Samson PL1602 Owner's Manual
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Samson PL1602 Owner's Manual

Samson PL1602 Owner's Manual

Stereo mixer
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Summary of Contents for Samson PL1602

  • Page 2: Table Of Contents

    Introduction 1 System Features 2 Guided Tour 3 Overview 3 Channels 4 Main Section 5 Rear Panel 7 Connecting The PL 1602 - General Suggestions 9 Setting Up and Using the PL 1602 11 Setting the Correct Gain Structure 12 Grounding Techniques 14 Using the Balance Control 16 Using Equalization 17...

  • Page 3: Introduction

    You’ll also find a warranty card enclosed—please don’t forget to fill it out and mail it in so that you can receive online technical support and so we can send you updated information about these and other Samson products in the future.

  • Page 4: System Features

    System Features “PL” stands for “Program/Line” and the name describes the broad range of signals which can be handled by this powerful stereo mixer. In fact, the com- pact design of the PL 1602 belies an extraordinary versatility. Add excellent sound quality to the equation, and you’ve got a product which is equally useful as a live performance mixer, onstage monitor mixer, or keyboard submixer (you’ll find descriptions of each of these applications at the conclusion of this...

  • Page 5: Guided Tour

    CHANNEL 13/14 CHANNEL 15/16 AUX 1L AUX 1L HIGH AUX 1L AUX 1/2 RETURN BALANCE HIGH AUX3/4 RETURN AUX 2R AUX 2R AUX 2R BALANCE LEVEL BALANCE BALANCE LEVEL BALANCE PHONES Main Section SAMSON PL 1602 LINE MIXER LEFT RIGHT POWER...
  • Page 6 Guided Tour - Channels 1: Equalizer (white) - These knobs determine the amount of boost or attenuation in each of two frequency areas. The high and low frequency knobs provide 15 dB of cut or boost CHANNEL 1/2 at 10 kHz and 100 Hz, respectively, with both utilizing a shelving curve. The EQ setting affects both the odd- and even-numbered channel inputs, although the signals remain HIGH AUX 1L...

  • Page 7: Main Section

    SAMSON AUXILIARY RETURNS PL 1602 LINE MIXER AUX 1/2 RETURN BALANCE AUX 3/4 RETURN BALANCE LEFT PHONES POWER 1: Stereo Auxiliary Return Level (blue) - These knobs determine the input level of signal arriving via the PL 1602’s two stereo Auxiliary returns. The “0”...
  • Page 8 Guided Tour - Main Section 4: Headphone jack - Connect any standard stereo headphones to this jack (via a 1/4" TRS plug) for private monitoring of the main stereo output (including all connected Aux returns). The built-in PL 1602 headphone preamp delivers 100 mw at 32 ohms.

  • Page 9: Rear Panel

    Guided Tour - Rear Panel INPUTS BALANCED 10K -30 to +4db TIP + RING - SLEEVE GND. AUX SEND INSERTS RETURNS UNBALANCED MIXER LINKING UNBALANCED 10K +4db SAMSON TECHNOLOGIES CORP., NEW YORK, U.S.A. MIC 1 TRIM TRIM MIC 3 INSERTS TIP RETURN RING SEND...
  • Page 10 Guided Tour - Rear Panel 5: Mic inputs (channels 1 and 3) - Use these electronically balanced XLR jacks to connect a microphone to channels 1 and/or channel 3. These are intended to accept signal from low-level, low-impedance mics but can also be used for signal from other sources (such as direct injection boxes) if the channel’s Trim control (see #6 below) is turned down.

  • Page 11: Connecting The Pl 1602 - General Suggestions

    Connecting The PL 1602 - General Suggestions The actual connections you’ll make to and from the PL 1602 will vary according to the environment you use it in and the particular equipment you have. In the “PL 1602 Applications” sections at the rear of this manual, you’ll find some suggested setups.
  • Page 12 Connecting The PL 1602 - General Suggestions • Matched signals (i.e. the stereo left-right outputs of a keyboard, drum machine, tone generator, effects processor, CD player, or tape recorder), should always be connected to the PL 1602’s paired odd/even channels (i.e. 1L/2R, 3L/4R, etc.).

  • Page 13: Setting Up And Using The Pl 1602

    PL 1602 into any grounded AC socket. 5. Turn on the rear panel Power switch—the “Power” LED in the main section will light up. Setting Up and Using The PL 1602 MAIN OUT BALANCED 600 +4db TIP + RING - SLEEVE GND SAMSON...

  • Page 14: Setting The Correct Gain Structure

    Setting the Correct Gain Structure TRIM TRIM POWER You’re now ready to establish the correct gain structure—the key to getting the best performance from the PL 1602, or from any mixer, for that matter. This is a simple procedure that ensures optimum input and output levels so that no unnecessary noise (caused by too low a signal) or overload distortion (caused by too high a signal) is created.
  • Page 15 If you need to make adjustments to the overall level, use the level control of your power amplifier. If you encounter difficulty with any aspect of setting up or using your PL 1602, you can call Samson Technical Support (1-800-372-6766) between 9 AM and 5 PM EST.

  • Page 16: Grounding Techniques

    Grounding Techniques Hum and buzz are the biggest enemies you face when interconnecting a large number of different pieces of equipment to a central audio mixer. This is because each piece of equipment may operate at a marginally different voltage (this difference is called potential) and, when two devices at slightly different potential are physically connected with audio cabling, the end result can be nasty, extraneous noise (mind you, connecting two devices at very different...
  • Page 17 Grounding Techniques If you’re using the PL 1602 in a fixed location such as a recording studio, you may want to invest the time and money into creating a star ground network. This is by far the best technique for avoiding grounding problems. It involves using a formidable ground source such as a cold water pipe or a copper spike driven into the earth.

  • Page 18: Using The Balance Control

    Using the Balance Control BALANCE AUX 1/2 RETURN BALANCE AUX 3/4 RETURN BALANCE The final Main output of the PL 1602 is stereo—that is, there are two discrete Main output jacks, labeled “left” and “right,” which will normally be routed to two discrete speakers.* Because of this, you will usually be working with a stereo field that ranges from hard left to hard right.

  • Page 19: Using Equalization

    One of the most exciting aspects of using a mixer such as the PL 1602 is the ability to shape a sound, using a process called equalization. But there are few areas of sound engineering more misunderstood than equalization, and, just as good EQ can really help a sound, bad EQ can really hurt it, so read on...

  • Page 20: Using Aux Sends And Returns

    Using Aux Sends and Returns AUX 1L AUX 2R AUX 1/2 RETURN BALANCE AUX 3/4 RETURN BALANCE The PL 1602’s two Auxiliary sends allow you to combine the signal from multiple channels and send the resulting mix to external devices such as effects proces- sors.

  • Page 21: Using Channel Inserts

    Using Channel Inserts In addition to using Auxiliary sends and returns to access outboard devices, the PL 1602 also provides channel inserts for the first six input channels. These should be used when you want to affect just one input signal, as opposed to signal from several inputs—most often, this will be for dynamic processing purposes (such as outboard equalization, compression/limiting, or noise gating).

  • Page 22: Applications Notes

    DO NOT OPEN UNBALANCED 10K 230V(0.15A) TIP + RING - SLEEVE GND MIXER LINKING 50/60Hz 30W SAMSON TECHNOLOGIES CORP., NEW YORK, U.S.A. INPUTS BALANCED 10K -30 to +4db TIP + RING - SLEEVE GND. TRIM TRIM AUX SEND INSERTS TIP RETURN RING SEND...

  • Page 23: Using The Pl 1602 As An Onstage Monitor Mixer

    HEADPHONES LEVEL PEAK PEAK PEAK PEAK PEAK PEAK PEAK MAIN SAMSON TECHNOLOGIES CORP., NEW YORK, U.S.A. MIC 1 -30 to +4db TIP + RING - SLEEVE GND. TRIM TRIM AUX SEND MIC 3 INSERTS TIP RETURN RING SEND UNBALANCED +4db...

  • Page 24: Using The Pl 1602 As A Keyboard Submixer

    MIXER LINKING 50/60Hz 30W PFL (SOLO) PFL (SOLO) PFL (SOLO) PFL (SOLO) PFL (SOLO) SAMSON TECHNOLOGIES CORP., NEW YORK, U.S.A. INPUTS BALANCED 10K -30 to +4db TIP + RING - SLEEVE GND. AUX SEND INSERTS TIP RETURN RING SEND RETURNS UNBALANCED...

  • Page 25: Linking The Pl 1602 With Other Mixers

    PL 1602 Bus Inserts. The signal from that mixer will then be “submixed” in at unity gain; you can then use the main output faders of the secondary mixer to blend its relative level with that of the PL 1602. PL 1602 16 CHANNEL LINE MIXER SAMSON TECHNOLOGIES CORP., NEW YORK, U.S.A. S / N POWER INPUTS BALANCED 10K -30 to +4db TIP + RING - SLEEVE GND.

  • Page 26: Appendix A: Block Diagram

    Appendix A: Block Diagram...

  • Page 27: Appendix B: Changing The Pl 1602 Voltage

    Appendix B: Changing the PL 1602 Voltage Following are step-by-step instructions for changing the mains voltage of the PL 1602. NOTE: The voltage rating will nor- mally be preset correctly at the factory and will require no adjustment unless you use the PL 1602 in a country other than the one in which you purchased the unit.

  • Page 28: Specifications

    Specifications 1. Frequency Response (Unity) 2. THD+N (unity gain, 20 Hz - 20 kHz) 3. Maximum Gain (Mic in to Main Mix out) 4. Crosstalk (Ch - to - Ch, 1 kHz) 5. Residual Noise 6. Headphone Output Level 7. Equalizer High 8.

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