FINE QCX™ Loudspeaker and Audio QC System
End-of-Line Loudspeaker and Audio QC Test System
Highly accurate, fast and easy to use
FINE QCX Loudspeaker and Audio QC System
Engineered specifically for modern audio manufacturing environments, the FINE QC Loudspeaker and Audio QC System is an essential tool for the final step of the Loudspeaker Design Workflow, Quality Control of the end of line production.
The loudspeaker quality control software delivers fast, reliable, and automated quality control for:
loudspeakers
headphones
micro speakers
microphones
amplifiers
crossovers.
Designed by industry experts with decades of experience, it replaces slow, inconsistent manual testing with high-precision automated analysis.
The system includes the advanced, self-learning FINEBuzz Rub & Buzz detection algorithm, the Best in the Industry- in just 0.5 to 1 second.
Proven by customers to be the most effective alternative to human testing, FINE QC enables clear visual feedback – what our customers describe as:
“See what you hear with FINE QC.”
The supplementary product FINE QC Viewer allows you to that will view AND edit all curves from the FINE QC speaker test system
Key features and applications of Loudspeaker and Audio QC System
Support for all audio components: Easily test smart speakers, drivers, headphones, micro-speakers, microphones, crossovers, and amplifiers.
Rub & Buzz detection with FINEBuzz: Adaptive algorithm learns from production samples and improves over time.
Automated Golden Average Matching: Automatically identify reference speakers and perform acoustic pair matching.
Comprehensive data management: All test measurements are automatically saved for traceability, statistics, and continuous improvement.
Integrated hardware: USB-controlled hardware includes phantom-powered microphones, AD/DA conversion, and built-in power amplifier for simultaneous SPL and impedance testing—no switching required.
Advanced automation and integration with loudspeaker production lines
Seamlessly integrates with automatic or semi-automatic production lines
TTL Automation I/O Interface for control signal exchange
Real-time PASS/FAIL output for reject sorting and QC feedback
Optional second USB interface enables granular reject type categorization for smart assembly line management
Trusted and used by world respected audio brands globally
Trusted by leading global audio brands including Amazon, JL Audio (Garmin), Tristar, and Sinar Baja, the FINE QC system delivers the speed, reliability, and accuracy required for today’s high-volume, high-quality audio manufacturing
FINE QCX Loudspeaker and Audio QC System Applications:
FINE QC can test (Smart) Loudspeaker Systems and drivers, headphones, micro-speakers, microphones, amplifiers and crossovers:
FINE QCX 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 ICP 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
- 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.
Order FINE QCX - Loudspeaker and Audio QC System for 9,500 USD:
Integration in LOUDSOFTs Loudspeaker Design Workflow
FINE QCX forms the final stage of the LOUDSOFT Loudspeaker Design Workflow. Development begins with driver simulation using FINECone, FINEMotor PRO and FINESuspension, continues through enclosure design in FINEBox PRO and system optimisation using FINE DSP or FINE X-Over, before final production validation using FINE QC.
Measured production data can be reviewed using the supplementary FINE QC Viewer, allowing engineers to visualise measurement curves, analyse production trends and refine quality control limits over time.
This integrated workflow provides a seamless path from initial loudspeaker design through to validated production.
Questions about specs, integration or compatibility?
LOUDSOFT Promises:
FINE QCX™ Loudspeaker and Audio QC System
End-of-Line Loudspeaker and Audio QC Test System
Highly accurate, fast and easy to use
Order FINE QCX for 9,500 USD
Questions about specs, integration or compatibility?
Frequently Asked Questions about our Loudspeaker and Audio QC Systems:
What is a Loudspeaker and Audio QC System?
A Loudspeaker and Audio QC System is a specialized quality control platform designed to test the acoustic and electrical performance of audio components—such as loudspeakers, headphones, microphones, amplifiers, and crossovers—at the end of a production line. It ensures that only products meeting strict performance standards reach the market.
How does the FINE QCX system detect Rub & Buzz issues?
The FINE QCX system uses a proprietary, self-learning algorithm called FINEBuzz, the Best in the industry. It analyzes each unit in real-time and identifies Rub & Buzz distortions with extreme precision—replacing the need for subjective human testing.
How fast is the testing process with the FINE QCX system?
FINE QCX performs full acoustic and impedance testing—including Rub & Buzz detection—in as little as 0.5 to 1 second per unit, enabling true end-of-line testing in high-speed production environments.
Can FINE QCX be used with automatic production lines?
Yes. FINE QCX includes an Automation Module and TTL I/O interface for seamless integration with automatic or semi-automatic assembly lines. It supports real-time PASS/FAIL outputs and can direct sorting of reject types using an additional USB interface.
Does the system support all audio products?
Absolutely. FINE QCX supports testing for a wide range of audio products, including smart speakers, drivers, tweeters, headphones, microspeakers, microphones, amplifiers, and crossovers.
Is specialized training required to operate the system?
No. The system is designed to be intuitive and easy to use. Operators can quickly begin using it without the need for extensive technical training or setup.
Which companies use the FINE QCX Loudspeaker and Audio QC System?
Leading audio manufacturers such as Bravox, JL Audio (Garmin), Kygo Life, and Sinar Baja rely on FINE QC(X) to ensure consistent quality in their products.
Can I analyze and store test data for future evaluation?
Yes. FINE QCX automatically saves all test data, enabling statistical analysis, traceability, and ongoing performance optimization across production batches.
