Meyer-sound UPM-1 User Manual download pdf (Page 3)

The P-1A Control

Electronics Unit

The UPM-1 operates as a system

with the P-1A Control Electronics Unit.

Optimized for the UPM-1 and pre-aligned

at the factory, the P-1A contains frequency

response and phase response alignment

circuitry, and Meyer Sound’s exclusive

SpeakerSense

™

driver protection circuitry,

incorporating both peak and RMS signal

limiting.

SpeakerSense protects the UPM-1

loudspeaker components from damage due

to overheating under high power condi-

tions. This unique circuit continuously

monitors the power applied to the UPM-1

drivers, and limits the signal output when

the safe operating limits of the drivers are

exceeded. Until the onset of overload, the

SpeakerSense circuitry has no effect on the

signal.

Six stages of Meyer’s exclusive comple-

mentary phase equalization in the P-1A

Control Electronics Unit give the UPM-1

flat frequency response with outstanding

phase characteristics.

A single-channel device operating at line

level, the P-1A is the final component in

the signal chain before the amplifier.

UltraSeries™ P-1A

Power

Sense Limit

Flat

∞

20

10

8

4

3

2

1

0

Attn dB

5

6

Lo Cut

1 2 3 4

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