COSM Amp
Modeling
Roland’s COSM technology uses
multiple modeling methods to
re-create the sound of the most
popular amps in history. You’ll find
everything from vintage and
modern tube amps to solid-state
and acoustic amps, plus a range of
speaker cabinet selections.
Superb Digital
Effects
With onboard effects ranging from
delay, reverb and chorus to flanger,
phaser and wah, you can create
just about any tone imaginable.
Best of all, using the VGA-Series’
effects feels just like a stomp box,
thanks to simple knob-based
controls.
New Guitar
Modeling
Using an optional GK-2A Divided
Pickup, guitarists can select and
“play” a variety of guitar models—
a marvel of technological
achievement. Choose from electric,
hollow-body, and miked and
unmiked acoustic models; pickups
and placements; and even unique
“guitar-meets-synth” models.
Feed Forward
Processing Inside
Thanks to Roland’s Feed Forward
Processing technology, DB-Series
amps can maximize their efficiency
by “sensing” the incoming bass
signal and adjusting the amplifier
and speaker response
characteristics in advance.
COSM Bass Amp
Modeling
More than just EQ curves, the
DB-Series’ COSM Bass Amp
Modeling can mathematically
re-create every aspect of vintage
and modern Solid State, Tube and
Overdriven amp sounds—complete
with natural tube compression
effects.
Unique D-Chorus
Effect
Roland’s D-Chorus is a split-
frequency chorus effect that
allows bass players to add rich
chorus to the high frequencies
without muddying the lows.
A front or top-panel knob lets
players adjust the effect’s intensity.
Roadworthy
Construction
All DB-Series amps are built with
high-quality components for years
of trouble-free use and include a
DI connector for direct connection
to PA systems. The larger
DB-900/700 also feature convenient
side handles and casters for easy
transportation.
GK-Compatible
The VGA-Series is compatible with
Roland’s GK Divided Pickup.
This slim, hexaphonic pickup
allows each string to be output as
a separate signal that can be
independently processed—
essential for using the VGA-Series’
guitar modeling and features.
●Powerful 50W/12” speaker enclosed in a portable and rugged cabinet
●11 COSM amp models from combos to stacks, plus 11 COSM guitar models
including polyphonic effects*
●10 high-quality DSP effects including spring reverb;
handy Recording/Headphone output
*Guitar modeling and polyphonic effects require optional GK-2A Divided Pickup.
●Rated Power Output 130W (65W + 65W) ●Patches 160 (Preset: 80 + User: 80) ●Speakers 12” (30 cm) x 2 + horn tweeter x 2 ●Connectors GK In, Input (High, Low), Headphones,
Output (L/Mono, R), Ext In (L/Mono, R), Exp Pedal, EFX, Delay (TIP:ON/OFF, RING:TAP TEMPO), Chorus, Reverb, MIDI (In, Out/Thru) ●Power Consumption 160W (AC 117/230/240 V)
●Dimensions (incl. casters) 770 (W) x 300 (D) x 640 (H) mm (30-3/8” x 11-13/16” x 25-1/4”) ●Weight 37.6 kg (82 lbs. 15 oz.) ●Accessories GK Connecting Cable C-13A (5 m), Casters (x 4)
●Rated Power Output 160W ●Speakers 12” (30 cm) x 1, Horn Tweeter x 1 ●Memory A, B (2 memories) ●Connectors Input
(High, Low), Headphones, Balanced DI, Insert (Send, Return), Line Out (XLR type, Balanced 1/4” TRS phone type), Foot
Switches (TIP: A/B, Ring: Manual, Chorus) ●Power Consumption 150W (AC 117/230/240 V) ●Dimensions 515 (W) x 335 (D) x 485
(H) mm (20-1/4” x 13-1/8” x 19-1/8”) ●Weight 23.5 kg (51 lbs. 13 oz.)
●Rated Power Output 250W ●Speakers 15” (38 cm) x 1, Horn Tweeter x 1 ●Memory A, B (2 memories) ●Connectors Input
(High, Low), Headphones, Balanced DI, Insert (Send, Return), Line Out (XLR type, Balanced 1/4” TRS phone type), Foot Switches
(TIP: A/B, Ring: Manual, Chorus) ●Dimensions (incl. casters) 578 (W) x 407 (D) x 598 (H) mm (22-13/16” x 16-1/16” x 23-9/16”)
●Weight 34 kg (75 lbs. ) ●Power Consumption 200W (AC 117/230/240 V) ●Accessory Casters (x 4)
●Rated Power Output 50W ●Patches 10 (Recalled from Panel), 40 (Recalled from MIDI Foot Controller) ●Speakers 12” (30 cm) x 1 ●Connectors GK In, Input, Recording Out/
Headphones, Ext In, Exp Pedal, Foot Switch, MIDI In ●Power Consumption 55W (AC 117/230/240 V) ●Dimensions 586 (W) x 260 (D) x 480 (H) mm (23-1/8" x 10-1/4" x 18-15/16")
●Weight 18.5 kg (40 lbs. 13 oz.) ●Accessory Casters (x 4)
Futuristic modeling amps with unbeatable tone Powerful, dynamic sound for discriminating bassists
Roland most advanced modeling amplifier based on proprietary COSM®technology.
●Professional 320-watt bass amp with Feed Forward Processing™(FFP)
●7-speaker system: 4 x 10” speakers, horn tweeter and 2 x 12” Passive
Radiator speakers
●COSM®Amp Modeling for realistic Solid State, Tube and Tube Drive amp
sounds
●Built-in compression, 3-band EQ and split-frequency D-Chorus effects
●Amp settings can be stored in program memory for instant recall via
buttons or optional footswitches
●High-quality DI output (XLR type), plus 1/4” output for recording
●Powerful 250-watt bass amp with 15” speaker, horn tweeter and FFP technology
●COSM Amp Modeling for realistic Solid State, Tube and Tube Drive amp sounds
●Built-in compression, 3-band EQ and dynamic D-Chorus effect
●Amp settings can be stored in program memory for instant recall via buttons or
optional footswitches
●Compact 160-watt bass amp with 12” speaker, horn tweeter and FFP technology
●COSM Amp Modeling for realistic Solid State, Tube and Tube Drive amp sounds
●Built-in compression, 3-band EQ and dynamic D-Chorus effect
●Amp settings can be stored in program memory for instant recall via buttons or
optional footswitches
●Rated Power Output 320W ●Speakers 10” (25 cm) x 4, Horn Tweeter x 1, Passive Radiator 12” (30 cm) x 2
●Memory A, B (2 memories) ●Connectors Input (High, Low), Headphones, Balanced DI, Insert (Send, Return),
Line Out (XLR type, Balanced 1/4” TRS phone type), Foot Switches (TIP: A/B, Ring: Manual, Chorus)
●Power Consumption 270W (AC 117/230/240 V) ●Dimensions (incl. casters) 654 (W) x 489 (D) x 889 (H) mm
(25-3/4” x 19-1/4” x 35”) ●Weight 64 kg (141 lbs. 2 oz.) ●Accessory Casters (x 4)
The ultimate touring amp for professional bass players.
A solid performer with surprisingly powerful sound.
Impressive bass tone in an ultra-compact cabinet.
An affordable choice with powerful guitar and amp modeling capabilities.
●Outstanding stereo tone via powerful 65W + 65W amplifier,
2 x 12” speakers, and 2 horn tweeters
●20 amp models, 26 guitar models, plus selectable tuning and
digital Capo effect*
●4 independent effects processors; 80 Preset and 80 User
memory locations
*Guitar modeling requires optional GK-2A Divided Pickup.
GK-2A Divided Pickup
US-20
Unit Selector
GKC-10 (10m) /GKC-5 (5m) /GKC-3 (3m)
GKP-4
GK Parallel Box GK Cables
■COSM AMP TYPE
●CLEAN JC: JC-120, CLASSIC 1: American Twin, CLASSIC 2: VO Clean, MELLOW: Poly ●CRUNCH CLASSIC 1: PR-Reverb, CLASSIC 2: VO Crunch,
CLASSIC 3: American Tweed, MODERN: Match ●LEAD CLASSIC I: MS1987(I), CLASSIC I+ II : MS1987(I+ II ), MODERN 1: BG, MODERN 2: SLDN,
METAL 1: 5150, METAL 2: VGA Metal ●SPECIAL LAYER1, LAYER 2, FUZZ ●FULL FLAT, SHAPED, FAT
■COSM GUITAR TYPE
●ST CLASSIC, MODERN, S-S-H ●LP CLASSIC, MODERN, Jr ●TEL CLASSIC, MODERN, H-S ●HOLLOW SEMI, FULL, RICK ●ACOUSTIC STANDARD,
ROUND, METAL, NYRON STR, BANJO, UKULELE ●SPECIAL BOWED, PIPE, ORGAN, BRASS, SOLO, SYNTH 1, SYNTH 2, FILTER BASS
■EFFECTS
●EFX WAH, SLOW GEAR, COMP, TREMOLO, PHASER, FLANGER ●DELAY MONO, PANNING, HOLD ●CHORUS SPACE, WARM, BRIGHT
●REVERB PLATE, ROOM, HALL
■COSM AMP TYPE
●COMBO JC CLEAN, AMERICAN CLEAN, TWEED, BRITISH, MATCH ●STACK CLASSIC I, CLASSIC I+ II, MODERN, METAL, R-FIER ●ACOUSTIC
Original flat type with Acoustic Guitar Simulator
■COSM GUITAR TYPE
●ELECTRIC ST, LP, HOLLOW, 12 STRING ●ACOUSTIC STANDARD, 12 STRING ●SPECIAL SYNTH LEAD/PAD, SLOW GEAR, POLY OCTAVE, SITAR
■EFFECTS
●EFX CHORUS, FLANGER, PHASER, TREMOLO, WAH ●DELAY CLEAR, WARM, DOUBLING ●REVERB PLATE, SPRING
*DB-700
*DB-900/700/500 share the same
front/rear panel design.
■Options
■VGA-Series Block Diagram