Term-LAB Magnum SPL Meters & Car Audio Test Equipment

The industry-standard SPL meter for car and motorcycle audio competition — trusted by professional sound-off organizations worldwide for over 25 years.

 

Engineered by Wayne Harris — inventor of the Term-LAB — the Magnum delivers accurate, repeatable SPL measurements from everyday listening levels up to 190+ dB. Originally introduced in 1998, Term-LAB evolved past conventional microphones by developing its own proprietary sensor technology for high-SPL environments — an innovation honored at the 2003 CES Innovations Design & Engineering Showcase. Since 2015, the fully digital Term-LAB Magnum has taken that legacy further, as the official SPL meter for sound-off organizations and tens of thousands of sanctioned events worldwide.

High-SPL Sensor Technology

The Term-LAB Digital Super Sensor is purpose-built for extreme sound pressure level environments — no calibration required. Dual circuitry delivers dual-mode spl measurements:

  • Low-Frequency HIGH SPL: Engineered for sub-bass and competition testing.
  • Broadband HIGH SPL: Engineered for demo vehicles and open show formats.

 

Winner’s Edge Analysis

When fractions of a dB mean the difference between taking home the trophy or going home empty-handed, there is zero room for error. The Winner's Edge Analysis logs more than 100 measured and calculated values — including power, air density, weather, and frequency data — to help you maximize your score.

 

Engineered for the Lanes

Whether you're fine-tuning a build in the shop, prepping for the lanes, measuring a motorcycle audio system, or running an official competition, the Term-LAB Magnum delivers the accuracy that sanctioning bodies, retailers, and top competitors rely on every day.

  • Available Configurations: Single sensor, dual sensor, and combo packages.
  • XLR input for full spectrum analysis (20 Hz - 20 kHz)
  • Power Probes: Optional add-ons for simultaneous, real-time amplifier power measurement.
  • What's Included: Every Magnum system ships complete with the USB Interface, Digital Super Sensor, cables, military-grade hard case, and Term-LAB software license.

Trusted by competitors, retailers, event promoters, and certified judges across car and motorcycle audio organizations worldwide. 

Ships worldwide. Includes full Term-LAB software license — compatible with Windows 10 and Windows 11.

Frequently Asked Questions about the Term-LAB Test Equipment

What is a Term-LAB SPL Meter used for? 

A Term-LAB SPL (Sound Pressure Level) meter is a professional-grade audio analyzer designed specifically to measure the acoustic power output of high-performance audio sound systems. It is the official measurement tool used worldwide to track and certify scores for multiple car audio sound-off competitions including: dB Drag Racing, IASCA, MECA, USACi, iSPLL, Midwest SPL, EMMA, Bass Wars and MORE!

What is the most popular Term-LAB System purchased?

The most popular system is the Term-LAB Magnum MAX System. This is a fully loaded Term-LAB with 2 Sensors and 2 Power Probes. This setup allows you to measure SPL and AMPLIFIER POWER for 2 vehicles simultaneously.

<<< PURCHASE: Term-LAB Magnum MAX >>>

How accurate are Term-LAB Digital Super Sensors?

Term-LAB Digital Super Sensors utilize innovative technology to deliver accurate and consistent high sound pressure level measurements exceeding 190 dB. Built specifically for high-precision environments, each sensor features dual internal circuitry to provide maximum flexibility and accuracy under extreme acoustic pressure. This advanced internal design supports two distinct measurement modes tailored to specific testing requirements:

  • Low-Frequency High SPL: Engineered specifically for sub-bass and low-frequency analysis.
  • Broadband High SPL: Optimized for audio demo vehicles, featuring a maximum frequency range of 5 kHz.
  • The Term-LAB Super Sensor offers seamless, plug-and-play integration with existing Term-LAB Magnum and Term-LAB Rebel measurement systems, serving as the industry standard for reliable, laboratory-grade acoustic testing.

<<< PURCHASE: Term-LAB Super Sensor >>>

What is the difference between a Single-Sensor and Dual-Sensor system? 

The Single-Sensor system is perfect for individual competitors, retailers, and enthusiasts looking to tune a single vehicle. The Dual-Sensor system allows audio professionals and event promoters to measure two vehicles simultaneously in the competition lanes, drastically speeding up judging times.

<<< PURCHASE: Term-LAB Magnum Single-Sensor System >>>

<<< PURCHASE: Term-LAB Magnum Dual-Sensor System >>>

What are the benefits of a Term-LAB Digital Power Probe? 

The Term-LAB Digital Power Probe expands the capabilities of a standard setup by adding over 70 real-time measurements and True RMS power monitoring for precise amplifier analysis. It is engineered to support both single-ended and bridged outputs in high-power audio testing environment.

Designed for heavy power handling, the hardware accommodates up to 200 Vrms input voltage and 400 Amps AC current. The accompanying Term-LAB software allows for complete interface customization, providing operators with options to display up to five real-time readouts per bank from a selection of OVER 105 distinct measurements and calculations.

<<< PURCHASE: Term-LAB Digital Power Probe Kit >>>