Zoom B2.1u - Specifications and Troubleshooting; Technical Specifications Summary; Troubleshooting Common Issues

ZOOM B2.1u
35
Specifications
Effect types 47
Effect modules
Max. 9 simultaneous modules
Patches User area: 10 patches x 4 banks
Preset area: 10 patches x 4 banks
Sampling frequency
96 kHz
A/D converter 24 bit, 64 times oversampling
D/A converter 24 bit, 128 times oversampling
Signal processing
32 bit
Frequency response
20 Hz – 40 kHz +1 dB -3 dB
(with 10 kilohms load)
Display 2-digit 7-segment LED
Parameter LEDs,
Pedal assign LEDs
Input Standard mono phone jack
Rated input level
-20 dBm
Input impedance
1 megohm
Output
Standard stereo phone jack
(doubles as line and headphone jack)
Maximum output level
+5 dBm (output load impedance
10 kilohms or more)
Maximum phones output level
20 mW + 20 mW
(into 32 ohms load)
XLR jack (balanced output)
Input/output gain 0 dB
Output impedance 100 ohms
(HOT-GND)
(COLD-GND)
200 ohms
(HOT-COLD)
Control input For FP02 (FP01) /FS01
USB interface
PC interface: 16-bit (stereo configuration for
recording/playback)
Sampling frequency:
32 kHz, 44.1 kHz, 48 kHz
Power requirements
AC adapter 9 V DC, 300 mA (center minus
plug) (ZOOM AD-0006)
Batteries Four IEC R6 (size AA) batteries,
Approx. 6 hours continuous
operation (alkaline batteries)
Dimensions 165 mm (D) x 255 mm (W) x
79mm (H)
Weight 1200 g (without batteries)
Options Expression pedal FP02/
Foot switch FS01
• 0 dBm = 0.775 Vrms
• Design and specifications subject to change without
notice.
Troubleshooting
● No power
Refer to "Turn power on" on page 8.
●
Reverb effect does not operate
While a rhythm pattern is playing, the reverb
effect is not available. Stop the rhythm pattern
first (→ p. 12).
●
No effect processing occurs (when
using [BALANCED OUT] connector)
Check whether the [PRE/POST] switch is set to
POST (signal after effect processing).
●
High level of noise
Is ZOOM AC adapter being used? Be sure to use
only adapter for 9 V DC, 300 mA with center
minus plug (ZOOM AD-0006).
●
High-level noise is heard (when using
[BALANCED OUT] connector)
A ground loop may have been created among
connected devices. Check whether setting the
[GROUND] switch to "LIFT" results in an
improvement.
●
Battery life is short
Are manganese batteries being used? The use of
alkaline batteries is recommended.