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PA2 Series

Dual Channel Professional Amplifiers

The PA2 Series amplifiers are dual channel power amplifiers in a single rugged chassis while providing extremely high-quality sound. The PA2 Series amplifiers are especially suited for monitor application in clubs or professional touring applications where a rugged, compact amplifier is required.



 Very light weight, 250W x 2, only 8.5kg.

 High power density. All channel models built with 2U high chassis with only 10 inch depth.

 Compact size is excellent for touring or fixed installation applications.

 Powerful, high current, low noise toroidal transformer matched with 30,000µF capacitance.

 To prevent large start-up currents, a soft power-up limiter is standard on all PA-2404 models.

 Ultra-low distortion (<0.01%) circuitry and high current output stage for punch.

 Switchable limiter reduces clipping distortion and protects speakers from being overdriven.

 Selectable high pass filter 35 or 70Hz, prevents woofer speaker over excursion or when full band-width is not required.

 Balanced XLR input and two balanced TRS phonejacks for cascading amplifiers.

 Quiet, auto-variable speed fan, forced air cooling system.

 Detent volume controls.

 Dual / Parallel / Bridge Mode operation.



Condition PA-2104 PA-2154 PA-2254 PA-2404
Output(rms) 4 ohm one Ch. 120W 170W 280W 450W
Output(rms) 4 ohm two Ch. 100W x 2 150W x 2 250W x 2 400W x 2
Output(rms) 8 ohm one Ch. 70W 100W 170W 280W
Output(rms) 8 ohm two Ch. 60W x2 90W x 2 150W x 2 250W x 2
Output(rms) 8 ohm bridged 200W 300W 500W 800W
Distortion At rated power <0.01%
I/O connector  

XLR x 2, TRS x 4, SPEAKONTM x 2

Status indicator   signal, Clip, Protect, ON
Controls   2 Level controls, Mode selectors, Limiter, enable switches, 2 HP Filter selectors, GND/Lift switch
Protection   Turn-on, Short, DC, Over temperature
Dimension 2U Rack 3 1/2"(H) x 19"(W) x 10"(D)
Cooling   One variable speed fans Two variable speed fans
Freq. response At rated power 20Hz~20kHz +0, -0.5dB
Freq. bandwidth At rated power 10Hz~50kHz +0, -3 dB
Input sensitivity At rated power 0.775 Vrms
IM distortion 60Hz and 7kHz


Input impedance Each leg to GND

10k ohm

Damping factor 1 kHz@8 ohm >200

<-100 dB

Noise At rated power

<-105 dB

Slew rate   20V/uS 30V/uS 30V/uS 40V/uS
Voltage gain   31dB 32dB 33dB 34dB
Power supply   300W 500W 700W


Max current draw AC115V(230V) 3(1.5)A 4(2)A 5(3)A 10(5)A
Weight lbs (kg) 15 (7) 17 (8) 20 (9) 24 (11)
 All specifications subject to change without prior notice
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