Loudspeaker Measurement System 

Audio Analyzers for R&D & Production Test/Automation. "See what you Hear"

Built on 40+ Years Loudspeaker experience


• Measure Anechoic (10Hz-100kHz) in normal rooms

• No Expensive Anechoic Sound Room needed.

• Test Speakers/Bluetooth, Headphones, Amplifiers & Microphones.

• 16 measurements w Phase, TS-pars, THD, Waterfall, RTA etc.



• EOL Line Test of Speakers, Headphones, Amplifiers and Microphones

• Full QC-test in 1 second: SPL, Sens, Pol, Imp, Rub & Buzz

• Best Industry Rub & Buzz test: Just measure Good & Bad

• Auto Golden Average Speaker Finder

FINE Design Software



Buy directly from LOUDSOFT by email to Dorit Larsen dl@loudsoft.com +45 4582 6291

  • FINE DSP   Intuitive DSP Speaker Design

​Acoustical DSP simulation of 7 Speaker responses with mouse control. Safe Power (SOA), Driver Xmax/Power, Voltage/current and Hybrid (DSP+passive) using 1 amp only

FINE X-over is ideal for optimizing your loudspeaker. See the response changing using the mouse wheel. And let the Intelligent Optimiser find the best response while keeping the minimum impedance

Simulation of Voice Coil Temperature and Compression at High Power in closed Box, Reflex, ABR, Band-pass. All Non-Linear T/S parameters + Thermal data can be imported directly from FINEMotor.

The FINEMotor program is the ultimate tool for prediction of SPL & T/S parameters including BL(x) and Xmax with complete winding data.

FINECone helps you designing better loudspeakers. Calculate the Frequency Response for a new driver or analyse your driver problems. FINECone can drastically reduce time-to-market for new products.

FINE Design Software

Free support

            FINE Speaker Test & Design

In 2007 FINE QC End of Line Test system was introduced. Having worked in the loudspeaker industry since 1974 Peter Larsen was frustrated over the lack of good QC test solutions. The existing systems on the market were all designed by electronic engineers, had interesting features, but lacking the real necessary features required in loudspeaker production.

Inspired by MLSSA, FINE QC was developed using the Farina Sine sweep method. The FFT based system can therefore exclude reflections, eliminating the need for an anechoic chamber. The system also introduced a number of Firsts: Automatic Golden Average Speaker finding, which saves days of work measuring and comparing samples, FINE Hardware with microphone + AD/DA and Power Amp providing simultaneous SPL & impedance Test w/o switching and the unique FINEBuzz algorithm. This is based on Danish Research which found a new principle for Rub & Buzz detection using a combined harmonics and transient method. The latest 3rd generation has replaced human testing of micro speakers in China, and will do a complete test including Rub & Buzz in 0.5-1 second. 

FINE QC is now getting extremely popular in the Industry, also because all measured data are automatically saved for Statistics. Interestingly some of these features have later been adopted by the competition except FINEBuzz.


The intuitive FINE R+D was introduced in 2011 and is the last element in the FINE Circle, which connects all the design software and measuring systems together forming a total development and test system for loudspeakers, headphones and micro speakers.

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

Full FINE R+D 2019 Demo

Peter Larsen


Use Peter's experience, software and engineering skills for Speaker Design Consulting!

All LOUDSOFT products are developed in Denmark using my 40 years’ experience in the loudspeaker Industry

"I find the Rub and Buzz detection system 100% reliable, it really is amazing. Rub and Buzz takes all the guesswork out of the equation."
(Graeme Kidson, Vivid Audio)

"I cannot live without FINE X-over. This wonderful program saves me hours every day"
(Alan Shaw, Harbeth)

Over 115 leading companies are using LOUDSOFT:
Alpine, Apple, BOSE, BRAVOX, B&C, Dai-Ichi, Elac, Forgrand, Harbeth, Harman, JL Audio, Samsung................

Call +45 4582 6291
LOUDSOFT - Agern Alle 3 - 2970 Horsholm - Denmark - Phone: (45) 4582 6291 - Fax: (+45) 4576 5708 - E-mail: dl@loudsoft.com