{"product_id":"velocity-rza1000-4-channel-1000w-harley-amplifier","title":"Velocity RZA1000.4 — High-Power 4-Channel Class-D Amplifier for Harley-Davidson (1,100W RMS \/ 275W x4 @ 2Ω)","description":"\u003ch2\u003eVelocity RZA1000.4 – 4-Channel 1100W Amplifier for Harley-Davidson Touring\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eVelocity RZA1000.4\u003c\/strong\u003e is a compact, efficient and motorcycle-ready 4-channel amplifier designed to deliver clean 1100-watt power to high-performance Harley audio systems. Whether you're driving horn tweeters, 6.5″ mids or a set of powerful 6×9 speakers, the RZA1000.4 provides stable, high-quality output in the tight mounting spaces inside Harley fairings and saddlebags.\u003c\/p\u003e\n\u003cp\u003eThis amplifier is available in two configurations: the \u003cstrong\u003eRZA1000-WP\u003c\/strong\u003e version includes a premium waterproof 8AWG power harness kit, while the \u003cstrong\u003eRZA1000.4\u003c\/strong\u003e variant offers the amplifier on its own for riders with existing wiring solutions.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1100W x 4 channels\u003c\/strong\u003e — ideal for mids, horns and 6×9 speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Class-D design\u003c\/strong\u003e fits inside Road Glide and Street Glide fairings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium waterproof harness option\u003c\/strong\u003e ensures reliable, clean power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient thermal management\u003c\/strong\u003e designed for motorcycle environments.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePerfect for high-efficiency SPL and touring audio systems.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight, shock-resistant chassis\u003c\/strong\u003e engineered for real-world riding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy It Works on Harleys\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh efficiency\u003c\/strong\u003e minimises battery and stator load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint\u003c\/strong\u003e allows installation in tight Harley fairing chambers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-channel flexibility\u003c\/strong\u003e supports front + rear systems or mids + horns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium harness eliminates wiring guesswork\u003c\/strong\u003e (WP model).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Variants\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRZA1000-WP\u003c\/strong\u003e — Includes 8AWG waterproof power harness kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRZA1000.4\u003c\/strong\u003e — Amplifier only (no power kit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRecommended System Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFairing systems:\u003c\/strong\u003e 6.5″ mids + horn tweeters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaddlebag systems:\u003c\/strong\u003e 6×9 mids or horn-loaded components.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFront\/rear multi-channel touring setups.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPL builds\u003c\/strong\u003e that require clean, stable multi-channel power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHarley-Davidson \u003cstrong\u003eTouring Models\u003c\/strong\u003e (Street Glide, Road Glide, Ultra, CVO, etc.)\u003c\/li\u003e\n\u003cli\u003eCompatible with most aftermarket amp plates and trays\u003c\/li\u003e\n\u003cli\u003eWorks with OEM and upgraded charging systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVelocity RZA1000.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1100W × 4 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTopology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHarness Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRZA1000-WP (with kit) \/ RZA1000.4 (no kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Speakers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.5″ mids, horn tweeters, 6×9 mids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVelocity RZA1000.4 Amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRZA1000-WP Variant Includes:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003ePremium 8AWG waterproof power harness\u003c\/li\u003e\n\u003cli\u003eInline fuse assembly\u003c\/li\u003e\n\u003cli\u003eConnectors \u0026amp; power accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRZA1000.4 Variant Includes:\u003c\/strong\u003e Amplifier only (no harness)\u003c\/li\u003e\n\u003cli\u003eMounting Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNeed Help Choosing the Right Variant?\u003c\/h3\u003e\n\u003cp\u003eIf your bike already has a power distribution block or aftermarket harnessing, choose the \u003cstrong\u003eRZA1000.4\u003c\/strong\u003e. If you want a complete, waterproof, plug-ready wiring solution, choose \u003cstrong\u003eRZA1000-WP\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Velocity Speaker Design","offers":[{"title":"No - I dont need the harness","offer_id":50309283610871,"sku":"RZA1000.4","price":1186.0,"currency_code":"AUD","in_stock":true},{"title":"Yes - I want the Premium Harness Kit","offer_id":50309283643639,"sku":"RZA1000 WP","price":1336.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6505\/1639\/files\/Velocity-RZA1000_4-High-Power-4-Channel-Class-D-Amplifier-for-Harley-Davidson-1100W-RMS-275W-x4-2O.jpg?v=1779069989","url":"https:\/\/www.motorcycleaudio.com.au\/products\/velocity-rza1000-4-channel-1000w-harley-amplifier","provider":"Motorcycle Audio Australia","version":"1.0","type":"link"}