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HMX-56

HMX

-56

Introduction

Thank you for choosing a Mackie HMX-56 Matrix 

Headphone Mixer/Amplifier. This six-channel 
headphone mixer features left and right TRS main 
inputs, four TRS “source” inputs, as well as an effects 
send and stereo effects return.

The HMX-56 provides six separate headphone mixes, 

each of which can be comprised of the main stereo mix 
and a combination of the four source inputs, which 
could be aux sends or sub groups from your mixer, or 
even individual channel direct outputs.

The effects send can be comprised of a combination 

of the main stereo mix, the four source inputs, and the 
stereo effects return, individually mixed to taste in each 
of the headphone mixes. In addition, each channel has 
its own headphone output level control.

The HMX-56 also makes a great stage monitor 

mixer, allowing each musician to tweak his or her 
individual monitor mix exactly how they want it. Just 
use the phones outputs as inputs to your stage monitor 
amplifiers or in-ear monitor system.

The rugged construction of the HMX-56 makes it a 

roadworthy companion to your arsenal of gear either 
inside or outside of a rack.

HOW TO USE THIS MANUAL

We know that many of you can’t wait to get your 

new headphone amp hooked up, and you’re probably 
not going to read the manual first (sigh!). So the first 
section after this introduction is a Quick-Start Guide 
called “Getting Started” to help you get the HMX-56 set 
up fast so you can start using it right away. Right after 
that are the ever popular hook-up diagrams that show 
typical setups for live sound and recording.

Then, when you have time, read the Features 

Description section. This describes every knob, switch, 
and connection point on the HMX-56.

Throughout this section you’ll find illustrations with 

each feature numbered. If you want to know more 
about a feature, simply locate it on the appropriate 
illustration, notice the number attached to it, and find 
that number in the nearby paragraphs.

This icon marks information that is 
critically important or unique to the 
HMX-56. For your own good, read 
them and remember them. They will 
be on the final test.

This icon leads you to in-depth 
explanations of features and practical 
tips. While not mandatory, they 
usually have some valuable nugget of 
information.

A PLUG FOR THE CONNECTOR SECTION

Appendix B is a section on connectors: balanced 

connectors, unbalanced connectors, and the phones 
connectors used on the HMX-56.

More resources on our website at www.mackie.com.
THE GLOSSARY: A Haven of Non-Techiness for 

the Neophyte

The “Glossary of Terms” is a fairly comprehensive 

dictionary of pro-audio terms. If terms like “clipping,” 
“noise floor,” or “unbalanced” leave you blank, refer to 
this glossary for a quick explanation.

ARCANE MYSTERIES ILLUMINATED

“Arcane Mysteries” discusses some of the down ‘n’ dirty 

practical realities of microphones, fixed installations, 
grounding, and balanced versus unbalanced lines. It’s a 
goldmine for the neophyte, and even the seasoned pro 
might learn a thing or two.

Please write your serial number here for future 

reference (i.e., insurance claims, tech support, 

return authorization, etc.) 

 

 

 

Purchased at: 

 

 

 

Date of purchase:

Summary of Contents for HMX-56

Page 1: ......

Page 2: ...induced hearing loss but nearly everyone will lose some hearing if exposed to suf ciently intense noise for a period of time The U S Government s Occupational Safety and Health Administration OSHA has...

Page 3: ...Features 8 FrontPanel 8 1 SOURCEA DLevelControls 8 2 EFFECTSRETURNLevelControl 8 3 PHONESLEVELControl 8 4 EFFECTSSENDA D 8 5 L RMIXEFFECTSSEND 8 6 POWERLED 8 7 INSTRUMENTLABELS 8 RearPanel 9 8 IECPowe...

Page 4: ...ter that are the ever popular hook up diagrams that show typical setups for live sound and recording Then when you have time read the Features Description section This describes every knob switch and...

Page 5: ...he volume gets really loud really fast turn down the Main Mix level control on your mixer until you can turn up the headphone amp LEVEL control at least halfway Conversely if you have to turn the head...

Page 6: ...Phones outputs are routed to In Ear Monitor IEM systems and three are routed to ampli ers powering monitor wedges Note The output level of the Phones outputs are higher than a standard line level outp...

Page 7: ...recording application Four aux sends from the 1640 provide four separate mono headphone mixes to the HMX 56 The Phones output from the 1640 is connected to the Main Inputs on the HMX 56 allowing the t...

Page 8: ...output 6 POWERLED This lights up when the HMX 56 power switch 9 is turned on 7 INSTRUMENTLABELS Your HMX 56 came with a set of nine magnetic labels that you can place adjacent to the SOURCE level con...

Page 9: ...s otherwise you will only hear the effects in one side of the headphones See Mults and Y s in Appendix B for more info 13 SOURCEINPUTA D These 1 4 TRS jacks accept a balanced or unbalanced line level...

Page 10: ...he way back into the IEC socket 5 Reconnect the linecord and turn the POWER switch on If two fuses blow in a row it will be necessary to have your HMX 56 serviced There are no user serviceable parts i...

Page 11: ...y packaging 5 Include a legible note stating your name shipping address no P O boxes daytime phone number Service Request Number and a detailed description of the problem including how we can duplicat...

Page 12: ...ground earth connection from the balanced input ground earth connection leaving the unbalanced ground connected to the balanced input low cold connection only In some cases you may have to make up sp...

Page 13: ...Output 100 mW output THD N 0 07 20 Hz to 20 kHz BW Noise Residual Output Noise 22 Hz to 22 kHz BW 103 dBu all outputs off 60 load 97 dBu all outputs 12 o clock 60 load Input Sensitivity Main Input and...

Page 14: ...FX Rtn R FX Send Main Input Right Left Effects Return Right Source A Source B Source C Source D Phones 1 L Phones 1 R Source B Level Source C Level Source D Level Effects Return Level Effects Send A...

Page 15: ...of the LOUD Technologies factory authorized service centers and deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced within thirty days of receipt LO...

Page 16: ...Road NE Woodinville WA 98072 USA United States and Canada 800 898 3211 Europe Asia Central and South America 425 487 4333 Middle East and Africa 31 20 654 4000 Fax 425 487 4337 www mackie com E mail s...

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