The MTX RT50.4M 4-channel amplifier (4x40W RMS) is easy to install because it is very small in size. It slips easily under a dashboard or in a glove box. It is also equipped with ISO connectors that allow it to easily interface in cars without cutting the original cables.

• World Premiere: The ISO terminal blocks are integrated directly into the amplifier to simplify the installation
• Fits between the head-unit and the car speakers, no cables to cut, the vehicle remains original
• Connections via 2 ISO connectors and a screwed power supply terminal block
• Supplied with two 1 meter extension cords (speaker inputs, speaker outputs)
• High-level inputs (on ISO terminal block) and RCA (on RCA terminal block), HP outputs on ISO terminal block
• Automatic remote or remote by cable (no need to look for a remote on an original car radio)
• Aluminum construction for a robust quality product
• More sound quality, bass, smoothness and musicality
• Incredibly easy to install between the car stereo and the original HP cabinet
• A power supply must be drawn from the vehicle's fuse box due to the high power: 160 real watts

• CEA RMS Power: 4x 40W @4Ω THD+N ≤1%
• Signal-to-Noise Ratio (1 watt): > 90dB
• THD+Noise (Distortion) (1 watt) : ≤ 1%
• Frequency Response (±1dB): 20Hz- 30000Hz
• Maximum Input Signal: 6V
• Maximum Sensitivity: 100mV
• Power input : 6mm2 connections
• High level inputs: ISO connector
• Speaker outputs: ISO connector
• Low level inputs: RCA connector
• Dimensions: 244 x 120 x 52mm

The quality of your system will be the quality of your system weakest link. You have to balance your system with quality speakers (MTX TR TX2 TX4) and a reliable musical and dynamic amplifier (MTX TX2450)…

The power of the amplifier should not exceed that of the loudspeaker. You have to compare RMS powers with RMS powers. The amplifiers should not be exposed to moisture, excessive vibration, or high temperatures.

MTX wants you to enjoy your hearing for a long time. Excessive exposure to loud volumes can damage your hearing. The United States Department of Labor recommends not exceeding the following recommendations:
90db : maximum 8 hours / day
92dB : maximum 6 hours / day
95db : maximum 4 hours / day
97db : maximum 3 hours / day
100db : maximum 2 hours / day
102db : maximum 90 minutes / day
105db : maximum 60 minutes / day
110db : maximum 30 minutes / day
115db : maximum less than 15 minutes / day
120db : immediate danger, 0 minutes / day