{"product_id":"pioneer-gm-dx871-class-d-mono-subwoofer-amplifier","title":"Pioneer GM-DX871 Class D Mono Subwoofer Amplifier","description":"\u003cp\u003eThe Pioneer GM-DX871 is a Class D mono amplifier designed to add dedicated subwoofer power to a vehicle audio system. It provides a single amplified channel for bass reproduction and supports loads from 1 to 8 ohms. It is suited to systems that need a compact amplifier for one subwoofer or a parallel-wired pair of subwoofers.\u003c\/p\u003e\u003cp\u003eWith continuous output ratings of 300 watts RMS at 4 ohms, 500 watts RMS at 2 ohms, and 800 watts RMS at 1 ohm, the GM-DX871 offers flexible power matching for compatible subwoofers. Its Class D design is intended to deliver substantial bass power in a relatively compact chassis. The amplifier is CTA-2006 compliant for its published power ratings.\u003c\/p\u003e\u003cp\u003eA variable low-pass filter lets the installer select a cutoff point from 40 Hz to 240 Hz. This helps keep low-frequency duties focused on the subwoofer while allowing the bass blend to be tailored to the vehicle and speaker system. The filter uses a -12 dB\/octave slope.\u003c\/p\u003e\u003cp\u003eThe GM-DX871 supports both RCA-level and speaker-level signal connections. Its supplied speaker-input wire with RCA pin cord can help integrate the amplifier with factory radios that do not provide RCA preamp outputs. Automatic input-signal detection selects between RCA-level and speaker-level input modes.\u003c\/p\u003e\u003cp\u003eA wired bass boost remote is included for convenient adjustment from the listening position. The remote controls bass boost from 0 to 18 dB at 50 Hz, while the amplifier's gain controls support a range of source-output levels. Gold-plated RCA terminals and high-current electronic components support its role as a dedicated bass amplifier in an upgraded car audio system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMono Class D Design:\u003c\/strong\u003e Delivers dedicated power for a subwoofer system in a compact amplifier format.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e800W RMS at 1 Ohm:\u003c\/strong\u003e Supports high-output compatible subwoofer configurations at 14.4 volts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e Adjusts the bass cutoff frequency from 40 Hz to 240 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Allows accessible adjustment of bass boost from the front seat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Level Input:\u003c\/strong\u003e Enables connection to many factory radios without RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Monitoring:\u003c\/strong\u003e Helps protect the amplifier during overheating, DC output, or speaker short conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GM-DX871 uses a compact chassis measuring 252 mm wide, 60 mm high, and 215 mm deep. It incorporates high-current electronic components, gold-plated RCA terminals, a POWER\/PROTECT status indicator, gain control, and low-pass filter control. The protection system indicates abnormal conditions through the POWER\/PROTECT indicator and can mute or shut down output when necessary.\u003c\/p\u003e\u003cp\u003eUse properly sized power and ground wiring, with the same gauge for both; Pioneer specifies 6 AWG for runs under 3.6 m and 4 AWG for runs under 6.4 m. A separately sold 100 A fuse should be installed within 30 cm of the battery's positive terminal, and speaker wire should be 8 to 16 AWG. Mount the amplifier securely in a ventilated location, keep it clear of carpeting, and match the connected subwoofer configuration to the amplifier's 1 to 8 ohm allowable load range.\u003c\/p\u003e","brand":"Pioneer","offers":[{"title":"Default Title","offer_id":45633217855558,"sku":"GM-DX871","price":279.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/611QlbB2r5L.jpg?v=1784418192","url":"https:\/\/audiowatt.store\/products\/pioneer-gm-dx871-class-d-mono-subwoofer-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}