Related Manuals for M2TECH MARLEY
Summary of Contents for M2TECH MARLEY
- Page 1 M2TECH MARLEY DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER USER MANUAL REV. p .a – 10/2013...
- Page 2 M2Tech marley DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER REVISION P .A – OCTOBER 2013 www.m2tech.biz Copyright © 2013, M2Tech Srl...
- Page 3 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 to this advice may lead to damage to the Marley. Copyright © 2013, M2Tech Srl...
- Page 4 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.
- Page 5 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.
- Page 6 M2Tech marley DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER REVISION P .A – OCTOBER 2013 www.m2tech.biz Copyright © 2013, M2Tech Srl...
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Page 7: Table Of Contents
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. - Page 8 M2Tech marley DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER REVISION P .A – OCTOBER 2013 www.m2tech.biz Copyright © 2013, M2Tech Srl...
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Page 9: Unpacking And Placing The Unit
Should one or more item be missing, please contact your dealer. Extract 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. - Page 10 M2Tech marley DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER REVISION P .A – OCTOBER 2013 www.m2tech.biz Copyright © 2013, M2Tech Srl...
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Page 11: Front Panel
1) On/off/mute/menu escape button. Push this button to turn the MARLEY on when it’s off. When the MARLEY is on, a short push will toggle muting, unless the menu has been previously accessed: in the latter, a short push will cause immediate menu escape and configuration changes discard. - Page 12 3) Encoder. Allows for accessing and navigating the menu, as well as volume setting. It may be rotated and pushed. Please read chapter 6 for details on its use. Copyright © 2013, M2Tech Srl...
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Page 13: Back Panel
Gold-flashed RCA sockets. Black indicates left channel, red indicates right channel. 6) Preamplifier output. If needed, connect a power amplifier to this output, to use the MARLEY as a preamplifier. Gold-flashed RCA sockets. Black indicates left channel, red indicates right channel. Copyright © 2013, M2Tech Srl... - Page 14 (item 7). 4-pin female XLR socket. 9) Input for high-current, low-noise power supply. Connect the plug from the dedicated high-current, low-noise power supply dedicated for the MARLEY. 4-pin, male XLR socket. 10) Input for power from wall wart. Connect the jack from the 15V-2A wall wart included in the package.
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Page 15: Connecting And Powering The Unit
4. Connecting and Powering the Unit WARNING: all connections between the MARLEY MARLEY and other equipment must be MARLEY MARLEY made when all units are off. Failing to do so may cause damage to the MARLEY MARLEY MARLEY MARLEY and/or other units. - Page 16 DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER REVISION P .A – OCTOBER 2013 www.m2tech.biz the power supply must be connected to the dedicated connector on MARLEY MARLEY MARLEY‘s MARLEY back panel (Figure 2, 9). WARNING: when the dedicated power supply is used, DO NOT connect the wall wart also.
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Page 17: Cleaning The Unit
5. Cleaning the Unit The MARLEY should be cleaned with a soft, damp cloth. Do not use alcohol nor other cleaning fluids as they could damage the unit. Avoid fluids from dropping or leaking through the venting grid holes. -
Page 18: Using The Marley
REVISION P .A – OCTOBER 2013 www.m2tech.biz 6. Using the Marley At power up, the MARLEY observes a start-up heating wait lasting a few seconds, during which the flashing writing in Figure 3 is displayed. HEATING UP POWER AMPLIFIERS Figure 3 Once heating is completed, some general information about MARLEY operation appear on the display, as shown in Figure 4 and Figure 5. -
Page 19: Volume Setting
When the MARLEY is configured in balanced, The two stereo amplifiers which fit it are bridged and make for a single balanced amplifier. This is why only one balanced output is present and only one volume can be set (Figure 4). -
Page 20: Muting Toggle
6.3. Source Selection The MARLEY is provided with two inputs, it is thus possible to connect two sources to it and select one for listening. To do this, it is necessary to push the encoder once in balanced mode or twice in dual single-ended mode: the input selection feature is then accessed as shown in Figure 7. -
Page 21: Balance Setting
6.4. Balance Setting The MARLEY allows for setting the balance (that is, the relative level between left and right channels) in a range of +/-6dB. To do this, it is necessary to push the encoder twice in balanced mode or three times in dual single-ended mode: the input selection feature is then accessed as shown in Figure 8. -
Page 22: Output Mode Selection
(Figure 1, 1) or avoid doing any other action on the unit: after a few seconds, the MARLEY automatically reverts to its “idle” status without changing the balance setting. -
Page 23: Volume Display Mode Selection
(Figure 1, 1) or avoid doing any other action on the unit: after a few seconds, the MARLEY automatically reverts to its “idle” status without changing the output mode. 6.6. Volume Display Mode Selection The MARLEY’s volumes may be displayed in two different fashions: deciBels or steps. -
Page 24: Auto Switch-Off Setting
6.7. Auto Switch-Off Setting Compliant to UE rules about energy saving, the MARLEY is able to automatically switch off after a certain time of idle operation. Idle means a time lapse in which user doesn’t operate on the units’ controls. - Page 25 240MIN Figure 11 The idle time after which the MARLEY switches off is set by rotating the encoder knob. To confirm the desired auto switch-off time, push the encoder: time is stored and the unit will revert to “idle” status.
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Page 26: Display Dimming
6.8. Display Dimming The MARLEY display backlight intensity may be set in four different levels, depending on user’s preference. Moreover, it’s possible to set an “automatic” mode in which the display is always of except, for a few seconds, when the unit is operated by the user. -
Page 27: Firmware Revision
MARLEY automatically reverts to its “idle” status. 6.10. Switch-Off The MARLEY may be turned off by a long push on the button on the left of the front panel (Figure 1, 1). After a few seconds, the advice shown in Figure 15 appears. -
Page 28: Notes About Menu Use
If volume setting is desired, it’s then necessary to exit menu by either pushing the button on the left of the front panel (Figure 1, 1) or avoiding operating the unit for a while, to allow the MARLEY to automatically revert to “idle” status. -
Page 29: Balanced Drive And Single-Ended Drive
(that is, an amplifier provided with two output stages operating in push-pull). In this setup, called “balanced” the two speakers cannot Copyright © 2013, M2Tech Srl... - Page 30 Despite the common belief, no specific driver technology takes specific advantage from balanced drive: any pair of speakers, be they dynamic, electrostatic, electret or isodynamic, will give better performance when balance-driven. Copyright © 2013, M2Tech Srl...
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Page 31: Technical Specifications
Balance range........+/-6dB with 1dB steps Auto switch-off ........30 to 240 minutes with 30 minutes steps, or disabled Power supply: ........15V Power consumption: ......30VA Size:..........200x50x200mm (w x h x d) Weight..........2kg (unit only) 3kg (packing) Copyright © 2013, M2Tech Srl... - Page 32 M2Tech marley DUAL-DRIVE CLASS-A HEADPHONES AMPLIFIER REVISION P .A – OCTOBER 2013 www.m2tech.biz Copyright © 2013, M2Tech Srl...
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