The modern Acoustic Audio Analyzer System

The FINE R+D FFT system performs all anechoic acoustic measurements on loudspeaker systems, woofers, midranges, tweeters, compression drivers, headphones, headphone speakers, headsets and micro speakers.


The intuitive FINE R+D system uses the same FINE hardware as FINE QC, providing an R&D system with all advanced features such as 16 or more anechoic FFT measurements, T-S parameters, SPL, and impedance with phase, harmonic distortion, waterfall, real-time analysis (RTA), and numerous curve splice/averaging options.

New versions even saves the time data so the engineer can change the FTT window and other settings later, giving unseen flexibility. The latest version has polar plots, contour plots and automatic conversion from measured frequency responses. The new Normalisation Mode is ideal for Microphone measurements and relative SPL responses. For windows 7, 8, 10 (+64bit).

Demo Video

Download FINE R+D Manual (3.2 Mb)

Download FINE R+D Features (0.4 Mb)


 Anechoic Measurements in normal rooms
 Up-to-date Replacement for LMS and MLSSA
 Multiple curves - 16 + 16 + (Run more FINE R+D’s depending on memory)
 Auto-save Time Measurements (Change Window + Smoothing again and again)
 Normalizing of Measurements, i.e. from 1V/50cm to 2.83V@1m
 Real Time Analyser - RTA
 Same calibrated sine wave level for both SPL and Impedance
 THD and 2nd to 9th Harmonic Distortion
 Waterfall plots
 Polar and Contour plots
 Drag and drop measured responses to Polar
 Increments of +/-1, +/-5, +/-10, +/-15, +/-20, +/-30, +/-45 degrees
 Cosine / Hann and Rectangular windows
 Combine bass reflex and woofer measurements
 Curve Averaging, Offset and Splicing with level tracking
 Precise Thiele/Small Parameters at correct drive level
 Preview & Drag & drop files from/to Klippel / LMS / VACS / MLSSA etc.
 Auto Delay (Selectable) with Distance calculation
 Fast measurements < 1 sec
 Measure using keyboard F3 / F4 shortcuts
 FINE Hardware (USB) with built-in 25W Power Amplifier and phantom microphone preamp.
 Improved PRINT w/ customizable Logo
 Windows 7 / 8 / 10 – 64 bit compatible
 Normalizing of curves (As relative Reference)
 Microphone measurements (relative to Ref mic)

Time Window- without / w Reflections
THD and 1 - 9th Harmonics
TS Paramters
RTA Real Time Analyzer
Bass Reflex: Port + woofer

LOUDSOFT - Agern Alle 3 - 2970 Horsholm - Denmark - Phone: (45) 4582 6291 - Fax: (+45) 4576 5708 - E-mail: