User guide

ManualsBrandsExtron electronics ManualsAmplifierMPA 401-100V

68-1436-01 Rev. C

12 10

MPA 401 Series

User Guide

Audio

Mini Power Ampliﬁers

Summary of content (24 pages)

PAGE 1
User Guide Audio MPA 401 Series Mini Power Amplifiers 68-1436-01 Rev.
PAGE 2
Precautions Safety Instructions • English Warning This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. Power sources • This equipment should be operated only from the power source indicated on the product. This equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.
PAGE 3
FCC Class B Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
PAGE 4
PAGE 5
Contents Introduction............................................. 1 MPA 401-70V and MPA 401-100V Description. 1 MPA 401-70V and MPA 401-100V Features...... 2 Rear Panel and Cabling........................... 3 Rear Panel Cabling............................................ 3 Power Input...................................................... 4 Audio Inputs..................................................... 5 Remote Input Connector.................................. 6 Speaker Connections.....................
PAGE 6
MPA 401-70V and MPA 401-100V • Contents vi
PAGE 7
Introduction This guide contains information about the Extron MPA 401-70V and MPA 401‑100V mini power amplifiers with instructions for experienced installers on how to install, configure, and operate the equipment. Unless otherwise specified, references in this guide to the “amplifier,” “MPA,” or “MPA 401” relate to the features or operation of either amplifier.
PAGE 8
MPA 401-70V and MPA 401-100V Features Patented CDRS (Class D Ripple Suppression) — CDRS is an Extron patented technology that eliminates high frequency switching ripple and EMI emissions found in all Class D amplifiers. CDRS dramatically improves audio performance over conventional Class D amplifier designs and enables Extron power amplifiers to be situated near wireless A/V devices without RF interference.
PAGE 9
Rear Panel and Cabling This section describes the rear panel features and cabling of the MPA 401‑70V and MPA 401‑100V. zz Rear Panel Cabling zz Power Input zz Audio Inputs zz Remote Input Connector zz Speaker Connections Rear Panel Cabling The illustration below shows the rear panel of the amplifiers: INPUTS CLASS 2 WIRING DO NOT GROUND OR SHORT SPEAKER OUTPUTS! US ® LISTED (MONO) L 17TT AUDIO/VIDEO APPARATUS 10V POWER 50mA VOL/MUTE MPA 401-70V OUTPUT R L (MONO) R 12V 1.
PAGE 10
Power Input a Power connector — The MPA 401-100V ships with an Extron 36 W desktop power supply (PS 1230 [part number 70-769-01]). The MPA 401-70V ships with either the Extron 36 W desktop power supply or the Extron 12 VDC, 5 A power supply (EPS 1250 C [part number 70-725-01]). When using the EPS 1250 C power supply, connect the two pole, 3.5 mm captive screw connector from the power supply to the power socket on the rear panel of the MPA 401‑70V, as shown below in figure 3.
PAGE 11
When using the PS 1230 power supply with either amplifier, connect one end of the DC power cord to one of the two pole, 3.5 mm captive screw connectors on the power supply. Connect the other end into the power socket on the rear panel of the amplifier, as shown in figure 4 below. The power cord connectors are already correctly wired when shipped. CAUTION: When the PS 1230 power supply is connected to the MPA 401, it must not be shared with any other devices.
PAGE 12
Remote Input Connector e Remote input connector (see figure 2) — This 3-pole captive screw connector allows the option of using a wall‑mounted audio controller or MediaLink product to control volume and mute levels remotely. Options for remote control include the Extron VC 50, VCM 100 AAP, VCM 100 MAAP, or MLA VC10. Third party 10k potentiometer volume controllers can also be connected to this port. See the notes on page 4 for important information about connecting wires to captive screw connectors.
PAGE 13
Setup and Operation This section provides information about the front panel features and operation of the MPA 401‑70V and MPA 401-100V: zz Front Panel Features zz Setting Input Level zz Setting Bass and Treble zz Remote Control Options Front Panel Features The front panels of the MPA 401‑70V and MPA 401‑100V are identical and shown below: 2 LEVEL BASS TREBLE 1 MPA 401 MINI POWER AMPLIFIER Figure 5.
PAGE 14
Setting Input Level LEVEL BASS TREBLE Adjust the input level as follows: 1. If necessary, unplug the remote plug from the unit. MPA 401 2. If connecting the amplifier to a system with MINI POWER AMPLIFIER adjustable volume, set the volume to its lowest point. Then adjust the level potentiometer fully counterclockwise to its minimum setting. 3. Set the system volume to its maximum level. No sound should come out. 4. Slowly increase the amplifier level until sound distortion starts to occur.
PAGE 15
Remote Control Options Extron SI 3CT LP a Full-Range Ceiling Speakers Extron VCM 100 AAP Volume/Mute Controller TE MU ME LU VO b Extron P M VC A 0A 10 MLC 104 IP Plus Controller 1 V 1-70 G RIN WI ND S 2 OU AS GR T S! CL NOT OR UT SH TP DO OR OU R KE mA EA 50 E UT V 10 L/M VO US ® TED LIS T O INPU AY O) 2 PL 40 MPA DIS OF F 3 ON UT TP ME OU 4 LU VO FIG SP 17T IDE IO/V TUS AUD ARA APP TS CON 70V 4 IP C 10 ML E ON MOT (M RE L O) R ON L (M WER Extron MP
PAGE 16
Specifications Audio Voltage gain MPA 401-70V RCA and TRS inputs �� Captive screw input �� MPA 401-100V RCA and TRS inputs �� Captive screw input �� CMRR �� Bass adjustment �� Treble adjustment �� 222x (47 dB) 57x (35 dB) 317x (50 dB) 81x (38 dB) 75 dB (typical) @ 1 kHz ±10 dB @ 100 Hz ±10 dB @ 10 kHz Audio input Number/signal type �� 1 stereo/mono, balan
PAGE 17
Output power MPA 401-70V �� 40 watts (rms), 70 V, 1 kHz, 1% THD MPA 401-100V �� 40 watts (rms), 100 V, 1 kHz, 1% THD Control/remote — amplifier Control port �� (1) 3.5 mm captive screw connector, 3 pole Pin configuration �� Pin 1 = +10 VDC (50 mA max.
PAGE 18
Parts and Accessories This section of the user guide contains information about: zz Included Parts zz Optional Accessories Included Parts Description Part Number MPA 401-70V or MPA 401-100V 60-845-01 EPS 1250 C External 12 VDC, 5 A power supply (MPA 401-70V) or PS 1230 External 36 W power supply (MPA 401-70V and MPA 401-100V) 70-725-01 60-845-11 70-769-01 IEC power cord (1) 2-pole 5 mm terminal block plug (1) 5-pole 3.5 mm captive screw plug (1) 3-pole 3.5 mm captive screw plug (1) 2-pole 3.
PAGE 19
Optional Accessories Description Part Number RSU 126 1U, 6 inch deep, universal rack kit 60-190-10 RSB 126 1U, 6 inch deep basic rack shelf 60-604-11 RSU 129 1U, 9.5 inch deep, universal rack kit 60-190-01 RSB 129 1U, 9.
PAGE 20
Mounting This section outlines the various mounting options available for the MPA 401 series amplifiers: zz Plenum Placement zz Tabletop Placement zz Rack Mounting zz Under-desk Mounting zz Through-desk Mounting zz Projector Mounting Plenum Placement The MPA 401-70V and MPA 401-100V amplifiers meets UL 2043 requirements for heat and smoke release. They can be installed in the ceiling, out of sight, with reduced risk of theft.
PAGE 21
Rack Mounting UL Guidelines For Rack Mounting The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation of these products in a rack: 1. Elevated operating ambient temperature — If the unit is installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient temperature.
PAGE 22
Rack Mounting Procedure The unit can be mounted on any of these optional Extron rack systems: zz RSU 126: 6 inch deep, 1U rack shelf kit (part number 60-190-10) zz RSB 126: 6 inch deep, 1U basic rack shelf (part number 60-604-11) zz RSU 129: 9.5 inch deep, 1U rack shelf kit (part number 60-190-01) zz RSB 129: 9.5 inch deep, 1U basic rack shelf (part number 60-604-02) To mount the amplifier on a rack shelf, follow the instructions provided with the shelf accessories.
PAGE 23
Extron® Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase; touchscreen display and overlay components are covered for 1 year.
PAGE 24
Extron USA - West Headquarters Extron USA - East Extron Europe Extron Asia Extron Japan Extron China Extron Middle East +800.633.9876 +800.633.9876 +800.3987.6673 +800.7339.8766 Inside Asia Only +81.3.3511.7655 +81.3.3511.7656 FAX +400.883.1568 Inside Europe Only +971.4.2991800 +971.4.2991880 FAX +1.919.863.1794 +1.919.863.1797 FAX +31.33.453.4040 +31.33.453.4050 FAX +65.6383.4400 +65.6383.4664 FAX Inside USA/Canada Only +1.714.491.1500 +1.714.491.