poly-planar ME-50 User Manual

Expansion amplifier
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Waterproof Marine Audio
ME-50 Expansion Amplifier

Introduction:

The ME-50 is a 2 channel audio amplifier capable of delivering up to 25W RMS
per channel. It's compact, waterproof design allows for flexible mounting
possibilities, and makes it simple to expand the audio system capabilities for any
vehicle.

Uses:

To add additional loudspeakers to a current audio system
To provide amplification for a separate audio zone
As a stand-alone system amplifier for any audio source

Features:

Powers up to 4, 4 ohm loudspeakers
Internal distortion limiting circuit prevents harsh distortion
Accepts line level, or speaker level input
Polarity switch to optimize interaction with main system
Gain level control to match output to main system
Supports optional external volume control
Waterproof design for marine use
ME-50 Expansion Amplifier
————————————————————————————
1095 Mearns Rd. Warminster PA 18974 TEL (215) 675-7805
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Summary of Contents for poly-planar ME-50

  • Page 1 ME-50 Expansion Amplifier Introduction: The ME-50 is a 2 channel audio amplifier capable of delivering up to 25W RMS per channel. It’s compact, waterproof design allows for flexible mounting possibilities, and makes it simple to expand the audio system capabilities for any vehicle.
  • Page 2 Waterproof Marine Audio INSTALLATION INSTRUCTIONS Mounting the ME-50: 1) Choose a mounting location that is well ventilated. The Amplifier generates significant heat when operating at high power levels. 2) It is preferable to mount the unit such that the ventilation fins are vertical or facing upward.
  • Page 3 Warning, the adhesive is very, very sticky so be sure that everything is functioning, and the panel is positioned very carefully before applying pressure. 1.25” (32mm) Figure 2 - Volume Control Mounting ME-50 Expansion Amplifier ———————————————————————————— 1095 Mearns Rd. Warminster PA 18974 TEL (215) 675-7805 Drill 7/8” (23mm) hole...
  • Page 4 Waterproof Marine Audio Connecting the ME-50 Power and Speakers: 1) The Black and Red power wires should be connected directly to the vehicle battery or main fuse block using heavy gauge wire (AWG #16 or lower). Black = GROUND, Red = + 2) The Blue REMOTE wire turns on the amplifier.
  • Page 5 RCA patch cables. In this case the amplifier volume will be determined by the volume setting of the source component. If the receiver does not have line level outputs, the ME-50 can be connected to the speaker outputs, however line level is preferred due to superior noise and distortion performance.
  • Page 6 Connecting the ME-50 Input: 5) For operation with the external volume control, connect the amplifier inputs to the PRE-AMP LINE OUT of your receiver using shielded RCA patch cables. The Pre-amp line output should be a fixed level output that is independent of the volume setting of the receiver.
  • Page 7 Leave the control at the setting where this begins to become apparent. Figure 6 – Amplifier Switch and gain settings ME-50 Expansion Amplifier ———————————————————————————— 1095 Mearns Rd. Warminster PA 18974 TEL (215) 675-7805 INPUT LEVEL...
  • Page 8 Weight ……………………………………….. 15 oz (.425 Kg) WARRANTY Poly-Planar marine audio systems are warranted to be free of defects in materials and workmanship for a period of two years. Warranty is subject to proper installation and operation within published specifications. Poly-Planar will repair or replace, at its discretion, any unit returned prepaid to its factory and determined to be defective.

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