDTH REGEN MIX LED color Sparkle clean Flange green yel 11 AM 3 PM 11 AM 1 PM low Throaty distortion dis Flange green yel 12noon 12noon 12noon 2PM tortion pedal in front of low aL Chorus nirvana Chorus green red 3 PM 5 PM 7 AM 1 30 PM 80 s dream Chorus green red 1PM 12noon 10 30AM 12 noon Slow 80 s Chorus green red 9AM 3 PM 9 AM 12 noon Faux Leslie Chorus green red 7AM 1 30PM 7AM 1 PM Distortion comb puta Filter solid yellow 9AM N A 12noon 5PM di
7. arily affect the beginning and end of exact note phrases all part of the harmonic delay mode character The QL ships in default octave mode the WIDTH control will switch over to fifth intervals if you turn WIDTH almost completely clockwise so for the majority of the range of WIDTH the harmonic interval will be an octave To reverse this and make the fifth the default for the majority of WIDTH simply turn off the QL and hold down the TAP FX knob while the QL powers up until the power up LED sequence completes two cycles In this default fifth setting octaves are now reached by turning WIDTH fully clockwise So why this complexity We wanted users to be able to try both octave and fifths easily but also make sure that when switching into this mode from tap delay that except for the most extreme modulation settings used in the parent tap delay mode they would reach their desired default harmonic without needing to change the WIDTH knob One final note minimum delay times are limited in the harmonic mode the QL will automatically increase the delay time in this mode if you ve entered from a very short delay previously then go back to the short delay upon returning to regular tap delay mode Even with the harmonic mode s limitations it s possible to create unique tones ranging from far eastern note spirals to cool post distortion fifth and octave effects Let us know what you come up with Quantum Leap user ma
8. d modulation relative to the MLJr On to the Pitch ramping function in this mode the TAP FX switch allows you to ramp the delay time by holding it down then return it to the original delay time by letting the switch go then holding the TAP FX switch down again Let s dive in with a little more detail once you get the hang of its operation it s very straightforward and stage friendly First the initial direction of the pitch ramping up or down depends on which side of noon the SPEED dial is set If you re on the PM side pitch ramping first goes up to a shorter delay time and if you re on the AM side pitch ramping first goes down to a longer delay time If you keep holding the switch down it will ramp to one octave difference 1 2 or double delay time then hold at that delay time If you let go of the TAP FX switch at any point on that initial ramp or after it has reached the octave point it will hold at that delay time Pressing down the TAP FX switch again begins the return to the original delay time on the SPEED knob which it will continue as long as you hold the switch until it reaches the original delay time but letting go of the TAP FX switch early will drop you immediately to the original delay time so a quick jab of the TAP FX switch after you ve reached your desired ramp delay time will bring you immediately back to the original delay time Take some time to play around with this bring the REGEN up
9. e delay wash sound Remember to protect your hearing and wear appropriate hearing protection when playing loud Quantum Leap user manual v1 11 1 YY Diamond GUITAR PEDALS FEATURES e short delay toolkit with modes for flange chorus comb filtering and delays up to 600 ms e multiple delay voicings including a darker voiced delay a unique harmonic delay and foot controlled pitch delay ramping e tap tempo for LFO speed on flange chorus and delay time for the tap delay mode e user selectable tap delay hold down mode of either harmonic delays or dotted eighths e adjustable modulation depth on delays e analog signal paths surrounding a simple sample delay playout engine with special design variable sample rate A D and D A convertors e user selectable True Bypass or Buffered with Delay Trails operation e premium audio components including Panasonic capacitors and 0 5 resistors e bi color LEDs provides visual indication of modes LFO and delay times e Tap View TM allows the player to visually see the tap tempo speed on the ON OFF LED while tapping e AutoDouble TM tap algorithm intelligently sets the delay rate twice as fast when tapping rates slower than the max delay time of 600 ms e standard gV negative tip adapter ready with gig backup battery power life of 2 hours e compact Hammond 1590BB cast aluminum case approx 4 7 X 3 7 X 1 2 inches A NOTE ABOUT POWERING THE QUANTUM LEAP The Diamond
10. fairly high so the pitch changes strongly affect the built up delays and with a little practice you can time the footswitch holds to change the delay time to almost any desired semitone within the octave range The ON OFF LED is used to provide visual feedback of where you are in the ramping process If you re in the process of ramping from ground zero or are Quantum Leap user manual v1 11 8 gt Diamond GUITAR PEDALS holding at a new delay time after releasing the TAP FX footswitch after the initial ramp the LED will be red and if you re returning to or already at the ground zero delay time the LED will be green With the feedback REGEN up you can achieve some very interesting effects from turntable like speed change bumps to almost whammy like dives by setting the initial SPEED before noon with a distortion pedal out in front of the QL SPEED In the Flange and Chorus modes the SPEED knob controls the speed of the modulation LFO In the delay modes it controls the delay times In Flange and Chorus the LFO speed can also be set using the TAP DBL footswitch and in Tap Delay mode the delay time likewise you can seamless go back and forth between knob or footswitch control just by using one or the other In the Filter mode the SPEED knob controls the frequency of the first higher frequency range filter WIDTH In the Flange and Chorus modes the WIDTH knob sets the sweep range of the
11. ionality into 5 major modes each accessible by sequentially toggling through using the MODE toggle switch The modes can be identified visually by the color of the right hand side TAP FX LED The following table briefly summarizes each mode and the purpose and function of user controls when in that mode The modes will be discussed in further detail later in this section Mode TAP FX SPEED WIDTH TAP FX ON OFF LED LED color mode color Flange Alternating LFO speed Pitch modulation Tap for LFO speed Green when green yellow width hold to change to 1 4 ON red for 1 4 time time Chorus Alternating LFO speed Pitch modulation Tap for LFO speed Green when green red width hold to change to 1 4 ON red for 1 4 time time Filter Constant Hi range comb Lo range comb Toggle between hi Green for hi yellow filter frequency filter frequency range and lo range range red for filter settings lo range Tap delay Flashing Delay time Modulation Tap for delay time Green when green depth controls hold for harmonic ON red for harmonic interval mode OR dotted harmonic size in harmonic eighths choice is mode dotted mode selectable at power eighths up Pitchramp Flashingred Delay time Modulation Hold to ramp pitch Green when delay depth let go to halt ramping ON red for hold again to ramp pitch ramp back to original pitch a quick tap will return immediately to origi nal pitch Quantum Leap user manual v1 11 5 YY Diamond GUITAR PEDALS MO
12. nation of TAP FX switch control functionality ADDITIONAL FEATURE NOTES TAP VIEW As with the Tremolo and Memory Lane Jr the Quantum Leap provides TapView TM for temporary visual indication of tap tempo settings on the ON OFF LED while tapping the TAP FX footswitch and obstructing the usual tempo indication TAP FX LED LOW BATTERY INDICATOR Upon detection of low battery levels the Quantum Leap will set both LED s to solid yellow MODE POWER OFF SAVE The current mode Flange Chorus Filter Tap Delay or Pitch Ramp Delay is saved to flash memory whenever changed by the MODE toggle and will start up in the last used mode on power up BETWEEN MODE SETTING SAVES As you toggle between modes tap LFO rates tap delay times special function settings 1 4 time mode etc are saved for that mode and reloaded when toggled back to that mode On power off however only the MODE itself is saved in flash memory not associated delay times etc WARRANTY Your Diamond pedal is covered by a 5 year warranty on materials and workmanship Please contact us by telephone 902 832 7139 or email info diamondpedals com if you experience any problems with your pedal We re here to help Quantum Leap user manual v1 11 10
13. nual v1 11 7 gt Diamond GUITAR PEDALS One final note on dotted eighth operation The QL ships with harmonic mode as the default alternate mode when you hold down tap in tap delay mode By holding the mode toggle switch up during power up until it flashes the power up LED sequence a second time you can change this alternate tap delay mode to dotted eighths This hold down the tap button functionality in tap delay mode can be reversed back to harmonic mode simply by powering up again with the mode toggle switch held in the up position Pitch ramp delay flashing red This delay mode has both a different tone voicing and feature set than the Tap Delay mode although it remains 600 ms max delay time Tonally this does not use the delay wash technique used for Tap Delay keeping transient definition in tact Also as opposed to Tap Delay whose repeats always eventually fade to zero even at max REGEN Pitch Ramp Delay will achieve Controlled Feedback Mode at maximum REGEN basically repeating many times without oscillating Pitch Ramp Delay uses the TAP FX footswitch for a special function which we ll get to next so delay time is set only via the SPEED knob If you don t need tap and don t touch the TAP FX switch you basically have a nice clean delay mode available that s similar to the tonality of the Memory Lane Jr s 4th mode the QL does have slightly darker analog filtering and a slightly different voice
14. stortion pedal in front of the QL Standard QL delay Tap delay flashing 3PM 11 AM 12noon 12 noon green Ambient delay Pitch ramp delay 5 PM 10 AM 5 PM 12 noon flashing red Quantum Leap user manual v1 11 3 YY Diamond GUITAR PEDALS TRUE BYPASS OR DELAY TRAILS The Quantum Leap ships with the pedal set for delay trails When bypassed using the ON OFF switch the delay repeats will trail off naturally Should you prefer to have the Quantum Leap operate in True Bypass mode you will need to set the internal DIP switches as shown below ON ON JE O O O 12345 123 4 5 True Bypass Setting Buffered Bypass w Delay Trails i OOO L Note that switch 1 is not related to the bypass setting but to the Kill Dry mode noted below USING A PARALLEL FX LOOP If you plan on using the Quantum Leap in a parallel FX loop and would like to control the effect mix using your amp control we recommend setting the Quantum Leap to Kill Dry Mode In this mode the pedal will output only the delays and not the dry signal To select Kill Dry simply set DIP switch 1 as shown below ON ON E 123 4 5 123 4 5 Normal Mode Kill Dry Mode Quantum Leap user manual v1 11 4 YY Diamond GUITAR PEDALS CONTROLS EXPLAINED The Quantum Leap packs a lot of different types of funct
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