{"product_id":"crunch-dr-2725-1d-mono-block-subwoofer-amplifier","title":"Crunch DR-2725.1D Mono Block Subwoofer Amplifier","description":"\u003cp\u003eThe Crunch DR-2725.1D is a compact mono Class D amplifier designed to power a dedicated subwoofer system in a vehicle. It provides a single-channel platform for adding bass without requiring a large multi-channel amplifier. With output ratings at 2- and 4-ohm loads, it is suited to systems built around compatible subwoofer wiring.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for listeners who want dedicated low-frequency reinforcement while retaining adjustment over how the subwoofer integrates with the rest of the audio system. Its variable low-pass crossover, subsonic filter, and bass control help tailor the bass range to the enclosure, subwoofer, and front speakers. A wired bass remote provides convenient level adjustment from the cabin.\u003c\/p\u003e\u003cp\u003eThe DR-2725.1D uses Class D topology and a pulse-width-modulated power supply for an efficient, space-conscious bass amplifier design. Crunch also specifies proprietary SPEED-FET MOSFET output components and a low-noise preamplifier circuit. These elements are paired with RCA signal inputs and adjustable input sensitivity for connection to a compatible source unit.\u003c\/p\u003e\u003cp\u003eThermal management is addressed with Crunch Quick Thermal Dispersion technology and an aluminum heat sink. The amplifier also includes LED protection diagnostics for overload and speaker-short monitoring. Its selectable logo illumination can be set to VU-meter operation, constant red, or off.\u003c\/p\u003e\u003cp\u003eAt just over eight inches long, the DR-2725.1D can fit into many amplifier mounting locations when ventilation and secure mounting are planned correctly. It is a mono-only amplifier, making it a focused choice for a subwoofer channel rather than full-range speakers. Pair it with a properly wired 2- or 4-ohm subwoofer load, suitable power wiring, and an externally fused battery connection.\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 amplification for a subwoofer channel in a compact chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Output:\u003c\/strong\u003e Supports compatible 2-ohm and 4-ohm subwoofer configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e Adjusts the subwoofer cutoff from 40Hz to 300Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubsonic Filter:\u003c\/strong\u003e Provides adjustable filtering from 10Hz to 40Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Lets you adjust bass level from the driver area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQTD Aluminum Heat Sink:\u003c\/strong\u003e Helps manage heat during normal operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe DR-2725.1D has a black V-DRIVE-series chassis with an aluminum QTD heat sink, nickel-plated brass terminals, screw-down connections, and an LED logo display. The front lighting offers VU-meter, constant-red, and off modes. An end-panel LED VU meter and protection indicators provide visual status during setup and use.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely on a surface with adequate airflow and do not install it upside down. Use 4 AWG cable at the +12V and ground terminals, 8 GA speaker wire at the speaker terminals, and an external 100A fuse placed near the battery connection. Connect a compatible RCA source signal, set gain carefully, and match the final subwoofer load to the amplifier's 2-ohm minimum operating impedance.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45623434379334,"sku":"DR-2725-1D","price":141.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71tGIiPzbqL.jpg?v=1784372754","url":"https:\/\/audiowatt.store\/products\/crunch-dr-2725-1d-mono-block-subwoofer-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}