EBS ValveDrive DI EFFECT Owner's Manual

Thank you for purchasing the
EBS ValveDrive pedal!
The EBS ValveDrive tube preamp/overdrive
pedal offers the possibility for classic and
traditional warm tube sounds up to hard and
pure tube distortion.
The ValveDrive pedal can make your bass
either glow or growl, whether you want your
instrument to sing or scream.
We hope you'll enjoy using the
EBS ValveDrive pedal!
The EBS Team
THE CONTROLS
FRONT PANEL
GAIN - Controls the overall gain and amount of overdrive.
BASS, MIDDLE AND TREBLE - The filter section of the EBS ValveDrive.
Controls the timbre of the sound and is very useful for refining overdriven
sounds. These filters are of classic passive style. Please refer to the filters
section for more info.
VOLUME- Controls the overall volume of the EBS ValveDrive.
ACTIVE FOOTSWITCH - When the footswitch is pressed and the LED is red,
the pedal is active. When deactivated the pedal is bypassed or in mute mode
(depending on the setting of the bypass/mute switch on the rear panel).
VINTAGE FOOTSWITCH - Controls the character of the Valvedrive. When
the LED is RED, the pedal is set to standard MODERN character. When the
LED is YELLOW, the VINTAGE mode is selected. The vintage character
changes the tube timbre, eq and compresses the signal over the gain stage.
REAR PANEL
INPUT JACK - Connect your instrument here.
PAD SWITCH (0dB/-10dB) - Selects operation for active or passive
instruments. Press this switch if you are using an active instrument or using
another pedal before the EBS ValveDrive.
DC POWER JACK - Connect the DC power supply to this jack. Use only a
stabilized power supply if not original EBS adapter AD9+.
1/4” OUTPUT - Connect this output to an amplifier or another pedal.
BALANCED OUTPUT (XLR) - Use this output to connect to e.g. a mixing
console or sound card.
GND LIFT SWITCH - Disconnects the ground from the balanced output.
EBS PROFESSIONAL BASS EQUIPMENT
MY PERSONAL SOUND
CRUNCH
_ +
VINTAGE OVERDRIVE
_ +
CLASSIC ROCK
_ +
The following examples below show a few of the many sonic
possibilities of the EBS ValveDrive.
SAMPLE SOUND SETTINGS
USERS MANUAL
INFORMATION
HOW
TO
FOR QUALIFIED SERVICE PERSONNEL ONLY!
CHANGE THE TUBE
THE FILTERS
The EBS ValveDrive is equipped with classical style passive filters
especially tuned for bass guitar. The following graphs show the
frequency response of the BASS, MIDDLE and TREBLE controls.
1) Remove the power from the unit and wait at least five
(5) minutes.
2) Carefully remove the chrome tube cover by losing the
four (4) holding bolts.
BASS
3) Replace the tube with same type, i.e. ECC83/12AX7.
MIDDLE
4) Attach the four mounting screws using moderate
tension.
Note: In each graph the other two
controls are set to maximum position.
TREBLE
WARNING!
To prevent fire shock hazard, do not expose
this appliance to rain or moisture. No user
serviceable parts inside. Refer servicing to
qualified service personnel.
BLOCK DIAGRAM
EBS VALVEDRIVE
FLAT FREQUENCY
RESPONSE
The special case when you
want a flat frequency response
from the passive filters is
obtained when BASS and
TREBLE controls are set to
MINIMUM, and the MIDDLE
control is set to MAXIMUM.
TECHNICAL SPECIFICATIONS EBS VALVEDRIVE
Nominal Input Level
Pad Attentuation
Input Impedance
Frequency Response
Gain Range
Filter Section:
Bass:
Middle:
Treble:
Output Impedance
Nominal Output Level
Tube Type
+0/-3 dB
min/center/max
type:
Attenuation:
type:
Attenuation:
type:
Attenuation:
Unbalanced
Balanced
Ruby Tubes
Power Requirements
Dimensions
Connection:
Width
Height
Length
Weight
-10 dBv
10 dB
1 Mohms
35 - 20.000 Hz
- / +6/ +26 dB
Bell
0 - 15 dB < 80 Hz
Notch
0 - 12 dB @400 Hz
Shelving
0 - 6 dB @5 kHz
100 ohms
-10 dBv
-20 dBv
Pin 2 pos, 3 neg
12AX7 AC5 HG+
9V DC, 700 mA,
Center Negative
135 mm (5.3")
75 mm (3.0")
165 mm (6.5")
960 g (2.1 lbs.)
Specifications are subject to change without notice.
EBS Sweden AB · Grindstuvägen 44-46 · SE-167 33 Bromma · Sweden
Phone: +46-8-7350010 · Fax: +46-8-7350005
Web: www.ebssweden.com
E-mail: [email protected]