Chapter : User’s Guide
APx1701 Transducer Test Interface: User’s Guide
17
APx1701 current sense output must also be connected to an
analyzer balanced input.
Additionally, a low-resistance ground strap should be con-
nected between the chassis grounds of the APx analyzer and
the APx1701.
APx1701/APx analyzer system interconnections
Typical interconnection between the
APx1701 and an APx analyzer,
using one amplifier channel,
one microphone channel and current sense.
Testing a loudspeaker driver
Simplified diagram for acoustic
testing and impedance
measurement of a loudspeaker driver.
Mount the loudspeaker driver, and connect it to the
APx1701 amplifier output channel 1 (pins 1+ and 1– on the
SpeakON connector). See Amplifier Output Connection
below. Mount the measurement microphone on a micro-
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