Biamp MPA250 User Manual

MPA250

Multi-Purpose Amplifier

Operation Manual

Biamp Systems | 9300 S.W. Gemini Drive | Beaverton, OR | 97008 | USA | +1.503.641.7287 | www.biamp.com

OF CONTENTS

TABLE

Safety Information

Front Panel

Rear Panel

Specifications

Warranty

pgs. 2~5

pg. 6

pg. 7

pg. 8

pg. 9

MPA250

INTRODUCTION

MPA250 single-channel, multi-purpose amplifiers deliver a full 250 Watts of power into
direct or distributed speaker systems. The MPA250 is designed for reliable service in
permanent installations, and comes complete with short-circuit and thermal protection,
including front/rear panel indicators and automatic reset. Plug-in barrier strip input and
screw terminal outputs provide trouble-free, dependable connections. MPA250
amplifiers are UL listed and carry Biamp's five-year warranty.

MPA250 features include:

♦ 250 watts at all outputs (4 ohm direct & transformer)

♦ internal transformer (8 ohm, 70V, 25V, & 25V-CT outputs)

♦ signal/peak & temp/fault indicators on front & rear panels

♦ balanced/unbalanced input selector on rear panel

♦ level control & input sensitivity selector on rear panel

♦ high-pass filter selector on rear panel (12dB/oct. @ 125Hz)

♦ input on plug-in barrier - outputs on screw terminals

♦ complete speaker, short-circuit, & thermal protection

♦ variable speed fan (quiet, reliable - no filter maintenance)

♦ incorporates AES recommended grounding practices

♦ covered by Biamp Systems' five-year warranty

♦ UL / C-UL listed

1

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions.

Keep these instructions.

Heed all warnings.

Follow all instructions.

Do not use this apparatus near water.

Clean only with a dry cloth.

Do not block any of the ventilation openings.

Install in accordance with the manufacturers
instructions.

WARNING - To reduce the risk of electric shock, do
not expose this apparatus to rain or moisture.

The apparatus shall not be exposed to dripping or
splashing and no objects, such as vases, shall be
placed on the apparatus.

Unplug this apparatus during lightning storms or
when unused for long periods of time.

Do not install near any heat sources such as

radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.

Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and a third grounding
prong. The wide blade or the third prong are
provided for your safety. When the provided plug
does not fit into your outlet, consult an electrician
for replacement of the obsolete outlet.

Protect the power cord from being walked on or
pinched particularly at plugs, convenience
receptacles, and the point where they exit from the
apparatus.

Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord
or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.

Use only attachments/accessories specified by the manufacturer.

Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

Unplug this apparatus during lightning storms or when unused for long periods of time.

The appliance inlet shall be readily operable once installed.

WARNING - Terminals marked with the following symbol are Hazardous. Connections to these teminals must be
made by qualified personnel.

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