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AmbiDrive Three Channel Amplifier

Channels A and B 140W RMS / 8 ohms, 180 / 4 ohms

Sub Channel 160W RMS / 8 ohms, 210W / 4 Ohms,
All Channels driven


PowerDrive
MicroDrive

ZR350
ZR550
ZR850

ZX3200

ZA 800
ZA 600
ZA 400
ZA 5.1

SX1500
SX3000

ZR C series

Innovation
A three channel amplifier (A + B + Sub) designed for our very popular Ambience series of installation speakers, but also eminently suitable for any similar Sub/Satellite speaker system. A distillation of our experience gained through years of making compact, powerful amplifiers.
Designed to be a straightforward, convenient way to supply all amplifier functions within the one unit, the AmbiDrive can easily handle any professional medium power applications.

Smart Technology Inside
plug-in card A and B input connectors (XLR and jack, for added convenience) on the rear panel feed into an onboard plug-in Sub crossover card. This can be customised for non-ARX systems, but normally sums the signal below 100Hz in both channels and presents it at a separate Sub output connector. For a satellite speaker/sub woofer system, the AmbiDrive is all the amplifier you’ll ever need!

What if you don't need a Sub?
If you'd prefer to use the Sub channel for something else - monitors, for example - then simply plug into the Aux to Sub Channel connector on the rear, and all the power of the Sub channel is available to use as a full range output.
We've done everything we can to make the AmbiDrive the most useful, flexible amplifier solution.

Stable temperature
Dual variable speed cooling fans circulate air through ARX’s proprietary ‘UltraFin™’ heatsink to stabilise the AmbiDrive temperature. When the amp is idling, so are the fans. When the internal temperature rises, so does the fan speed to maintain an optimum temperature.

heatsink closeup<<<UltraFin heatsink detail

AmbiDrive weight

Some amplifiers are just designed heavy, because it takes more time and effort and money to design them light! At ARX, we’ve invested in extensive R & D to solve the weight problem.
The AmbiDrive weighs just 12 kilos (26 lbs) - light enough for a single person to carry and install.
Using a high efficiency low mass toroidal transformer, coupled with advanced computer modelling techniques has enabled us to put the strength where it’s needed, and to reduce unnecessary weight where possible.

Speaker Protection

We’ve also done intensive research into amplifier protection, in order to design a system that really does work in the real world. Thus the AmbiDrive has relay switched protection circuits that instantly disconnect the speakers if a potentially damaging signal is detected.
You’ll appreciate the fact that it’s a re-settable circuit, too, not a simple ‘one time only’ crowbar system that has to be stripped down to be replaced.

Built to Last

We believe that when you compare all these standard features to any other amplifier, you’ll see why the ARX AmbiDrive should be your next amplifier.

As a company, ARX is dedicated to producing pro audio products that consistently deliver the power and the quality that audio professionals expect. The AmbiDrive is proof of our commitment - an amplifier that works as hard as you do at keeping your clients coming back for more.

AmbiDrive Specifications

Channels A and B 140W RMS / 8 ohms, 180 / 4 ohms, Sub Channel 160W RMS / 8 ohms, 210W / 4 Ohms, All Channels driven


Rear Panel Details


Input Connectors

Balanced 1 x Female XLR per channel. Wired Pin 3 - Cold, Pin 2 + Hot, Pin 1 Electronic Ground, 1 x TRS balanced jack connector. Tip Hot, Ring Cold, Sleeve Ground

Output Connectors

Neutrik Speakons

Input Impedance

40 Kohms Balanced

Input Sensitivity

0.775 Vrms (0 dB)

Input CMRR @ 1KHz

>70dB

Channel Separation:@ 1KHz

-88dB

Frequency response:
@ rated output:

20 to 20 KHz; Crossover frequency to Sub 100 Hz. Customised plug in card can be supplied

Metering:

LED status indicators for Signal Present and Protection

Protection Features

 

• Relay switched DC sensing
• 'SilentStart/SilentStop' Input/Output muting at turn on/off
• 'SoftStart' slow power ramp up

Cooling

Ultra Fin heatsink and variable speed DC cooling fans:
2 fans, air in front, rear exit

AC Power

Supplied 'zone-specific' 100/120/220/240V AC. Removable power lead with 3 pin IEC connector

Weight

12 Kg (26 lbs)

Size:

Depth:

Standard 2 rack units high and 19" (482mm) wide

16" (405mm) Add at least >3" (80mm) to depth behind front panel to allow for rear rack mount ears, cabling and connectors. Add >1" (32mm) to depth before front panel to allow for handles and controls.

Go to Amp Racking Requirements page for exact space specs

Slew Rate

35VuS

Damping Factor

200:1

Distortion

Channels A and B
@ 1 KHz 8 ohms: 0.027%
@ 1 KHz 4 ohms: 0.04%
Sub Channel
@ 1 KHz 8 ohms: 0.04%
@ 1 KHz 4 ohms: 0.06%

Construction

All steel chassis and front panel, with Lexan front print. Front panel power switch and level controls. Rear rack mount ears for four point racking in high stress mobile installations


Open AmbiDrive brochure in Adobe Acrobat PDF format
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