Martin Audio Installed System Digital Management Processor Engineer... User manual

Martin Audio Engineer 418 & 818
USER MANUAL

ENGINEERHARDWAREMANUAL1.1[1].doc i
Index
1. Chapter 1: Description..................................................................... 6
1.1 Application ................................................................................ 6
1.2 Features..................................................................................... 6
1.3 Products .................................................................................... 8
1.4 Engineer Remote...................................................................... 9
1.5 Engineer Remote Spider (optional)........................................ 9
1.6 Included Items.........................................................................10
1.7 Front Panel layout .................................................................. 10
1.8 Rear Panel layout....................................................................11
1.9 Installation requirements.......................................................12
1.10Connecting Audio...................................................................12
1.11Connection instructions for Phoenix terminal blocks.......13
1.12Connecting RS-232.................................................................14
1.13Connecting RS-485.................................................................14
1.14Power Requirements..............................................................15
1.15Power switch...........................................................................15
1.16Power LED...............................................................................15
1.17RS-232 front panel cover......................................................16
2. Chapter 2: Engineer 818 ................................................................17
2.1 Included Items.........................................................................17
2.2 Front Panel layout .................................................................. 17
2.3 Rear Panel layout....................................................................18
2.4 Installation requirements.......................................................19
2.5 Connecting Audio...................................................................19
2.6 Connection instructions for Phoenix terminal blocks.......20
2.7 Connecting RS-232.................................................................21
2.8 Connecting RS-485.................................................................21
2.9 Power Requirements..............................................................22
2.10Power switch...........................................................................22
2.11Power LED...............................................................................22
2.12RS-232 front panel cover......................................................23
2.13Panel layout.............................................................................24
2.14Installation............................................................................... 25
2.15Power ....................................................................................... 26
2.16Wiring.......................................................................................26
2.17Wiring scheme........................................................................27
2.18Header......................................................................................28

ENGINEERHARDWAREMANUAL1.1[1].doc ii
2.19Connecting multiple Engineer Remotes to an Engineer...28
2.20Checking proper connection ................................................28
2.21Recalling presets....................................................................29
2.22Changing volumes ................................................................. 29
3. Chapter 5: Troubleshooting..........................................................30
3.1 Power ....................................................................................... 30
3.2 Data ..........................................................................................30
3.3 Remote.....................................................................................30
3.4 Audio........................................................................................31
4. Appendix 1: Maintenance.............................................................. 32
4.1 Housing.................................................................................... 32
4.2 Servicing..................................................................................32
5. Appendix 2: Engineer 418/818 Specifications ............................33

ENGINEERHARDWAREMANUAL1.1[1].doc 2
Declaration of Conformity
Manufacturer's name:
XLNT Advanced Technologies
Adress:
Zonnebaan 42
3542 EG Utrecht
The Netherlands
Declares that the product:
Name: Engineer 418
Conforms to the following EEC Directives
Low Voltage Directive 2006/95/EC
EN 60065 : 2002
IEC 60065 :2001 Modified
EMC Directive 2004/108/EC
EN 55103-1 (1996)
EN 55103-2 (1996)
EN 61000-3-2 (2000) +A2 (2005)
EN 61000-3-3 (1995) + A1 (2001) + A2 (2005)
Utrecht 25 January, 2008
XLNT Advanced Technologies

ENGINEERHARDWAREMANUAL1.1[1].doc 3
Declaration of Conformity
Manufacturer's name:
XLNT Advanced Technologies
Adress:
Zonnebaan 42
3542 EG Utrecht
The Netherlands
Declares that the product:
Name: Engineer 818
Conforms to the following EEC Directives
Low Voltage Directive 2006/95/EC
EN 60065 : 2002
IEC 60065 :2001 Modified
EMC Directive 2004/108/EC
EN 55103-1 (1996)
EN 55103-2 (1996)
EN 61000-3-2 (2000) +A2 (2005)
EN 61000-3-3 (1995) + A1 (2001) + A2 (2005)
Utrecht 25 January, 2008
XLNT Advanced Technologies

ENGINEERHARDWAREMANUAL1.1[1].doc 4
Important Safety Instructions
It is extremely important to read ALL safety information and instructions provided in this manual and any
accompanying documentation before installing and operating the products described herein.
Heed all cautions and warnings during installation and use of this product.
Keep this instruction manual for future reference.
This unit does not contain any user serviceable parts.
Do not open this unit. Doing so will void warranty and might present a risk. Servicing must be performed
by qualified personnel only. Servicing is required when the apparatus has been damaged in any way,
such as power-supply cord or plug being damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been
dropped.
This unit is designed for indoor use. Do not use this unit in a wet or damp environment or near to water.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
This unit is not designed for residential use.
Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Do not defeat the safety purpose of the polarized or grounding-type plug. If the provided plug does not fit
into your outlet, consult an electrician for replacement of the obsolete connector.
Always replace a blown fuse by a compatible fuse.
Do not connect or disconnect the power connector under load.
Protect the power lead from being walked on or pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus. When damaged, replace the power lead.
Unplug this apparatus during lightning storms or when unused for long periods of time.

ENGINEERHARDWAREMANUAL1.1[1].doc 5
Disclaimer
All rights reserved. Although the information in this manual has been compiled with care, individual items
may vary in size, ratings and functionality from what is included in this manual.
Martin Audio Ltd. disclaims any liability for damage, losses or other consequences suffered or incurred in
connection with the use of the measurements, data or information contained in this manual. Martin Audio
Ltd. may change this product without prior notice.
Copyright: TeamProjects BV 2007.
Microsoft, Windows Vistaand Windowsare either registered trademarks or trademarks of Microsoft
Corp.
About this Manual
This Installation Manual provides basic information explaining the functionality, installation, operation and
maintenance of the Martin Audio Engineer 418 and Martin Audio Engineer 818.
Please refer to the software manual of this product for further instructions on how to program this device
for operation.
This manual serves as a first reference for the use of this product.
Customer Service and Warranty
This product is supplied with a limited warranty for 24 months following purchase.
To obtain warranty service, please contact your local Martin Audio Ltd. Dealer.
Please do not send equipment to Martin Audio Ltd. without authorization. If asked to do so, please add a
copy of the original invoice, together with the faulty device in a secure shipping container.
Recycling and hazardous substances
This product complies with the EU RoHS Reduction of Hazardous Substances directive (2002/96/EC) and
WEEE Waste Electrical and Electronic Equipment directive (2002/95/EC).
The selection of hazardous substances in all components and parts has been reviewed with care in order
to comply with or exceed the RoHS directive.
If this product, when purchased and used in the EU, has reached the end of its useful life it may be
returned to the original dealer at no cost or to Martin Audio Ltd. with a proof of ownership.

ENGINEERHARDWAREMANUAL1.1[1].doc 6
1. Chapter 1: Description
1.1 Application
Thank you for choosing the Martin Audio Engineer for your application. The Martin Audio Engineer is a
powerful, advanced audio DSP product, built into a 19” rack mount enclosure, designed for permanently
installed entertainment audio systems.
On top of the ‘normal’ crossover and routing functionality The Martin Audio Engineer features two unique highly
advanced specialist audio algorithms.
The first one being the dream of every audio reinforcement system installer and owner: an automated sound
engineer-in-a-box called ‘The Engineer’, operating 24-7 to maintain a quality, consistent sound in the venue.
The second one being the Basscreator algorithm, a psycho acoustical effects module which gives the
appearance that small speakers are sounding like they are a lot bigger, with unexpected amounts of perceived
low-frequency output.
The device also features an advanced scheduler, to have presets recalled at pre-programmed time events.
Furthermore, the device features an external remote control panel which can be connected through a RS-485
port.
This RS-485 port can also be used for controlling the device with third party serial control systems.
The combination of these features make the Martin Audio Engineer an outstanding one-box problem solver for
any installation where high quality and ease of operation are important factors.
1.2 Features
- 4 inputs and 8 outputs with complete freely routable signal path (Engineer 418)
- 8 inputs and 8 outputs with complete freely routable signal path (Engineer 818)
- 8-band fully parametric EQ on every input.
- 8-band fully parametric EQ on every output.
- Highpass and Lowpass filters on every output with slopes up to 24 dB/oct. featuring L-R, Butterworth
and Bessel filters.
- Speaker alignment delays of up to 10ms on every output.

ENGINEERHARDWAREMANUAL1.1[1].doc 7
- The most musical-sounding speaker protection limiters in the business on every output.
- Very high, musical sound quality throughout.
- Unique Engineer DSP algorithm, working 24-7 to keep a consistent sound in your venue.
- Unique Basscreator algorithm, gives small speakers the perceived low frequency response of a large
speaker.
- Flexible build-in scheduler for automated preset recalling.
- RS-232 interface for extensive PC-based setup and control.
- Windows® PC software for controlling and programming.
- Programmable remote control with RS-485 interface on industry-standard RJ-45 connector.
- Up to 4 remote controls can co-operate on one Engineer through the use of an optional Remote Spider.

ENGINEERHARDWAREMANUAL1.1[1].doc 8
1.3 Products
The Martin Audio Engineer product line comprises 2 products and 2 accessories.
Engineer 418
4 input-8 output advanced audio Digital Signal Processing device. 100-240V AC input. Housing is 19”
rack mounted. Audio in- and outputs on balanced Phoenix terminal blocks. RS485 interface for remote
control panel and third party control connection, RS-232 interface for extensive PC-based setup and
control.
Engineer 818
8 input-8 output advanced audio Digital Signal Processing device. 100-240V AC input. Housing is 19”
rack mounted. Audio in- and outputs on balanced Phoenix terminal blocks. RS485 interface for remote
control panel and third party control connection, RS-232 interface for extensive PC-based setup and
control.

ENGINEERHARDWAREMANUAL1.1[1].doc 9
1.4 Engineer Remote
Remote control panel for Martin Audio Engineer 418 and Martin Audio Engineer 818. Enables remote
recall of presets and remote control of zone volumes, The Martin Audio Engineer Remote is connected to
and powered from a dedicated RS-485 port on the Martin Audio Engineer 418 or Martin Audio Engineer
818. This accessory is included with every Martin Audio Engineer 418 and Martin Audio Engineer 818.
1.5 Engineer Remote Spider (optional)
The Martin Audio Engineer Remote Spider is an optional accessory, allowing you to connect up to 4 Martin
Audio Engineer Remotes to one Martin Audio Engineer 418 or Martin Audio Engineer 818.

ENGINEERHARDWAREMANUAL1.1[1].doc 10
2. Chapter 2: Engineer 418
2.1 Included Items
In the box containing this manual, the following items should be present:
1 Martin Audio Ltd. Engineer 418
1 Engineer remote panel
1 Engineer remote mounting plate
1 Engineer front panel cover set w/ 2 screws
3 12-pin Phoenix plug-in terminal blocks
1 Fully wired 1:1 DB09-DB09 M/F RS232 cable
1 Manual (this manual)
1 Power lead
1 software manual
1 CDROM with Windows® software
2.2 Front Panel layout
1 Power Switch
2 RS-232 port
3 Power Led

ENGINEERHARDWAREMANUAL1.1[1].doc 11
2.3 Rear Panel layout
1 Audio Inputs
2 Audio Outputs
3 RS-485 port (RJ45 connector)
4 Power connector
5 Fuse Holder
+ audio hot
- audio cold
audio ground

ENGINEERHARDWAREMANUAL1.1[1].doc 12
2.4 Installation requirements
The Martin Audio Engineer 418 is designed for 19” rack-mount use.
Mount the Martin Audio Engineer 418 with racking screws in a 19” cabinet. Use support strips as
necessary to support the rear of the device.
Adequate ventilation and rear-support must be provided. Allow for enough ventilation into the 19” cabinet
in which the Martin Audio Engineer 418 is mounted. Observe the environmental specifications (see
appendix 2) at all times.
When mounting the Martin Audio Engineer 418 in a touring rack, a touring rack with shock-absorbing
racking strips should always be used.
Always install the Martin Audio Engineer 418 in a level plane. A maximum allowable angle of 10 degrees
is acceptable.
Do not use the Martin Audio Engineer 418 in a wet/damp environment.
Do not block any ventilation slot at any time and check the proper function of the fans at regular
basis. If the fans do not operate properly, the lifespan of the device will be significantly reduced
and the device may even fail.
2.5 Connecting Audio
Use only certified balanced & shielded audio signal cabling (e.g. Belden 8718, Tasker C208). Refer to the
next paragraph for maximum allowable conductor cross sections.
The connectors on the Martin Audio Engineer 418 accept 12-pin Phoenix terminal blocks (as supplied).
Refer to the next paragraph for instructions how to terminate the audio wiring.
From left-to-right are INTPUT 1-4 and OUTPUT 1-8. The connections are labeled: (please refer to rear
panel layout)
+For audio hot
- For audio cold
For audio ground
Attention: Martin Audio strongly recommends the use of balanced audio connections only.

ENGINEERHARDWAREMANUAL1.1[1].doc 13
2.6 Connection instructions for Phoenix terminal blocks
To connect the Phoenix terminal blocks, always use the following procedure:
-strip the jacket 20mm
-strip the wires 7 mm
-DO NOT pre tin the wires
-cover the ground wire with a heat shrink sleeving
-put the wire up to the plastic sleeve in the terminal block
-use a small flathead screwdriver to firmly close the contact
-make a strain relief so no stain is on the connection
-for suitable wire thickness, please refer to the table below

ENGINEERHARDWAREMANUAL1.1[1].doc 14
2.7 Connecting RS-232
On the front of the device is the RS-232 port for remote control and configuration of the device with a PC with
the supplied Windows® Engineer software. To connect the Martin Audio Engineer to a PC use the supplied
RS232 cable only. This cable is 1:1 connected, fully wired, one side fitted with a Male DB9 connector, other side
a Female DB9 connector.
If a longer cable is required please observe that the maximum operational cable length is typically 45 feet.
Warning: if the users’ PC uses a grounded power supply, make sure that the the Martin Audio Engineer
418 and the PC are on the same power distribution line to avoid data errors.
2.8 Connecting RS-485
On the rear of the device, next to the audio inputs, is the RS-485 port on a RJ-45 connector, used to connect
the Martin Audio Engineer 418 to the Martin Audio Engineer Remote or to an external third party control unit.
(e.g. Crestron/AMX). For communication protocol please refer to the Engineer software manual.
The maximum operational cable length is typically 1000 ft. on CAT-5 (Unshielded Twisted Pairs) cable.
The RS-485 connection includes a +5V power line for powering the Engineer Remote. (Please refer to
the wiring scheme in the chapter “Engineer Remote”)
Warning: if an external third party control unit is used with the RS-485 port, this device must have a
double isolated power supply.
Conductor cross section solid min. 0.2 mm2
Conductor cross section solid max. 2.5 mm2
Conductor cross section stranded min. 0.2 mm2
Conductor cross section stranded max. 2.5 mm2
Conductor cross section stranded, with ferrule
without plastic sleeve min. 0.25 mm2
Conductor cross section stranded, with ferrule
without plastic sleeve max. 2.5 mm2
Conductor cross section stranded, with ferrule with
plastic sleeve min. 0.25 mm2
Conductor cross section stranded, with ferrule with
plastic sleeve max. 2.5 mm2

ENGINEERHARDWAREMANUAL1.1[1].doc 15
2.9 Power Requirements
The Martin Audio Engineer 818 must be connected to a 100-240V AC 50-60Hz electrical power supply,
with a single phase, neutral and ground connection. Both the neutral and the phase of the power supply
(building fuse) need to be protected by a fuse with a maximum current of 16A. For safety reasons the
Martin Audio Engineer 818 must be connected to a properly grounded power outlet.
Always use the 3-pin IEC power cord supplied with the Martin Audio Engineer 418.
The power input fuse is located below the 3-pin IEC power input. Do not use a different type of fuse;
always replace a blown fuse with a compatible fuse.
2.10 Power switch
The Martin Audio Engineer 418 has a power switch which is accessible through the hole in the front panel
(please refer to the front panel layout). Although the device is designed to be left on at all times, it is
possible to un-power the device with this switch. To switch ON/OFF, use a Philips #1 screwdriver to
operate the power switch through the hole.
Warning: Since the mains power plug can be used as the main disconnection device, care must be
must be taken during installation that this plug is made easily accessible at all times.
2.11 Power LED
The blue power LED shows the status of the isolated 5V power supply to the digital circuits. When lit, this
power supply is active.
Note that the other internal power supply circuits do not have an external or internal status indicator.

ENGINEERHARDWAREMANUAL1.1[1].doc 16
2.12 RS-232 front panel cover
When the RS-232 port on the front of the device is not used, the RS-232 port may be covered with the
supplied RS-232 front panel cover. Use the two supplied screws to attach the cover to the front panel.
These screws have holes drilled through the heads which may be used to seal the RS-232 port so
unwanted operation is prohibited.

ENGINEERHARDWAREMANUAL1.1[1].doc 17
3. Chapter 2: Engineer 818
3.1 Included Items
In the box containing this manual, the following items should be present:
1 Martin Audio Ltd. Engineer 818
1 Engineer remote panel
1 Engineer remote mounting plate
1 Engineer front panel cover set w/ 2 screws
3 12-pin Phoenix plug-in terminal blocks
1 Fully wired 1:1 DB09-DB09 M/F RS232 cable
1 Manual (this manual)
1 Power lead
1 software manual
1 CDROM with Windows® software
3.2 Front Panel layout
1 Power Switch
2 RS-232 port
3 Power Led

ENGINEERHARDWAREMANUAL1.1[1].doc 18
3.3 Rear Panel layout
1 Audio Inputs
2 Audio Outputs
3 RS-485 port (RJ45 connector)
4 Power connector
5 Fuse Holder
+ audio hot
- audio cold
audio ground