ACM L300 Power Amplifier


Designed with touring sound professionals in mind, the ACM L Series power amplifiers faithfully produce high power with low distortion in an extremely aconomical package.

With advanced anti-shock, over current, output short cut, DC offset circuit design, the L Series amplifiers offer the protection that ensures safe & trouble free shows night after night.

The L Series professional power amplifiers provide ACM’s renowned sonic integrity while providing exceptionally high power retings in a compact, lightweight, 2U package.

The L Series amps feature Automatic Clip Limiting (ACL) to protect connected drivers; tunnel-cooled, high efficiency heat sinks. And veriable-speed DC fans to limit the operating temperature and extend amplifier life.



Minimum Guaranteed Power L300

Stereo, 4 ohms (per ch.)


Stereo, 8 ohms (per ch.)




Load Impedance (Note: Safe with all types of loads) Stereo Bridge Mono

4-8 ohms

Frequency Response
(at 1 watt, 20Hz - 25 kHz)

20Hz - 20kHz

Phase Response
(at 1 watt , 20Hz to 20 kHz)


Signal to Noise Ratio below rated power A-weighted


Total Harmonic Distortion (THD) at 1 full
bandwidth power, from 20 Hz to 20 kHz


Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1, from full rated output to -35 dBt


Damping Factor (8 ohm): 20 Hz to 400 Hz


Crosstalk (below rated power,
20 Hz to 20 kHz)


Common Mode Rejection
(CMR)(20 Hz to 1 kHz)


DC Output Offset (Shorted input)


Input Impedance (nominally balanced, nominally unbalanced)

20 koΩm, 10 koΩm
Sensitivity (volts RMS) for full rated
power at 8 ohms
0.775V, 36dB
Input/Output Connectors XLR/NL4
AC Line Voltage and Frequency Configurations
Available (±10%)
~220-240 V and 50/60 Hz
AC Line Current (both amplifiers draw no more
than 90 watts at idle)
Construction L300
Shipping 19kg