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IMPORTANT SAFETY INSTRUCTIONS

WARNING

ATTENTION

RISQUE dE CHOC ELECTRIQUE NE PAS OUVRIR 

An equilateral tr

iangle enclosing a lightning flash/arrowhead symbol is 

intended to alert the user to the presence of uninsulated “dangerous 

v

oltage”

 within the product’

s enclosure which may be of sufficient 

magnitude to constitute a risk of electr

ic shoc

k.

An equilateral triangle enclosing an e

xclamation point is intended to aler

the user to the presence of impor

tant operating and service instructions in 

the literature enclosed with this unit.

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.

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Summary of Contents for SPM-4250

Page 1: ...SPM 4250 P O W E R E D M I X E R 4 Channel Stereo Powered Mixer O W N E R S M A N U A L...

Page 2: ..._ _____________________ Zip______________________ Model _____________________________________________ Serial _ ____________________________________________ FEATURES TABLE OF CONTENTS FEATURES 2 WARNIN...

Page 3: ...he 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 vent...

Page 4: ...r cooling Also do not place the SPM 4250 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...

Page 5: ...The GAIN control adjusts the input sensitivity of the mic and line inputs on each channel This control can be adjusted to accommodate input signals from a wide variety of sources from the high outputs...

Page 6: ...pre fader listen control adjusts the volume of the mono signal sent to the HEADPHONES 22 provided the master section PFL SWITCH 23 is enabled The signal is post EQ 5 and independent of the channel VOL...

Page 7: ...s in the master mix The red PEAK LED will light when the output signal is just below clipping It is acceptable if the red LED lights occasionally If the red LED lights more than occasionally you shoul...

Page 8: ...NECTOR The IEC socket is used to connect the power cord to an AC power source Caution Do not remove the center grounding pin 28 FUSE COMPARTMENT Replace with only the same type fuse as listed in the S...

Page 9: ...TRS phone jacks for balanced unbalanced stereo or in out inserts 3 1 4 TS unbalanced 4 RCA pin unbalanced Figures 1 Balanced XLR input connections 2 Stereo headphone connection with 1 4 TRS plug 3 1 4...

Page 10: ...OWER OUT 8 BOTH CHANNELS DRIVEN 105W RMS per side 4 BOTH CHANNELS DRIVEN 125W RMS per side FREQUENCY RESPONSE 10Hz 20KHz 3dB 5 GENERAL POWER REQUIREMENTS Voltage selectable 115VAC 60Hz or 230VAC 50Hz...

Page 11: ...artment Any service not performed by Nady will automatically void this warranty 2 Items not covered physical damage resulting from improper handling of the unit in transit from the factory by the ship...

Page 12: ...or money order or pay by credit card per instructions by the Nady Service Department Ship your unit prepaid to Nady Systems Service Department 6701 Shellmound Street Emeryville CA 94608 Include a brie...

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