{"title":"Multifunctional Tester","description":"","products":[{"product_id":"mst-1","title":"MST1 - Multifunctional Audio Tester","description":"\u003cp\u003eThe Recoil MST-1 is a multifunctional audio tester built for technicians and enthusiasts who need a single, portable tool to handle signal testing, voltage measurement, phase checking, and continuity verification. It covers the full diagnostic workflow for car audio installations — from source to speaker — without requiring multiple separate instruments. A built-in rechargeable lithium battery and auto shutoff make it practical for real-world shop or install-bay use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTone Generator:\u003c\/strong\u003e Outputs a 5V signal across a frequency range of 13Hz to 10kHz for signal path tracing and system testing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Measurement:\u003c\/strong\u003e Reads constant DC voltage up to 32V and AC voltage up to 36V, plus AC music signal voltage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase Testing:\u003c\/strong\u003e Verifies speaker and system phase to confirm correct polarity throughout the signal chain.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuity Testing:\u003c\/strong\u003e Checks wire and signal cable continuity to quickly identify breaks or faults.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResistance Measurement:\u003c\/strong\u003e Built-in resistance meter for speaker and circuit diagnostics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacklit LCD Display:\u003c\/strong\u003e Illuminated screen for clear readings in low-light environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Ships with RCA connectors and alligator clips for flexible connection to audio components.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Recoil Audio USA","offers":[{"title":"Default Title","offer_id":51059644727574,"sku":"MST-1","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/7400\/4758\/files\/1-81.jpg?v=1772089490"},{"product_id":"tgsp","title":"TGSP - Tone Generator and Speaker Polarity Tester","description":"\u003cp\u003eThe Recoil TGSP is a dual-function tool that combines a variable tone generator with a 9V speaker polarity tester, giving installers everything needed to dial in and verify an audio system from a single device. With an output range of 0–8 volts across 13 to 10,000Hz, it covers the full spectrum of audio system diagnostics — from setting gain levels to confirming crossover points. Compact controls and auto shutoff make it practical for both shop use and mobile installs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable tone generator\u003c\/strong\u003e outputs 0–8V across a 13–10,000Hz frequency range for precise system calibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e9V speaker popper\u003c\/strong\u003e provides a quick visual check of speaker connection polarity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable control knobs\u003c\/strong\u003e allow independent tone and level adjustments during testing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes RCA cables and alligator clips\u003c\/strong\u003e for flexible connection to amplifiers, head units, and speakers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto shutoff\u003c\/strong\u003e extends battery life during extended diagnostic sessions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable for\u003c\/strong\u003e setting system levels, checking crossover points, verifying connections, and general troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Recoil Audio USA","offers":[{"title":"Default Title","offer_id":51059644825878,"sku":"TGSP","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/7400\/4758\/files\/TGSP.png?v=1772089507"}],"url":"https:\/\/www.recoilaudiousa.com\/collections\/multifunctional-tester.oembed","provider":"Recoil Audio USA","version":"1.0","type":"link"}