Samson MPL 1640 manual Introduction

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Introduction

3 auxiliary sends and 3 stereo auxiliary returns (which can be used as 6 monophonic returns). Auxiliary return balance controls allow you to adjust the relative levels of the left and right inputs for each return. Aux send 1 is pre-fader and pre-equalizer, making it ideal for use as a headphone or moni- tor cue mix, while Aux sends 2 and 3 are post-fader and post-equalizer.

Independent 3-band equalization for each channel, with 15 dB of cut or boost for low (80 Hz) and high (10 kHz) frequencies and 12 dB of cut or boost for the mid (800 Hz) frequency.

Constant level pan controls for placing each channel in the left-right stereo spectrum.

Channel PFL (Pre-Fade Listen) switches enable channels to be selectively soloed.

Bus switches on each channel allow signal to be muted or routed to a separate stereo Bus 3/4 output.

Channel input trim controls are continuously adjustable from +4 to -50 dB, making it possible to use the MPL 1640 with a wide variety of signal sources and outboard equipment.

Center detents for all pan, balance, and EQ controls, making it easy to use the MPL 1640 even in low-light situations such as live performance.

Sixteen high-quality short-throw channel faders, along with two independent Main stereo output faders. Each is detented at its “0” (unity gain) position.

Peak input LEDs for each channel, showing you when an input signal is overloading or near overloading (these illuminate 5 dB prior to distortion).

Channel inserts for twelve of the sixteen channels, enabling you to use out- board signal processors such as outboard equalizers, compressor/ limiters, or noise gates in a standard “effect loop.” In addition, Main Mix and Bus 3/4 inserts allow you to process the final output signal in the same way.

The provision of 48v phantom power makes it possible to plug high-quality condenser microphones directly into the MPL 1640, without the need for expensive and cumbersome external power supplies.

A powerful and flexible front-panel metering system, which includes a seven- segment meter that allows you to view at a glance the continuous main out- put level or PFL solo level. Also included are various LEDs which show the status of various conditions within the MPL 1640.

An independent front-panel headphone jack with dedicated volume control.

The MPL 1640 can be mounted in any standard 19” rack (taking 8 rack spaces), making it easy to integrate into any existing system. When rack- mounted, its connector panel rotates to the rear for easy accessibility.

Last but certainly not least, an affordable price. The MPL 1640 has been designed from the ground up to provide versatility and excellent sound quality without breaking the bank.

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Contents Page Connecting the MPL 1640 Setting Up and Using the MPL 1640Introduction Guided TourMPL 1640 Features IntroductionIntroduction Guided Tour Overview SamsonGuided Tour Channel Guided Tour Channel Guided Tour Main Section MPLGuided Tour Main Section Guided Tour Rear Panel MPLGuided Tour Rear Panel Connecting The MPL Sleeve TIP Ring TIP + Ground RingSleeve TIP Ring TIP Return Ground Ring Send Setting Up and Using the MPL Setting the Correct Gain StructureSetting Up and Using the MPL PM EST Grounding Techniques Grounding Techniques Using Bus 3/4 Using Pan Using Equalization Using the Auxiliary Sends and Returns Using Channel Inserts Using PFL Solo Changing the MPL 1640 from Rack-mount to Tabletop Application 1 Using the MPL 1640 as a main live mixer ApplicationsApplication 2 Using the MPL 1640 as an onstage monitor mixer Application 3 Using the MPL 1640 as a keyboard submixer Application 4 Using the MPL 1640 as a recording mixer Compressor / Limiter DATAppendix a Changing the MPL 1640 Voltage Appendix B Block Diagram ReturnSpecifications Frequency ResponseMaximum Input Level ±3 dB