High power amplifier  

 

Housed in a convenient 2U package, the Martin MA4.8Q MA Series Power Amplifier 4-channel amplifier allows for the adjustment of maximum voltage peak, gain adjustment and has on-board network capability for monitoring and control. With these features it is now possible to specify identical amplifiers in an installation and then adjust each output to the very specific requirements of the speaker system. A typical large-scale system is a combination of high-powered speakers, full range in-fill speakers, 70/100V ceiling speakers, with an active speaker management system. With switchable outputs and on-board network capabilities, the Martin MA4.8Q MA Series Power Amplifier can be designed into a complete value engineered system handling all amplification tasks.

 

FEATURES

• Uncompromised sound quality
• Integrated CAT-5 based monitoring and control system
• Patented Class TD Topology
• Regulated Switch Mode PSU
• Voltage and Current Limiters
• Over-Temperature and Fuse Protection
• Four Discrete Channels

 

APPLICATIONS

• Churches
• Theatres
• Clubs
• Theme Parks
• Arenas
• Stadiums

 

TECHNICAL SPECIFICATIONS Martin MA4.8Q MA Series Power Amplifier

 

MAX OUTPUT POWER Four Channels

16 OHMS PER CHANNEL          625 W

8Ω OHMS PER CHANNEL         1000 W

4Ω OHMS PER CHANNEL         1200 W

Hi-Z: 70/100V    900 W

 

MAX OUTPUT VOLTAGE            

PER CHANNEL             100 Vrms

 

DISTORTION      

THD 20Hz - 20kHz AND 1 W      0.1%

THD AT 1kHz AND -1dB BELOW CLIP   0.05%

SIGNAL TO NOISE RATIO          112dB

CHANNEL SEPARATION @ 1kHz           70dB

FREQUENCY RESPONSE +0/-3dB        6.8Hz - 34kHz

 

INPUTS              

GAIN SELECTABLE (dB)           23, 26, 29, 32, 35, 38, 41, 44

DEFAULT GAIN             35dB

 

FRONT PANEL

GAIN CONTROLS          21 position detent

INDICATORS (common)              

NormadLink® Network connected           Blue LED

Power Average Limiter   Red LED

Power On          Green LED

Option Card (on)           Yellow LED

 

FRONT PANEL INDICATORS: (per channel)         

Signal present / Hi impedance warning     Green/Red LED

-10dB and -4dB output signal present      2 x Green LED

Voltage Peak Limiter (VPL) clipping          Red LED

Current Peak Limiter (CPL) active           Orange LED

Very High Frequency (VHF) warning        Yellow LED

High Temperature warning                     Yellow LED

Fault Warning                                     2 x Yellow LED

Mute                                                 2 x Yellow LED

 

REAR PANEL    

INPUT CONNECTORS   3-pin Phoenix, electronically balanced

OUTPUT CONNECTORS            Barrier strip 2-pole screw terminals

 

POWER             

OPERATION VOLTAGE             130-265 V / 65-135V

MINIMUM POWER-UP VOLTAGE 230V / 115V    171V / 85V

POWER AVERAGE LIMITER      Yes

SOFT START / INRUSH CURRENT DRAW          Yes / max 5A

 

DIMENSIONS     

WIDTH 483mm (19ins)

HEIGHT            88mm (3.5ins) 2U

DEPTH (incl. handles)    343mm (13.5ins)

 

WEIGHT           12kg (26.4lbs)

 

 Martin MA4.8Q MA Series Power Amplifier