Extron electronic MPA 401 manual Audio Inputs

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Audio Inputs

Audio Inputs

Use the rear panel receptacles (see figure at right) to connect audio sources to the amplifier. Wire the connectors as shown below. The balloon numbers refer to the figure to the right.

NOTE: The ground pins of the input receptacles may be labeled Manual background or Manual background (see the images to the right). The wiring and function are the same whichever way the product is labeled.

2

2

L

3

4

 

 

(SUMMED)

 

L(SUMMED) R

 

 

R

 

 

INPUTS

INPUTS

L (MONO)

3

4

 

Manual background R

L (MONO) R

BRCA input receptacles — These receptacles accept unbalanced, line level audio signals. The input can be stereo, using two RCA connectors, or mono, using a single RCA connector plugged into the left (Summed) receptacle.

If unused, the receptacles automatically terminate to lower the noise floor.

C3.5 mm TRS stereo input receptacle — This input also accepts unbalanced, line level audio signals through a

3.5 mm tip ring sleeve (TRS) stereo connector. If unused, the receptacle automatically terminates to lower the noise floor.

Tip (+)

Manual background Sleeve ( ) Manual background

RCA Connector

Tip (L)

Ring (R)

Manual background Sleeve (Manual background)

DBalanced or unbalanced input receptacle — This 5-pole 3.5 mm captive screw receptacle accepts line level, balanced or unbalanced, mono or stereo audio signals (see the attention and the note on page 6 for important information about connecting wires to captive screw connectors).

Tip

L

 

Sleeve

 

Tip

 

Sleeve

R

Unbalanced Stereo Input

L

Tip

Sleeve

R

Unbalanced Mono Input

3.5 mm TRS Connector

Tip

L

Ring

Sleeves

 

Tip

 

Ring

R

 

Balanced Stereo Input

Tip

L

 

Ring

 

Sleeve

 

 

R

Balanced Mono Input

MPA 401-70V and MPA 401-100V • Rear Panel and Cabling

6

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Contents MPA 401 Series Mini Power AmplifiersUser Guide AudioSafety Instructions Safety Instructions EnglishChinese Simplified(简体中文) Instructions de sécurité FrançaisFCC Class B Notice Specifications Availability Conventions Used in this GuideNotifications Contents Setup and OperationIntroduction Rear Panel and CablingMPA 401-70Vand MPA 401-100V Contents Important Safety Instructions Important Safety InstructionsMPA 401-70Vand MPA 401-100VFeatures IntroductionMPA 401-70Vand MPA 401-100VDescription Figure 1. Typical Application for the MPAMPA 401-70Vand MPA 401-100VFeatures MPA 401-70Vand MPA 401-100V IntroductionRear Panel Power Input Audio Inputs Remote Input Connector Speaker ConnectionsRear Panel and Cabling Rear PanelPower Input Audio Inputs Wiring for remote control Remote Input PortPage Speaker Connections Setup and Operation Front Panel FeaturesFront Panel Features Setting Input Level Setting Bass and Treble Remote Control OptionsSetting Input Level Setting Bass and TrebleRemote Control Options MPA 401-70Vand MPA 401-100V Setup and OperationExtron MPA Extron SI 3CT LPTroubleshooting Amplifier Fails to Exit Standby Mode PromptlyAmplifier Enters Standby Mode Too Early Plenum Placement Tabletop PlacementReference Material MountingRack Mounting Procedure Under-desk, Through-desk,and Projector MountingExtron Warranty