This is a simple, cost effective input design that works well for short runs in noise free environments. The operation of Advanced Rollback Protection is inaudible in most cases, but it ensures that your music keeps on playing, even under the most demanding conditions.\u003c\/p\u003e\u003cimg src=\"https:\/\/embed.widencdn.net\/svg\/jlaudio\/vxl9ecujot\/JLA-RealSink-logo.svg?u=fhkrg%20alt=\" realsink width=\"200\"\u003e\u003ch3\u003eRealSink™\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cbr\u003eVertical, cast alloy fins effectively dissipate heat, without resorting to noisy fan-cooling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetailed Information:\u003c\/strong\u003e\u003cbr\u003eMost car audio amplifiers rely on big lumps of metal that do a good job of storing heat, but not such a great job of getting rid of it. The power supply of the HD750/1 will operate with charging system voltages down to 8.5V. This manifests itself audibly as increased distortion. The power supply of the HD750/1 will operate with charging system voltages down to 8.5V. Product owned by anyone other than the original purchaser from an authorized JL Audio dealer. Uses HD-PWRPLUG2-2AWG-RP (#48284) All warranty service requires original sales receipt documentation. This ensures that power supply disturbances, non-ideal switching edge behavior, component non-linearities and other distortion-causing problems are completely cancelled and taken out of the equation.\u003c\/p\u003e\n\u003cp\u003eIn addition to the sonic benefits of Single Cycle Control Class D, the technology also results in outstanding efficiency (80% at 1\/2 rated power for the whole amplifier, including its power supply), which translates to 60% less current draw than a typical Class A\/B car amplifier of equal power. Summary:High-Fidelity, full-range Class D is a reality. Identifying HD & MHD Power Plugs: Technical Instructions HD-PWRPLUG-2-2AWG-RP (#48284) You can identify the older HD750/1 and MHD750/1 by the plastic trim around the area the plug connects to the amplifier. This contrasts with conventional, \"unregulated\" power supplies, which allow rail voltages to sag in direct proportion to drops in the supply voltage. Features: HD-PWRPLUG2-2AWG-RP - Replacement large power input plug for select HD and MHD Amplifiers; Fits the following models only: HD750/1 (excluding HD750/1 with Serial Numbers #108034000001, which use HD-PWRPLUG2-4AWG-RP) HD1200/1; MHD750/1 In noisier environments, this method cannot reject the common mode noise that could be on both RCA conductors (shield and center conductor).\u003c\/p\u003e\n\u003cp\u003eBy having more than one chassis-grounded RCA shield on a device, single-ended input designs are also more susceptible to ground loops. JL AUDIO HD SERIES HD750/1Mono subwoofer amplifier — 750 watts RMS x 1GENERAL FEATURES:mono subwoofer amplifer750 watts RMS x 1 (rated power from 1.5 to 4 ohms)variable high- and low-pass filter (50-500 Hz 12 or 24dB/octave)subsonic filter and output polarity controlremovable power and speaker plugsoptional wired remote for level controloptional HD stacking kit for stacking … 25 product ratings - JL Audio HD750/1 CLASS-D 750W HD SERIES MONO SUBWOOFER AMPLIFIER "BRANDNEW" $800.00. JL Audio speaker plug as pictured. stands for "Regulated, Intelligent Power Supply" and is a central feature of JL Audio's 'Slash' and HD amplifiers. In the image above, note the screws on either side of the opening. Comes with pictured allen wrench. With a JL Audio R.I.P.S.-equipped amplifier, the rail voltage and clean power output remain completely stable in real-world systems, resulting in superior fidelity and stability.\u003c\/p\u003e\n\u003cp\u003eThe \"Intelligent\" portion of the R.I.P.S. Detailed Information:R.I.P.S. The warranty only applies to the original purchaser from an authorized retailer. System ensures consistent power delivery over a wide range of battery voltages and load impedances. Product with defaced, altered or removed serial numbers (no valid, legible serial number = no warranty).2. technology to deliver 750 W of clean power into any impedance between 1.5 and 4 Ω, giving you the highest degree of flexibility in designing your subwoofer system. Another benefit of the Differential-Balanced Input design is that it easily accepts low-level and high-level signals from a variety of factory head unit outputs and amplifiers, including single ended “ground referenced” sources, as well as Balanced or Unbalanced “Bridged or BTL” sources. Product in which repair and/or modification has been attempted by unauthorized parties6. It's in the top 3 bestselling car mono amplifiers and has dozens of popular alternatives in the same price range, such as Arc Audio KS 1200.1 or Alpine MRV-M500. Detailed Information:Today’s vehicles are equipped with sophisticated electronics capable of generating noise and interference that can intrude into the audio path, ruining the listening experience. technology to deliver 1200 W of clean power into any impedance between 1.5 and 4 Ω, giving you the highest degree of flexibility in designing your subwoofer system. JL Audio power plug as pictured. Amplfier power and ground remote plug for JL Audio HD and MHD amps This plug is compatible with HD600/4, MHD600/4, HD900/5, MHD900/5 and older model HD750/1 and MHD750/1. Stay informed about new products and promotions.Sign-up today! JL Audio HD750/1 Manual. The entire process is seamless, automatic, and results in incredible dynamics for satellite channels and consistent power output for a wide range of subwoofer configurations. 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Great, of course, but not if power and speaker plugs JL Audio 750. With vertically-oriented fins a while, usually at higher volumes ” Check your voltage source and grounding point.4! Usually at higher volumes ” Check your voltage source and grounding point,...