Peavey

Peavey 573180 KB 3 60-Watt 1x12 Keyboard Amplifier

The Peavey KB 3 delivers 60 watts through a 12-inch speaker with four independent channels for versatile keyboard amplification.

$420.00*
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*Price sourced from Amazon.com. Last updated:Oct 25, 2026.Price and availability are subject to change — details.

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Overview

The Peavey KB 3 is a 60-watt keyboard amplifier built around a 12-inch speaker, designed to reproduce the full frequency range that keyboards, digital pianos, and synthesizers demand. Unlike guitar amplifiers that color the signal, the KB 3 aims for clean, accurate reproduction so your instrument sounds the way it was intended. The four separate input channels are a major advantage, effectively turning the amp into a compact mixer — you can plug in a keyboard, a drum machine, a microphone, and a backing track source all at once without needing additional gear.

Channels 1 and 2 each provide 1/4-inch inputs with 2-band EQ for straightforward tone adjustment, while Channel 3 steps up to a 3-band EQ for more detailed sound sculpting on your primary instrument. When you need more volume and projection, connecting an extension cabinet bumps the power rating up to 80 watts, making the KB 3 scalable from practice rooms to smaller performance venues. Peavey's reputation for rugged, road-worthy construction means this amp is built to handle the demands of regular use, making it a solid choice for gigging keyboardists who value versatility and reliability in a single combo unit.

Key Features

60 watts of clean Peavey power

Extension cab capability extends power rating out to 80 watts

Channels 1 & 2 have 2 band EQ - Channel 3 has 3 band EQ -

Channel 3 has 3 band EQ

12 inch speaker with tweeter - Effects send/return - Balanced XLR main out

Specifications

Brand
Peavey
Model
KB 3 (573180)
Power Output
60 Watts (80 Watts with extension cab)
Speaker
1 x 12 inch
Channels
4
Channels 1 & 2 EQ
2-Band
Channel 3 EQ
3-Band
Channels 1 & 2 Inputs
1/4" jack
Extension Cabinet
Yes (increases to 80W)

Frequently Asked Questions

The KB 3 has 4 separate channels, allowing you to connect multiple keyboards, a microphone, drum machine, or other line-level sources simultaneously.
The KB 3 has four separate channels, allowing you to connect multiple instruments or audio sources simultaneously.
Yes, connecting an extension cabinet increases the power output from 60 watts to 80 watts, giving you additional volume and projection.
Channels 1 and 2 each have a 2-band EQ for basic tone shaping, while Channel 3 features a 3-band EQ that gives you more detailed control over bass, midrange, and treble frequencies.
Yes, by connecting an extension cabinet to the KB 3, you can extend the power rating to 80 watts, which provides additional headroom and volume for larger venues.
Channels 1 and 2 feature 2-band EQ, while Channel 3 offers a 3-band EQ for more detailed tone shaping.
Channels 1 and 2 use standard 1/4-inch inputs, which accept keyboards, guitars, and other line-level instruments.
The KB 3 features a single 12-inch speaker, which provides a full-range sound suitable for keyboards and other electronic instruments.
Channels 1 and 2 accept standard 1/4-inch instrument or line-level inputs. The remaining channels provide additional connectivity options for versatile source routing.
Yes, the multi-channel design with separate EQ controls makes it useful for acoustic instruments, drum machines, and even as a small PA for vocals when needed.