Roland KC-990 Stereo Mixing Keyboard Amplifier

Full-Range Stereo Sound for High-Impact Performances
The KC-990 offers full-range stereo sound reproduction with 320 watts of power (160 watts x 2), two newly designed 12-inch speakers, and two custom horn tweeters. This allows the KC-990 to accurately reproduce the wide frequency range of 88-note stage pianos, organs, and synthesizers, as well as rhythm machines and other electronic instruments.

Built-In Stereo Effects
The KC-990 comes equipped with four different effects for sweetening your live sound. The chorus effect is derived from Roland’s world-famous JC-series amps, providing unmatched depth and dimension through the KC-990’s stereo speakers. The amp also includes tremolo and rotary effects that work great with organs and electric pianos, plus a lush stereo reverb for vocals and instruments. By connecting optional footswitches, you can turn the effects on/off and control rotary speed hands-free while performing.

Expand Your Setup with Stereo Link
If you ever need to expand your inputs or sound coverage, the KC-990’s Stereo Link function makes it simple. First off, the number of available inputs doubles when you connect to the two stereo link jacks on a second KC-990. In addition, the left and right signals of connected instruments are split across the two amps, providing super-wide stereo dispersion for even more impressive sound.

Onboard Mixing for Big Rigs and Full Groups
Roland’s most powerful KC amp is a complete stereo sound system in a single package, making it ideal for backline amplification, stage monitoring, and even main PA use. With four stereo line input channels available, you can connect keyboards, percussion pads, drum machines, and more. There’s also a dedicated auxiliary input to plug in a smartphone or music player for backing tracks. Channel 1 includes an XLR input too, allowing you to connect a vocal mic for even more versatility. The Aux In channel supports 1/8-inch, RCA, and ¼-inch connections, and features a handy monitor function for working with guide tracks on stage.

Versatile Connectivity for Performing, Recording, and Practice
With its rear-panel connectivity, the KC-990 integrates easily into any playing environment. Stereo line outputs are provided on both XLR and ¼-inch jacks, offering simultaneous connections for interfacing with PA systems, stage monitors, and recording devices. The XLR outputs also have a switchable ground lift, which eliminates hum that can sometimes occur when connecting to a main PA. There’s a headphones jack too, perfect for silent practice sessions and discrete monitoring of guide tracks and instruments on stage.

Features:

• Flagship stereo keyboard amplifier with 320 watts of power
• Onboard mixer with four stereo input channels, stereo auxiliary input, and master EQ
• Two newly developed custom 12-inch woofers and two custom horn tweeters
• Built-in effects: reverb, chorus, tremolo, and rotary
• Control rotary speed and effects on/off with optional external footswitches
• Flexible I/O with XLR mic input, stereo XLR and ¼-inch line outputs, headphones output, and more
• Stereo Link function for chaining two KC-990s
• Metal jacks for increased durability
• Casters and side-mounted handles for enhanced mobility

Specifications:

• Rated Power Output: 320 W (160 W + 160 W)
• Nominal Input Level (1 kHz):
  • CH1 (BALANCED, L/MONO, R): -50-- -20 dBu
  • CH2 (L/MONO, R): -20 dBu
  • CH3 (L/MONO, R): -20 dBu
  • CH4 (L/MONO, R): -20 dBu
  • AUX IN/MONITOR IN (AUX 1､AUX 2､AUX 3): -10 dBu
  • STEREO LINK (IN): 0 dBu
• Nominal Output Level (1 kHz):
  • LINE OUT (L/MONO, R): +4 dBu
  • LINE OUT (BALANCED L, R): +4 dBu
  • STEREO LINK (OUT): 0 dBu
• Speakers:
  • 30 cm (12 inches) Woofer x 2
  • Horn Tweeter x 2
• Controls:
  • POWER switch
  • GND LIFT switch
  • [CH1]
  • MIC/LINE knob
  • EFFECT button
  • [CH2]
  • LINE knob
  • EFFECT button
  • [CH3]
  • LINE knob
  • EFFECT button
  • [CH4]
  • LINE knob
  • EFFECT button
  • [EFFECT]
  • EFFECT knob
  • ROTARY SPEED button
  • [AUX IN]
  • LEVEL knob
  • MUTE SPEAKER button
  • MUTE LINE OUT button
  • [EQUALIZER]
  • LOW knob
  • MIDDLE knob
  • HIGH knob
  • [PHONES]
  • VOLUME knob
  • MASTER knob
• Indicator:Power
• Connectors:
  • CH1 (BALANCED) jack: XLR type
  • CH1 (L/MONO, R) jacks: 1/4-inch phone type
  • CH2 (L/MONO, R) jacks: 1/4-inch phone type
  • CH3 (L/MONO, R) jacks: 1/4-inch phone type
  • CH4 (L/MONO, R) jacks: 1/4-inch phone type
  • AUX IN/MONITOR IN
  • AUX 1 (L/MONO, R) jacks: 1/4-inch phone type
  • AUX 2 (L, R) jacks: RCA phono type
  • AUX 3 (STEREO) jacks: Stereo miniature phone type
  • PHONES jack: Stereo 1/4-inch TRS phone type (mono signal output)
  • STEREO LINK (IN, OUT L, OUT R) jacks: 1/4-inch phone type
  • LINE OUT (L/MONO, R) jacks: 1/4-inch phone type
  • LINE OUT (BALANCED L, R) jacks: XLR type
  • FOOT SW jack: 1/4-inch TRS phone type
• Power Consumption: 98 W
• Accessories: Owner's Manual, Caster x 4
• SIZE AND WEIGHT:
  • Width: 759 mm (29-15/16 inches)
  • Depth: 470 mm (18-9/16 inches)
  • Height (including casters): 585 mm (23-1/16 inches)
  • Height (excluding casters): 534 mm (21-1/16 inches)
  • Weight: 42 kg (92 lbs 10 oz)