M2TECH Marley User Manual
M2TECH
MARLEY
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / Preamp
USER MANUAL
REV. 1.0 – 11/2013
marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
Copyright © 2013, M2Tech Srl
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marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
Warning!
Changes or modifications not authorized by the manufacturer can invalidate
the compliance to CE regulations and cause the unit to be no more suitable to
use. The manufacturer refuses every responsibility regarding damages to
people or things due to the use of a unit which has been subject to
unauthorized modifications or to misuse or to malfunction of a unit which has
been subject to unauthorized modifications.
This unit is compliant with the following CE regulations: CEI EN 55022:2009 Class B (Radiated
Emissions), CEI EN 55024:1999, CEI EN 55024:A2/2003, CEI EN 55024:IS1/2008 (Radio Frequency
Electromagnetic Fields, 50Hz Magnetic Field Immunity Test and Electrostatic Discharges – ESD).
For a proper operation of this unit, all connections to other equipment in the system must be
done when all equipment are off. Failing to comply with this advice may lead to damage to the
Marley.
Copyright © 2013, M2Tech Srl
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marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
The label above, printed on the product case, indicates that the product, when no more usable, can’t
be treated as generic garbage, but must be disposed of at a collection point for recycling of electrical
and electronic equipment, in compliance with the WEEE regulation (Waste of Electrical and Electronic
Equipment).
By making sure that this unit is correctly recycled, you will help preventing potential damages to
environment and human health, which could be caused by a wrong treatment of this product as
generic garbage. Materials’ recycling helps saving natural resources. For more in-depth information
about recycling this product, please contact M2Tech Srl.
WARNING: the information contained in this manual are considered to be reliable and accurate.
M2Tech reserves the right to change or modify the information any time, without prior advice.
It’s up to the customer to ensure that the manual being consulted is the latest version.
Copyright © 2013, M2Tech Srl
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marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
Dear customer,
Thank you for purchasing MARLEY. What you have is a first rate dual headphone
amplifier with preamp and line outputs. MARLEY also includes many unique features
conceived to obtain the best audio performance out of any headphone or source.
MARLEY implements a specific set of functional and technological solutions, from the
double output stage to high bias, with the purpose of exalting superior sonic
performance, ease of use and reliability.
MARLEY is provided with a complete set of outputs which allow for using any kind of
headphones, be they fit for single-ended drive or for balanced drive. The high
maximum output level delivered by the MARLEY allows for effectively driving even the
most difficult headphones. For your convenience, we allow for two sets of
headphones to be operated independently of each other at the same time using
single-ended drive.
We’re sure that your expectations will be met by purchasing the MARLEY: you’ll hear
your favorite music like never before. Be ready for a new listening experience!
Nadia Marino, CEO
Please annotate your MARLEY serial number and purchase date for future reference:
S/N: ____________________________________
Date of Purchase: __________________________
M2Tech
www.m2tech.biz
Copyright © 2013, M2Tech Srl
5
marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
Copyright © 2013, M2Tech Srl
6
marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
INDEX
1. Unpacking and Placing the Unit.............................................................................. 9
2. Front Panel ........................................................................................................... 11
3. Back Panel............................................................................................................ 13
4. Connecting and Powering the Unit ....................................................................... 15
5. Cleaning the Unit .................................................................................................. 17
6. Using the Marley................................................................................................... 18
6.1. Volume Setting ............................................................................................... 19
6.2. Muting Toggle................................................................................................. 20
6.3. Source Selection ............................................................................................ 20
6.4. Balance Setting .............................................................................................. 21
6.5. Output Mode Selection................................................................................... 22
6.6. Volume Display Mode Selection..................................................................... 23
6.7. Auto Switch-Off Setting .................................................................................. 24
6.8. Display Dimming ............................................................................................ 26
6.9. Firmware Revision.......................................................................................... 27
6.10. Switch-Off..................................................................................................... 28
6.11. Notes About Menu Use ................................................................................ 28
7. Balanced Drive and Single-ended Drive ............................................................... 29
8. Technical Specifications ....................................................................................... 31
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marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
Copyright © 2013, M2Tech Srl
8
marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
1. Unpacking and Placing the Unit
Lay the box on a table and open it by separating it from the external paperwork and
removing or cutting the adhesive tape seal. The following items are included:
• One MARLEY;
• One wall wart;
• This manual.
Should one or more item be missing, please contact your dealer.
Remove the MARLEY from the foam enclosure and place it onto a stable base, far from
heat sources. Avoid full sunlight on the unit. Allow for ample room around the unit for
venting.
The MARLEY is a high bias dual drive class A amplifier which dissipates 30W while
operating, even when idle; therefore a lot of heat is produced. As a result, it is
necessary to guarantee adequate air flow.
Avoid smoke, moisture, dirt and water reaching the unit.
Do not place the unit on thick carpets or inside a box or piece of furniture, not even
close to curtains.
Copyright © 2013, M2Tech Srl
9
marley
DUAL-DRIVE CLASS-A HEADPHONE AMPLIFIER / PREAMP
REVISION 1.0 – NOVEMBER 2013
M2Tech
www.m2tech.biz
10
Copyright © 2013, M2Tech Srl
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