8 x XLR Balanced Inputs and Outputs
Channels fully linkable – 8 in, 8 out; 2 in, 4 out; through to 1 in, 8 out
15dB of Gain per channel
Individual level controls
Intuitive, 'user friendly' layout
Flawless audio performance
Applications:
Driving Active self-powered Loudspeaker Arrays
These often require +4 to +10dB to reach their rated output.
Driving multiple Power Amplifiers
Conference centres
Educational facilities
Broadcast line driving
About the MaxiDRIVE
The ARX MaxiDrive Line Driver and Distribution Amplifier provides 8 High Current Line outputs from 8 inputs. As well, each Output can be linked to the preceding one to provide any configuration required.
For example: 8 In, 8 Out, 2 x sets of 1 In, 4 Out, 1 In, 8 Out or similar can be set up simply by pressing the Link switches to link a channel to its predecessor.
The MaxiDrive's intuitive layout and clear, uncluttered labelling enables a quick and easy solution to the increasing demands of today’s standards of audio production.
Probably the single biggest improvement you can make to a Line Array system?
With the advent and widespread use of large self powered line array loudspeaker systems, the change in system signal drive requirements has been missed by many Signal Processor / DSP Processor Designers and Manufacturers.
Here at ARX we realise that the real work doesn't end at the male XLRs on the rear of the system processor. More consideration needs to be given to what follows on in the signal chain, plus the demands multiple loudspeaker input impedance loads place on processor output stages.
The perceived grittiness and lack of clarity at high operating levels sometimes attributed to the Loudspeaker system's performance could more likely be attributed to the inability of the preceding signal processors in the audio chain to drive low impedance loads at high voltage levels over long reactive cables, which present both a capacitive and inductive load to the output drive stage.
In short, you need a line driver that can comfortably drive multiple inputs per channel with the headroom required for accurate audio reproduction. The MaxiDrive is that line driver. Its very low output impedance virtually eliminates any deleterious cable loading effects and high frequency loss.
Enter the MaxiDRIVE
The circuit topography chosen for the ARX MaxiDrive 's output has more in common with a power amplifier than the low current opamp derived circuits usually favoured by designers, which are expected to operate into loads of 600ohms and higher.
Improving the performance of Non Powered Systems as well.
The ARX MaxiDrive will of course happily provide the current drive and voltage swing to drive multiple power amplifiers in large non self-powered systems, removing the requirement for individual signal splitters and line buffers in separate amplifier racks.
Conventional loudspeaker processor output stages can find driving multiple Amplifier racks using line input transformers too complex a load to retain their low distortion performance. The ARX MaxiDrive will retain its specs while driving multiple amplifier channels.
Input impedance
Max Input Level
Max gain through unit
CMRR
Freq response
Distortion
Max output Level
Output Impedance
Signal to Noise ratio
Dynamic Range
Balanced 40K ohms unbalanced 20K
+22dB
+15dB
–60dB @ 1KHz
20Hz - 20KHz ± .25dB
0.004% at 1Khz, +10dB output
+23dB
< 20 ohms
-92dB unweighted.
115dB
Front Panel
Channels 1 – 8 Level controls
Channels 1 – 8 Clip LEDs
Channels 1 – 8 Link Switches and status LEDs
AC 'power connected' LED
Marker panel for labelling individual channel assigns
Rear Panel
Channels 1 – 8 Input and Output Balanced XLR connectors
Wired Pin 3 –, Pin 2 +, Pin 1 Ground
IEC 3 pin AC connector and integral fuseholder. Replace fuse with correct value only: 100–120V AC 5 amp, 220–240 V AC 3 amp