First Act MA002 Instruction Manual

The MA002 Amplifier operates with two 9-volt alkaline batteries. Two battery compartments can be found 

on the back of the amp, on either side of the speaker.

Replace both batteries by following these steps:

Open the battery compartment door, pinch the tab, and pull the door to open.

To install a new battery, snap the +/- terminals of the battery into place on the connector pad.

Place the attached battery into the compartment.

Close the compartment door.

Do not mix old and new batteries. Do not mix alkaline standard (carbon-zinc) and rechargeable (nickel-

cadmium) batteries.

First Act
745 Boylston Street

Boston, MA 02116 USA

firstact.com

Connect guitar or other instrument here (1/4” jack).

2.  VOLUME 

Controls output level of amplifier.

3.  LED 

Light indicates power on/off. 

4.  GAIN 

Controls input level. Increasing gain adds distor-

tion, or an overdriven rock tone; 

decreasing gain produces a cleaner sound.

5.  TONE 

Turn right to add treble/reduce bass. 

Turn left to add bass/reduce treble.

6.  POWER 

Turns amplifier on/off.

4 watts RMS

60 Hz ~ 6 kHz

Speaker: 

4" / 8W / 4 ohms

Input Sensitivity: 

26 mV

Dimensions: (LxWxH) 

8" x 3.25" x 7.5"

Weight: 

3 lbs.

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

SPECIFICATIONS