User Manual
15
 q Is the expression pedal fully returned when  volume, [AMP/DR] 
VALUE1 knob (GAIN) and VALUE2 knob (LEVEL) are set as the 
target funciotn of the expression pedal?
3.  Eects don’t apply
 q Could an eect be o?
 q
Is the [MOD] VALUE 2 knob (DEPTH) or the [DLY] or [REV] VALUE 
2 knob (MIX) set to a low value?
 q Is the StompLab in Bypass mode? 
Refer to “Bypass and Mute” (p. 8) and cancel the Bypass function.
4. 
High frequencies are distorted when using [PDL] (PEDAL)  
AC (ACOUSTIC)
 q Are you applying too much drive? Lower the [AMP/DR] VALUE 
1 (GAIN) seing.
 q Are you using a bass that has high output humbucking pickups? 
Lower the volume of your bass.
5. 
Sound source connected to the  bass amp is distorted, or 
sounds wrong
 q Is the VALUE 1 knob (StompLab output jack connection volume) 
in [GBL] set at Ln (LINE)?
Set to AP (AMP).
 q Is the VALUE 2 knob (LEVEL) in [AMP/DR] or the VALUE 2 knob 
(MASTER LEVEL) in [GBL] set too high?
Specications
Number of eects:  Pedal types: 9
  Amp/Drive Models: 18
  Cabinet Models: 12
  Modulation types: 9
  Delay types: 8
  Reverb types: 3
  Noise Reduction: 1
  Volume Pedal: 1
Number of programs:  120 (20 user/100 preset)
Audio input:  INPUT (mono)
Audio output:  OUTPUT/PHONES (stereo)
Signal processing:  A/D conversion: 24 bit
  D/A conversion: 24 bit
Tuner:  Detection range : A0–E6
Calibration:  A=438 – 445 Hz
Power supply:  Four alkaline AA baeries or 
DC9V AC adapter (separately 
sold) 
Baery life  7.5 hours (using four alkaline 
AA baeries)
Dimensions (W X D X H):  207 X 125 X 64mm /
  8.15" X 4.92" X 2.52"
Weight:  780 g / 1.72 oz.
Included items:  Owner’s manual, four AA-size 
baeries
Options (separately sold):   DC9V AC adapter
*  Specications and appearance are subject to change without notice 
for improvement.










