Discontinued Audio System Tuning Devices

60 - 130db Handheld SPL Meter • Compact Size • Handheld • Accurate Readings

The Ultimate Amplifier Level Setting Disc, for Critical Evaluation of Audio Components • The ultimate test disc for determining the audible level of distortion in an audio system • No special equipment is needed

• Sound Test Kit
• Phase Tester, Probes, C-D Included
• Built-in microphone
• Built in pulse generator for both speaker level and preamp level connections directly to a component (speaker, amplifier, signal processor, etc.)

The Low Frequency Test CD #101 • Contains 99 tracks specifically designed and recorded for performing electronic and acoustic tests on audio systems • If you're serious about audio, this disc is a must-have

The Sheffield/A2000 Test CD#103 "My Disc" • Features 86 tracks for the critical evaluation of audio components, listening environments, and your critical listening ability

Audio Test CD#102 by A2000 • Designed to be used by home and pro audio speaker designers, audiophiles, engineers, and builders of car audio competition or demo vehicles • Specifically recorded for evaluation

• Professional iOS Test and Measurement Microphone
• Analyze the frequency spectrum of any environment to improve the acoustics
• Perfect for optimizing speaker placement in home theatres, cars, living rooms, live venues, etc.
• Uses processing power of your Apple Device
• SPL Dynamic Range: 28 dBA to 120 dBA
• Frequency Response: 20 - 20,000 Hz ² 3.0dB

"Your Disc" A Unique and Simple to Use Cd that Takes some of the Mystery Out of your Audio System • Was created to demonstrate different characteristics and specifications of an audio system

The Ultimate Disc Set for Critical Evaluation and Tuning of Audio Systems

Distortion Detector/Analyzer for High(er) • Distortion Detector's Circuitry Is 100% Analog • Distortion Detection Trigger Level > 1.0% Harmonic Distortion • Operating Range of Input Signal is 1.2Vrms – 200Vrms. (40,000 Watts at 1 ohm) Autoranging • Signal Present LED Trigger Voltage 750mVrms

Tone Generator & Speaker Polarity Tester • Perfect for Safely Troubleshooting and Testing Audio Systems • Output Range of 0-8 Volts • Includes RCA & Alligator Clips for Connection • 9V Speaker Popper • Auto Shutoff

Real Time Spectrum Analyzer And SPL Meter • Thirty Band Audio Analyzer • Better-Sounding Installations • Built-In IASCA, USACi And SPL Countdown Scoring • 136dB Standard Microphone

Speaker Phase Detector Installation Tuning Tool • Ensures Proper Phasing on Any Speaker • Allows you to Get Maximum Performance Out of Any Speaker • Single Channel RCA Cable Included • Phase-In & Phase-Out LED Status Indicator

Audio Frequency Generator Installation Tool • Allow you to Generate Frequencies for Each One of your Speakers • 3-Position Frequency Range Selector • Volume Control Knob • Frequency Control Knob

• Designed to add auxiliary volume to MediaMaster® source units
• Compatible with MM100s-BE, MM100s, MM80-HR, and MM50 MediaMaster® source units
• Weatherproof designed to withstand harsh marine environments
• Rotary design for easy on-the-go adjustments
• Adjust all audio zones simultaneously with one button
• Integrated LED ring with programmable brightness
• Push-button mute/unmute control

• Digital Bass Processor with 4-Channel Line Out Converter
• Restores and enhances low frequencies
• Speaker-level input for OEM and factory integration
• Dash mount remote control included

• 5 band-Band Parametric Equalizer with Digital Bass Processor
• 3 Sets of preamp outputs (front, rear and subwoofer)
• 12 volts Max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

• Digital Bass Driver Restoration Processor in Mexico Edition
• Dash mount remote gain control included
• Variable frequency boost control
• Variable subsonic crossover

• Digital Bass Reconstruction Processor in Mexican Edition
• LED max bass control indicators
• Selectable subsonic filter
• Dash mount remote control included

• Digital Bass Reconstruction Processor in Mexico Edition
• Dash mount remote gain control included
• PWM high head room power supply
• Features balanced input and bass output control