Dayton Audio DATS LA  Speaker & Audio Component Test System

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Product description Dayton Audio DATS LA Loudspeaker analyzer

The Dayton Audio DATS LA (Digital Audio Test System Loudspeaker Analyzer) revolutionizes loudspeaker measurement with precision and affordability. This compact, computer-controlled system features a powerful 100W AC/DC amplifier allowing quick and easy small and large signal parameter testing. Its patented symmetry test method (U.S. Patent #11,272,301) uses multiple DC-biased sweeps to analyze non-linearity and asymmetry—capabilities once limited to high dollar test systems. With precise DC bias control and proprietary data processing, DATS LA offers unparalleled insights into driver performance, making it an essential tool for speaker designers, engineers, and audio professionals.

Click the link below to download the latest version of the DATS LA software

DATS LA SOFTWARE DOWNLOAD

Highlights

• A cutting-edge hardware and software suite capable of evaluating both linear and non-linear aspects of loudspeakers.
• Utilizes a patented technique (U.S. Patent #11,272,301) for measuring loudspeaker non-linearity and asymmetry through multiple DC biased sweeps
• By precisely controlling the DC bias and employing a unique data processing method, DATS LA provides insightful data for optimizing loudspeaker motors and suspensions
• A robust 100-watt AC/DC amplifier facilitates precise measurement of drivers' small or large signal parameters under varying input levels
• Compact and durable design can be easily transported and used anywhere, without sacrificing reliability or accuracy.
• Provides functionality equivalent to industry standard loudspeaker testing systems, but at a fraction of the cost
• A critical tool for speaker designers, engineers, and researchers looking to push the boundaries of driver development and performance

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Productdetails

Dayton Audio OmniMic 40k Measurement System

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DATS LA in use on work bench

The Dayton Audio DATS LA (Digital Audio Test System Loudspeaker Analyzer) represents the next evolution in loudspeaker measurement, integrating cutting-edge hardware and proprietary data analysis to deliver unprecedented insights into driver performance. Designed for engineers, speaker designers, and audio professionals, the DATS LA goes beyond standard impedance measurements, offering an advanced DC-biased analysis (U.S. Patent #11,272,301) that reveals critical non-linearities in motor force (Bl) and suspension compliance (Kms).

With an integrated 100-watt AC/DC amplifier, precision impedance measurement, and advanced modeling capabilities, the DATS LA provides laboratory-grade analysis at a fraction of the cost of traditional industry standard test systems. Whether evaluating a driver’s small-signal behavior or large-signal limitations, this versatile system allows you to design, optimize, and validate loudspeakers with a level of detail previously inaccessible to most designers.

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DC-Biased Testing

A Breakthrough in Loudspeaker Measurement

DC Biased Impedance Measurement - U.S. Patent #11,272,301

Traditional impedance-based testing methods provide valuable information about a driver’s small-signal characteristics but fail to capture how parameters shift with cone displacement. The DATS LA introduces an industry-first approach to this problem with its patented DC-biased measurement technique, enabling precise evaluation of a driver’s non-linear electromechanical behavior as a function of excursion.

Using precisely controlled DC pulses to displace the voice coil and cone before performing impedance sweeps, DATS LA systematically captures the impact of excursion on key parameters. This results in highly accurate Bl(x) and Kms(x) curves, which illustrate motor and suspension symmetry across the driver’s operational range. By identifying non-linearities, mechanical limitations, and asymmetry, engineers can optimize motor structures, suspension designs, and excursion limits with unmatched precision.

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100W AC/DC Amplifier

Real-World Large Signal Testing

A major limitation of conventional speaker analysis systems is their inability to perform high-power measurements. The DATS LA’s integrated 100-watt amplifier overcomes this by enabling both small- and large-signal testing, allowing you to observe how T/S parameters evolve under realistic operating conditions. By increasing test signal voltage, you can evaluate how a driver’s parameters shift as it is driven outside its linear range, exposing critical performance metrics such as: 

✔ Motor force reduction due to flux modulation and coil offset

✔ Suspension stiffness variations impacting excursion limits

✔ Thermal compression and voice coil heating effects on resistance (Re) and sensitivity

✔ Bl degradation at higher outputs, limiting peak SPL capability

With this information, designers can accurately model power compression effects, excursion limits, and distortion characteristics, ensuring their systems perform consistently across a wide range of SPLs.

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Precision Measurement

Comprehensive Speaker Analysis

At its core, the DATS LA is a high-precision impedance measurement system, leveraging advanced algorithms to extract key Thiele/Small parameters (Fs, Qts, Vas, etc.) with extreme accuracy. In addition, it functions as a highly accurate LCR meter, allowing precise measurement of:

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Specifications

• Article number DATS LA
• EAN 0848791010880
• Measurement Domain Electric
• Connector USB-B
• OS-support Windows
• Frequency response 0.1 Hz - 20kHz
• Dimensions 46 mm H × 145 mm W × 274 mm D