Roland 115 用户手册

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Panel descriptions
 
D-BASS 210/115 Front Panel
 
1. INPUT Jack
 
Connect your bass guitar here.
This section features two jacks, PIEZO and NORMAL.
 
PIEZO jack:
 
Connect acoustic or electric basses equipped with piezo 
pickups to this jack. The ultra-high impedance circuitry 
provides a clear sound with minimal degradation in 
tone.
NORMAL jack:
Connect electric basses equipped with magnetic pickups 
to this jack. Connect to this jack when using preamped 
piezo pickups or when you have an effects processor 
connected between the bass and the amp.
You can use the PIEZO jack and the NORMAL jack 
simultaneously.
2. PICKUP TYPE switch
This switches the input circuitry of the NORMAL jack to 
match either an active or a passive pickup.
With the button pressed in, the input circuitry is 
switched to match an active pickup, and the input 
sensitivity is reduced (-10 dB).
3. GAIN Knob
This adjusts the input level.
4. PEAK Indicator
This lights up when the signals are distorted in the input 
section. If this lights frequently, it indicates that the input 
signal is in excess of the optimal level.
Turn the GAIN knob (3) to the left to reduce the gain. 
When set to the proper level, the indicator will light up 
briefly during the attack portion of a note when the bass 
is played with maximum force.
* Inputting in excess of the optimal level can cause unintended 
distortion and may prevent the COMPRESSION effect from 
functioning properly. Setting the level too low results in 
excess residual background noise.
* Be sure to check the input level each time you connect a 
different bass or have an effects device connected between the 
bass and the amp.
5. AMP TYPE Switch
You can select from the three COSM amp types.
6. SHAPE Switch
This effect alters the COSM amps’ tonal qualities. The 
particular effect obtained varies according to the amp 
selected with the AMP TYPE switch (5).
COSM AMPLIFIER
SUPER 
FLAT
This amp type reflects the true tone of the con-
nected bass, presenting the instrument’s own 
sound to the fullest.
This amp reproduces the full range of nuances 
produced by various performance tech-
niques, and faithfully recreates every detail of 
the expressive elements of a performance.
This is the perfect model for acoustic basses.
Provides a dynamic tone with an even wider 
range.
VINTAGE
This amp type models the standard bass amp 
sound, widely used ever since the electric bass 
first appeared.
It features a warm low end and contoured 
midrange.
The minimal fret noise makes it perfect for fin-
ger picking.
Provides a tone that boosts the fatness of the 
midrange.
210/115