Nady Systems SPM-4250 manual

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Table of contents for the manual

  • Page 1

    POWERED MIXER OWNER’S MANUAL SPM-4250 4-Channel Stereo Power ed Mixer[...]

  • Page 2

    SPM-4250 4 Channel Stereo Powered Mixer Congratulations on your choice of the NADY AUDIO SPM-4250 Stereo Powered Mixer — you have purchased one of the finest stereo powered mixing units on the market today . This unit was developed using the expertise of professional sound engineers and working musicians. Y ou will find that your new SPM-4250 has[...]

  • Page 3

    IMPORT ANT SAFETY INSTRUCTIONS W ARNING A TTENTION : RISQUE DE CHOC ELECTRIQUE NE P AS OUVRIR An equilateral triangle enclosing a lightening flash/arrowhead symbol is intended to alert the user to the presence of uninsulated “ dangerous voltage ” within the product ’ s enclosure which may be of suf ficient magnitude to constitute a risk of el[...]

  • Page 4

    INST ALLA TION 4 T o ensure years of enjoyment from your NADY AUDIO SPM-4250 powered mixer , please read and understand this manual thoroughly before using the unit. 1. INSPECTION Y our NADY AUDIO SPM-4250 was carefully packed at the factory in packaging designed to protect the units in shipment. Before installing and using your unit, carefully exa[...]

  • Page 5

    5 FRONT CONTROLS AND CONNECTIONS CHANNEL SECTION (1) MIC INPUT This electronically balanced XLR input is designed to accept signals from any balanced or unbalanced low impedance (Low Z) microphone. The XLR jack is configured for: Pin1 = ground, Pin2 = positive (+), Pin3 = negative (-). (2) LINE INPUT This 1/4" input is designed to accept balan[...]

  • Page 6

    6 FRONT CONTROLS AND CONNECTIONS (10) sound, add warmth to vocals, or extra punch to bass, drums and synths; the MID control can be used to define the midrange or bring out the vocals; and adjusting the HIGH control can provide a crisp sounding high end. Another very important, yet often overlooked technique is to use the EQ to subtract from the mi[...]

  • Page 7

    7 FRONT CONTROLS AND CONNECTIONS MASTER SECTION (10) POWER ON/OFF SWITCH This switch turns the unit on and off. The SPM-4250 uses relays to ensure quiet turn-on and turn-off. (11) 48V PHANTOM POWER LED Lights to indicate when 48V phantom power is turned on. (12) ECHO EFFECTS DISPLA Y This numeric Effects Display will indicate which of the 16 echo p[...]

  • Page 8

    REAR CONTROLS AND CONNECTIONS 8 (25) PHANTOM POWER ON/OFF SWITCH When this switch is depressed, +48V of phantom power will be supplied to the XLR mic inputs. (26) SPEAKER OUTPUT JACKS The left and right 1/4" speaker outputs can deliver up to 125W RMS per side to 4 Ω loads. (27) POWER CONNECTOR The IEC socket is used to connect the power cord[...]

  • Page 9

    CONNECTIONS 9 This NADY AUDIO mixer uses 4 different types of audio connectors for the various input/output connections: (1) XLR balanced; (2) 1/4” 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&[...]

  • Page 10

    SPECIFICA TIONS 1. INPUT SECTION 2. OUTPUT SECTION The specifications above are correct at the time of printing of this manual. For improvement purposes, all specifications for this unit, including design and appearance, are subject to change without prior notice. 10 3. MIXER SECTION Frequency Response ..............................................[...]

  • Page 11

    11 NOTES[...]

  • Page 12

    SERVICE FOR YOUR NADY AUDIO PRODUCT (U.S.) Should your NADY AUDIO product require service, please contact the Nady Service Department via telephone at (510) 652-241 1, or e-mail at service@nady .com. (International) For service, please contact the NADY AUDIO distributor in your country through the dealer from whom you purchased this product. DO NOT[...]