NTi Audio

Options & Accessories for FX100 Analyzer

Input Switcher FX-IS

FX-IS Input Switcher
Offers 4 additional switched input channels. Multiple FX-IS modules can be installed, thus up to 14 switched inputs may be established.

NTi Audio #: 600 060 013

Channel Extension 2 CH -> 4 CH

Channel Extension 2 CH -> 4 CH
Extends the FX100 base unit from 2 channels to 4 individual input/output channels.

NTi Audio #: 600 060 010

Output Switcher FX-OS

FX-OS Output Switcher
Offers 4 additional switched output channels. Multiple FX-OS modules can be installed, thus up to 14 switched outputs may be established.

NTi Audio #: 600 060 016

Speaker Impedance Power FX-SIP

FX-SIP Speaker Impedance Power
The integrated power amplifier and current sensor offer complete testing of one or two connected loudspeakers or resistive loads (2*10 W or 1*30 W).

NTi Audio #: 600 060 022

Speaker Impedance FX-SIL

FX-SIL Speaker Impedance
Offers impedance response and current measurements of two connected speakers or resistive loads (50 µA to 1 A).

NTi Audio #: 600 060 019

Speaker Impedance FX-SIH

FX-SIH Speaker Impedance

Offers impedance response and current measurements of a connected speaker or resistive load (25 mA to 10 A).

NTi Audio #: 600 060 021

Digital Audio FX-AES

FX-AES Digital Audio
The Digital Audio FX-AES module extends the Flexus FX100 Audio Analyzer with a digital audio generator and analyzer. The sync-input allows the generator clock to be synchronized to an external clock reference.

Interfaces are
  • Balanced XLR (AES-EBU)
  • Unbalanced BNC (S/PDIF)
  • Optical TosLink
  • Sync Input (BNC)
NTi Audio #: 600 060 024

Product Data

Filter for Class-D Amplifier Testing FX-DF

FX-AES Digital Audio
The FX-DF module comprises two analog filters that are linked to the output signals of the amplifier under test. A load (substituting the impedance provided by the speakers in normal operation) is connected to the test system through banana plugs. The filtered signals are automatically routed internally to the two analysis channels.

Interfaces are
  • 2-pin SPEAKON inputs
  • Banana plugs to external load
NTi Audio #: 600 060 026

Measurement Microphone M2010 / M2015

Measurement Microphone M2010 / M2015
The M2010 and M2015 are compact, high-performance measurement microphones dedicated to research, design lab, end-of-line testing and service. They are particularly suited for applications with restricted available space.
Read more ...

M2010 (24 - 145 dBSPL)
NTi Audio #: 600 040 010

M2015 (34 - 155 dBSPL)
NTi Audio #: 600 040 015

Precision Calibrator 94/114 dB

Precision Calibrator 94/114 dB
The precision calibrator is used to ensure accurate sound level measurements. It generates 94 or 114 dBSPL reference tones @ 1 kHz for calibration of 1/2” measurement microphones. The optional 1/4” adapter is required to fit 1/4” measurement microphones.

NTi Audio #: 600 000 388

Product Data

FX100 Rack Mounting

FX100 Rack Mounting
Mount one single instrument or two FX100 Audio Analyzers besides each other into a rack.

Rack Mounting for 1x FX100
NTi Audio # 600 061 005

Rack Mounting for 2x FX100
NTi Audio # 600 061 006

Input Switcher IS-1002

Input Switcher IS-1002
IS-1002 is an advanced, multi-functional audio input switcher with 10 input channels and 2 output channels, featuring individual power supplies for microphones on each input channel. Up to 8 input switchers can be cascaded for multi-channel applications totaling 80 input channels.

NTi Audio #: 600 010 425

Product Data

Output Switcher OS-0210

Output Switcher OS-0210
OS-0210 is an advanced, multi-functional audio output switcher with 2 input channels and 10 output channels. Up to 8 output switchers can be cascaded for multi-channel applications totaling 80 output channels.

NTi Audio #: 600 010 430

Product Data

100 V RT-IB Impedance Box

RT-IB Impedance Box
The 100V Impedance Box is tailored for the impedance response and resonance frequency testing of 70/100V speakers.

NTi Audio #: 600 010 395

Product Data

Turntable TT01

Turntable TT01
The Turntable TT01 allows you to perform directivity measurements (polar plots) of microphones, as well as lightweight loudspeakers and devices. The USB controlled TT01 is supported by NTi Audio software packages, and can also be programmed to your individual needs, using a .NET API or MATLAB library.

NTi Audio #: 600 061 020

Product Data

Environment Sensor

Measures temperature, humidity and barometric pressure of the test environment. The test data are automatically integrated into turnkey test solutions for close monitoring of the manufacturing process stability.

NTi Audio #: 600 010 348

Product Data

Flexus Digital I/O Adapter Box

The Flexus Digital I/O Adapter Box allows to connect the FX100 Audio Analyzer to peripheral devices such as a PLC, foot switch or stack light.

Flexus Digital I/O Adapter Box:
NTi Audio # 600 061 017

Product Data

Foot Switch

The Flexus Foot Switch triggers the test execution via the Flexus I/O Adapter box.

Foot Switch: NTi Audio # 600 061 018

Product Data

Stack Light

The FX100 Audio Analyzer controls the external Stack Light via the built-in auxiliary I/O interface and the Flexus I/O Adapter Box. The stack light has three lamp sections, colored green, orange and red.

Stack Light: NTi Audio # 600 061 019

Product Data

MEMS Mic Interface Box


The 1/2 cycle PDM interface box converts simultaneously the digital output signal of 8 digital MEMS microphones into individual analog audio channels. This accessory applies for applications with parallel testing of 8 MEMS microphones in an EOL production environment. 

The operation is controlled via USB from an external host computer. The PDM interface box provides 0 dBFS reference output signal for calibration and direct connections to digital I/O interfaces. The microphone supply voltage is adjustable. The Left/Right configuration of the microphone is controlled by the PC and the presence of any connected microphone indicated by LED's.

Due to its small size, the PDM interface box can be located near the microphones under test, thus ensuring reliable operation with the short digital interface lines.

MEMS Mic Interface box: NTi Audio # 600 090 000


Audio Analyzer

Contact NTi Audio

NTI Americas Inc.
Tigard, Oregon
Thomas E. Mintner
+1 503 684 7050