AP - The Recognized Standard In Audio Test


AP Accessories


Outboard gear and internal modules to complement your Audio Precision instrument and expand its functionality.

SWR-2755 Switcher
Expand audio analyzers’ 2-channel input and output capabilities.

AUX-0025/0100 Switching Amplifier Measurement Filters
For testing Class D amplifiers: Preconditions the signal before presentation to the analyzer. AUX-0025 2 channels. AUX-0100 8 channels.

DCX-127 Multifunction Module
Provides a DC power supply and GPIO, all controlled by the AP2700 control software.

PSIA-2722 Programmable Serial Interface Adapter
Facilitates connection of chip-level devices, such as A/D converters, D/A converters and sample-rate converters for 2700 Series and Cascade Plus dual-domain audio analyzers.

Option Filters
A wide variety of Option Filters, including low-pass and high-pass filters, bandpass filters, weighting and other noise measurement filters, sharp cutoff filters, de-emphasis filters and receiver testing filters.

Pre-Analyzer   AES17 Filters
Audio Precision offers several pre-analyzer filters for special measurement purposes.

PDM Line Driver
Drive long cable runs from low-power PDM MEMS devices to the APx PDM Option.

G.R.A.S. Measurement Microphones and Simulators

Match world-class audio analyzers with measurement microphones, preamplifiers and simulators from the renowned G.R.A.S. line of acoustic products. Made in Denmark to meet the highest standards of accuracy and reliability.

G.R.A.S. Products

MMK-4 Measurement Microphone Kit

A G.R.A.S. 46AE free-field high precision measurement microphone complete with power module and associated cables. Available with optional calibrator.

MMK-4 Information


Audio Precision offers a variety of audio cables to facilitate interconnection of our analyzer systems to devices under test. These cables have been optimized for performance and convenience...

See the complete listing of cables.

Rackmount Kits

Rackmount kits, both fixed and sliding, offer a convenient way to mount your AP instruments in a standard equipment rack.

See the complete listing of rackmount kits.

Other Accessories

A variety of other useful accessories are available to complement you Audio Precision analyzer.

  • Test Discs
  • APIB USB Adapter

See the complete listing of other accessories.


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