Memphis MJP1500.1 1500W RMS Monoblock Subwoofer Amplifier

The Memphis MJP1500.1 is a mono car subwoofer amplifier designed to supply substantial low-frequency power from a compact chassis. It is rated for 1-ohm operation and delivers up to 1500 watts RMS to a single subwoofer system. This makes it a practical choice for listeners building a dedicated bass upgrade rather than powering full-range speakers.

Its power ratings provide flexibility for different final subwoofer loads. The amplifier is rated at 675 watts RMS at 4 ohms, 1050 watts RMS at 2 ohms, and 1500 watts RMS at 1 ohm. Matching the amplifier to a properly wired subwoofer system helps use its output capability appropriately.

The MJP1500.1 is built for controlled bass tuning, with a variable low-pass crossover and a subsonic filter. These adjustments allow the amplifier to focus output on low frequencies while helping tailor response for the subwoofer enclosure and music preferences. A variable EQ bass boost provides another adjustment for low-end balance.

An extruded aluminum heatsink forms the amplifier chassis and is intended to help manage heat during operation. Its 7.5 x 11 x 2-inch footprint is relatively compact for a 1500-watt RMS mono amplifier. The low-profile design can suit trunk, rear-seat, or other appropriately ventilated mounting locations.

For system integration, the MJP1500.1 supports both low-level and high-level input ranges. It can work with many aftermarket receivers through preamp-level signals or with systems using speaker-level outputs. The amplifier is also strap-able with compatible mono amplifiers for installations that require a linked amplifier arrangement.

Key Features

• 1-Ohm Stable Output: Delivers up to 1500 watts RMS into a 1-ohm final load.
• Three RMS Ratings: Provides rated output at 4-, 2-, and 1-ohm speaker loads.
• Variable Low-Pass Crossover: Adjusts the subwoofer frequency range from 32 to 200 Hz.
• Subsonic Filter: Provides adjustable filtering from 10 to 50 Hz.
• Dual Input Compatibility: Accepts low-level RCA or high-level speaker signal ranges.
• Strap-Able Mono Design: Supports linking with compatible mono amplifiers for expanded systems.

Design & Installation

The MJP1500.1 uses an extruded aluminum heatsink chassis with exposed aluminum accents and an orange accent strip. This construction supports heat dissipation while maintaining a compact 2-inch height. The amplifier is finished in black and gray.

Install the amplifier in a secure, ventilated location and wire the connected subwoofer system to a final impedance no lower than 1 ohm. Use a power kit appropriate for the installation; Memphis lists its 0GKIT as the applicable amplifier kit. Set the input sensitivity, low-pass crossover, subsonic filter, and bass EQ after confirming the source unit and enclosure configuration.