The KC-400 Stereo Mixing 4-Channel Keyboard Amplifier from Roland features 150W output power, four line-input channels, a dedicated auxiliary input, and support for an XLR vocal mic. Paired with the built-in 12″ woofer and horn tweeter, the keyboard amplifier can be used by musicians and producers to amplify pianos, organs, synthesizers, rhythm machines, and other electronic instruments.
The KC-400’s cabinet is a twin bass-reflex design that provides extended low-frequency response without distortion. There is an auxiliary channel with 1/8″ and RCA inputs for connecting smartphones, music players, or other devices. Channel 1 also includes an XLR input, allowing you to plug in a vocal mic for even more versatility.
This keyboard amplifier integrates into many environments. A 1/4″ line output enables you to interface with PA systems, stage monitors, and recording devices. There’s also a sub-out jack for connecting to a powered subwoofer, with level tied to the amp’s master volume for one-touch control. Plugging into the phones jack across the top of the unit, will mute the onboard speakers. This is suitable for private practice sessions and checking sounds on stage with headphones.
Features
- Compact Amplifier with 150W Output Power
- 12″ Woofer & Increased Bass Reproduction
- Two-Way Speaker System with Horn Tweeter
- 1/4″, RCA, XLR, and 1/8″ Inputs
- 1/4″ Headphone, Sub Output & Line Output
- Metal Jacks for Increased Durability
Specifications
| Rated Power Output | 150 W |
| Nominal Input Level | @ 1 kHz Channel 1 (Balanced, L/Mono, R): -50, -20 dBu Channel 2 (L/Mono, R): -20 dBu Channel 3 (L/Mono, R): -20 dBu Channel 4 (Monitor In L/Mono, R): -20 dBu Auxiliary In (L, R, Stereo): -10 dBu Stereo Link (In): 0 dBu |
| Nominal Output Level | @ 1 kHz Line Out: (L/Mono, R) +4 dBu Stereo Link (Out): 0 dBu Sub Out: +4 dBu |
| Speakers | 1 x Woofer: 12″ (30 cm) 1 x Horn Tweeter: Not specified by manufacturer |
| Controls | Shape button Power switch Channel 1: Mic/Line knob Channel 2: Line knob Channel 3: Line knob Channel 4: Line knob, Output select knob Phones: Volume knob Equalizer: Low knob, middle, and high knob Master knob |
| Indicator | Power |
| Connectors | Channel 1 Jack: XLR type Channel 1 (L/Mono, R) Jacks: 1/4″ (6.3 mm) phone type Channel 2 (L/Mono, R) Jacks: 1/4″ (6.3 mm) phone type Channel 3 (L/Mono, R) Jacks: 1/4″ (6.3 mm) phone type Channel 4 (Monitor In L/Mono, R) Jacks: 1/4″ (6.3 mm) phone type Auxiliary In (L, R) Jacks: RCA phono type Auxiliary In (Stereo) Jack: 1/8″ (3.5 mm) stereo miniature phone type Sub-Out Jack: 1/4″ (6.3 mm) phone type Phones Jack: Stereo 1/4″ (6.3 mm) TRS phone type (mono signal output) |
| Power Consumption | 40 W |
| Dimensions | 19.3 x 15.0 x 18.5 ” (490 x 385 x 470 mm) |
| Weight | 48.5 lb (22 kg) |
| Package Weight | 58.2 lb |
| Box Dimensions (LxWxH) | 22.5 x 22 x 18″ |
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