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The Rear Panel

1

) Jam-Along Jack

This is the Jam-Along jack connection of the BP-8 Valve. Connect the headphone output of CD or cassette player here
using an 1/8” stereo cable. Use the headphone volume control of the CD or cassette player to balance the level with that
of the BP8.

2

) Input 

This is the BP-8 Valve’s audio input. Plug your bass in here. 

3) Headphone Output

- 1/4” stereo plug for headphones. The headphone level is controlled by the main output 

level knob.

4) Left/Low Output 

This is the BP-8 Valve’s left main audio output in Stereo mode and the Low Frequency output in Hi/Low (biamp) mode.

5

) Right/High Output 

This is the BP-8 Valve’s right main audio output in Stereo mode and the High Frequency output in Hi/Low (biamp)

mode.  

6)  AC Line Input -

This is the AC adapter receptacle. Use only the included PS 0920 power supply. 

7)  Power Cord Strain Relief -

This strain relief is used to prevent the power supply from being disconnected from the power jack.

2

3

4

5

6

1

7

BP-8 Valve

User Guide

Section -1  Introduction

5

Summary of Contents for BP-8 Valve

Page 1: ...Please visit Digitech Electronics on the World Wide Web at http www digitech com User s Guide ...

Page 2: ...e Neutral Earth Ground CONDUCTOR L N Brown Blue Green Yellow Black WIRE COLOR White Green U K MAINS PLUG WARNING A moulded mains plug that has been cut off from the cord is unsafe Discard the mains plug at a suitable disposal facility NEVER UNDER ANY CIRCUMSTANCES SHOULDYOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET Do not use the mains plug without the fuse cover in place Repla...

Page 3: ...EN 55020 1991 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and EMC Directive 89 336 EEC as amended by Directive 93 68 EEC Digitech President of Digitech 8760 S Sandy Parkway Sandy Utah 84070 USA Tel 801 566 8800 Fax 801 566 7005 Effective July 15th 1998 European Contact Your Local Digitech Sales and Service Office or Internati...

Page 4: ...perations About the BP 8 Valve s Modes 8 Program Mode 8 Bank Mode 8 Edit Mode 8 Store Copy Mode 9 Bypass Mode 9 Tuner Mode 9 Notch Filter 10 Output Modes 10 Section 4 Effects and Parameters About the Parameter Matrix 11 Compressor 11 Preamp 12 Equalizer 13 Noise Gate 13 Expression Pedal 14 Wah 14 Mod Pitch 15 Chorus 15 Flanger 16 Phaser 16 Tremolo 16 Panner 16 Pitch Shifter 17 Pitch Bending Whammy...

Page 5: ...Amping output available in the BP 8 Apply Power Note When applying power to the BP 8 Valve it is recommended that the OUTPUT knob be turned down prior to powering up the unit Adjust Input The INPUT knob is used to set the amount of signal that is entering the BP 8 It is recommended that the input level be set so that the SIGNAL COMP LED constantly lights while playing and the CLIP LED lights only ...

Page 6: ...BP 8 Valve User Guide IV ...

Page 7: ...u proceed any further make sure the following items are included 1 Owner s Manual 1 Digitech BP 8 Valve Bass Preamp Processor 1 Power Adapter 1 Warranty card Please save all packing materials They were designed to protect the unit from damage during shipping In the unlikely event that the unit requires service use only the factory supplied carton to return the unit BP 8 Valve User Guide Section 1 ...

Page 8: ...on to install the same on products previously manufactured 6 The consumer forfeits the benefits of this warranty if the product s main assembly is opened and tampered with by anyone other than a certified Digitech technician or if the product is used with AC voltages outside of the range suggested by the manufacturer 7 The foregoing is in lieu of all other warranties expressed or implied and Digit...

Page 9: ...ameter LEDs The Effect LEDs are Compressor Preamp Equalizer Noise Gate Wah Mod Pitch Delay and Reverb This matrix shows you exactly what effects and parameters are in use 3 Display Window The display window shows all current operating and programming information and is comprised of two parts the numeric LED displays and the Signal Clip and Store indicator LEDs The first numeric LED in the display ...

Page 10: ...ogram to another User Program location for later use The EDIT button enters Edit mode and allows you to edit the User and Factory programs 5 Parameter Select Buttons The LEFT and RIGHT Parameter Select buttons allow you to navigate the horizontal Effect LEDs of the Parameter matrix The UP and DOWN Parameter buttons allow you to navigate the vertical parameter LEDs of the Parameter matrix These key...

Page 11: ...adphone level is controlled by the main output level knob 4 Left Low Output This is the BP 8 Valve s left main audio output in Stereo mode and the Low Frequency output in Hi Low biamp mode 5 Right High Output This is the BP 8 Valve s right main audio output in Stereo mode and the High Frequency output in Hi Low biamp mode 6 AC Line Input This is the AC adapter receptacle Use only the included PS 0...

Page 12: ... Adjust the Output Level to match the sensitivity of your mixer Be careful as too much output level can distort the input stage of your mixer channels Running Direct into a Mixer Pan Mute 10 0 5 10 20 30 5 L R Mute L R Mute L R Mute L R 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2...

Page 13: ...eo will be selected Now use the Value UP and DOWN buttons to select High Low Bi amping and it will appear as follows HiLo Now to select the Cross Over frequency at which the BP 8 will route the output signal to either the High or Low outputs press the parameter RIGHT arrow button and the currently selected Cross Over frequency will be displayed Now use the Value UP and DOWN arrow buttons to select...

Page 14: ...ram numbers from the previous mode will be retained When the UP and DOWN footswitches are used in Bank mode you will scroll through Banks only When you change a Bank using this method the previous Program number is not displayed with the new Bank The LEDs above foot switches 1 4 will begin flashing indicating that you can choose a Program in the selected Bank by pressing one of the four foot switc...

Page 15: ...he footswitches When you exit this mode the BP 8 Valve will default to the last mode you used Bypass does not affect the Notch Filter nor the Hi Low crossover frequency settings TUNER MODE Allows you to tune your bass Enter Tuner mode by pressing footswitches 1 2 simultaneously tune will appear briefly in the display window followed by to indicate that you are in Tuner mode To begin tuning play a ...

Page 16: ... Dual Mono mode Stereo mode and Hi Lo Biamp mode The procedure for changing the Output modes is as follows 1 From Program mode press and hold the UP and DOWN footswitches for 3 seconds The display will then show the current output mode 2 Use the Value UP and DOWN buttons to select the desired Output mode Dual mode is a mono output mode that sends the same program material to both outputs Stereo mo...

Page 17: ...enerally fast attack times are useful with aggressive playing slower times with more sustained notes Too fast an attack time can cause slight distortion on long sustained tails of notes so experiment to get the right setting for your application Threshold Determines the signal strength which activates the compressor This control is calibrated in dB below full output As the threshold becomes more n...

Page 18: ...g The BP8 also has cutting edge distortion preamp settings for some of today s modern rock bass sounds HSuS Dark Distortion SAt Saturated Tube Distortion Od Overdrive Distortion Gain Controls the amount of distortion produced by the BP 8 Valve High settings produce greater gain and drive while low settings offer better dynamic control of tone Ranges from 1 100 On Level Sets the output level while ...

Page 19: ...s Low and High to choose from each with 5 attack settings Choose a Low threshold if noise is not a problem and a High threshold if there is a noise problem The longer attack settings provide a volume swell effect after playing a note each with a different time constant The Attack settings are Attack 1 0ms millisec onds Attack 2 100ms Attack 3 250ms Attack 4 500ms and Attack 5 1 2 seconds Noise Gat...

Page 20: ...meter button until the 4th LED down on the vertical row is lit 4 Use the Value UP and DOWN arrows to select the parameter you want linked to the pedal in the display 5 Set the Min and Max values between which you want the parameter to vary The BP 8 Valve offers a 3 types of wah which can be used with or without Distortion for that classic Wah Wah sound On Off Turns the Module on and off Type Selec...

Page 21: ...ices with different phasing characteristics Chorus Parameters are as follows Speed Controls the speed of the chorus sweep Ranges from 0 to 100 Depth This Parameter sets the sweep depth intensity of the chorus Ranges from 0 to 100 Delay Sets the amount of delay present in the chorus effect Ranges from 0 to 100 The BP 8 Valve also offers exceptionally rich studio quiet flanging Flange Parameters are...

Page 22: ...ct by offering it to the bassist It provides totally transparent volume modulation Speed Controls the tremolo speed speed of modulation Ranges from 0 to 100 Depth Adjusts the intensity of the tremolo effect Ranges from 0 to 100 An auto panner is a modern relative of the tremolo that modulates the sound from left to right at a given rate Parameters are as follows Speed Controls the panning speed sp...

Page 23: ...y are as follows Whammy Harmony Dry Signal Added Octave Up OcUP Octave Up Octave Down OuOd 2nd Up 2ndU Octave Down 4th Down Ou4d 2nd Down 2ndd 4th Down 3rd Up 4d3u 4th Down 4thd 4th Up 5th Up 4u5u Octave Down OcUP 5th Up 6th Up 5u6u 5th Up Octave Up 5uOu Detune detn Whammy The Whammy Parameter reflects the current setting of the Whammy effect As this parameter is modified the pitch of the original...

Page 24: ...ess Bass Simulator which is ideal for creating a fretless sound as well as an emulation of a Bowed bass sound Amount Time Controls how fast the Fretless effect swells Range is from 1 to 10 Depth Controls how far the Fretless effect progress Higher settings sound more nasal or bowed Range is from 0 to 100 Dly Regen Sensitivity Controls the sensitivity of the Fretless effect Higher settings combined...

Page 25: ... 2 Tap Level Controls the level of the delay in both Delay1 and Delay 2 Ranges from 0 to 100 Time The available delay time ranges are 0 no delay to 3 5 seconds The displayed value is in milliseconds Feedback Controls the amount of delayed signal that is fed back into the input of the Delay Higher settings result in more delay repeats Ranges from 0 to 99 and Repeat Hold Delay 1 and 2 Tap Parameters...

Page 26: ...bAth Bathroom Stud Studio SPrg Spring Level Controls the amount of Reverb signal to be mixed in with the dry signal Ranges from 0 to 100 Decay Time The amount of time it takes for the Reverb to fade to inaudibility Ranges from 1 to 10 The BP 8 Valve s Master Volume controls the overall volume level of the selected program The level can be controlled with the Expression pedal for balancing levels i...

Page 27: ...button The BP 8 will reset to factory condition 3 The display will now prompt you to re calibrate the expression pedal by reading PEDL CAL 4 When the display reads toe dn rock the pedal forward and press any one of the flashing footswitches 5 When the display reads toe up rock the pedal back and press any one of the flashing footswitches The expression pedal will now be calibrated and the BP 8 wil...

Page 28: ...e 1 12AX7 Plate Voltage 100volts Input Section Connector 1 4 Unbalanced TRS Nominal Level 8 dBu Maximum Level 10 dBu Impedance 470 kohms Output Section Connector 1 4 TRS Nominal Level 4 dBu Maximum Level 18 dBu Impedance 50 ohms General Frequency Response 20 Hz 16 kHz S N ratio Greater than 95 dB ref max signal 22 kHz measurement bandwidth Total Harmonic Distortion Less than 0 04 1 kHz Memory Capa...

Page 29: ...ompressed Slap F43 Octo Cavern F44 Growl Wah Bank 5 F51 Fat Sustain F52 Beefy AutoWah F53 Fat Pick F54 Mid Scoop Bank 6 F61 Distorted 5ths F62 Space Slap F63 Facination F64 Wah Baby Bank 7 F71 Grindy Tremolo F72 Octo Solo F73 Sound on Sound F74 Industrial Envelope Bank 8 F81 Mid Punch F82 Drippy F83 Reggae Mon F84 Pedal Fretless Bank 9 F91 Pedal Glissando F92 Whammy Up F93 Dirty Tremolo F94 Octaba...

Page 30: ...Amherst New Hampshire 03031 U S A FAX 603 672 4246 DigiTech Whammy and S DISC II are registered trademarks of the Harman Music Group Incorporated Copyright 1998 the Harman Music Group Incorporated Printed In U S A 8 98 Manufactured in the U S A BP 8 Valve 18 2268 A Please Visit Digitech on the World Wide Web at http www digitech com ...

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