FINE QC™ 2018 Speaker Production Test

FAST Speaker & Headphone Audio Test System



The new FINE QC is based on the new FINE Hardware 3, which is also used for FINE R+D 2018. This End-of Line QC test system will test (Active-) Loudspeaker Systems and drivers, headphones & drivers and microspeakers AND Amplifiers plus crossovers.

FINE QC includes the effective self-learning Rub & Buzz method FINEBuzz, which is proven as the best in the industry by replacing human testing of micro speakers in China, and will do a complete test including Rub & Buzz in 0.5-1 second.

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

 

 

Demo Video


Download FINE QC Manual (3.3 Mb)


Applications:

  • Loudspeaker QC (End of Line / incoming)

  • Active / Bluetooth / Wireless Speaker QC

  • Amplifier & Electronic testing

  • ​Crossover Test

  • ​Headphone driver QC

  • Micro Speaker QC

  • ​Microphone Test

Measures:

- SPL (with individual tolerances)
- Sensitivity (Average in band)
- Polarity +/-
- Rub & Buzz
- Impedance:

​Complete Test of all above < 0.5 second
 

FINE QC / Headphone with Noise Cancel Test   >>


Download FINE QC Features (0.1 Mb)
 
Features:• QC testing Loudspeakers/Drivers, (incl. Bluetooth +Micro), Microphones, Crossovers & Amplifiers
• Complete QC Test: SPL, Sensitivity, Polarity, Impedance +Rub & Buzz < 1 second
• Automatic “Golden Average unit” and Automatic saved Statistics
• Automatic pairing of units, also ideal for finding matching units for headphones
• FINEBuzz 3.0 (Rub & Buzz) Test, “Best in the Industry” – Just measure some Good and Bad units
• Average Sensitivity (0.1dB accuracy) and TS parameters
• Reading Barcode serial number will start test
• Automatic printing of serial number, Pass/Fail and for example sensitivity
• All measuring is handled by the hardware giving extremely accurate measurements
• GRAS and LOUDSOFT (DPA) microphones connect directly without extra preamplifiers
• Accurate low Latency Bluetooth measurements due to PC not involved in measurement
• Directly measures crossover circuits and (Class D) Amplifiers
• FINE QC Viewer available for checking and making setups for FINE QC
• Drawings for 3 Test Boxes included
• New multi-channel 19” USB-2 FINE Hardware 3:
     o 3 Microphone input channels with selectable 48V Phantom power
     o Main amplifier 25W, balanced
     o XLR balanced Line Out and separate stereo Headphone amplifier
     o Built-in power supply and Power switch on front
     o Same factory calibrated hardware for FINE QC and FINE R+D
     o 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 

LOUDSOFT  FL1 Microphone, made in Denmark.
Very stable pre-polarized condenser microphone for 48V Phantom power.

 

Download FL1 Data Sheet (0.2 Mb)

 

FINE Hardware 3 with 3 microphone inputs
Optional 48V Phantom Power
FL1 & GRAS Microphones connects without preamp
Built-in 25 W amplifier
USB2 control

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