Home

INSTRUCTIONS / INFORMATION

image

Contents

1. In exactly the same way a studio engineer will first amplify a dry guitar signal before applying additional processing The INPUT COMP control allows the user to vary the gain of this preamplifier Turning this control clockwise increases the overall gain of the pedal This also increases the amount of compression The guitar will become increasingly more touch sensitive Too much gain and the preamplifier will clip and distort Eventually high gain settings will also serve to boost unwanted guitar pickup noise Compression is greatly reduced at lower gain settings as much of the signal entering the compressor section falls below the compressor s internal threshold Signal level must exceed this threshold in order to initiate gain reduction In this scenario only the signal peaks are compressed The INPUT COMP control also varies the amount of signal routed from the output of first compressor to the input of the second refer to the block diagram This greatly affects compression levels in the second compressor stage Ratio The Ratio control allows the user to adjust the amount of gain reduction applied for any given increase in guitar signal At the lowest ratio setting doubling the input signal an increase of 100 will result in the output increasing by 19 At the highest ratio setting the output would rise by only 0 2 for the same increase in input signal The latter case represents extreme Limiting The SlideRig
2. SlideRIG DUAL CHAINED LIMITING AMPLIFIER Key Features INSTRUCTIONS INFORMATION e 100 Class A discrete signal path e Chained compressors for more squash e Two user presets e Ultra fast FET response e Massive gain of 75dB at zero compression e Internal Attack amp Release presets e Studio grade discrete preamplifier e Low noise electronics e Selectable True or Buffered Bypass e 50 hours life from single 9V PP8 cell e Optional external power 9 18V DC e Traditional Through Hole PCB Our goal was to reproduce the slide guitar tones first heard on Little Feat s classic album Dixie Chicken The tone is clean and transparent with an almost infinite shimmering sustain For many this represents the ultimate in slide tone In the studio the Little Feat tone was achieved by daisy chain connecting two Urei 1176 FET compressor channels The 1176 has a fast response unique character Block Diagram Compressor Section and smooth compression Chaining the compressor sections allows the character to RHYTHM PRESET be retained whilst vastly increasing the 99 epee rere Sas se gt amount of compression This level of compression is generally referred to as Limiting as the signal is maintained at a Q consistent level Vabe an Varban Variable Gain ae l a Fae arene Our 1176 inspired Cali76 circuit forms the coe cat backbone of the SlideRig with two identical Cali76 blocks be
3. developed by Simon Keats of UK company Keats Audio Simon has worked for a number of big name audio companies on a full time basis and as a design consultant Simon can be reached by email telephone or by post and will be happy to help with any enquiries Email simon origineffects com Telephone 0800 810 1070 International 44 800 810 1070 Address Simon Keats Origin Effects First Floor Office Unit C6 Station Yard Thame Oxfordshire OX9 3UH UK Simon Keats Origin Effects is not affiliated with Urei or Universal Audio in any way This product draws inspiration from the Urei 1176 compressor but does not feature any like for like circuitry
4. ing utilised in a true dual chained topology intemal Selectable Attack amp Rekka i l l I l l l l l I l l l I l l l l iri crower Selectable i Attack amp Release l i I l l The unit features switch able user settings providing the user with separate rhythm and lead presets The most common scenario being the use of a subtle compression for quieter passages and a fuller compression with a clean level boost for solo work INPUT COMP OUTPUT k in Output A studio grade 1960s style preamp works as an interface between the guitar and the first compressor section Just like the compressor blocks the preamp uses discrete Class A electronics for the purest tone possible Varablefaain ji EEA EEA Intemaliy Selectable Attack amp Relsisa Internally Selectable Attack amp Release The pedal can be powered from a single 9V battery or from a 9V to 18V DC power supply A higher voltage external supply will increase the dynamic range of the unit A ee a erea Cte SG aac and permits the use of hotter input signals HERE SLT SE BST EEE Overall the sound will be cleaner especially at extreme settings ee ee Figure 1 Block Diagram of Compressor Section Conceptually Simplified SlideRIG Input Comp Control The SlideRig features a very nice studio grade input preamplifier This works as an interface between the guitar and the compressor sections
5. ngle notes Figure 5 Attack amp Release settings Comp 1 Attack Slow Comp 1 Release Medium Comp 2 Attack Slow Comp 2 Release Fast Reducing the Attack time to a very short time will result in undesirable distortion being generated this will be heard to a greater extent when playing bass notes The Release control determines the duration of any gain reduction This would be measured from the time that compression is triggered to the point that the compressor has returned to its idle state For maximum effect when processing guitar the Release must be set so that the compressor responds fully to every note played If so the release time must be short enough for the compressor to fully recover in the short time between one note ending and the next note beginning Figure 5 shows the Attack Release jumpers in their default positions There are two sets of Attack amp Release jumpers one for each of the chained compressors refer to the block diagram Settings are applied to both user presets Treble Lift Selection When processing a signal with large amounts of compression there is a tendancy for treble frequencies to be slightly rolled off This results in a smoother tone which some may like and others may dislike The SlideRig features an internally selectible Treble Lift function This reduces the amount of compression applied at treble frequencies and results in a fuller treble response For
6. offers the user insane amounts of Ratio and higher levels WILL generate distortion artifacts particularly when processing chords If this is a problem just select a lower Ratio setting Output The Output control simply varies the level of signal present at the pedal s output jack This can be set in order to keep the overall effected level close to the dry bypass signal Alternatively the level can be increased to help project a guitar solo ORONS OUTPUT RATIO INPUT COMP O 0 O OUTPUT RATIO INPUT COMP 0 Q0 Q OUTPUT RATIO INPUT COMP Figure 2 Useful Settings a low compression b medium compression c high compression Bypass Mode Internal Selection The bypass mode can be selected internally by changing the positions of four internal jumper connectors True Bypass can be obtained with all four jumpers in the lower position A low impedance or buffered bypass mode can be selected by moving all four jumpers to the upper position In this mode the pedal will ensure that signal integrety is preserved even when driving long cable runs Jumpers can be simply pulled away and pushed back into place Spare jumpers can be easily obtained if required Ea Pal a Figure 3 J4 J5 J6 J7 Bypass Jumper Connectors f y F igure 4 Changing the jumper position on J4 Rhythm Solo Presets Pressing the SOLO switch toggles the unit between RHYTHM amp SOLO modes In RHYTHM mode the th
7. ree dials on the RHS of the pedal will be active and will offer full control over user parameters In SOLO mode the RHS dials become inactive and the dials on the LHS become active in their place Attack amp Release Internal Selection Attack amp Release controls are all too often misunderstood which is unfortunate as they are instrumental in achieving a usable sound In most cases Attack amp Release parameters should be adjusted to optimise the compressor s dynamic response to that of a particular instrument However they can SlideRIG also be adjusted to create strong dynamic effects The SlideRig gives the user some scope to adjust Attack amp Release through the use of internal jumper connectors It has been assumed that once a preferred setting is found that the user will rarely need to adjust these parameters The Attack control determines the time taken for the compressor to react to the presence of a signal i e the delay from the instant when you play the note to the moment the compressor actually reduces the gain The longer the Attack time delay the more pronounced the beginning of each note will sound In the context of the guitar you may make the following observations when adjusting Attack settings Increasing Attack time highlights the percussive snap of strongly picked notes Reducing Attack time may impart a spongy feel to the character of the compressor especially when digging in to si
8. the truest Little Feat tone leave the Treble Lift jumper in the off position Battery amp External Power The internal 9V battery will provide good quality operation for approximately 50 hours After this time the user may choose to fit a fresh battery This can be done easily by removing the four screws from the base of the enclosure From here the new battery just clips into place Be careful not to knock any of the components on the circuit board Alternatively an external supply can be used A high quality regulated supply should be chosen to avoid damage from voltage surges and other over voltage conditions The connector should be the 2 1mm type with the centre pin Wired Negative For best performance the pedal should be powered from an 18V supply This will increase the headroom allowing cleaner w Figure 6 Treble Lift jumper Featuring three positions Off Part partly enabled Full fully enabled SlideRIG processing of conventional guitar signals This will also permit the use of hotter source signals such as active guitar pickups It s unnecessary to remove the battery when using an external supply There is no risk of damage to either the battery supply or pedal However as is the case with all battery powered goods old batteries are prone to leaking and so should not be left installed for prolonged periods of time About the Designer Origin products are currently being

Download Pdf Manuals

image

Related Search

Related Contents

Grundig 800 MILLENNIUM Stereo Receiver User Manual  取扱説明書 - 日本電気  CS8550Di-50  Greenheck Fan DFD-150X series User's Manual  

Copyright © All rights reserved.
Failed to retrieve file