FINE QC™ Test System

Speaker & Audio Test system

The new Automation module is used for seamless interfacing with automatic production lines. For Automatic End Of Line (EOL) testing.
TTL Automation I/O Interface. The TTL signals are used for communication with automatic production lines. PASS / FAIL signals from the QC test can be read/written from/to associated control electronics of an automatic or semi-automatic assembly line.
An additional USB Interface can be added giving total access to all reject types, which can then automatically be sorted on the assembly line.

FINE R+D & FINE QC Applications

This End-of Line QC test system will test (Smart-) Loudspeaker Systems and drivers, headphones, microspeakers PLUS Microphones, Amplifiers and crossovers.

FINE QC includes the effective self-learning Rub & Buzz method FINEBuzz, which is proven by several customers as the best in the industry by replacing human testing, FINE QC will do a complete test including Rub & Buzz in 0.5-1 second. Our customers say: “See what You Hear with FINE QC”

Other features are Automatic Golden Average Speaker finding, Acoustic Pair matching, Auto-Saving of all measurements for Statistics and USB controlled FINE Hardware with Phantom mic + AD/DA and Power Amp providing simultaneous SPL & impedance Test w/o switching


  • Checkbox/ActiveCreated with Sketch. QC testing Loudspeakers/Drivers, (incl. Bluetooth +Micro), Microphones, Crossovers & Amplifiers.
  • Checkbox/ActiveCreated with Sketch. Complete QC Test: SPL, Sensitivity, Polarity, Impedance +Rub & Buzz < 1 second.
  • Checkbox/ActiveCreated with Sketch. Automatic “Golden Average unit” and Automatic saved Statistics.
  • Checkbox/ActiveCreated with Sketch. Automatic pairing of units, also ideal for finding matching units for headphones.
  • Checkbox/ActiveCreated with Sketch. FINEBuzz 3.0 (Rub & Buzz) Test, “Best in the Industry” – Just measure some Good and Bad units.
  • Checkbox/ActiveCreated with Sketch. Average Sensitivity (0.1dB accuracy) and TS parameters.
  • Checkbox/ActiveCreated with Sketch. Reading Barcode serial number will start test.
  • Checkbox/ActiveCreated with Sketch. Automatic printing of serial number, Pass/Fail and for example sensitivity.
  • Checkbox/ActiveCreated with Sketch. All measuring is handled by the hardware giving extremely accurate measurements.
  • Checkbox/ActiveCreated with Sketch. GRAS and LOUDSOFT (DPA) microphones connect directly without extra preamplifiers
  • Checkbox/ActiveCreated with Sketch. Accurate low Latency Bluetooth measurements due to PC not involved in measurement.
  • Checkbox/ActiveCreated with Sketch. Directly measures crossover circuits and (Class D) Amplifiers.
  • Checkbox/ActiveCreated with Sketch. FINE QC Viewer available for checking and making setups for FINE QC.
  • Checkbox/ActiveCreated with Sketch. Drawings for 3 Test Boxes included.
  • Checkbox/ActiveCreated with Sketch. New multi-channel 19” USB-2 FINE Hardware 3:
  • 3 Microphone input channels with selectable 48V Phantom power.
  • Main amplifier 25W, balanced.
  • XLR balanced Line Out and separate stereo Headphone amplifier.
  • Built-in power supply and Power switch on front.
  • Same factory calibrated hardware for FINE QC and FINE R+D.
  • For windows 7, 8 and 10 (+64bit) with dedicated Windows drivers.
QC Preprod Average
Batch / Golden Average
Golden Average No 8 found
Auto Good /Bad Rub & Buzz
TS Paramters
(Class D) Amplifier test
DUT Electronics Testing