PA-4.12D

Offering top power, superior performance and full professional operating features in a roadworthy compact chassis, the PA-D Series are perfect for even the most demanding sound reinforcement installation and touring applications.

Features
Overview
Specification
Downloads

Full operating features:

Independent volume controls
Balanced XLR inputs and outputs
Bridge
Parallel
Quad channel-input
Independent clip limiters (compressor)
3 Selectable input sensitivities and speak on outputs.

Full safety/reliability features:

Two variable speed fans for cooling
Soft start turn on
Noise-free on-off
Independent DC and thermal overload protection on each channel
Short circuit and speaker protection
Built-in current limiter.

Very high power and channel density
Class-D Technology
Quint independent power supply
Four-channel/Two-channel flexibility
XLR input and output connectors
Self protection design
Efficient cooling system
Comprehensive protection
Power Factor Correction (PFC)
Built in DSP

Power Output

Ratings (RMS @ 1% THD @ 230VAC)

Model	Total Channels	4Ω Per Channel	8Ω Per Channel	4Ω Bridged	8Ω Bridged	70/100V
PA-4.8D	4	800W	400W	2*2500W	2*1600W	2*1600W
PA-4.12D	4	1250W	1250W	–	–	4*800W
PA-2.25D	2	2500W	1600W	–	–	2*1600W

Specifications

THD	< 0.05 % (20 Hz – 20 kHz, 8 Ω load, 3 dB below rated power)
Signal-to-Noise Ratio	> 120 dB (A-weighted, 20 Hz – 20 kHz, 8 Ω load)
Frequency Response	20 Hz – 20 kHz ± 0.25 dB / 20 Hz – 20 kHz ± 0.15 dB (8 Ω load, 1 dB below rated power)
Output Circuitry	Class D – full bandwidth PWM modulator with ultra low distortion
Input impedance	15 kΩ balanced
Damping Factor	> 2000 (8 Ω load, 1 kHz and below)
Gain and Level
Amplifier gain selectable (Sensitivity)	0.7 / 1.0 / 1.44 Volt
Level adjustment (per ch)	Front-panel potentiometer

Digital Signal Processor
In / Out	4 In / 4 Out
DSP	32 bit / 96kHz DSP
Control	USB
Preset	20
Input A,B,C,D
Equalizer	10 Band, PEQ / LS6 / LS12 / HS6 / HS 12/ APF
Volume	-60dB to 5dB
Delay	0 to 4.99ms
Output 1,2,3,4
Equalizer	10 Band, PEQ / LS6 / LS12 / HS6 / HS 12/ APF / APF-1
Delay	0 to 9.99ms
Limiter	-19dB to 0dB
Crossover	HPF / LPF
Input Link	A, B, C, D
Output Link	1, 2, 3, 4
Connectors and Switches
Input connectors (per ch)	3-pin XLR, electronically balanced
Output connectors (per ch)	3-pin XLR, electronically balanced
Amplifier Output PA-4.8D & PA-4.12D	4 Pin Speakon 1: +1-1 CH-1, +2-2 CH-2 & 4 Pin Speakon 2: +1-1 CH-3, +2-2 CH-4
Amplifier Output PA-2.25D	4 Pin Speakon 1: +1-1 CH-1, +2-2 CH-2 & 4 Pin Speakon 2: +1-1 CH-2
Mode	PA-4.8D Stereo / Parallel / Bridge
	PA-4.12D Stereo / Parallel
	PA-2.25D Stereo / Parallel
Power on/off	on front-panel switch
Cooling	Fans, front-to-rear airflow
Front-panel indicators
Per channel PA-4.8D & PA-4.12D	0dB / Signal / Limit / Protect
Per channel PA-2.25D	Power / Output signal / Limit / Protect
Parallel PA-4.8D & PA-4.12D	1 & 2, 3 & 4 Channels
Parallel PA-2.25D	1 & 2
Safety
Protection Circuits	Input limiter, short circuit protection, DC protection of output, under & over voltage protection,
	SOA protection, intelligent mains fuse protection, power stage overload protection,
	temperature protection for transformer
Power
Type	Universal & regulated switch mode power supply with Power Factor Correction
Operating voltage	Universal Mains, 90-270V AC
Mains	Power Cord
Model	PA-4.8D	PA-4.12D	PA-2.25D
Amplifier Dimension	482 mm x 374 mm x 88 mm (W x D x H)	482 mm x 487 mm x 88 mm (W x D x H)
Packing Dimension	585 mm x 471 mm x 195 mm (W x D x H)	585 mm x 535 mm x 195 mm (W x D x H)
Size	2U
Net Weight	9.60 kg	13.80 kg	14.30 kg
Gross Weight	11.10 kg	15.70 kg	16.20 kg

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