Nady Systems PMX-420 User Manual

PMX-420

O W N E R ’ S M A N U A L

6 Channel Powered Console Mixer

Congratulations on your choice of the NADY AUDIO PMX-420
powered console mixer — you have purchased one of the finest
powered mixing units on the market today. This unit was
developed using the expertise of professional sound engineers
and working musicians. You will find that your new PMX-420
powered mixer has superior performance and greater flexibility
than any other powered mixer in its price range. Please read this
manual carefully to get the most out of your new unit. Thanks for
selecting NADY AUDIO as your choice in powered mixers

2

PMX-420

6 Channel Powered Console Mixer

Date of Purchase

Dealer’s Name

City

State

Zip

Model #

Serial #

C O N T E N T S

FEATURES ................................................................................2

WARNING ..................................................................................3

INSTALLATION ..........................................................................4

1. Inspection ..............................................................................4

2. Setup and Operation ............................................................4

CONTROLS AND CONNECTIONS............................................5

1. Channel Section ....................................................................5

2. Master and Effects Section ....................................................6

3. Master Input / Output Section ................................................7

4. Rear Panel ..............................................................................8

CONNECTIONS ........................................................................9

BLOCK DIAGRAM ....................................................................10

SPECIFICATIONS ....................................................................11

• This amazingly compact 6-channel powered mixer can pump
out 420W RMS, complete with Echo Effects and Submixes,
while capable of handling 11 total inputs simultaneously!

• 2 Mono channels each with balanced XLR Mic and 1/4" TRS
line inputs and 2 Stereo channels with input A or B selector
switch for each channel, Effects Return and Submix 1 & 2
Return with dedicated Volume/Pan for a total of 11
simultaneous inputs

• Power Output – 2 x 210W RMS @ 4 ohms (1% THD) with both
channels driven. Advanced amplifier design features include
fan cooling, short circuit protection, speaker DC protection
circuits, clip indicators for utmost safety and reliability and
power ON/OFF anti-thump circuit for quietest operation

• Stereo L-R Master Mix and S1-2 Group Submix buses, with 4
master faders and submix to main enable switch and Pan
controls

• Built-in Echo Effects 32-bit DSP emulates plate, gate, room,
hall, and stadium reverb

• Full complement of input controls, connections and indicators:
Channel Trim controls, Peak LED’s, High, Mid, and Low EQ’s;
Channel Submix assign and PFL buttons, EFF Send controls,
Pan and Volume controls

• Effects Send and Return with level control; 2 X 5-segment LED
display bargraph meters with L-R/S1-2/EFF and PFL selector
and Power Amp peak indicator

• Output insert jacks on all L-R and Submix outputs for adding
effects or compression before the amplifier

• Stereo headphone output with L-R/G1-2/PFL selector and
separate volume adjust

• Outputs include Line Level Left and Right, Submix 1-2, Low
Frequency output, and 1/4" Speaker outputs for Left and Right

• Internal shielded AC supply with 115V(60Hz)/230V(50Hz)
select switch

• Dimension & Weight: 4.5” x 11.4” x 12.3" (114 x 290 x
312mm); 18.8 lbs. (8.5 Kg)

F E A T U R E S

WA R N I N G

3

IMPORTANT SAFETY INSTRUCTIONS

When using this electronic device, basic precautions should always be taken, including the following:

1. Read all instructions before using the product.

2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet basement, or near a
swimming pool, etc.).

3. This product should be used only with a cart or stand that will keep it level and stable and prevent wobbling.

4. This product, in combination with headphones or speakers, may be capable of producing sound levels that
could cause permanent hearing loss. Do not operate for a long period of time at a high volume level or at a
level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult an
audiologist.

5. The product should be positioned so that proper ventilation is maintained.

6. The product should be located away from heat sources such as radiators, heat vents, or other devices
(including amplifiers) that produce heat.

7. The product should be connected to a power supply only of the type described in the operating instructions or
as marked on the product. Replace the fuse only with one of the specified type, size, and correct rating.

8. The power supply cord should: (1) be undamaged, (2) never share an outlet or extension cord with other
devices so that the outlet’s or extension cord’s power rating is exceeded, and (3) never be left plugged into
the outlet when not being used for a long period of time.

9. Care should be taken so that objects do not fall into, and liquids are not spilled through, the enclosure’s
openings.

10. The product should be serviced by qualified service personnel if:
A. The power supply cord or the plug has been damaged.
B. Objects have fallen into, or liquid has been spilled onto the product.
C. The product has been exposed to rain.
D. The product does not appear to operate normally or exhibits a marked change in performance.
E. The product has been dropped, or the enclosure damaged.

11. Do not attempt to service the product beyond what is described in the user maintenance instructions. All
other servicing should be referred to qualified service personnel.

I N S TA L L A T I O N

4

To ensure years of enjoyment from your NADY AUDIO PMX-420, please read and understand this manual thoroughly before
using the unit.

INSPECTION

Your NADY AUDIO PMX-420 powered mixer was carefully packed at the factory in packaging designed to protect the
units in shipment. Before installing and using your unit, carefully examine the packaging and all contents for any signs of
physical damage that may have occurred in transit.

[Please note: Nady Systems is not responsible for shipping damage. If your unit is damaged, do not return to Nady, but
notify your dealer and the shipping company (if shipped to you) immediately to make a claim. Such claims must be made
by the consignee in a timely manner.]

SETUP AND OPERATION

Parts of the unit can become very warm during use. This is normal during operation. Care should be taken to ensure that
there is enough space around the unit for cooling. Also, do not place the PMX-420 powered mixer on high temperature
devices such as power amplifiers, etc., or the unit may overheat in operation.
Although the unit’s chassis is shielded against radio frequency (RF) and electromagnetic interference (EMI), extremely
high fields of RF and EMI should be avoided.

Please make sure that the power unit supplied is marked for the correct voltage in your area (120VAC/60 Hz or
230VAC/50 Hz). Power requirements for electrical equipment differ from area to area. In new installations and portable
sound systems, or any situation in which the AC power is in question, it is wise to confirm the voltage and use the
appropriate power supply unit before connecting it to power sources.

Europe (except UK): 230V, 50Hz

UK and Australia: 240V, 50Hz

USA and Canada: 120V, 60 Hz

For other areas, please check with local authorities.

When ready to operate, plug the AC cord into the power source. Make sure that the unit is turned off before connecting to
the AC power source to avoid possible loud transients which can damage your speakers or your ears. Set the Channel
(11), Submix (16), and Master Stereo Volume Faders (19) to minimum to further reduce the chance of undesired noise
when first powering up. Turn on your PMX-420 powered mixer by pressing on the rear panel Power On/Off Switch (35).