Roland ac-90 Owner's Manual

Page of 80
78
Specifications
Rated Power Output
45W + 45W
Nominal Input Level (1 kHz)
GUITAR Channel: -10 dBu
MIC/LINE Channel: -50 / -10 dBu
AUX IN: -10 dBu
Nominal Output Level (1 kHz)
DI/TUNER OUT: +4 dBu
LINE OUT: +4 dBu
SUB WOOFER OUT: +4 dBu
* 0 dBu = 0.775 Vrms
Speakers
Woofer 20 cm (8 inches) x 2
Tweeter 8 cm x 5 cm (3 inches x 2 inches) x 2
Controls
(GUITAR Channel)
PICKUP Switch (PIEZO/MAGNETIC) 
SHAPE Switch
VOLUME Knob
Equalizer Knobs (BASS, MIDDLE, TREBLE)
CHORUS Switch
(MIC/LINE Channel)
PHANTOM Switch 
SELECT Switch (MIC/LINE)
VOLUME Knob
Equalizer Knobs (BASS, MIDDLE, TREBLE)
CHORUS Switch
CHORUS Knob
REVERB/DELAY Knob
(ANTI-FEEDBACK)
FREQUENCY Knob
START Button
MUTE Switch
MASTER Knob
POWER Switch
Indicator
CHORUS (GUITAR Channel, MIC/LINE Channel)
ANTI-FEEDBACK
MUTE
POWER
Connectors
GUITAR Channel Input Jack (1/4” phone type)
MIC/LINE Input Jack (XLR type, 1/4” phone type)
AUX IN Jacks (RCA phono type,1/4” phone type)
DI/TUNER OUT Jack (1/4” TRS phone type)
LINE OUT Jacks (XLR type, 1/4” phone type)
SUB WOOFER OUT Jack (1/4” phone type)
PHONES Jack (1/4” TRS phone type)
FOOT SWITCH Jack (1/4” TRS phone type)
Power Supply
AC 117 V, AC 230 V, AC 240 V (50/60 Hz)
Power Consumption
30 W
Dimensions
464 (W) x 303 (D) x 326 (H) mm
18-5/16 (W) x 11-15/16 (D) x 12-7/8 (H) inches
Weight
11.7 kg
25 lbs 13 oz
Accessory
Carrying Case
Owner’s Manual
Options
Foot Switch: BOSS FS-5L (Mute On/Off), BOSS FS-5U, FS-6
Connection Cable: PCS-31
962a
* In the interest of product improvement, the specifications and/
or appearance of this unit are subject to change without prior 
notice.
AC-90_egfispd.book  Page 78  Tuesday, August 14, 2007  10:09 AM