Roland V-DRUMS TD-20 Owner's Manual page 12

Features
Top Quality Signal
Processing
Each instrument assigned to trigger 1–15 head and rim inputs
has an individual three-band equalizer and compressor(p. 38).
There is also a multi-effects unit with reverbs, delays, flanger,
chorus, pitch shifter, phaser, ring modulator, overdrive, etc.
(p. 40) There's also Ambience, with a new room "shape"
feature in addition to being able to change wall materials, size,
etc. (p. 40) A master Compressor/EQ lets you apply it to
individual kits or for all of the kits (p. 43). All effects are
simple to understand and use. Via the top panel, you can also
turn all the effects on or off individually.
Functions For Stage
The group faders on the top panel let you make quick changes
as needed during performance (p. 24). You can play drum kits
in any desired order (Drum Kit Chain, p. 82). The +/- buttons
are large enough to be pressed with a drum stick. (Don't HIT
them!) Another very useful function allows you to send the
click sound ONLY to the headphones if desired (p. 78). An
audio input (stereo) for custom monitoring (MIX IN jack, p.
19) is also provided. The MIX EDIT function allows immediate
editing of volume, Ambience send level, and MFX send level
using the group faders (p. 37).
Sequencer
Recording and playing back patterns is very easy. The 6 part
backing section, (including drums) can be used for live or
recording performances. Recording directly from the pads to
the percussion part is a great new feature, too (p. 75).
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Advanced Tempo Functions
Each KIT can have it's own tempo setting. The visual indicator
helps you count off the tempo of a song without needing to
hear the click (p. 59). Tap Tempo function allows you to set
tempo from all trigger inputs or the preview button (Tap
tempo, p. 53).
Expansion Board
The TD-20's bottom panel provides the access for the future
Expansion Board, which will not only add new sounds, but
provides a system upgrade using Flash ROM (p. 86, p. 88).
MIDI Sound Module
Potentials
Percussion sets are accessed on a different MIDI channel than
the drums. They can be played from the internal sequencer or
external MIDI source (SPD type pad etc.) and feature a 128
note map. And with 262 backing instruments available, there
are sounds for all types of music (p. 98).
V-LINK function
V-LINK (
Roland that allows linked performance of music and visual
material. By using V-LINK-compatible video equipment,
visual effects can be easily linked to, and made part of the
expressive elements of a performance. By using the TD-20 and
Edirol DV-7PR together, connected pads can be used to switch
the Edirol DV-7PR's images (clips/palettes) (p. 84).
) is functionality promoted by