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Roland KC-350 Keyboard Amplifier

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Roland KC-350 Keyboard Amplifier

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$230.00

4.5 (16)

2 Reviews

Find out who is using Roland KC-350

1 community setup

3 wishlisted

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Page last updated Jun 24, 2026

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5.0 (7)

$230.00 6 available Used

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Description

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The Roland KC-350 Keyboard Amplifier is a staple for musicians seeking versatile and reliable sound reinforcement. Designed with both practice and performance in mind, this amp delivers a 120-watt output, ensuring your keyboard's tones are heard loud and clear. Its four-channel capability allows you to connect multiple instruments and devices, making it perfect for solo gigs or full band settings. The KC-350 is equipped with a two-way speaker system that combines a 12-inch woofer with a horn tweeter to produce a rich and balanced audio output.

One of the standout features of the KC-350 is its onboard stereo mixing capabilities, which provide incredible control over your sound. Each channel has its own level control and there are dedicated EQ settings for the overall output, giving you the flexibility to tailor your sound to any venue. An auxiliary input accommodates additional sound sources, such as an MP3 player, while the XLR line output connects easily to recording devices or PA systems, making this amp an excellent choice for both live performances and studio work.

Key Features:

120-watt power output for robust sound
Four-channel stereo mixing for versatility
Integrated two-way speaker system
12-inch woofer and horn tweeter for balanced audio
XLR line output for connecting to PA systems
Auxiliary input for connecting external audio sources
Dedicated EQ for overall sound customization
Compact design suitable for various performance environments

Product specs

Brand	Roland
Model	KC-350 4-Channel 180-Watt 1x12" Keyboard Combo
Finish	Black
Year	2002 - 2025
Categories	Keyboard Amps
Color Family	Black
Number of Channels	4 Channels
Number of Inputs	9 Inputs
Output Power (Watts)	180
Reverb	None
Speaker Configuration	1x12"

FAQs

How many instruments can I connect to the Roland KC-350 at once?: The Roland KC-350 features 4 channels with 9 inputs, allowing you to connect multiple instruments simultaneously, making it ideal for performers using several keyboards or devices.
What is the power output of the Roland KC-350 Keyboard Amplifier?: The Roland KC-350 provides a robust 180 watts of power, delivering ample volume and clarity for live performances and rehearsals.
Does the Roland KC-350 have built-in reverb?: No, the Roland KC-350 does not include built-in reverb, focusing instead on delivering clear and powerful sound reproduction for keyboards.
What size speaker is used in the Roland KC-350?: The Roland KC-350 is equipped with a 1x12" speaker configuration, designed to provide a balanced and full-range sound suitable for keyboards.
Is the Roland KC-350 suitable for small gigs and rehearsals?: Yes, with its 180-watt output and versatile input options, the Roland KC-350 is well-suited for small gigs and rehearsals, offering clear and powerful sound.

Videos

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Eduardo “lalo” Astete Orellana

Opinión roland kc 350 amplificador 2: parte

Eduardo “lalo” Astete Orellana

JAM's Factory 楽器レンタル Roland KC-350

JAM's Factory 1996

HX3 Organ Module demo - no Leslie - Amazing internal sim into roland KC-350 keyboard amp

Norman Clarke

CEK SOUND AMPLIFIER KEYBOARD ROLAND KC350

ARWANI AZKA SOEROTO YUSUF

Reviews

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PROS

Superior build quality with durable carpet covering
Multiple channels with stereo capability enhance versatility
Delivers thunderous lows and clear sound quality
Ideal for both keyboard and digital piano
Sufficiently loud for live performances and practice
Accommodates various instruments like guitar and vocals
Supports up to 4 inputs with Low, Mid, and Treble EQ
Portable relative to its power and features

CONS

Heavy and cumbersome to transport
Original speaker may require upgrading for optimal performance

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Roland KC-350 Keyboard Amplifier.

Features and functionality

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The Roland KC-350, while loud enough for rock/pop gigs, weighs 25kg, which can be cumbersome for frequent transport between gigs.
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The DXR10's aux out maintains unity gain, ensuring monitor volume adjustments don't impact FOH levels, providing flexible on-stage volume control.
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The KC-350's output transistors, specifically models like A1962, are common points of failure and can be replaced to resolve power issues, as reported by multiple users.
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Comparisons

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Yamaha DXR10 mk1 is a lighter alternative to the KC-350, with a recommended setup allowing for independent volume control without affecting FOH levels.
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Use cases and applications

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Yamaha DBR10, at 10.5 kg, offers versatility and is favored for its sound quality in smaller gigs without a PA system.
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User experience

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Some users prefer powered speakers like QSC CP8s for their frequency range and response, though they may distort at high volumes when competing with loud bands.
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A user successfully resolved their KC-350's fuse issue by replacing the output transistor A1962, costing around $4.00, highlighting a cost-effective repair approach.
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Setup and maintenance

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Several owners suggest checking the power supply and output transistors first when diagnosing fuse-blowing issues on the KC-350, as these components often fail in high-heat conditions.
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When troubleshooting, disconnecting the transformer from the power board can help localize issues, as it allows testing of the power supply and amplifier board separately.
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4.5 out of 5

Based on 2 Reviews and 16 Ratings

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ebowglow

1822

over 10 years ago

Great amp for synths or electronic drum kits!

I've mainly used this amp for synthesizers. It can get VERY loud! It has up to 4 inputs and has Low,mid, and treble EQ. Its great for practice and even live shows. I believe there's and optional cabinet out there so it can be ran as a stereo set ( possibly remember reading somewhere) so correct me if I'm wrong. But it has been a solid amp.