MPA 401 Retired

Mono 70/100 V Amplifier - 40 Watts

Key Features

40 watts rms output power:
MPA 401-70V - 1 x 40 watts @ 70 volts
MPA 401-100V - 1 x 40 watts @ 100 volts
ENERGY STAR® qualified amplifier
Extron Patented CDRS™ - Class D Ripple Suppression
Bass, treble, and input level controls
UL 2043 plenum rated
Balanced and unbalanced buffered audio inputs

Model	Version Description	Part #
MPA 401-70V	70 V Mono Amp - 40 Watts	60-845-01	Retired
MPA 401-100V	100 V Mono Amp - 40 Watts	60-845-11	Retired

This product has been retired.

Suggested Replacement: MPA 601

The Extron MPA 401 is a quarter rack width, convection-cooled mono amplifier delivering 40 watts rms output power. This UL 2043, plenum rated design meets UL requirements for in-ceiling installations. The MPA 401 is an ENERGY STAR® qualified amplifier with an Extron exclusive, highly efficient, advanced Class D amplifier design. It also features patented CDRS™ - Class D Ripple Suppression technology that provides a smooth, clean audio waveform and an improvement in signal fidelity over conventional Class D amplifiers. Three buffered inputs are available so three separate sources can be connected without altering performance. The Extron exclusive, high efficiency design generates very little heat and allows the amplifier to be convection cooled and operate in environments with little or no ventilation.

Energy Efficient Amplifier with Auto Power-Down

The MPA 401 ENERGY STAR qualified amplifier is an energy efficient product that conserves energy and reduces costs. With an auto power-down feature that automatically places the amplifier into standby after 25 minutes of inactivity, it consumes just 8 watts when idle and less than 1 watt in standby mode.

The MPA 401 is housed in a compact 1U, quarter rack width enclosure. This amplifier is UL 2043 plenum rated, allowing for a concealed installation above a drop ceiling to prevent theft while providing convenient placement of AV equipment.

The MPA 401 delivers 40 watts rms for high impedance speaker systems in voice reinforcement and distributed audio applications. The MPA 401 is available in 70 volt and 100 volt models.

The MPA 401 accepts balanced and unbalanced stereo or mono input signals. The front panel includes detented controls for bass, treble, and input level. The MPA 401 combines the left and right channels into a single mono output. An advanced, automatic clip limiter protects speakers from clipping distortion. For applications requiring volume adjustment and muting control from a location other than the amplifier, remote control capability is available using the optional Extron VCM 100 or VCM 200 analog volume and mute controller or VC 50 analog volume controller.

Features

Inputs: Balanced or unbalanced stereo or mono on a captive screw connector; unbalanced stereo or mono on RCA connectors and a 3.5 mm stereo mini jack

Speaker Outputs: 5 mm screw-lock captive screw connector

40 watts rms output power:
MPA 401-70V - 1 x 40 watts @ 70 volts
MPA 401-100V - 1 x 40 watts @ 100 volts

ENERGY STAR® qualified amplifier — The MPA 401 is an ENERGY STAR qualified amplifier and energy efficient product that conserves energy and reduces costs.

Extron Patented CDRS™ - Class D Ripple Suppression — CDRS is an Extron Patented technology that provides a smooth, clean audio waveform and an improvement in signal fidelity over conventional Class D amplifier designs. CDRS eliminates the high frequency switching ripple characteristic of Class D amplifiers, a source of RF emissions which can interfere with sensitive AV equipment such as wireless microphones.

Bass, treble, and input level controls

UL 2043 plenum rated — The MPA 401 meets UL 2043 for smoke and heat release for installation within a plenum airspace above a drop ceiling - power supply excluded. Above-the-ceiling placement conceals the amplifier to prevent theft, and is convenient for installing equipment when space inside the room is limited.

Balanced and unbalanced buffered audio inputs — Accepts balanced or unbalanced audio input signals on a captive screw connector, and unbalanced audio on both RCA connectors and a 3.5 mm stereo mini jack. The three inputs are individually buffered, and can be connected to three separate sources at the same time without altering performance.

Convection cooled, fanless operation — The MPA 401 does not require internal fans or vents for cooling, ensuring quiet, reliable operation. It generates substantially less heat than conventional power amplifiers, making it ideal for rack-mount applications.

Auto power-down with fast power-up — The MPA 401 meets ENERGY STAR qualification requirements with an auto power-down feature that automatically places the amplifier into standby after 25 minutes of inactivity, dramatically reducing power consumption. It quickly returns to full power status in less than one second upon signal detection.

Automatic clip limiter — Detects actual onset of clipping by comparing input and output waveforms. Gain is automatically reduced without audible artifacts to protect speakers from clipping distortion.

Remote volume and mute control port — In basic installations without control systems, this port allows the MPA 401 to be remotely controlled using the optional Extron VCM 100 or VCM 200 analog volume and mute controller or VC 50 analog volume controller.

5 mm screw-lock captive screw speaker connector — Enables simple, secure connections with 22 to 12 AWG speaker cables.

Rack-mountable 1U, quarter rack width metal enclosure

Highly reliable, energy-efficient external universal power supply included, replacement part #70-769-01 — Provides worldwide power compatibility, with high demonstrated reliability and low power consumption for reduced operating costs.

OPTIONAL ACCESSORIES
	MLC Plus 84 D	MediaLink Plus Controller - Decorator-Style Wallplate
	MLC Plus 84 EU	MediaLink Plus Controller - EU Wallplate
	MLC Plus 84 MK	MediaLink Plus Controller - MK Wallplate
	MLC Plus 100	MediaLink Plus Controller
	MLC Plus 100 AAP	MediaLink Plus Controller with AAP Opening
	MLC Plus 200	MediaLink Plus Controller
	MLC Plus 200 AAP	MediaLink Plus Controller with AAP Opening
	PPC 25	Priority Page Controller
	MLA VC10 Plus	Volume Control Module
	VC 50	Volume Control Wallplate
	VCM 200 D	Volume and Mute Controller - Decorator-Style Wallplate
	VCM 200 EU	Volume and Mute Controller - EU Wall Frame for Flex55 and EU Enclosures
	SPK 14	14 AWG Speaker Cable
	SPK 16	16 AWG Speaker Cable
	SPK 18	18 AWG Speaker Cable
	Mini Audio Cables	3.5 mm Male to Male Stereo Audio Cables
	RCA Audio Cables	RCA Male to Male Stereo Audio Cables
	Half Rack Shelf System	Half-Rack Width Rack Shelf and Accessories
	UTS 100 Series	Under Table Shelf System
	RSB 126	Basic Rack Shelf for 6" Deep Products
	RSU 126	Universal Rack Shelf Kit for 6" Deep Products
	MBD 129	Through-Desk Mount Kit for 1/4 or 1/2 Rack Width, Two-Piece Enclosures
	MBU 125	Low-Profile Mount Kit for 1/4 and 1/2 Rack Width, Two-Piece Enclosures
	PMK 155	Pole and select Cable Cubby Enclosures Mounting Kit for up to 1/2 Rack Width Products
	PMK 350	Low Profile Pole Mount Kit for Multiple Products

OPTIONAL ACCESSORIES

MLC Plus 84 D

MediaLink Plus Controller - Decorator-Style Wallplate

MLC Plus 84 EU

MediaLink Plus Controller - EU Wallplate

MLC Plus 84 MK

MediaLink Plus Controller - MK Wallplate

MLC Plus 100

MediaLink Plus Controller

MLC Plus 100 AAP

MediaLink Plus Controller with AAP Opening

MLC Plus 200

MediaLink Plus Controller

MLC Plus 200 AAP

MediaLink Plus Controller with AAP Opening

PPC 25

Priority Page Controller

MLA VC10 Plus

Volume Control Module

VC 50

Volume Control Wallplate

VCM 200 D

Volume and Mute Controller - Decorator-Style Wallplate

VCM 200 EU

Volume and Mute Controller - EU Wall Frame for Flex55 and EU Enclosures

SPK 14

14 AWG Speaker Cable

SPK 16

16 AWG Speaker Cable

SPK 18

18 AWG Speaker Cable

Mini Audio Cables

3.5 mm Male to Male Stereo Audio Cables

RCA Audio Cables

RCA Male to Male Stereo Audio Cables

Half Rack Shelf System

Half-Rack Width Rack Shelf and Accessories

UTS 100 Series

Under Table Shelf System

RSB 126

Basic Rack Shelf for 6" Deep Products

RSU 126

Universal Rack Shelf Kit for 6" Deep Products

MBD 129

Through-Desk Mount Kit for 1/4 or 1/2 Rack Width, Two-Piece Enclosures

MBU 125

Low-Profile Mount Kit for 1/4 and 1/2 Rack Width, Two-Piece Enclosures

PMK 155

Pole and select Cable Cubby Enclosures Mounting Kit for up to 1/2 Rack Width Products

PMK 350

Low Profile Pole Mount Kit for Multiple Products

RELATED PRODUCTS
	XPA 1002	Two Channel Low Impedance Amplifier 60/100 Watts Per Channel
	XPA 2001	Mono 70/100 V Amplifier - 200 Watts
	XPA 2004	Four Channel Amplifier - 200 Watts Per Channel
	XPA 4002	Two Channel Amplifier - 400 Watts Per Channel

SIMILAR PRODUCTS
	MPA 152 Plus	Stereo Amplifier - 15 Watts Per Channel
	MPA 601	Mono 70/100 V Amplifier - 60 Watts

SIMILAR PRODUCTS

MPA 152 Plus

Stereo Amplifier - 15 Watts Per Channel

MPA 601

Mono 70/100 V Amplifier - 60 Watts

Specifications

MPA 401 Series

Audio

Voltage gain

MPA 401-70V

RCA and TRS inputs

222x (47 dB)

Captive screw input

57x (35 dB)

MPA 401-100V

RCA and TRS inputs

317x (50 dB)

Captive screw input

81x (38 dB)

CMRR

75 dB (typical) @ 1 kHz

Bass adjustment

±10 dB @ 100 Hz

Treble adjustment

±10 dB @ 10 kHz

Audio input

Number/signal type

1 stereo/mono, balanced/unbalanced input
2 stereo/mono, unbalanced inputs
(The three inputs are individually buffered and mixed together. Stereo signals are actively summed into a mono signal.)

Connectors

(1) 3.5 mm captive screw connector, 5 pole (main input)
(1) 3.5 mm mini audio jack (tip, ring, sleeve)
1 pair RCA

Impedance

>10k ohms balanced/unbalanced, DC coupled

Maximum level

+20 dBu (balanced, captive screw) or +4 dBV (unbalanced, RCA/TRS) at 1% THD+N

Input sensitivity

RCA and TRS inputs

-10 dBV

Captive screw input

+4 dBu if driven by one input
-2 dBu if both inputs are summed

Input signal detection threshold

RCA and mini audio jacks: -44 dBv ±3 dB, unbalanced
Captive screw connector: -30 dBu ±3 dB, balanced

NOTE	0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

Audio output

Number/signal type

MPA 401-70V

1 single channel (mono) 70 V

MPA 401-100V

1 single channel (mono) 100 V

Connectors

(1) 5 mm screw lock captive screw connector, 2 pole

Load impedance

MPA 401-70V

125 ohms minimum

MPA 401-100V

250 ohms minimum

Frequency response

80 Hz to 20 kHz, +1 dB/-3 dB, 1 watt

THD + Noise

<0.2% @ 1 kHz at 3 dB below clipping

S/N

>75 dB, 20 Hz to 20 kHz, unweighted

Damping factor

>100

High pass filter

80 Hz, 12 dB/octave roll off

Amplifier type

Class D

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

Communications — amplifier

Control port

(1) 3.5 mm captive screw connector, 3 pole

Pin configuration

Pin 1 = +10 VDC (50 mA max.), pin 2 = volume/mute control (variable voltage), pin 3 = GND

Volume control voltage range

0 V (mute) to 10 V (maximum volume)

General

Power supply

External
Input: 100-240 VAC, 50-60 Hz
Output: 12 VDC, 3 A, 36 watts

Power consumption

Typical (1/8 power), MPA 401-70V

Device

11.0 watts, 125 ohm load

Device and power supply

13.9 watts, 125 ohm load

Typical (1/8 power), MPA 401-100V

Device

12.3 watts, 250 ohm load

Device and power supply

15.3 watts, 250 ohm load

Quiescent, MPA 401-70V

Device

4.6 watts

Device and power supply

7.1 watts

Quiescent, MPA 401-100V

Device

5.9 watts

Device and power supply

8.4 watts

Standby

<1 watt (triggered after 25 minutes [±5 minutes] with no signal)

Ambient temperature/humidity

Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

Cooling

Convection, no vents

Thermal dissipation

Standby

Device and power supply

<1 watt (3 BTU/hr)

Idle, MPA 401-70V

Device

4.6 watts (16 BTU/hr)

Device and power supply

7.1 watts (24 BTU/hr)

Idle, MPA 401-100V

Device

5.9 watts (20 BTU/hr)

Device and power supply

8.4 watts (29 BTU/hr)

1/8 power, MPA 401-70V

Device

6.0 watts (20 BTU/hr)

Device and power supply

7.1 watts (24 BTU/hr)

1/8 power, MPA 401-100V

Device

7.3 watts (25 BTU/hr)

Device and power supply

10.3 watts (35 BTU/hr)

Mounting

Rack mount

Yes, with optional 1U rack shelf or back of rack mounting kit

Furniture mount

Yes, with optional under-desk mounting kit

Pole mount

Yes, with optional pole mounting kit

Enclosure type

Metal

Enclosure dimensions

1.7" H x 4.3" W x 6.0" D (1U high, quarter rack wide)
(4.3 cm H x 10.9 cm W x 15.2 cm D)
(Depth excludes connectors.)

Product weight

0.6 lbs (0.3 kg)

Shipping weight

3 lbs (2 kg)

Vibration

ISTA 1A in carton (International Safe Transit Association)

Regulatory compliance

Safety

UL rated for use in plenum airspaces: meets UL 2043 for heat and smoke release, excluding the power supply; meets UL 60065 and IEC 60065 for AV equipment safety.

MPA 401-70V

CCC, CE, c-UL, UL

MPA 401-100V

CE, c-UL, UL

EMI/EMC

CE, C-tick, FCC Class B, ICES Class B, KCC, VCCI

Environmental

Complies with the appropriate requirements of CEC, ENERGY STAR^® (ENERGY STAR® qualified amplifier), EU code of conduct, RoHS, WEEE

Product warranty

3 years parts and labor

NOTE	All nominal levels are at ±10%.

NOTE	Specifications are subject to change without notice.

(8.1-073114-D17)

MPA 401 Retired

Energy Efficient Amplifier with Auto Power-Down

Features

Specifications

Diagram

Panel Drawing