Peavey KB1 20W Keyboard Amplifier, 8″ Extended Range Speaker

Peavey KB1 20W Keyboard Amplifier, 8″ Extended Range Speaker


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Peavey KB1 20W Keyboard Amplifier, 8″ Extended Range Speaker


The Peavey KB 1 is perfect for practice, pre-gig warm-ups, songwriting or any application where quality sound is important, but a large, bulky unit is just too much. The design of the KB 1 makes it a compact workhorse amplifier for keyboardists, acoustic guitar players and other musicians needing full-range output in a small package. At 20 Watts RMS, the KB 1’s heavy-duty 8″ speaker gets the job done! And for situations that require headphones, the KB 1 delivers. Two channels are provided, featuring 1/4″ inputs, level controls and two-band active equalization (Low, High). The front panel headphone jack automatically disables the internal speaker when connected.

Special attention was given to make the KB 1 as compact and light as possible to maximize portability, yet provide a “big” sound. Go ahead…pick it up! At 17.4 lbs., it’s perfect for “on-the-go” projects. And the size? Well, let’s say it’ll fit just about anywhere.

Like all of the KB Series, the KB 1 is built for the road. First, extremely tough black covering is provided along with heavy-duty corners. Second, a serious handle is available at the top of the unit. Third, a heavy-duty metal grille is provided to protect the speaker.

Peavey KB 1 Specifications

Rated power and load
20W RMS into 4 Ohms
Power at clipping (typical)
20 W RMS into 4 Ohms (5% THD, 1 kHz, 120 VAC line)
Total harmonic distortion
12 W RMS, 60 Hz to i0 kHz, 4 Ohms (typically below 0.2%)
Power consumption
50 Watts, 50/60 Hz, 120 VAC
Preamp Section
The following specs are measured at 1i kHz with the master EQ flat at 0 dB.
Nominal values are with Levels at 5
Minimum values are with Levels at 10
Input impedance
220 kOhms
Nominal input level
-4.5 dBV, 600mV RMS
Minimum input level
-20.6 dBV, 93 mV RMS
Maximum input level
+12 dBV, 4V RMS
Frequency response
+0, -2 dB, 0 Hz to 10 kHz
Headphone Out
Stereo headphone jack, mono signal
Load impedance
4 Ohms or greater
Nominal power output
20 mW into 4 Ohms (Switching jack disconnects the internal speaker when plug is inserted)
System hum and noise
80 dBV (both channels operating)
Equalization (both channels)
+/-15 dB at 80 Hz and 8 kHz, shelving
Dimensions (W x D x H)
13.75 x 9 x 14.25″ / 34.93 x 22.86 x 36.20cm
17.4lbs / 7.89kg


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